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170 lines
6.2 KiB
170 lines
6.2 KiB
// Copyright 2016, VIXL authors
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of ARM Limited nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/// This file is a template read by tools/generate_tests.py, it isn't valid C++
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/// as it is. Variables written as ${substitute_me} are replaced by the script.
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/// Comments starting with three forward slashes such as this one are also
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/// removed.
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${do_not_edit_comment}
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#include <iostream>
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#include <map>
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#include "test-runner.h"
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#include "test-utils.h"
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#include "test-utils-aarch32.h"
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#include "aarch32/assembler-aarch32.h"
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#include "aarch32/disasm-aarch32.h"
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#include "aarch32/macro-assembler-aarch32.h"
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#define BUF_SIZE (4096)
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namespace vixl {
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namespace aarch32 {
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// List of instruction mnemonics.
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#define FOREACH_INSTRUCTION(M) \
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${instruction_list_declaration}
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// The following definitions are defined again in each generated test, therefore
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// we need to place them in an anomymous namespace. It expresses that they are
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// local to this file only, and the compiler is not allowed to share these types
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// across test files during template instantiation. Specifically, `Operands` has
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// various layouts across generated tests so it absolutely cannot be shared.
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#ifdef ${isa_guard}
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namespace {
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// Values to be passed to the assembler to produce the instruction under test.
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struct Operands {
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${operand_list_declaration}
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};
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// This structure contains all data needed to test one specific
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// instruction.
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struct TestData {
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// The `operands` field represents what to pass to the assembler to
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// produce the instruction.
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Operands operands;
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// Description of the operands, used for error reporting.
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const char* operands_description;
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// Unique identifier, used for generating traces.
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const char* identifier;
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};
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// Each element of this array produce one instruction encoding.
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const TestData kTests[] = {${test_case_definitions}};
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typedef void (MacroAssembler::*Fn)(${macroassembler_method_args});
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// Use a customised disassembler to label test cases.
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typedef std::map<uint32_t, int> TestCaseSymbolMap;
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class TestDisassembler : public PrintDisassembler {
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public:
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TestDisassembler(std::ostream& os, // NOLINT(runtime/references)
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const TestCaseSymbolMap& symbols,
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const char* mnemonic)
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: PrintDisassembler(os), symbols_(symbols), mnemonic_(mnemonic) {}
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virtual void PrintCodeAddress(uint32_t pc) VIXL_OVERRIDE {
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// Label test cases.
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TestCaseSymbolMap::const_iterator symbol = symbols_.find(pc);
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if (symbol != symbols_.end()) {
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int n = symbol->second;
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os().os() << "// " << mnemonic_ << "(" <<
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kTests[n].operands_description << ")" << std::endl;
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}
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// Print the code address as normal.
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PrintDisassembler::PrintCodeAddress(pc);
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}
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private:
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const TestCaseSymbolMap& symbols_;
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const char* mnemonic_;
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};
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void TestHelper(Fn instruction, const char* mnemonic) {
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MacroAssembler masm(BUF_SIZE);
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${macroassembler_set_isa}
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TestCaseSymbolMap symbols;
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for (unsigned i = 0; i < ARRAY_SIZE(kTests); i++) {
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if (Test::disassemble()) {
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// TODO: This will fail if the MacroAssembler generates no code. We can
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// fix this with multimap but then we must take care to print the labels
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// in the correct order. (Insertion order is only preserved for C++11.)
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symbols.insert(std::pair<uint32_t, int>(masm.GetCursorOffset(), i));
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}
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// Values to pass to the macro-assembler.
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UseScratchRegisterScope scratch_registers(&masm);
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${code_instantiate_operands}
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(masm.*instruction)(${code_parameter_list});
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// For now, these test don't currently produce (or check) any trace; we just
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// check that the MacroAssembler didn't crash.
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// TODO: We could generate disassembly as a trace here, to check for sane
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// output, though the trace would need to be manually checked.
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}
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masm.FinalizeCode();
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if (Test::disassemble()) {
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// Disassemble to stdout if given --disassemble on the command line.
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TestDisassembler dis(std::cout, symbols, mnemonic);
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if (masm.IsUsingT32()) {
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dis.DisassembleT32Buffer(masm.GetBuffer()->GetStartAddress<uint16_t*>(),
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masm.GetCursorOffset());
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} else {
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dis.DisassembleA32Buffer(masm.GetBuffer()->GetStartAddress<uint32_t*>(),
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masm.GetCursorOffset());
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}
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}
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}
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// Instantiate tests for each instruction in the list.
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#define TEST(mnemonic) \
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void Test_##mnemonic() { \
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TestHelper(&MacroAssembler::mnemonic, #mnemonic); \
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} \
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Test test_##mnemonic("AARCH32_${test_name}_" #mnemonic, \
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&Test_##mnemonic);
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FOREACH_INSTRUCTION(TEST)
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#undef TEST
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} // namespace
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#endif
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} // namespace aarch32
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} // namespace vixl
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