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Unified Diff: test/cctest/compiler/instruction-selector-tester.h

Issue 426233002: Land the Fan (disabled) (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Review feedback, rebase and "git cl format" Created 6 years, 5 months ago
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Index: test/cctest/compiler/instruction-selector-tester.h
diff --git a/test/cctest/compiler/instruction-selector-tester.h b/test/cctest/compiler/instruction-selector-tester.h
new file mode 100644
index 0000000000000000000000000000000000000000..2a84b5703afa9e5492b67dbd5ec45bc2690e192e
--- /dev/null
+++ b/test/cctest/compiler/instruction-selector-tester.h
@@ -0,0 +1,119 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_
+#define V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_
+
+#include <deque>
+#include <set>
+
+#include "src/compiler/instruction-selector.h"
+#include "src/compiler/raw-machine-assembler.h"
+#include "src/ostreams.h"
+#include "test/cctest/cctest.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+typedef std::set<int> VirtualRegisterSet;
+
+enum InstructionSelectorTesterMode { kTargetMode, kInternalMode };
+
+class InstructionSelectorTester : public HandleAndZoneScope,
+ public RawMachineAssembler {
+ public:
+ enum Mode { kTargetMode, kInternalMode };
+
+ static const int kParameterCount = 3;
+ static MachineRepresentation* BuildParameterArray(Zone* zone) {
+ MachineRepresentation* array =
+ zone->NewArray<MachineRepresentation>(kParameterCount);
+ for (int i = 0; i < kParameterCount; ++i) {
+ array[i] = kMachineWord32;
+ }
+ return array;
+ }
+
+ explicit InstructionSelectorTester(Mode mode = kTargetMode)
+ : RawMachineAssembler(
+ new (main_zone()) Graph(main_zone()), new (main_zone())
+ MachineCallDescriptorBuilder(kMachineWord32, kParameterCount,
+ BuildParameterArray(main_zone())),
+ MachineOperatorBuilder::pointer_rep()),
+ mode_(mode) {}
+
+ void SelectInstructions() {
+ OFStream out(stdout);
+ Schedule* schedule = Export();
+ CHECK_NE(0, graph()->NodeCount());
+ CompilationInfo info(main_isolate(), main_zone());
+ Linkage linkage(&info, call_descriptor());
+ InstructionSequence sequence(&linkage, graph(), schedule);
+ SourcePositionTable source_positions(graph());
+ InstructionSelector selector(&sequence, &source_positions);
+ selector.SelectInstructions();
+ out << "--- Code sequence after instruction selection --- " << endl
+ << sequence;
+ for (InstructionSequence::const_iterator i = sequence.begin();
+ i != sequence.end(); ++i) {
+ Instruction* instr = *i;
+ if (instr->opcode() < 0) continue;
+ if (mode_ == kTargetMode) {
+ switch (ArchOpcodeField::decode(instr->opcode())) {
+#define CASE(Name) \
+ case k##Name: \
+ break;
+ TARGET_ARCH_OPCODE_LIST(CASE)
+#undef CASE
+ default:
+ continue;
+ }
+ }
+ code.push_back(instr);
+ }
+ for (int vreg = 0; vreg < sequence.VirtualRegisterCount(); ++vreg) {
+ if (sequence.IsDouble(vreg)) {
+ CHECK(!sequence.IsReference(vreg));
+ doubles.insert(vreg);
+ }
+ if (sequence.IsReference(vreg)) {
+ CHECK(!sequence.IsDouble(vreg));
+ references.insert(vreg);
+ }
+ }
+ immediates.assign(sequence.immediates().begin(),
+ sequence.immediates().end());
+ }
+
+ int32_t ToInt32(const InstructionOperand* operand) const {
+ size_t i = operand->index();
+ CHECK(i < immediates.size());
+ CHECK_EQ(InstructionOperand::IMMEDIATE, operand->kind());
+ return immediates[i].ToInt32();
+ }
+
+ std::deque<Instruction*> code;
+ VirtualRegisterSet doubles;
+ VirtualRegisterSet references;
+ std::deque<Constant> immediates;
+
+ private:
+ Mode mode_;
+};
+
+
+static inline void CheckSameVreg(InstructionOperand* exp,
+ InstructionOperand* val) {
+ CHECK_EQ(InstructionOperand::UNALLOCATED, exp->kind());
+ CHECK_EQ(InstructionOperand::UNALLOCATED, val->kind());
+ CHECK_EQ(UnallocatedOperand::cast(exp)->virtual_register(),
+ UnallocatedOperand::cast(val)->virtual_register());
+}
+
+} // namespace compiler
+} // namespace internal
+} // namespace v8
+
+#endif // V8_CCTEST_COMPILER_INSTRUCTION_SELECTOR_TEST_H_
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