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4356 lines
121 KiB
4356 lines
121 KiB
// Copyright (c) 2015-2016 The Khronos Group Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Validation tests for Control Flow Graph
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#include <array>
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#include <functional>
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#include <iterator>
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#include <sstream>
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#include <string>
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#include <utility>
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#include <vector>
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#include "gmock/gmock.h"
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#include "source/diagnostic.h"
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#include "source/spirv_target_env.h"
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#include "source/val/validate.h"
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#include "test/test_fixture.h"
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#include "test/unit_spirv.h"
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#include "test/val/val_fixtures.h"
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namespace spvtools {
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namespace val {
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namespace {
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using ::testing::HasSubstr;
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using ::testing::MatchesRegex;
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using ValidateCFG = spvtest::ValidateBase<SpvCapability>;
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using spvtest::ScopedContext;
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std::string nameOps() { return ""; }
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template <typename... Args>
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std::string nameOps(std::pair<std::string, std::string> head, Args... names) {
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return "OpName %" + head.first + " \"" + head.second + "\"\n" +
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nameOps(names...);
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}
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template <typename... Args>
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std::string nameOps(std::string head, Args... names) {
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return "OpName %" + head + " \"" + head + "\"\n" + nameOps(names...);
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}
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/// This class allows the easy creation of complex control flow without writing
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/// SPIR-V. This class is used in the test cases below.
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class Block {
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std::string label_;
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std::string body_;
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SpvOp type_;
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std::vector<Block> successors_;
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public:
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/// Creates a Block with a given label
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///
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/// @param[in]: label the label id of the block
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/// @param[in]: type the branch instruciton that ends the block
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explicit Block(std::string label, SpvOp type = SpvOpBranch)
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: label_(label), body_(), type_(type), successors_() {}
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/// Sets the instructions which will appear in the body of the block
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Block& SetBody(std::string body) {
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body_ = body;
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return *this;
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}
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Block& AppendBody(std::string body) {
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body_ += body;
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return *this;
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}
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/// Converts the block into a SPIR-V string
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operator std::string() {
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std::stringstream out;
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out << std::setw(8) << "%" + label_ + " = OpLabel \n";
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if (!body_.empty()) {
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out << body_;
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}
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switch (type_) {
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case SpvOpBranchConditional:
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out << "OpBranchConditional %cond ";
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for (Block& b : successors_) {
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out << "%" + b.label_ + " ";
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}
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break;
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case SpvOpSwitch: {
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out << "OpSwitch %one %" + successors_.front().label_;
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std::stringstream ss;
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for (size_t i = 1; i < successors_.size(); i++) {
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ss << " " << i << " %" << successors_[i].label_;
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}
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out << ss.str();
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} break;
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case SpvOpLoopMerge: {
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assert(successors_.size() == 2);
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out << "OpLoopMerge %" + successors_[0].label_ + " %" +
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successors_[0].label_ + "None";
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} break;
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case SpvOpReturn:
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assert(successors_.size() == 0);
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out << "OpReturn\n";
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break;
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case SpvOpUnreachable:
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assert(successors_.size() == 0);
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out << "OpUnreachable\n";
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break;
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case SpvOpBranch:
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assert(successors_.size() == 1);
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out << "OpBranch %" + successors_.front().label_;
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break;
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case SpvOpKill:
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assert(successors_.size() == 0);
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out << "OpKill\n";
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break;
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default:
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assert(1 == 0 && "Unhandled");
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}
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out << "\n";
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return out.str();
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}
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friend Block& operator>>(Block& curr, std::vector<Block> successors);
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friend Block& operator>>(Block& lhs, Block& successor);
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};
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/// Assigns the successors for the Block on the lhs
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Block& operator>>(Block& lhs, std::vector<Block> successors) {
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if (lhs.type_ == SpvOpBranchConditional) {
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assert(successors.size() == 2);
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} else if (lhs.type_ == SpvOpSwitch) {
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assert(successors.size() > 1);
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}
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lhs.successors_ = successors;
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return lhs;
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}
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/// Assigns the successor for the Block on the lhs
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Block& operator>>(Block& lhs, Block& successor) {
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assert(lhs.type_ == SpvOpBranch);
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lhs.successors_.push_back(successor);
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return lhs;
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}
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const std::string& GetDefaultHeader(SpvCapability cap) {
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static const std::string shader_header =
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"OpCapability Shader\n"
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"OpCapability Linkage\n"
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"OpMemoryModel Logical GLSL450\n";
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static const std::string kernel_header =
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"OpCapability Kernel\n"
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"OpCapability Linkage\n"
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"OpMemoryModel Logical OpenCL\n";
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return (cap == SpvCapabilityShader) ? shader_header : kernel_header;
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}
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const std::string& types_consts() {
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static const std::string types =
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"%voidt = OpTypeVoid\n"
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"%boolt = OpTypeBool\n"
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"%intt = OpTypeInt 32 0\n"
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"%one = OpConstant %intt 1\n"
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"%two = OpConstant %intt 2\n"
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"%ptrt = OpTypePointer Function %intt\n"
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"%funct = OpTypeFunction %voidt\n";
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return types;
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}
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INSTANTIATE_TEST_SUITE_P(StructuredControlFlow, ValidateCFG,
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::testing::Values(SpvCapabilityShader,
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SpvCapabilityKernel));
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TEST_P(ValidateCFG, LoopReachableFromEntryButNeverLeadingToReturn) {
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// In this case, the loop is reachable from a node without a predecessor,
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// but never reaches a node with a return.
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//
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// This motivates the need for the pseudo-exit node to have a node
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// from a cycle in its predecessors list. Otherwise the validator's
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// post-dominance calculation will go into an infinite loop.
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//
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// For more motivation, see
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// https://github.com/KhronosGroup/SPIRV-Tools/issues/279
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std::string str = R"(
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OpCapability Shader
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OpCapability Linkage
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OpMemoryModel Logical GLSL450
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OpName %entry "entry"
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OpName %loop "loop"
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OpName %exit "exit"
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%voidt = OpTypeVoid
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%funct = OpTypeFunction %voidt
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%main = OpFunction %voidt None %funct
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%entry = OpLabel
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OpBranch %loop
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%loop = OpLabel
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OpLoopMerge %exit %loop None
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OpBranch %loop
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%exit = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions()) << str;
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}
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TEST_P(ValidateCFG, LoopUnreachableFromEntryButLeadingToReturn) {
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// In this case, the loop is not reachable from a node without a
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// predecessor, but eventually reaches a node with a return.
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//
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// This motivates the need for the pseudo-entry node to have a node
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// from a cycle in its successors list. Otherwise the validator's
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// dominance calculation will go into an infinite loop.
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//
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// For more motivation, see
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// https://github.com/KhronosGroup/SPIRV-Tools/issues/279
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// Before that fix, we'd have an infinite loop when calculating
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// post-dominators.
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std::string str = R"(
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OpCapability Shader
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OpCapability Linkage
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OpMemoryModel Logical GLSL450
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OpName %entry "entry"
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OpName %loop "loop"
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OpName %cont "cont"
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OpName %exit "exit"
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%voidt = OpTypeVoid
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%funct = OpTypeFunction %voidt
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%boolt = OpTypeBool
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%false = OpConstantFalse %boolt
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%main = OpFunction %voidt None %funct
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%entry = OpLabel
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OpReturn
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%loop = OpLabel
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OpLoopMerge %exit %cont None
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OpBranch %cont
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%cont = OpLabel
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OpBranchConditional %false %loop %exit
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%exit = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions())
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<< str << getDiagnosticString();
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}
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TEST_P(ValidateCFG, Simple) {
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bool is_shader = GetParam() == SpvCapabilityShader;
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Block entry("entry");
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Block loop("loop", SpvOpBranchConditional);
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Block cont("cont");
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Block merge("merge", SpvOpReturn);
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entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
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if (is_shader) {
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loop.SetBody("OpLoopMerge %merge %cont None\n");
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}
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps("loop", "entry", "cont", "merge",
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std::make_pair("func", "Main")) +
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types_consts() +
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"%func = OpFunction %voidt None %funct\n";
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str += entry >> loop;
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str += loop >> std::vector<Block>({cont, merge});
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str += cont >> loop;
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str += merge;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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TEST_P(ValidateCFG, Variable) {
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Block entry("entry");
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Block cont("cont");
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Block exit("exit", SpvOpReturn);
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entry.SetBody("%var = OpVariable %ptrt Function\n");
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps(std::make_pair("func", "Main")) + types_consts() +
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" %func = OpFunction %voidt None %funct\n";
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str += entry >> cont;
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str += cont >> exit;
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str += exit;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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TEST_P(ValidateCFG, VariableNotInFirstBlockBad) {
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Block entry("entry");
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Block cont("cont");
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Block exit("exit", SpvOpReturn);
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// This operation should only be performed in the entry block
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cont.SetBody("%var = OpVariable %ptrt Function\n");
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps(std::make_pair("func", "Main")) + types_consts() +
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" %func = OpFunction %voidt None %funct\n";
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str += entry >> cont;
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str += cont >> exit;
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str += exit;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("All OpVariable instructions in a function must be the "
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"first instructions in the first block"));
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}
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TEST_P(ValidateCFG, BlockSelfLoopIsOk) {
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bool is_shader = GetParam() == SpvCapabilityShader;
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Block entry("entry");
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Block loop("loop", SpvOpBranchConditional);
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Block merge("merge", SpvOpReturn);
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entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
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if (is_shader) loop.SetBody("OpLoopMerge %merge %loop None\n");
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps("loop", "merge", std::make_pair("func", "Main")) +
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types_consts() +
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"%func = OpFunction %voidt None %funct\n";
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str += entry >> loop;
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// loop branches to itself, but does not trigger an error.
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str += loop >> std::vector<Block>({merge, loop});
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str += merge;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions()) << getDiagnosticString();
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}
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TEST_P(ValidateCFG, BlockAppearsBeforeDominatorBad) {
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bool is_shader = GetParam() == SpvCapabilityShader;
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Block entry("entry");
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Block cont("cont");
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Block branch("branch", SpvOpBranchConditional);
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Block merge("merge", SpvOpReturn);
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entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
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if (is_shader) branch.SetBody("OpSelectionMerge %merge None\n");
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps("cont", "branch", std::make_pair("func", "Main")) +
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types_consts() +
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"%func = OpFunction %voidt None %funct\n";
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str += entry >> branch;
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str += cont >> merge; // cont appears before its dominator
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str += branch >> std::vector<Block>({cont, merge});
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str += merge;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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MatchesRegex("Block .\\[%cont\\] appears in the binary "
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"before its dominator .\\[%branch\\]\n"
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" %branch = OpLabel\n"));
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}
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TEST_P(ValidateCFG, MergeBlockTargetedByMultipleHeaderBlocksBad) {
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bool is_shader = GetParam() == SpvCapabilityShader;
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Block entry("entry");
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Block loop("loop");
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Block selection("selection", SpvOpBranchConditional);
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Block merge("merge", SpvOpReturn);
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entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
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if (is_shader) loop.SetBody(" OpLoopMerge %merge %loop None\n");
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// cannot share the same merge
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if (is_shader) selection.SetBody("OpSelectionMerge %merge None\n");
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps("merge", std::make_pair("func", "Main")) +
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types_consts() +
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"%func = OpFunction %voidt None %funct\n";
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str += entry >> loop;
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str += loop >> selection;
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str += selection >> std::vector<Block>({loop, merge});
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str += merge;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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if (is_shader) {
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ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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MatchesRegex("Block .\\[%merge\\] is already a merge block "
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"for another header\n"
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" %Main = OpFunction %void None %9\n"));
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} else {
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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}
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TEST_P(ValidateCFG, MergeBlockTargetedByMultipleHeaderBlocksSelectionBad) {
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bool is_shader = GetParam() == SpvCapabilityShader;
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Block entry("entry");
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Block loop("loop", SpvOpBranchConditional);
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Block selection("selection", SpvOpBranchConditional);
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Block merge("merge", SpvOpReturn);
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entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
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if (is_shader) selection.SetBody(" OpSelectionMerge %merge None\n");
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// cannot share the same merge
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if (is_shader) loop.SetBody(" OpLoopMerge %merge %loop None\n");
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps("merge", std::make_pair("func", "Main")) +
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types_consts() +
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"%func = OpFunction %voidt None %funct\n";
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str += entry >> selection;
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str += selection >> std::vector<Block>({merge, loop});
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str += loop >> std::vector<Block>({loop, merge});
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str += merge;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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if (is_shader) {
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ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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MatchesRegex("Block .\\[%merge\\] is already a merge block "
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"for another header\n"
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" %Main = OpFunction %void None %9\n"));
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} else {
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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}
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TEST_P(ValidateCFG, BranchTargetFirstBlockBadSinceEntryBlock) {
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Block entry("entry");
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Block bad("bad");
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Block end("end", SpvOpReturn);
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps("entry", "bad", std::make_pair("func", "Main")) +
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types_consts() +
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"%func = OpFunction %voidt None %funct\n";
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str += entry >> bad;
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str += bad >> entry; // Cannot target entry block
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str += end;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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MatchesRegex("First block .\\[%entry\\] of function "
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".\\[%Main\\] is targeted by block .\\[%bad\\]\n"
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" %Main = OpFunction %void None %10\n"));
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}
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TEST_P(ValidateCFG, BranchTargetFirstBlockBadSinceValue) {
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Block entry("entry");
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entry.SetBody("%undef = OpUndef %boolt\n");
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Block bad("bad");
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Block end("end", SpvOpReturn);
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Block badvalue("undef"); // This references the OpUndef.
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std::string str = GetDefaultHeader(GetParam()) +
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nameOps("entry", "bad", std::make_pair("func", "Main")) +
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types_consts() +
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"%func = OpFunction %voidt None %funct\n";
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str += entry >> bad;
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str +=
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bad >> badvalue; // Check branch to a function value (it's not a block!)
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str += end;
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str += "OpFunctionEnd\n";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("'Target Label' operands for OpBranch must "
|
|
"be the ID of an OpLabel instruction"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchConditionalTrueTargetFirstBlockBad) {
|
|
Block entry("entry");
|
|
Block bad("bad", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
bad.SetBody(" OpLoopMerge %entry %exit None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str += bad >> std::vector<Block>({entry, exit}); // cannot target entry block
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("First block .\\[%entry\\] of function .\\[%Main\\] "
|
|
"is targeted by block .\\[%bad\\]\n"
|
|
" %Main = OpFunction %void None %10\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchConditionalFalseTargetFirstBlockBad) {
|
|
Block entry("entry");
|
|
Block bad("bad", SpvOpBranchConditional);
|
|
Block t("t");
|
|
Block merge("merge");
|
|
Block end("end", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
bad.SetBody("OpLoopMerge %merge %cont None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str += bad >> std::vector<Block>({t, entry});
|
|
str += merge >> end;
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("First block .\\[%entry\\] of function .\\[%Main\\] "
|
|
"is targeted by block .\\[%bad\\]\n"
|
|
" %Main = OpFunction %void None %10\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SwitchTargetFirstBlockBad) {
|
|
Block entry("entry");
|
|
Block bad("bad", SpvOpSwitch);
|
|
Block block1("block1");
|
|
Block block2("block2");
|
|
Block block3("block3");
|
|
Block def("def"); // default block
|
|
Block merge("merge");
|
|
Block end("end", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
bad.SetBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str += bad >> std::vector<Block>({def, block1, block2, block3, entry});
|
|
str += def >> merge;
|
|
str += block1 >> merge;
|
|
str += block2 >> merge;
|
|
str += block3 >> merge;
|
|
str += merge >> end;
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("First block .\\[%entry\\] of function .\\[%Main\\] "
|
|
"is targeted by block .\\[%bad\\]\n"
|
|
" %Main = OpFunction %void None %10\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchToBlockInOtherFunctionBad) {
|
|
Block entry("entry");
|
|
Block middle("middle", SpvOpBranchConditional);
|
|
Block end("end", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
middle.SetBody("OpSelectionMerge %end None\n");
|
|
|
|
Block entry2("entry2");
|
|
Block middle2("middle2");
|
|
Block end2("end2", SpvOpReturn);
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("middle2", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> middle;
|
|
str += middle >> std::vector<Block>({end, middle2});
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
str += "%func2 = OpFunction %voidt None %funct\n";
|
|
str += entry2 >> middle2;
|
|
str += middle2 >> end2;
|
|
str += end2;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("Block\\(s\\) \\{.\\[%middle2\\]\\} are referenced but not "
|
|
"defined in function .\\[%Main\\]\n"
|
|
" %Main = OpFunction %void None %9\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, HeaderDoesntDominatesMergeBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block head("head", SpvOpBranchConditional);
|
|
Block f("f");
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
head.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
if (is_shader) head.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("head", "merge", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> merge;
|
|
str += head >> std::vector<Block>({merge, f});
|
|
str += f >> merge;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("The selection construct with the selection header "
|
|
".\\[%head\\] does not dominate the merge block "
|
|
".\\[%merge\\]\n %merge = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, HeaderDoesntStrictlyDominateMergeBad) {
|
|
// If a merge block is reachable, then it must be strictly dominated by
|
|
// its header block.
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block head("head", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
head.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
if (is_shader) head.AppendBody("OpSelectionMerge %head None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("head", "exit", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += head >> std::vector<Block>({exit, exit});
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("The selection construct with the selection header "
|
|
".\\[%head\\] does not strictly dominate the merge block "
|
|
".\\[%head\\]\n %head = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions()) << str;
|
|
}
|
|
}
|
|
|
|
std::string GetUnreachableMergeNoMergeInst(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = header;
|
|
str += nameOps("branch", "merge", std::make_pair("func", "Main"));
|
|
str += types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeNoMergeInst) {
|
|
CompileSuccessfully(GetUnreachableMergeNoMergeInst(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableMergeTerminatedBy(SpvCapability cap, SpvOp op) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", op);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
str += nameOps("branch", "merge", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeTerminatedByOpUnreachable) {
|
|
CompileSuccessfully(
|
|
GetUnreachableMergeTerminatedBy(GetParam(), SpvOpUnreachable));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, UnreachableMergeTerminatedByOpKill) {
|
|
CompileSuccessfully(
|
|
GetUnreachableMergeTerminatedBy(SpvCapabilityShader, SpvOpKill));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeTerminatedByOpReturn) {
|
|
CompileSuccessfully(GetUnreachableMergeTerminatedBy(GetParam(), SpvOpReturn));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableContinueTerminatedBy(SpvCapability cap, SpvOp op) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranch);
|
|
Block merge("merge", SpvOpReturn);
|
|
Block target("target", op);
|
|
|
|
if (op == SpvOpBranch) target >> branch;
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpLoopMerge %merge %target None\n");
|
|
|
|
str += nameOps("branch", "merge", "target", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({merge});
|
|
str += merge;
|
|
str += target;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableContinueTerminatedBySpvOpUnreachable) {
|
|
CompileSuccessfully(
|
|
GetUnreachableContinueTerminatedBy(GetParam(), SpvOpUnreachable));
|
|
if (GetParam() == SpvCapabilityShader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("targeted by 0 back-edge blocks"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_F(ValidateCFG, UnreachableContinueTerminatedBySpvOpKill) {
|
|
CompileSuccessfully(
|
|
GetUnreachableContinueTerminatedBy(SpvCapabilityShader, SpvOpKill));
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("targeted by 0 back-edge blocks"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableContinueTerminatedBySpvOpReturn) {
|
|
CompileSuccessfully(
|
|
GetUnreachableContinueTerminatedBy(GetParam(), SpvOpReturn));
|
|
if (GetParam() == SpvCapabilityShader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("targeted by 0 back-edge blocks"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableContinueTerminatedBySpvOpBranch) {
|
|
CompileSuccessfully(
|
|
GetUnreachableContinueTerminatedBy(GetParam(), SpvOpBranch));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableMergeUnreachableMergeInst(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block body("body", SpvOpReturn);
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", SpvOpUnreachable);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
str += nameOps("branch", "merge", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += body;
|
|
str += merge;
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeUnreachableMergeInst) {
|
|
CompileSuccessfully(GetUnreachableMergeUnreachableMergeInst(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableContinueUnreachableLoopInst(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block body("body", SpvOpReturn);
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranch);
|
|
Block merge("merge", SpvOpReturn);
|
|
Block target("target", SpvOpBranch);
|
|
|
|
target >> branch;
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpLoopMerge %merge %target None\n");
|
|
|
|
str += nameOps("branch", "merge", "target", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += body;
|
|
str += target;
|
|
str += merge;
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({merge});
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableContinueUnreachableLoopInst) {
|
|
CompileSuccessfully(GetUnreachableContinueUnreachableLoopInst(GetParam()));
|
|
if (GetParam() == SpvCapabilityShader) {
|
|
// Shader causes additional structured CFG checks that cause a failure.
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Back-edges (1[%branch] -> 3[%target]) can only be "
|
|
"formed between a block and a loop header."));
|
|
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
std::string GetUnreachableMergeWithComplexBody(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", SpvOpUnreachable);
|
|
|
|
entry.AppendBody("%placeholder = OpVariable %intptrt Function\n");
|
|
entry.AppendBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
merge.AppendBody("OpStore %placeholder %one\n");
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
str += nameOps("branch", "merge", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%intptrt = OpTypePointer Function %intt\n";
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeWithComplexBody) {
|
|
CompileSuccessfully(GetUnreachableMergeWithComplexBody(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableContinueWithComplexBody(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranch);
|
|
Block merge("merge", SpvOpReturn);
|
|
Block target("target", SpvOpBranch);
|
|
|
|
target >> branch;
|
|
|
|
entry.AppendBody("%placeholder = OpVariable %intptrt Function\n");
|
|
target.AppendBody("OpStore %placeholder %one\n");
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpLoopMerge %merge %target None\n");
|
|
|
|
str += nameOps("branch", "merge", "target", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%intptrt = OpTypePointer Function %intt\n";
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({merge});
|
|
str += merge;
|
|
str += target;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableContinueWithComplexBody) {
|
|
CompileSuccessfully(GetUnreachableContinueWithComplexBody(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableMergeWithBranchUse(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpBranch);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", SpvOpUnreachable);
|
|
|
|
entry.AppendBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
str += nameOps("branch", "merge", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += t >> merge;
|
|
str += f;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeWithBranchUse) {
|
|
CompileSuccessfully(GetUnreachableMergeWithBranchUse(GetParam()));
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableMergeWithMultipleUses(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", SpvOpUnreachable);
|
|
Block duplicate("duplicate", SpvOpBranchConditional);
|
|
|
|
entry.AppendBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader) {
|
|
branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
duplicate.AppendBody("OpSelectionMerge %merge None\n");
|
|
}
|
|
|
|
str += nameOps("branch", "merge", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += duplicate >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeWithMultipleUses) {
|
|
CompileSuccessfully(GetUnreachableMergeWithMultipleUses(GetParam()));
|
|
if (GetParam() == SpvCapabilityShader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("is already a merge block for another header"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
std::string GetUnreachableContinueWithBranchUse(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block foo("foo", SpvOpBranch);
|
|
Block branch("branch", SpvOpBranch);
|
|
Block merge("merge", SpvOpReturn);
|
|
Block target("target", SpvOpBranch);
|
|
|
|
foo >> target;
|
|
target >> branch;
|
|
|
|
entry.AppendBody("%placeholder = OpVariable %intptrt Function\n");
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader)
|
|
branch.AppendBody("OpLoopMerge %merge %target None\n");
|
|
|
|
str += nameOps("branch", "merge", "target", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%intptrt = OpTypePointer Function %intt\n";
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({merge});
|
|
str += merge;
|
|
str += target;
|
|
str += foo;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableContinueWithBranchUse) {
|
|
CompileSuccessfully(GetUnreachableContinueWithBranchUse(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetReachableMergeAndContinue(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranch);
|
|
Block merge("merge", SpvOpReturn);
|
|
Block target("target", SpvOpBranch);
|
|
Block body("body", SpvOpBranchConditional);
|
|
Block t("t", SpvOpBranch);
|
|
Block f("f", SpvOpBranch);
|
|
|
|
target >> branch;
|
|
body.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
t >> merge;
|
|
f >> target;
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader) {
|
|
branch.AppendBody("OpLoopMerge %merge %target None\n");
|
|
body.AppendBody("OpSelectionMerge %f None\n");
|
|
}
|
|
|
|
str += nameOps("branch", "merge", "target", "body", "t", "f",
|
|
std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({body});
|
|
str += body >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += target;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, ReachableMergeAndContinue) {
|
|
CompileSuccessfully(GetReachableMergeAndContinue(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableMergeAndContinue(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranch);
|
|
Block merge("merge", SpvOpReturn);
|
|
Block target("target", SpvOpBranch);
|
|
Block body("body", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
|
|
target >> branch;
|
|
body.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
std::string str = header;
|
|
if (cap == SpvCapabilityShader) {
|
|
branch.AppendBody("OpLoopMerge %merge %target None\n");
|
|
body.AppendBody("OpSelectionMerge %target None\n");
|
|
}
|
|
|
|
str += nameOps("branch", "merge", "target", "body", "t", "f",
|
|
std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({body});
|
|
str += body >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += target;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeAndContinue) {
|
|
CompileSuccessfully(GetUnreachableMergeAndContinue(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableBlock(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block unreachable("unreachable");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
std::string str = header;
|
|
str += nameOps("unreachable", "exit", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
str += entry >> exit;
|
|
str += unreachable >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableBlock) {
|
|
CompileSuccessfully(GetUnreachableBlock(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
std::string GetUnreachableBranch(SpvCapability cap) {
|
|
std::string header = GetDefaultHeader(cap);
|
|
|
|
Block entry("entry");
|
|
Block unreachable("unreachable", SpvOpBranchConditional);
|
|
Block unreachablechildt("unreachablechildt");
|
|
Block unreachablechildf("unreachablechildf");
|
|
Block merge("merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
unreachable.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (cap == SpvCapabilityShader)
|
|
unreachable.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = header;
|
|
str += nameOps("unreachable", "exit", std::make_pair("func", "Main"));
|
|
str += types_consts();
|
|
str += "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> exit;
|
|
str +=
|
|
unreachable >> std::vector<Block>({unreachablechildt, unreachablechildf});
|
|
str += unreachablechildt >> merge;
|
|
str += unreachablechildf >> merge;
|
|
str += merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
return str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableBranch) {
|
|
CompileSuccessfully(GetUnreachableBranch(GetParam()));
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, EmptyFunction) {
|
|
std::string str = GetDefaultHeader(GetParam()) + std::string(types_consts()) +
|
|
R"(%func = OpFunction %voidt None %funct
|
|
%l = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SingleBlockLoop) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.AppendBody("OpLoopMerge %exit %loop None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) + std::string(types_consts()) +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({loop, exit});
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, NestedLoops) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop1("loop1");
|
|
Block loop1_cont_break_block("loop1_cont_break_block",
|
|
SpvOpBranchConditional);
|
|
Block loop2("loop2", SpvOpBranchConditional);
|
|
Block loop2_merge("loop2_merge");
|
|
Block loop1_merge("loop1_merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop1.SetBody("OpLoopMerge %loop1_merge %loop2 None\n");
|
|
loop2.SetBody("OpLoopMerge %loop2_merge %loop2 None\n");
|
|
}
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("loop2", "loop2_merge") + types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop1;
|
|
str += loop1 >> loop1_cont_break_block;
|
|
str += loop1_cont_break_block >> std::vector<Block>({loop1_merge, loop2});
|
|
str += loop2 >> std::vector<Block>({loop2, loop2_merge});
|
|
str += loop2_merge >> loop1;
|
|
str += loop1_merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, NestedSelection) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
const int N = 256;
|
|
std::vector<Block> if_blocks;
|
|
std::vector<Block> merge_blocks;
|
|
Block inner("inner");
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
if_blocks.emplace_back("if0", SpvOpBranchConditional);
|
|
|
|
if (is_shader) if_blocks[0].SetBody("OpSelectionMerge %if_merge0 None\n");
|
|
merge_blocks.emplace_back("if_merge0", SpvOpReturn);
|
|
|
|
for (int i = 1; i < N; i++) {
|
|
std::stringstream ss;
|
|
ss << i;
|
|
if_blocks.emplace_back("if" + ss.str(), SpvOpBranchConditional);
|
|
if (is_shader)
|
|
if_blocks[i].SetBody("OpSelectionMerge %if_merge" + ss.str() + " None\n");
|
|
merge_blocks.emplace_back("if_merge" + ss.str(), SpvOpBranch);
|
|
}
|
|
std::string str = GetDefaultHeader(GetParam()) + std::string(types_consts()) +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> if_blocks[0];
|
|
for (int i = 0; i < N - 1; i++) {
|
|
str +=
|
|
if_blocks[i] >> std::vector<Block>({if_blocks[i + 1], merge_blocks[i]});
|
|
}
|
|
str += if_blocks.back() >> std::vector<Block>({inner, merge_blocks.back()});
|
|
str += inner >> merge_blocks.back();
|
|
for (int i = N - 1; i > 0; i--) {
|
|
str += merge_blocks[i] >> merge_blocks[i - 1];
|
|
}
|
|
str += merge_blocks[0];
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BackEdgeBlockDoesntPostDominateContinueTargetBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop1("loop1", SpvOpBranchConditional);
|
|
Block loop2("loop2", SpvOpBranchConditional);
|
|
Block loop2_merge("loop2_merge");
|
|
Block loop1_cont("loop1_cont", SpvOpBranchConditional);
|
|
Block be_block("be_block");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop1.SetBody("OpLoopMerge %exit %loop1_cont None\n");
|
|
loop2.SetBody("OpLoopMerge %loop2_merge %loop2 None\n");
|
|
}
|
|
|
|
std::string str =
|
|
GetDefaultHeader(GetParam()) +
|
|
nameOps("loop1", "loop2", "be_block", "loop1_cont", "loop2_merge") +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop1;
|
|
str += loop1 >> std::vector<Block>({loop2, exit});
|
|
str += loop2 >> std::vector<Block>({loop2, loop2_merge});
|
|
str += loop2_merge >> loop1_cont;
|
|
str += loop1_cont >> std::vector<Block>({be_block, exit});
|
|
str += be_block >> loop1;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (GetParam() == SpvCapabilityShader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[%loop1_cont\\] is not post dominated by the "
|
|
"back-edge block .\\[%be_block\\]\n"
|
|
" %be_block = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchingToNonLoopHeaderBlockBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block split("split", SpvOpBranchConditional);
|
|
Block t("t");
|
|
Block f("f");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) split.SetBody("OpSelectionMerge %exit None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) + nameOps("split", "f") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> split;
|
|
str += split >> std::vector<Block>({t, f});
|
|
str += t >> exit;
|
|
str += f >> split;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("Back-edges \\(.\\[%f\\] -> .\\[%split\\]\\) can only "
|
|
"be formed between a block and a loop header.\n"
|
|
" %f = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchingToSameNonLoopHeaderBlockBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block split("split", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) split.SetBody("OpSelectionMerge %exit None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) + nameOps("split") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> split;
|
|
str += split >> std::vector<Block>({split, exit});
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex(
|
|
"Back-edges \\(.\\[%split\\] -> .\\[%split\\]\\) can only be "
|
|
"formed between a block and a loop header.\n %split = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, MultipleBackEdgeBlocksToLoopHeaderBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block back0("back0");
|
|
Block back1("back1");
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %back0 None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("loop", "back0", "back1") + types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({back0, back1});
|
|
str += back0 >> loop;
|
|
str += back1 >> loop;
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex(
|
|
"Loop header .\\[%loop\\] is targeted by 2 back-edge blocks but "
|
|
"the standard requires exactly one\n %loop = OpLabel\n"))
|
|
<< str;
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, ContinueTargetMustBePostDominatedByBackEdge) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block cheader("cheader", SpvOpBranchConditional);
|
|
Block be_block("be_block");
|
|
Block merge("merge", SpvOpReturn);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %cheader None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("cheader", "be_block") + types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({cheader, merge});
|
|
str += cheader >> std::vector<Block>({exit, be_block});
|
|
str += exit; // Branches out of a continue construct
|
|
str += be_block >> loop;
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[%cheader\\] is not post dominated by the "
|
|
"back-edge block .\\[%be_block\\]\n"
|
|
" %be_block = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchOutOfConstructToMergeBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block cont("cont", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %loop None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) + nameOps("cont", "loop") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({cont, merge});
|
|
str += cont >> std::vector<Block>({loop, merge});
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[%loop\\] is not post dominated by the "
|
|
"back-edge block .\\[%cont\\]\n"
|
|
" %cont = OpLabel\n"))
|
|
<< str;
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchOutOfConstructBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block cont("cont", SpvOpBranchConditional);
|
|
Block merge("merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %loop None\n");
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) + nameOps("cont", "loop") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({cont, merge});
|
|
str += cont >> std::vector<Block>({loop, exit});
|
|
str += merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[%loop\\] is not post dominated by the "
|
|
"back-edge block .\\[%cont\\]\n"
|
|
" %cont = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_F(ValidateCFG, OpSwitchToUnreachableBlock) {
|
|
Block entry("entry", SpvOpSwitch);
|
|
Block case0("case0");
|
|
Block case1("case1");
|
|
Block case2("case2");
|
|
Block def("default", SpvOpUnreachable);
|
|
Block phi("phi", SpvOpReturn);
|
|
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %main "main" %id
|
|
OpExecutionMode %main LocalSize 1 1 1
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpDecorate %id BuiltIn GlobalInvocationId
|
|
%void = OpTypeVoid
|
|
%voidf = OpTypeFunction %void
|
|
%u32 = OpTypeInt 32 0
|
|
%f32 = OpTypeFloat 32
|
|
%uvec3 = OpTypeVector %u32 3
|
|
%fvec3 = OpTypeVector %f32 3
|
|
%uvec3ptr = OpTypePointer Input %uvec3
|
|
%id = OpVariable %uvec3ptr Input
|
|
%one = OpConstant %u32 1
|
|
%three = OpConstant %u32 3
|
|
%main = OpFunction %void None %voidf
|
|
)";
|
|
|
|
entry.SetBody(
|
|
"%idval = OpLoad %uvec3 %id\n"
|
|
"%x = OpCompositeExtract %u32 %idval 0\n"
|
|
"%selector = OpUMod %u32 %x %three\n"
|
|
"OpSelectionMerge %phi None\n");
|
|
str += entry >> std::vector<Block>({def, case0, case1, case2});
|
|
str += case1 >> phi;
|
|
str += def;
|
|
str += phi;
|
|
str += case0 >> phi;
|
|
str += case2 >> phi;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopWithZeroBackEdgesBad) {
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpName %loop "loop"
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%main = OpFunction %voidt None %funct
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %loop None
|
|
OpBranch %exit
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("Loop header .\\[%loop\\] is targeted by "
|
|
"0 back-edge blocks but the standard requires exactly "
|
|
"one\n %loop = OpLabel\n"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopWithBackEdgeFromUnreachableContinueConstructGood) {
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpName %loop "loop"
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%floatt = OpTypeFloat 32
|
|
%boolt = OpTypeBool
|
|
%one = OpConstant %floatt 1
|
|
%two = OpConstant %floatt 2
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %cont None
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
%cond = OpFOrdLessThan %boolt %one %two
|
|
OpBranchConditional %cond %body %exit
|
|
%body = OpLabel
|
|
OpReturn
|
|
%cont = OpLabel ; Reachable only from OpLoopMerge ContinueTarget parameter
|
|
OpBranch %loop ; Should be considered a back-edge
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions()) << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG,
|
|
NestedConstructWithUnreachableMergeBlockBranchingToOuterMergeBlock) {
|
|
// Test for https://github.com/KhronosGroup/SPIRV-Tools/issues/297
|
|
// The nested construct has an unreachable merge block. In the
|
|
// augmented CFG that merge block
|
|
// we still determine that the
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry", SpvOpBranchConditional);
|
|
Block inner_head("inner_head", SpvOpBranchConditional);
|
|
Block inner_true("inner_true", SpvOpReturn);
|
|
Block inner_false("inner_false", SpvOpReturn);
|
|
Block inner_merge("inner_merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
entry.AppendBody("OpSelectionMerge %exit None\n");
|
|
inner_head.SetBody("OpSelectionMerge %inner_merge None\n");
|
|
}
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("entry", "inner_merge", "exit") + types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> std::vector<Block>({inner_head, exit});
|
|
str += inner_head >> std::vector<Block>({inner_true, inner_false});
|
|
str += inner_true;
|
|
str += inner_false;
|
|
str += inner_merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions()) << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG, ContinueTargetCanBeMergeBlockForNestedStructure) {
|
|
// The continue construct cannot be the merge target of a nested selection
|
|
// because the loop construct must contain "if_merge" because it contains
|
|
// "if_head".
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop");
|
|
Block if_head("if_head", SpvOpBranchConditional);
|
|
Block if_true("if_true");
|
|
Block if_merge("if_merge", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop.SetBody("OpLoopMerge %merge %if_merge None\n");
|
|
if_head.SetBody("OpSelectionMerge %if_merge None\n");
|
|
}
|
|
|
|
std::string str =
|
|
GetDefaultHeader(GetParam()) +
|
|
nameOps("entry", "loop", "if_head", "if_true", "if_merge", "merge") +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> if_head;
|
|
str += if_head >> std::vector<Block>({if_true, if_merge});
|
|
str += if_true >> if_merge;
|
|
str += if_merge >> std::vector<Block>({loop, merge});
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Header block 3[%if_head] is contained in the loop construct "
|
|
"headed "
|
|
"by 2[%loop], but its merge block 5[%if_merge] is not"));
|
|
} else {
|
|
EXPECT_THAT(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SingleLatchBlockMultipleBranchesToLoopHeader) {
|
|
// This test case ensures we allow both branches of a loop latch block
|
|
// to go back to the loop header. It still counts as a single back edge.
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block latch("latch", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop.SetBody("OpLoopMerge %merge %latch None\n");
|
|
}
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("entry", "loop", "latch", "merge") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({latch, merge});
|
|
str += latch >> std::vector<Block>({loop, loop}); // This is the key
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions())
|
|
<< str << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SingleLatchBlockHeaderContinueTargetIsItselfGood) {
|
|
// This test case ensures we don't count a Continue Target from a loop
|
|
// header to itself as a self-loop when computing back edges.
|
|
// Also, it detects that there is an edge from %latch to the pseudo-exit
|
|
// node, rather than from %loop. In particular, it detects that we
|
|
// have used the *reverse* textual order of blocks when computing
|
|
// predecessor traversal roots.
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop");
|
|
Block latch("latch");
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop.SetBody("OpLoopMerge %merge %loop None\n");
|
|
}
|
|
|
|
std::string str = GetDefaultHeader(GetParam()) +
|
|
nameOps("entry", "loop", "latch", "merge") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> latch;
|
|
str += latch >> loop;
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions())
|
|
<< str << getDiagnosticString();
|
|
}
|
|
|
|
// Unit test to check the case where a basic block is the entry block of 2
|
|
// different constructs. In this case, the basic block is the entry block of a
|
|
// continue construct as well as a selection construct. See issue# 517 for more
|
|
// details.
|
|
TEST_F(ValidateCFG, BasicBlockIsEntryBlockOfTwoConstructsGood) {
|
|
std::string spirv = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%int = OpTypeInt 32 1
|
|
%void_func = OpTypeFunction %void
|
|
%int_0 = OpConstant %int 0
|
|
%testfun = OpFunction %void None %void_func
|
|
%label_1 = OpLabel
|
|
OpBranch %start
|
|
%start = OpLabel
|
|
%cond = OpSLessThan %bool %int_0 %int_0
|
|
;
|
|
; Note: In this case, the "target" block is both the entry block of
|
|
; the continue construct of the loop as well as the entry block of
|
|
; the selection construct.
|
|
;
|
|
OpLoopMerge %loop_merge %target None
|
|
OpBranchConditional %cond %target %loop_merge
|
|
%loop_merge = OpLabel
|
|
OpReturn
|
|
%target = OpLabel
|
|
OpSelectionMerge %selection_merge None
|
|
OpBranchConditional %cond %do_stuff %do_other_stuff
|
|
%do_other_stuff = OpLabel
|
|
OpBranch %selection_merge
|
|
%selection_merge = OpLabel
|
|
OpBranch %start
|
|
%do_stuff = OpLabel
|
|
OpBranch %selection_merge
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(spirv);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, OpReturnInNonVoidFunc) {
|
|
std::string spirv = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%int = OpTypeInt 32 1
|
|
%int_func = OpTypeFunction %int
|
|
%testfun = OpFunction %int None %int_func
|
|
%label_1 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(spirv);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"OpReturn can only be called from a function with void return type.\n"
|
|
" OpReturn"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, StructuredCFGBranchIntoSelectionBody) {
|
|
std::string spirv = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %func "func"
|
|
OpExecutionMode %func OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%functy = OpTypeFunction %void
|
|
%func = OpFunction %void None %functy
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpBranchConditional %true %then %merge
|
|
%merge = OpLabel
|
|
OpBranch %then
|
|
%then = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(spirv);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("branches to the selection construct, but not to the "
|
|
"selection header <ID> 6\n %7 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchDefaultOnly) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpFunction %1 None %4
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpSwitch %3 %7
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchSingleCase) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpFunction %1 None %4
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpSwitch %3 %7 0 %8
|
|
%8 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MultipleFallThroughBlocks) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranchConditional %6 %11 %12
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%12 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Case construct that targets 10[%10] has branches to multiple other "
|
|
"case construct targets 12[%12] and 11[%11]\n %10 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MultipleFallThroughToDefault) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %9
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%12 = OpLabel
|
|
OpBranch %10
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Multiple case constructs have branches to the case construct "
|
|
"that targets 10[%10]\n %10 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MultipleFallThroughToNonDefault) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %12
|
|
%11 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Multiple case constructs have branches to the case construct "
|
|
"that targets 12[%12]\n %12 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, DuplicateTargetWithFallThrough) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %10 1 %11
|
|
%10 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, WrongOperandList) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %9
|
|
%12 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 12[%12] has branches to the case "
|
|
"construct that targets 11[%11], but does not immediately "
|
|
"precede it in the OpSwitch's target list\n"
|
|
" OpSwitch %uint_0 %10 0 %11 1 %12"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, WrongOperandListThroughDefault) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %11
|
|
%12 = OpLabel
|
|
OpBranch %10
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 12[%12] has branches to the case "
|
|
"construct that targets 11[%11], but does not immediately "
|
|
"precede it in the OpSwitch's target list\n"
|
|
" OpSwitch %uint_0 %10 0 %11 1 %12"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, WrongOperandListNotLast) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12 2 %13
|
|
%10 = OpLabel
|
|
OpBranch %9
|
|
%12 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%13 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 12[%12] has branches to the case "
|
|
"construct that targets 11[%11], but does not immediately "
|
|
"precede it in the OpSwitch's target list\n"
|
|
" OpSwitch %uint_0 %10 0 %11 1 %12 2 %13"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, GoodUnreachableSwitch) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %2 "main"
|
|
OpExecutionMode %2 OriginUpperLeft
|
|
%3 = OpTypeVoid
|
|
%4 = OpTypeFunction %3
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpTypeInt 32 1
|
|
%9 = OpConstant %7 0
|
|
%2 = OpFunction %3 None %4
|
|
%10 = OpLabel
|
|
OpSelectionMerge %11 None
|
|
OpBranchConditional %6 %12 %13
|
|
%12 = OpLabel
|
|
OpReturn
|
|
%13 = OpLabel
|
|
OpReturn
|
|
%11 = OpLabel
|
|
OpSelectionMerge %14 None
|
|
OpSwitch %9 %14 0 %15
|
|
%15 = OpLabel
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_THAT(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, InvalidCaseExit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "func"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeInt 32 0
|
|
%4 = OpTypeFunction %2
|
|
%5 = OpConstant %3 0
|
|
%1 = OpFunction %2 None %4
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpSwitch %5 %7 0 %8 1 %9
|
|
%8 = OpLabel
|
|
OpBranch %10
|
|
%9 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpReturn
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 8[%8] has invalid branch "
|
|
"to block 10[%10] (not another case construct, "
|
|
"corresponding merge, outer loop merge or outer loop "
|
|
"continue)"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, GoodCaseExitsToOuterConstructs) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %func "func"
|
|
OpExecutionMode %func OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%int = OpTypeInt 32 0
|
|
%int0 = OpConstant %int 0
|
|
%func_ty = OpTypeFunction %void
|
|
%func = OpFunction %void None %func_ty
|
|
%1 = OpLabel
|
|
OpBranch %2
|
|
%2 = OpLabel
|
|
OpLoopMerge %7 %6 None
|
|
OpBranch %3
|
|
%3 = OpLabel
|
|
OpSelectionMerge %5 None
|
|
OpSwitch %int0 %5 0 %4
|
|
%4 = OpLabel
|
|
OpBranchConditional %true %6 %7
|
|
%5 = OpLabel
|
|
OpBranchConditional %true %6 %7
|
|
%6 = OpLabel
|
|
OpBranch %2
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchCaseOrderingBad1) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %default "default"
|
|
OpName %other "other"
|
|
%void = OpTypeVoid
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpSwitch %undef %default 0 %other 1 %default
|
|
%default = OpLabel
|
|
OpBranch %other
|
|
%other = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 1[%default] has branches to the "
|
|
"case construct that targets 2[%other], but does not "
|
|
"immediately precede it in the OpSwitch's target list"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchCaseOrderingBad2) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %default "default"
|
|
OpName %other "other"
|
|
%void = OpTypeVoid
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpSwitch %undef %default 0 %default 1 %other
|
|
%other = OpLabel
|
|
OpBranch %default
|
|
%default = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 2[%other] has branches to the "
|
|
"case construct that targets 1[%default], but does not "
|
|
"immediately precede it in the OpSwitch's target list"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchMultipleDefaultWithFallThroughGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %first "first"
|
|
OpName %second "second"
|
|
OpName %third "third"
|
|
%void = OpTypeVoid
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpSwitch %undef %second 0 %first 1 %second 2 %third
|
|
%first = OpLabel
|
|
OpBranch %second
|
|
%second = OpLabel
|
|
OpBranch %third
|
|
%third = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchMultipleDefaultWithFallThroughBad) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %first "first"
|
|
OpName %second "second"
|
|
OpName %third "third"
|
|
%void = OpTypeVoid
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpSwitch %undef %second 0 %second 1 %first 2 %third
|
|
%first = OpLabel
|
|
OpBranch %second
|
|
%second = OpLabel
|
|
OpBranch %third
|
|
%third = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, GoodUnreachableSelection) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%8 = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%false = OpConstantFalse %bool
|
|
%main = OpFunction %void None %8
|
|
%15 = OpLabel
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpLoopMerge %17 %18 None
|
|
OpBranch %19
|
|
%19 = OpLabel
|
|
OpBranchConditional %false %21 %17
|
|
%21 = OpLabel
|
|
OpSelectionMerge %22 None
|
|
OpBranchConditional %false %23 %22
|
|
%23 = OpLabel
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
OpLoopMerge %25 %26 None
|
|
OpBranch %27
|
|
%27 = OpLabel
|
|
OpReturn
|
|
%26 = OpLabel
|
|
OpBranchConditional %false %24 %25
|
|
%25 = OpLabel
|
|
OpSelectionMerge %28 None
|
|
OpBranchConditional %false %18 %28
|
|
%28 = OpLabel
|
|
OpBranch %22
|
|
%22 = OpLabel
|
|
OpBranch %18
|
|
%18 = OpLabel
|
|
OpBranch %16
|
|
%17 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ShaderWithPhiPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_bool = OpTypePointer Function %bool
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%7 = OpVariable %_ptr_Function_bool Function
|
|
%8 = OpVariable %_ptr_Function_bool Function
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_Function_bool %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Using pointers with OpPhi requires capability "
|
|
"VariablePointers or VariablePointersStorageBuffer"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, VarPtrShaderWithPhiPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability VariablePointers
|
|
OpExtension "SPV_KHR_variable_pointers"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_bool = OpTypePointer Function %bool
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%7 = OpVariable %_ptr_Function_bool Function
|
|
%8 = OpVariable %_ptr_Function_bool Function
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_Function_bool %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, VarPtrStgBufShaderWithPhiStgBufPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability VariablePointersStorageBuffer
|
|
OpExtension "SPV_KHR_variable_pointers"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%float = OpTypeFloat 32
|
|
%_ptr_StorageBuffer_float = OpTypePointer StorageBuffer %float
|
|
%7 = OpVariable %_ptr_StorageBuffer_float StorageBuffer
|
|
%8 = OpVariable %_ptr_StorageBuffer_float StorageBuffer
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_StorageBuffer_float %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, KernelWithPhiPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Kernel
|
|
OpCapability Addresses
|
|
OpMemoryModel Physical32 OpenCL
|
|
OpEntryPoint Kernel %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_bool = OpTypePointer Function %bool
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%7 = OpVariable %_ptr_Function_bool Function
|
|
%8 = OpVariable %_ptr_Function_bool Function
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_Function_bool %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchTargetMustBeLabel) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "foo"
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%7 = OpCopyObject %uint %uint_0
|
|
OpSelectionMerge %8 None
|
|
OpSwitch %uint_0 %8 0 %7
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("'Target Label' operands for OpSwitch must "
|
|
"be IDs of an OpLabel instruction"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, BranchTargetMustBeLabel) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "foo"
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%2 = OpLabel
|
|
%7 = OpCopyObject %uint %uint_0
|
|
OpBranch %7
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("'Target Label' operands for OpBranch must "
|
|
"be the ID of an OpLabel instruction"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ReachableOpUnreachableOneBlock) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ReachableOpUnreachableOpBranch) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %block
|
|
%block = OpLabel
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ReachableOpUnreachableOpBranchConditional) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %block None
|
|
OpBranchConditional %undef %block %unreachable
|
|
%block = OpLabel
|
|
OpReturn
|
|
%unreachable = OpLabel
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ReachableOpUnreachableOpSwitch) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %block1 None
|
|
OpSwitch %undef %block1 0 %unreachable 1 %block2
|
|
%block1 = OpLabel
|
|
OpReturn
|
|
%unreachable = OpLabel
|
|
OpUnreachable
|
|
%block2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ReachableOpUnreachableLoop) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %unreachable %loop None
|
|
OpBranchConditional %undef %loop %unreachable
|
|
%unreachable = OpLabel
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, UnreachableLoopBadBackedge) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %2 "main"
|
|
OpExecutionMode %2 OriginUpperLeft
|
|
%4 = OpTypeVoid
|
|
%5 = OpTypeFunction %4
|
|
%8 = OpTypeBool
|
|
%13 = OpConstantTrue %8
|
|
%2 = OpFunction %4 None %5
|
|
%14 = OpLabel
|
|
OpSelectionMerge %15 None
|
|
OpBranchConditional %13 %15 %15
|
|
%16 = OpLabel
|
|
OpLoopMerge %17 %18 None
|
|
OpBranch %17
|
|
%18 = OpLabel
|
|
OpBranch %17
|
|
%17 = OpLabel
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
// The back-edge in this test is bad, but the validator fails to identify it
|
|
// because it is in an entirely unreachable section of code. Prior to #2488
|
|
// this code failed an assert in Construct::blocks().
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, OneContinueTwoBackedges) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpLoopMerge %8 %9 None
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpLoopMerge %11 %9 None
|
|
OpBranchConditional %true %11 %9
|
|
%9 = OpLabel
|
|
OpBranchConditional %true %10 %7
|
|
%11 = OpLabel
|
|
OpBranch %8
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 9 branches to the loop construct, but not "
|
|
"to the loop header <ID> 7"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergeMergeBlockNotLabel) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%1 = OpLabel
|
|
OpLoopMerge %undef %2 None
|
|
OpBranchConditional %undef %2 %2
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Merge Block 1[%undef] must be an OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergeContinueTargetNotLabel) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%1 = OpLabel
|
|
OpLoopMerge %2 %undef None
|
|
OpBranchConditional %undef %2 %2
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Continue Target 1[%undef] must be an OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergeMergeBlockContinueTargetSameLabel) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%1 = OpLabel
|
|
OpLoopMerge %2 %2 None
|
|
OpBranchConditional %undef %2 %2
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Merge Block and Continue Target must be different ids"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergeUnrollAndDontUnroll) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%5 = OpLabel
|
|
OpBranch %1
|
|
%1 = OpLabel
|
|
OpLoopMerge %2 %3 Unroll|DontUnroll
|
|
OpBranchConditional %undef %2 %3
|
|
%3 = OpLabel
|
|
OpBranch %1
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Unroll and DontUnroll loop controls must not both be specified"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergePeelCountAndDontUnroll) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%5 = OpLabel
|
|
OpBranch %1
|
|
%1 = OpLabel
|
|
OpLoopMerge %2 %3 DontUnroll|PeelCount 1
|
|
OpBranchConditional %undef %2 %3
|
|
%3 = OpLabel
|
|
OpBranch %1
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text, SPV_ENV_UNIVERSAL_1_4);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA,
|
|
ValidateInstructions(SPV_ENV_UNIVERSAL_1_4));
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"PeelCount and DontUnroll loop controls must not both be specified"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergePartialCountAndDontUnroll) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%5 = OpLabel
|
|
OpBranch %1
|
|
%1 = OpLabel
|
|
OpLoopMerge %2 %3 DontUnroll|PartialCount 1
|
|
OpBranchConditional %undef %2 %3
|
|
%3 = OpLabel
|
|
OpBranch %1
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text, SPV_ENV_UNIVERSAL_1_4);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA,
|
|
ValidateInstructions(SPV_ENV_UNIVERSAL_1_4));
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("PartialCount and DontUnroll loop controls must not "
|
|
"both be specified"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergeIterationMultipleZero) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%5 = OpLabel
|
|
OpBranch %1
|
|
%1 = OpLabel
|
|
OpLoopMerge %2 %3 IterationMultiple 0
|
|
OpBranchConditional %undef %2 %3
|
|
%3 = OpLabel
|
|
OpBranch %1
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text, SPV_ENV_UNIVERSAL_1_4);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA,
|
|
ValidateInstructions(SPV_ENV_UNIVERSAL_1_4));
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"IterationMultiple loop control operand must be greater than zero"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergeIterationMultipleZeroMoreOperands) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %undef "undef"
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%func = OpFunction %void None %void_fn
|
|
%5 = OpLabel
|
|
OpBranch %1
|
|
%1 = OpLabel
|
|
OpLoopMerge %2 %3 MaxIterations|IterationMultiple 4 0
|
|
OpBranchConditional %undef %2 %3
|
|
%3 = OpLabel
|
|
OpBranch %1
|
|
%2 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text, SPV_ENV_UNIVERSAL_1_4);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA,
|
|
ValidateInstructions(SPV_ENV_UNIVERSAL_1_4));
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"IterationMultiple loop control operand must be greater than zero"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopMergeTargetsHeader) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%void_fn = OpTypeFunction %void
|
|
%fn = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %loop %continue None
|
|
OpBranch %body
|
|
%continue = OpLabel
|
|
OpBranch %loop
|
|
%body = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Merge Block may not be the block containing the OpLoopMerge"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, InvalidSelectionExit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeBool
|
|
%4 = OpConstantTrue %3
|
|
%5 = OpTypeFunction %2
|
|
%1 = OpFunction %2 None %5
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpBranchConditional %4 %7 %8
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpBranchConditional %4 %10 %9
|
|
%10 = OpLabel
|
|
OpBranch %7
|
|
%9 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 10[%10] exits the selection headed by <ID> "
|
|
"8[%8], but not via a structured exit"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, InvalidLoopExit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeBool
|
|
%4 = OpConstantTrue %3
|
|
%5 = OpTypeFunction %2
|
|
%1 = OpFunction %2 None %5
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpBranchConditional %4 %7 %8
|
|
%8 = OpLabel
|
|
OpLoopMerge %9 %10 None
|
|
OpBranchConditional %4 %9 %11
|
|
%11 = OpLabel
|
|
OpBranchConditional %4 %7 %10
|
|
%10 = OpLabel
|
|
OpBranch %8
|
|
%9 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 11[%11] exits the loop headed by <ID> "
|
|
"8[%8], but not via a structured exit"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, InvalidContinueExit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeBool
|
|
%4 = OpConstantTrue %3
|
|
%5 = OpTypeFunction %2
|
|
%1 = OpFunction %2 None %5
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpBranchConditional %4 %7 %8
|
|
%8 = OpLabel
|
|
OpLoopMerge %9 %10 None
|
|
OpBranchConditional %4 %9 %10
|
|
%10 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranchConditional %4 %8 %7
|
|
%9 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 11[%11] exits the continue headed by <ID> "
|
|
"10[%10], but not via a structured exit"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, InvalidSelectionExitBackedge) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeBool
|
|
%3 = OpUndef %2
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpFunction %1 None %4
|
|
%6 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpLoopMerge %8 %9 None
|
|
OpBranchConditional %3 %8 %9
|
|
%9 = OpLabel
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %3 %11 %12
|
|
%11 = OpLabel
|
|
OpBranch %13
|
|
%12 = OpLabel
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
OpBranch %7
|
|
%10 = OpLabel
|
|
OpUnreachable
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 13[%13] exits the selection headed by <ID> "
|
|
"9[%9], but not via a structured exit"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, BreakFromSwitch) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeBool
|
|
%3 = OpTypeInt 32 0
|
|
%4 = OpUndef %2
|
|
%5 = OpUndef %3
|
|
%6 = OpTypeFunction %1
|
|
%7 = OpFunction %1 None %6
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %5 %9 0 %10
|
|
%10 = OpLabel
|
|
OpSelectionMerge %11 None
|
|
OpBranchConditional %4 %11 %12
|
|
%12 = OpLabel
|
|
OpBranch %9
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, InvalidBreakFromSwitch) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeBool
|
|
%3 = OpTypeInt 32 0
|
|
%4 = OpUndef %2
|
|
%5 = OpUndef %3
|
|
%6 = OpTypeFunction %1
|
|
%7 = OpFunction %1 None %6
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %5 %9 0 %10
|
|
%10 = OpLabel
|
|
OpSelectionMerge %11 None
|
|
OpSwitch %5 %11 0 %12
|
|
%12 = OpLabel
|
|
OpBranch %9
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 12[%12] exits the selection headed by <ID> "
|
|
"10[%10], but not via a structured exit"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, BreakToOuterSwitch) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeBool
|
|
%3 = OpTypeInt 32 0
|
|
%4 = OpUndef %2
|
|
%5 = OpUndef %3
|
|
%6 = OpTypeFunction %1
|
|
%7 = OpFunction %1 None %6
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %5 %9 0 %10
|
|
%10 = OpLabel
|
|
OpSelectionMerge %11 None
|
|
OpSwitch %5 %11 0 %12
|
|
%12 = OpLabel
|
|
OpSelectionMerge %13 None
|
|
OpBranchConditional %4 %13 %14
|
|
%14 = OpLabel
|
|
OpBranch %9
|
|
%13 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 14[%14] exits the selection headed by <ID> "
|
|
"10[%10], but not via a structured exit"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, BreakToOuterLoop) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeBool
|
|
%3 = OpUndef %2
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpFunction %1 None %4
|
|
%6 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpLoopMerge %8 %9 None
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpLoopMerge %11 %12 None
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
OpSelectionMerge %14 None
|
|
OpBranchConditional %3 %14 %15
|
|
%15 = OpLabel
|
|
OpBranch %8
|
|
%14 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
OpBranchConditional %3 %10 %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpBranchConditional %3 %7 %8
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("block <ID> 15[%15] exits the loop headed by <ID> "
|
|
"10[%10], but not via a structured exit"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ContinueFromNestedSelection) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%4 = OpFunction %void None %void_fn
|
|
%5 = OpLabel
|
|
OpBranch %48
|
|
%48 = OpLabel
|
|
OpLoopMerge %47 %50 None
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpLoopMerge %12 %37 None
|
|
OpBranchConditional %undef %11 %12
|
|
%11 = OpLabel
|
|
OpSelectionMerge %31 None
|
|
OpBranchConditional %undef %30 %31
|
|
%30 = OpLabel
|
|
OpSelectionMerge %38 None
|
|
OpBranchConditional %undef %36 %38
|
|
%36 = OpLabel
|
|
OpBranch %38
|
|
%38 = OpLabel
|
|
OpBranch %37
|
|
%37 = OpLabel
|
|
OpBranch %10
|
|
%31 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
OpSelectionMerge %55 None
|
|
OpBranchConditional %undef %47 %55
|
|
%55 = OpLabel
|
|
OpBranch %47
|
|
%50 = OpLabel
|
|
OpBranch %48
|
|
%47 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeConditionalBranchBad) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranchConditional %undef %then %else
|
|
%then = OpLabel
|
|
OpReturn
|
|
%else = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(), HasSubstr("Selection must be structured"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeSwitchBad) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSwitch %undef %then 0 %else
|
|
%then = OpLabel
|
|
OpReturn
|
|
%else = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(), HasSubstr("Selection must be structured"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeSwitchBad2) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSwitch %undef %then 0 %then 1 %then 2 %else
|
|
%then = OpLabel
|
|
OpReturn
|
|
%else = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(), HasSubstr("Selection must be structured"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeOneBranchToMergeGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %b3 None
|
|
OpBranchConditional %undef %b1 %b2
|
|
%b1 = OpLabel
|
|
OpBranchConditional %undef %b2 %b3
|
|
%b2 = OpLabel
|
|
OpBranch %b3
|
|
%b3 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeSameTargetConditionalBranchGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranchConditional %undef %then %then
|
|
%then = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeOneTargetSwitchGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%int = OpTypeInt 32 0
|
|
%undef = OpUndef %int
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSwitch %undef %then 0 %then 1 %then
|
|
%then = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeOneUnseenTargetSwitchGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%int = OpTypeInt 32 0
|
|
%undef_int = OpUndef %int
|
|
%bool = OpTypeBool
|
|
%undef_bool = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpBranchConditional %undef_bool %merge %b1
|
|
%b1 = OpLabel
|
|
OpSwitch %undef_int %b2 0 %b2 1 %merge 2 %b2
|
|
%b2 = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeLoopBreakGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %continue None
|
|
OpBranch %body
|
|
%body = OpLabel
|
|
OpBranchConditional %undef %body2 %exit
|
|
%body2 = OpLabel
|
|
OpBranch %continue
|
|
%continue = OpLabel
|
|
OpBranch %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeLoopContinueGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %continue None
|
|
OpBranch %body
|
|
%body = OpLabel
|
|
OpBranchConditional %undef %body2 %continue
|
|
%body2 = OpLabel
|
|
OpBranch %continue
|
|
%continue = OpLabel
|
|
OpBranch %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeSwitchBreakGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%int = OpTypeInt 32 0
|
|
%int_0 = OpConstant %int 0
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpSwitch %int_0 %merge 1 %b1
|
|
%b1 = OpLabel
|
|
OpBranchConditional %undef %merge %b2
|
|
%b2 = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeSwitchFallThroughGood) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%int = OpTypeInt 32 0
|
|
%int_0 = OpConstant %int 0
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpSwitch %int_0 %b1 1 %b2
|
|
%b1 = OpLabel
|
|
OpBranchConditional %undef %b3 %b2
|
|
%b2 = OpLabel
|
|
OpBranch %merge
|
|
%b3 = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeInALoopBad) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %continue None
|
|
OpBranch %body
|
|
%body = OpLabel
|
|
OpBranchConditional %undef %b1 %b2
|
|
%b1 = OpLabel
|
|
OpBranch %exit
|
|
%b2 = OpLabel
|
|
OpBranch %continue
|
|
%continue = OpLabel
|
|
OpBranch %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(), HasSubstr("Selection must be structured"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MissingMergeCrissCrossBad) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpBranchConditional %undef %b1 %b2
|
|
%b1 = OpLabel
|
|
OpBranchConditional %undef %b3 %b4
|
|
%b2 = OpLabel
|
|
OpBranchConditional %undef %b3 %b4
|
|
%b3 = OpLabel
|
|
OpBranch %merge
|
|
%b4 = OpLabel
|
|
OpBranch %merge
|
|
%merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(), HasSubstr("Selection must be structured"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ContinueCannotBeSelectionMergeTarget) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %loop "loop"
|
|
OpName %continue "continue"
|
|
OpName %body "body"
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %continue None
|
|
OpBranch %body
|
|
%body = OpLabel
|
|
OpSelectionMerge %continue None
|
|
OpBranchConditional %undef %exit %continue
|
|
%continue = OpLabel
|
|
OpBranch %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Header block 3[%body] is contained in the loop construct headed by "
|
|
"1[%loop], but its merge block 2[%continue] is not"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ContinueCannotBeLoopMergeTarget) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
OpName %loop "loop"
|
|
OpName %continue "continue"
|
|
OpName %inner "inner"
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%undef = OpUndef %bool
|
|
%func = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %continue None
|
|
OpBranchConditional %undef %exit %inner
|
|
%inner = OpLabel
|
|
OpLoopMerge %continue %inner None
|
|
OpBranchConditional %undef %inner %continue
|
|
%continue = OpLabel
|
|
OpBranch %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Header block 3[%inner] is contained in the loop construct headed by "
|
|
"1[%loop], but its merge block 2[%continue] is not"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ExitFromConstructWhoseHeaderIsAMerge) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%2 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%4 = OpUndef %int
|
|
%bool = OpTypeBool
|
|
%6 = OpUndef %bool
|
|
%7 = OpFunction %void None %2
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %4 %10 0 %11
|
|
%10 = OpLabel
|
|
OpBranch %9
|
|
%11 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
OpLoopMerge %13 %14 None
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
OpSelectionMerge %16 None
|
|
OpSwitch %4 %17 1 %18 2 %19
|
|
%17 = OpLabel
|
|
OpBranch %16
|
|
%18 = OpLabel
|
|
OpBranch %14
|
|
%19 = OpLabel
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
OpBranchConditional %6 %12 %13
|
|
%13 = OpLabel
|
|
OpSelectionMerge %20 None
|
|
OpBranchConditional %6 %21 %20
|
|
%21 = OpLabel
|
|
OpBranch %9
|
|
%20 = OpLabel
|
|
OpBranch %10
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ExitFromConstructWhoseHeaderIsAMerge2) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %2 "main"
|
|
OpExecutionMode %2 OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%6 = OpUndef %int
|
|
%bool = OpTypeBool
|
|
%8 = OpUndef %bool
|
|
%2 = OpFunction %void None %4
|
|
%9 = OpLabel
|
|
OpSelectionMerge %10 None
|
|
OpSwitch %6 %11 0 %12
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%12 = OpLabel
|
|
OpBranch %13
|
|
%13 = OpLabel
|
|
OpLoopMerge %14 %15 None
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpSelectionMerge %17 None
|
|
OpSwitch %6 %18 1 %19 2 %20
|
|
%18 = OpLabel
|
|
OpBranch %17
|
|
%19 = OpLabel
|
|
OpBranch %15
|
|
%20 = OpLabel
|
|
OpBranch %17
|
|
%17 = OpLabel
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
OpBranchConditional %8 %13 %14
|
|
%14 = OpLabel
|
|
OpSelectionMerge %21 None
|
|
OpBranchConditional %8 %22 %21
|
|
%22 = OpLabel
|
|
OpSelectionMerge %23 None
|
|
OpBranchConditional %8 %24 %23
|
|
%24 = OpLabel
|
|
OpBranch %10
|
|
%23 = OpLabel
|
|
OpBranch %21
|
|
%21 = OpLabel
|
|
OpBranch %11
|
|
%10 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiResultInvalidSampler) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%f32 = OpTypeFloat 32
|
|
%sampler = OpTypeSampler
|
|
%ptr_uc_sampler = OpTypePointer UniformConstant %sampler
|
|
%sampler_var = OpVariable %ptr_uc_sampler UniformConstant
|
|
%undef_bool = OpUndef %bool
|
|
%undef_sampler = OpUndef %sampler
|
|
%void_fn = OpTypeFunction %void
|
|
%fn = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
%ld_sampler = OpLoad %sampler %sampler_var
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
%phi = OpPhi %sampler %undef_sampler %entry %ld_sampler %loop
|
|
OpLoopMerge %exit %loop None
|
|
OpBranchConditional %undef_bool %exit %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Result type cannot be OpTypeSampler"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiResultInvalidImage) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%f32 = OpTypeFloat 32
|
|
%image = OpTypeImage %f32 2D 0 0 0 1 Rgba32f
|
|
%ptr_uc_image = OpTypePointer UniformConstant %image
|
|
%image_var = OpVariable %ptr_uc_image UniformConstant
|
|
%undef_bool = OpUndef %bool
|
|
%undef_image = OpUndef %image
|
|
%void_fn = OpTypeFunction %void
|
|
%fn = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
%ld_image = OpLoad %image %image_var
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
%phi = OpPhi %image %undef_image %entry %ld_image %loop
|
|
OpLoopMerge %exit %loop None
|
|
OpBranchConditional %undef_bool %exit %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Result type cannot be OpTypeImage"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiResultInvalidSampledImage) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%f32 = OpTypeFloat 32
|
|
%sampler = OpTypeSampler
|
|
%ptr_uc_sampler = OpTypePointer UniformConstant %sampler
|
|
%sampler_var = OpVariable %ptr_uc_sampler UniformConstant
|
|
%image = OpTypeImage %f32 2D 0 0 0 1 Rgba32f
|
|
%ptr_uc_image = OpTypePointer UniformConstant %image
|
|
%image_var = OpVariable %ptr_uc_image UniformConstant
|
|
%sampled_image = OpTypeSampledImage %image
|
|
%undef_bool = OpUndef %bool
|
|
%undef_sampled_image = OpUndef %sampled_image
|
|
%void_fn = OpTypeFunction %void
|
|
%fn = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
%ld_image = OpLoad %image %image_var
|
|
%ld_sampler = OpLoad %sampler %sampler_var
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
%phi = OpPhi %sampled_image %undef_sampled_image %entry %sample %loop
|
|
%sample = OpSampledImage %sampled_image %ld_image %ld_sampler
|
|
OpLoopMerge %exit %loop None
|
|
OpBranchConditional %undef_bool %exit %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Result type cannot be OpTypeSampledImage"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiResultValidPreLegalizationSampler) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%f32 = OpTypeFloat 32
|
|
%sampler = OpTypeSampler
|
|
%ptr_uc_sampler = OpTypePointer UniformConstant %sampler
|
|
%sampler_var = OpVariable %ptr_uc_sampler UniformConstant
|
|
%undef_bool = OpUndef %bool
|
|
%undef_sampler = OpUndef %sampler
|
|
%void_fn = OpTypeFunction %void
|
|
%fn = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
%ld_sampler = OpLoad %sampler %sampler_var
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
%phi = OpPhi %sampler %undef_sampler %entry %ld_sampler %loop
|
|
OpLoopMerge %exit %loop None
|
|
OpBranchConditional %undef_bool %exit %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
options_->before_hlsl_legalization = true;
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiResultValidPreLegalizationImage) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%f32 = OpTypeFloat 32
|
|
%image = OpTypeImage %f32 2D 0 0 0 1 Rgba32f
|
|
%ptr_uc_image = OpTypePointer UniformConstant %image
|
|
%image_var = OpVariable %ptr_uc_image UniformConstant
|
|
%undef_bool = OpUndef %bool
|
|
%undef_image = OpUndef %image
|
|
%void_fn = OpTypeFunction %void
|
|
%fn = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
%ld_image = OpLoad %image %image_var
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
%phi = OpPhi %image %undef_image %entry %ld_image %loop
|
|
OpLoopMerge %exit %loop None
|
|
OpBranchConditional %undef_bool %exit %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
options_->before_hlsl_legalization = true;
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiResultValidPreLegalizationSampledImage) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%f32 = OpTypeFloat 32
|
|
%sampler = OpTypeSampler
|
|
%ptr_uc_sampler = OpTypePointer UniformConstant %sampler
|
|
%sampler_var = OpVariable %ptr_uc_sampler UniformConstant
|
|
%image = OpTypeImage %f32 2D 0 0 0 1 Rgba32f
|
|
%ptr_uc_image = OpTypePointer UniformConstant %image
|
|
%image_var = OpVariable %ptr_uc_image UniformConstant
|
|
%sampled_image = OpTypeSampledImage %image
|
|
%undef_bool = OpUndef %bool
|
|
%undef_sampled_image = OpUndef %sampled_image
|
|
%void_fn = OpTypeFunction %void
|
|
%fn = OpFunction %void None %void_fn
|
|
%entry = OpLabel
|
|
%ld_image = OpLoad %image %image_var
|
|
%ld_sampler = OpLoad %sampler %sampler_var
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
%phi = OpPhi %sampled_image %undef_sampled_image %entry %sample %loop
|
|
%sample = OpSampledImage %sampled_image %ld_image %ld_sampler
|
|
OpLoopMerge %exit %loop None
|
|
OpBranchConditional %undef_bool %exit %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
options_->before_hlsl_legalization = true;
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, UnreachableIsStaticallyReachable) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeFunction %1
|
|
%3 = OpFunction %1 None %2
|
|
%4 = OpLabel
|
|
OpBranch %5
|
|
%5 = OpLabel
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateAndRetrieveValidationState());
|
|
|
|
auto f = vstate_->function(3);
|
|
auto entry = f->GetBlock(4).first;
|
|
ASSERT_TRUE(entry->reachable());
|
|
auto end = f->GetBlock(5).first;
|
|
ASSERT_TRUE(end->reachable());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, BlockOrderDoesNotAffectReachability) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeFunction %1
|
|
%3 = OpTypeBool
|
|
%4 = OpUndef %3
|
|
%5 = OpFunction %1 None %2
|
|
%6 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpSelectionMerge %8 None
|
|
OpBranchConditional %4 %9 %10
|
|
%8 = OpLabel
|
|
OpReturn
|
|
%9 = OpLabel
|
|
OpBranch %8
|
|
%10 = OpLabel
|
|
OpBranch %8
|
|
%11 = OpLabel
|
|
OpUnreachable
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateAndRetrieveValidationState());
|
|
|
|
auto f = vstate_->function(5);
|
|
auto b6 = f->GetBlock(6).first;
|
|
auto b7 = f->GetBlock(7).first;
|
|
auto b8 = f->GetBlock(8).first;
|
|
auto b9 = f->GetBlock(9).first;
|
|
auto b10 = f->GetBlock(10).first;
|
|
auto b11 = f->GetBlock(11).first;
|
|
|
|
ASSERT_TRUE(b6->reachable());
|
|
ASSERT_TRUE(b7->reachable());
|
|
ASSERT_TRUE(b8->reachable());
|
|
ASSERT_TRUE(b9->reachable());
|
|
ASSERT_TRUE(b10->reachable());
|
|
ASSERT_FALSE(b11->reachable());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiInstructionWithDuplicateIncomingEdges) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 320
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%6 = OpTypeBool
|
|
%7 = OpConstantTrue %6
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %7 %8 %9
|
|
%8 = OpLabel
|
|
OpBranch %10
|
|
%9 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%11 = OpPhi %6 %7 %8 %7 %8
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("OpPhi references incoming basic block <id> "));
|
|
EXPECT_THAT(getDiagnosticString(), HasSubstr("multiple times."));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, PhiOnVoid) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %4 "main"
|
|
OpExecutionMode %4 OriginUpperLeft
|
|
OpSource ESSL 320
|
|
OpName %4 "main"
|
|
OpName %6 "foo("
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeFunction %2
|
|
%4 = OpFunction %2 None %3
|
|
%5 = OpLabel
|
|
%8 = OpFunctionCall %2 %6
|
|
OpBranch %20
|
|
%20 = OpLabel
|
|
%21 = OpPhi %2 %8 %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%6 = OpFunction %2 None %3
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("OpPhi must not have void result type"));
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace val
|
|
} // namespace spvtools
|