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136 lines
4.1 KiB
136 lines
4.1 KiB
/*
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* Copyright 2015, The Android Open Source Project
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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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*/
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#include "Log.h"
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#include "RSTransforms.h"
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#include <cstdlib>
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#include <llvm/IR/Instructions.h>
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#include <llvm/IR/Metadata.h>
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#include <llvm/IR/Module.h>
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#include <llvm/IR/Function.h>
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#include <llvm/Pass.h>
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namespace { // anonymous namespace
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// Create a Module pass that screens all the global functions in the module and
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// check if any non-threadable function is callable. If so, we mark the
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// Module as non-threadable by adding a metadata flag '#rs_is_threadable'
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class RSIsThreadablePass : public llvm::ModulePass {
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private:
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static char ID;
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std::vector<std::string> nonThreadableFns = {
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"_Z22rsgBindProgramFragment19rs_program_fragment",
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"_Z19rsgBindProgramStore16rs_program_store",
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"_Z20rsgBindProgramVertex17rs_program_vertex",
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"_Z20rsgBindProgramRaster17rs_program_raster",
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"_Z14rsgBindSampler19rs_program_fragmentj10rs_sampler",
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"_Z14rsgBindTexture19rs_program_fragmentj13rs_allocation",
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"_Z15rsgBindConstant19rs_program_fragmentj13rs_allocation",
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"_Z15rsgBindConstant17rs_program_vertexj13rs_allocation",
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"_Z36rsgProgramVertexLoadProjectionMatrixPK12rs_matrix4x4",
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"_Z31rsgProgramVertexLoadModelMatrixPK12rs_matrix4x4",
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"_Z33rsgProgramVertexLoadTextureMatrixPK12rs_matrix4x4",
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"_Z35rsgProgramVertexGetProjectionMatrixP12rs_matrix4x4",
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"_Z31rsgProgramFragmentConstantColor19rs_program_fragmentffff",
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"_Z11rsgGetWidthv",
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"_Z12rsgGetHeightv",
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"_Z11rsgDrawRectfffff",
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"_Z11rsgDrawQuadffffffffffff",
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"_Z20rsgDrawQuadTexCoordsffffffffffffffffffff",
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"_Z24rsgDrawSpriteScreenspacefffff",
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"_Z11rsgDrawMesh7rs_mesh",
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"_Z11rsgDrawMesh7rs_meshj",
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"_Z11rsgDrawMesh7rs_meshjjj",
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"_Z25rsgMeshComputeBoundingBox7rs_meshPfS0_S0_S0_S0_S0_",
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"_Z11rsgDrawPath7rs_path",
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"_Z13rsgClearColorffff",
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"_Z13rsgClearDepthf",
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"_Z11rsgDrawTextPKcii",
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"_Z11rsgDrawText13rs_allocationii",
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"_Z14rsgMeasureTextPKcPiS1_S1_S1_",
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"_Z14rsgMeasureText13rs_allocationPiS0_S0_S0_",
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"_Z11rsgBindFont7rs_font",
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"_Z12rsgFontColorffff",
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"_Z18rsgBindColorTarget13rs_allocationj",
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"_Z18rsgBindDepthTarget13rs_allocation",
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"_Z19rsgClearColorTargetj",
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"_Z19rsgClearDepthTargetv",
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"_Z24rsgClearAllRenderTargetsv",
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"_Z7rsGetDtv",
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"_Z5colorffff",
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"_Z9rsgFinishv",
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};
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bool isPresent(std::vector<std::string> &list, const std::string &name) {
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auto lower = std::lower_bound(list.begin(),
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list.end(),
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name);
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if (lower != list.end() && name.compare(*lower) == 0)
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return true;
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return false;
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}
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public:
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RSIsThreadablePass()
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: ModulePass (ID) {
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std::sort(nonThreadableFns.begin(), nonThreadableFns.end());
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}
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virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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bool runOnModule(llvm::Module &M) override {
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bool threadable = true;
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auto &FunctionList(M.getFunctionList());
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for (auto &F: FunctionList) {
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if (isPresent(nonThreadableFns, F.getName().str())) {
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threadable = false;
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break;
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}
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}
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llvm::LLVMContext &context = M.getContext();
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llvm::MDString *val =
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llvm::MDString::get(context, (threadable) ? "yes" : "no");
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llvm::NamedMDNode *node =
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M.getOrInsertNamedMetadata("#rs_is_threadable");
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node->addOperand(llvm::MDNode::get(context, val));
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return false;
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}
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};
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}
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char RSIsThreadablePass::ID = 0;
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namespace bcc {
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llvm::ModulePass *
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createRSIsThreadablePass () {
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return new RSIsThreadablePass();
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}
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}
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