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9d7cd9b864
PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
// Copyright 2024 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/compiler/turboshaft/assembler.h"
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#include "src/compiler/turboshaft/copying-phase.h"
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#include "src/compiler/turboshaft/operations.h"
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#include "src/compiler/turboshaft/store-store-elimination-reducer-inl.h"
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#include "test/unittests/compiler/turboshaft/reducer-test.h"
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namespace v8::internal::compiler::turboshaft {
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#include "src/compiler/turboshaft/define-assembler-macros.inc"
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class StoreStoreEliminationReducerTest : public ReducerTest {};
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TEST_F(StoreStoreEliminationReducerTest, MergeObjectInitialzationStore) {
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auto test = CreateFromGraph(1, [](auto& Asm) {
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OpIndex param0 = Asm.GetParameter(0);
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OpIndex heap_const0 = __ HeapConstant(Asm.factory().undefined_value());
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OpIndex heap_const1 = __ HeapConstant(Asm.factory().null_value());
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__ Store(param0, heap_const0, StoreOp::Kind::TaggedBase(),
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MemoryRepresentation::TaggedPointer(),
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WriteBarrierKind::kNoWriteBarrier, 0, true);
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OpIndex store0 = __ output_graph().LastOperation();
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DCHECK(__ output_graph().Get(store0).template Is<StoreOp>());
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Asm.Capture(store0, "store0");
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__ Store(param0, heap_const1, StoreOp::Kind::TaggedBase(),
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MemoryRepresentation::AnyTagged(),
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WriteBarrierKind::kNoWriteBarrier, 4, true);
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OpIndex store1 = __ output_graph().LastOperation();
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DCHECK(__ output_graph().Get(store1).template Is<StoreOp>());
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Asm.Capture(store1, "store1");
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__ Return(param0);
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});
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test.Run<StoreStoreEliminationReducer>();
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#ifdef V8_COMPRESS_POINTERS
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const auto& store0_out = test.GetCapture("store0");
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const StoreOp* store64 = store0_out.GetFirst<StoreOp>();
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ASSERT_TRUE(store64 != nullptr);
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ASSERT_EQ(store64->kind, StoreOp::Kind::TaggedBase());
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ASSERT_EQ(store64->stored_rep, MemoryRepresentation::Uint64());
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ASSERT_EQ(store64->write_barrier, WriteBarrierKind::kNoWriteBarrier);
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const auto& store1_out = test.GetCapture("store1");
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ASSERT_TRUE(store1_out.IsEmpty());
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#endif // V8_COMPRESS_POINTERS
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}
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#include "src/compiler/turboshaft/undef-assembler-macros.inc"
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} // namespace v8::internal::compiler::turboshaft
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