77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/*
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* Copyright (C) 2022 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 <gtest/gtest.h>
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#include "code_info_table_deduper.h"
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#include "arch/instruction_set.h"
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#include "base/malloc_arena_pool.h"
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#include "base/scoped_arena_allocator.h"
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#include "base/scoped_arena_containers.h"
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#include "optimizing/stack_map_stream.h"
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namespace art {
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namespace linker {
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TEST(StackMapTest, TestDedupeBitTables) {
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constexpr static uint32_t kPcAlign = GetInstructionSetInstructionAlignment(kRuntimeISA);
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using Kind = DexRegisterLocation::Kind;
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MallocArenaPool pool;
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ArenaStack arena_stack(&pool);
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ScopedArenaAllocator allocator(&arena_stack);
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StackMapStream stream(&allocator, kRuntimeISA);
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stream.BeginMethod(32, 0, 0, 2);
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stream.BeginStackMapEntry(0, 64 * kPcAlign);
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stream.AddDexRegisterEntry(Kind::kInStack, 0);
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stream.AddDexRegisterEntry(Kind::kConstant, -2);
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stream.EndStackMapEntry();
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stream.EndMethod(64 * kPcAlign);
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ScopedArenaVector<uint8_t> memory = stream.Encode();
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std::vector<uint8_t> out;
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CodeInfoTableDeduper deduper(&out);
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size_t deduped1 = deduper.Dedupe(memory.data());
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size_t deduped2 = deduper.Dedupe(memory.data());
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for (size_t deduped : { deduped1, deduped2 }) {
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CodeInfo code_info(out.data() + deduped);
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ASSERT_EQ(1u, code_info.GetNumberOfStackMaps());
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StackMap stack_map = code_info.GetStackMapAt(0);
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ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0)));
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ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64 * kPcAlign)));
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ASSERT_EQ(0u, stack_map.GetDexPc());
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ASSERT_EQ(64u * kPcAlign, stack_map.GetNativePcOffset(kRuntimeISA));
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ASSERT_TRUE(stack_map.HasDexRegisterMap());
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DexRegisterMap dex_register_map = code_info.GetDexRegisterMapOf(stack_map);
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ASSERT_EQ(Kind::kInStack, dex_register_map[0].GetKind());
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ASSERT_EQ(Kind::kConstant, dex_register_map[1].GetKind());
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ASSERT_EQ(0, dex_register_map[0].GetStackOffsetInBytes());
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ASSERT_EQ(-2, dex_register_map[1].GetConstant());
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}
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ASSERT_GT(memory.size() * 2, out.size());
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}
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} // namespace linker
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} // namespace art
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