132 lines
4.2 KiB
C++
132 lines
4.2 KiB
C++
/*
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* Copyright (C) 2014 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 "nodes.h"
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#include "parallel_move_resolver.h"
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#include "utils/arena_allocator.h"
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#include "gtest/gtest.h"
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namespace art {
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class TestParallelMoveResolver : public ParallelMoveResolver {
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public:
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explicit TestParallelMoveResolver(ArenaAllocator* allocator) : ParallelMoveResolver(allocator) {}
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virtual void EmitMove(size_t index) {
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MoveOperands* move = moves_.Get(index);
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if (!message_.str().empty()) {
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message_ << " ";
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}
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message_ << "("
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<< move->GetSource().reg().RegId()
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<< " -> "
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<< move->GetDestination().reg().RegId()
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<< ")";
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}
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virtual void EmitSwap(size_t index) {
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MoveOperands* move = moves_.Get(index);
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if (!message_.str().empty()) {
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message_ << " ";
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}
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message_ << "("
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<< move->GetSource().reg().RegId()
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<< " <-> "
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<< move->GetDestination().reg().RegId()
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<< ")";
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}
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virtual void SpillScratch(int reg) {}
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virtual void RestoreScratch(int reg) {}
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std::string GetMessage() const {
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return message_.str();
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}
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private:
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std::ostringstream message_;
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DISALLOW_COPY_AND_ASSIGN(TestParallelMoveResolver);
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};
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static HParallelMove* BuildParallelMove(ArenaAllocator* allocator,
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const size_t operands[][2],
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size_t number_of_moves) {
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HParallelMove* moves = new (allocator) HParallelMove(allocator);
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for (size_t i = 0; i < number_of_moves; ++i) {
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moves->AddMove(new (allocator) MoveOperands(
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Location::RegisterLocation(ManagedRegister(operands[i][0])),
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Location::RegisterLocation(ManagedRegister(operands[i][1]))));
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}
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return moves;
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}
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TEST(ParallelMoveTest, Dependency) {
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ArenaPool pool;
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ArenaAllocator allocator(&pool);
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{
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TestParallelMoveResolver resolver(&allocator);
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static constexpr size_t moves[][2] = {{0, 1}, {1, 2}};
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resolver.EmitNativeCode(BuildParallelMove(&allocator, moves, arraysize(moves)));
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ASSERT_STREQ("(1 -> 2) (0 -> 1)", resolver.GetMessage().c_str());
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}
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{
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TestParallelMoveResolver resolver(&allocator);
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static constexpr size_t moves[][2] = {{0, 1}, {1, 2}, {2, 3}, {1, 4}};
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resolver.EmitNativeCode(BuildParallelMove(&allocator, moves, arraysize(moves)));
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ASSERT_STREQ("(2 -> 3) (1 -> 2) (1 -> 4) (0 -> 1)", resolver.GetMessage().c_str());
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}
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}
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TEST(ParallelMoveTest, Swap) {
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ArenaPool pool;
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ArenaAllocator allocator(&pool);
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{
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TestParallelMoveResolver resolver(&allocator);
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static constexpr size_t moves[][2] = {{0, 1}, {1, 0}};
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resolver.EmitNativeCode(BuildParallelMove(&allocator, moves, arraysize(moves)));
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ASSERT_STREQ("(1 <-> 0)", resolver.GetMessage().c_str());
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}
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{
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TestParallelMoveResolver resolver(&allocator);
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static constexpr size_t moves[][2] = {{0, 1}, {1, 2}, {1, 0}};
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resolver.EmitNativeCode(BuildParallelMove(&allocator, moves, arraysize(moves)));
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ASSERT_STREQ("(1 -> 2) (1 <-> 0)", resolver.GetMessage().c_str());
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}
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{
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TestParallelMoveResolver resolver(&allocator);
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static constexpr size_t moves[][2] = {{0, 1}, {1, 2}, {2, 3}, {3, 4}, {4, 1}};
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resolver.EmitNativeCode(BuildParallelMove(&allocator, moves, arraysize(moves)));
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ASSERT_STREQ("(4 <-> 1) (3 <-> 4) (2 <-> 3) (0 -> 1)", resolver.GetMessage().c_str());
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}
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{
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TestParallelMoveResolver resolver(&allocator);
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static constexpr size_t moves[][2] = {{0, 1}, {1, 2}, {2, 3}, {3, 4}, {4, 1}, {5, 4}};
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resolver.EmitNativeCode(BuildParallelMove(&allocator, moves, arraysize(moves)));
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ASSERT_STREQ("(4 <-> 1) (3 <-> 4) (2 <-> 3) (0 -> 1) (5 -> 4)", resolver.GetMessage().c_str());
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}
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}
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} // namespace art
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