| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "stack_map.h" |
| |
| #include "art_method.h" |
| #include "base/arena_bit_vector.h" |
| #include "stack_map_stream.h" |
| |
| #include "gtest/gtest.h" |
| |
| namespace art { |
| |
| // Check that the stack mask of given stack map is identical |
| // to the given bit vector. Returns true if they are same. |
| static bool CheckStackMask( |
| const CodeInfo& code_info, |
| const CodeInfoEncoding& encoding, |
| const StackMap& stack_map, |
| const BitVector& bit_vector) { |
| BitMemoryRegion stack_mask = code_info.GetStackMaskOf(encoding, stack_map); |
| if (bit_vector.GetNumberOfBits() > encoding.stack_mask.encoding.BitSize()) { |
| return false; |
| } |
| for (size_t i = 0; i < encoding.stack_mask.encoding.BitSize(); ++i) { |
| if (stack_mask.LoadBit(i) != bit_vector.IsBitSet(i)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| using Kind = DexRegisterLocation::Kind; |
| |
| TEST(StackMapTest, Test1) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&arena, 0, false); |
| size_t number_of_dex_registers = 2; |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Short location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo code_info(region); |
| CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| ASSERT_EQ(1u, code_info.GetNumberOfStackMaps(encoding)); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(encoding); |
| ASSERT_EQ(2u, number_of_catalog_entries); |
| DexRegisterLocationCatalog location_catalog = code_info.GetDexRegisterLocationCatalog(encoding); |
| // The Dex register location catalog contains: |
| // - one 1-byte short Dex register location, and |
| // - one 5-byte large Dex register location. |
| size_t expected_location_catalog_size = 1u + 5u; |
| ASSERT_EQ(expected_location_catalog_size, location_catalog.Size()); |
| |
| StackMap stack_map = code_info.GetStackMapAt(0, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding))); |
| ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, encoding, stack_map, sp_mask)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters(number_of_dex_registers)); |
| // The Dex register map contains: |
| // - one 1-byte live bit mask, and |
| // - one 1-byte set of location catalog entry indices composed of two 2-bit values. |
| size_t expected_dex_register_map_size = 1u + 1u; |
| ASSERT_EQ(expected_dex_register_map_size, dex_register_map.Size()); |
| |
| ASSERT_EQ(Kind::kInStack, dex_register_map.GetLocationKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstant, dex_register_map.GetLocationKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInStack, dex_register_map.GetLocationInternalKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstantLargeValue, dex_register_map.GetLocationInternalKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(0, dex_register_map.GetStackOffsetInBytes( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(-2, dex_register_map.GetConstant(1, number_of_dex_registers, code_info, encoding)); |
| |
| size_t index0 = dex_register_map.GetLocationCatalogEntryIndex( |
| 0, number_of_dex_registers, number_of_catalog_entries); |
| size_t index1 = dex_register_map.GetLocationCatalogEntryIndex( |
| 1, number_of_dex_registers, number_of_catalog_entries); |
| ASSERT_EQ(0u, index0); |
| ASSERT_EQ(1u, index1); |
| DexRegisterLocation location0 = location_catalog.GetDexRegisterLocation(index0); |
| DexRegisterLocation location1 = location_catalog.GetDexRegisterLocation(index1); |
| ASSERT_EQ(Kind::kInStack, location0.GetKind()); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(Kind::kInStack, location0.GetInternalKind()); |
| ASSERT_EQ(Kind::kConstantLargeValue, location1.GetInternalKind()); |
| ASSERT_EQ(0, location0.GetValue()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| } |
| |
| TEST(StackMapTest, Test2) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| ArtMethod art_method; |
| |
| ArenaBitVector sp_mask1(&arena, 0, true); |
| sp_mask1.SetBit(2); |
| sp_mask1.SetBit(4); |
| size_t number_of_dex_registers = 2; |
| size_t number_of_dex_registers_in_inline_info = 0; |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask1, number_of_dex_registers, 2); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.BeginInlineInfoEntry(&art_method, 3, number_of_dex_registers_in_inline_info); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 2, number_of_dex_registers_in_inline_info); |
| stream.EndInlineInfoEntry(); |
| stream.EndStackMapEntry(); |
| |
| ArenaBitVector sp_mask2(&arena, 0, true); |
| sp_mask2.SetBit(3); |
| sp_mask2.SetBit(8); |
| stream.BeginStackMapEntry(1, 128, 0xFF, &sp_mask2, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 18); // Short location. |
| stream.AddDexRegisterEntry(Kind::kInFpuRegister, 3); // Short location. |
| stream.EndStackMapEntry(); |
| |
| ArenaBitVector sp_mask3(&arena, 0, true); |
| sp_mask3.SetBit(1); |
| sp_mask3.SetBit(5); |
| stream.BeginStackMapEntry(2, 192, 0xAB, &sp_mask3, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 6); // Short location. |
| stream.AddDexRegisterEntry(Kind::kInRegisterHigh, 8); // Short location. |
| stream.EndStackMapEntry(); |
| |
| ArenaBitVector sp_mask4(&arena, 0, true); |
| sp_mask4.SetBit(6); |
| sp_mask4.SetBit(7); |
| stream.BeginStackMapEntry(3, 256, 0xCD, &sp_mask4, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInFpuRegister, 3); // Short location, same in stack map 2. |
| stream.AddDexRegisterEntry(Kind::kInFpuRegisterHigh, 1); // Short location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo code_info(region); |
| CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| ASSERT_EQ(4u, code_info.GetNumberOfStackMaps(encoding)); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(encoding); |
| ASSERT_EQ(7u, number_of_catalog_entries); |
| DexRegisterLocationCatalog location_catalog = code_info.GetDexRegisterLocationCatalog(encoding); |
| // The Dex register location catalog contains: |
| // - six 1-byte short Dex register locations, and |
| // - one 5-byte large Dex register location. |
| size_t expected_location_catalog_size = 6u * 1u + 5u; |
| ASSERT_EQ(expected_location_catalog_size, location_catalog.Size()); |
| |
| // First stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(0, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding))); |
| ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, encoding, stack_map, sp_mask1)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters(number_of_dex_registers)); |
| // The Dex register map contains: |
| // - one 1-byte live bit mask, and |
| // - one 1-byte set of location catalog entry indices composed of two 2-bit values. |
| size_t expected_dex_register_map_size = 1u + 1u; |
| ASSERT_EQ(expected_dex_register_map_size, dex_register_map.Size()); |
| |
| ASSERT_EQ(Kind::kInStack, dex_register_map.GetLocationKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstant, dex_register_map.GetLocationKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInStack, dex_register_map.GetLocationInternalKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstantLargeValue, dex_register_map.GetLocationInternalKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(0, dex_register_map.GetStackOffsetInBytes( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(-2, dex_register_map.GetConstant(1, number_of_dex_registers, code_info, encoding)); |
| |
| size_t index0 = dex_register_map.GetLocationCatalogEntryIndex( |
| 0, number_of_dex_registers, number_of_catalog_entries); |
| size_t index1 = dex_register_map.GetLocationCatalogEntryIndex( |
| 1, number_of_dex_registers, number_of_catalog_entries); |
| ASSERT_EQ(0u, index0); |
| ASSERT_EQ(1u, index1); |
| DexRegisterLocation location0 = location_catalog.GetDexRegisterLocation(index0); |
| DexRegisterLocation location1 = location_catalog.GetDexRegisterLocation(index1); |
| ASSERT_EQ(Kind::kInStack, location0.GetKind()); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(Kind::kInStack, location0.GetInternalKind()); |
| ASSERT_EQ(Kind::kConstantLargeValue, location1.GetInternalKind()); |
| ASSERT_EQ(0, location0.GetValue()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| ASSERT_TRUE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| InlineInfo inline_info = code_info.GetInlineInfoOf(stack_map, encoding); |
| ASSERT_EQ(2u, inline_info.GetDepth(encoding.inline_info.encoding)); |
| ASSERT_EQ(3u, inline_info.GetDexPcAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_EQ(2u, inline_info.GetDexPcAtDepth(encoding.inline_info.encoding, 1)); |
| ASSERT_TRUE(inline_info.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_TRUE(inline_info.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 1)); |
| } |
| |
| // Second stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(1, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(1u, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(128u, encoding))); |
| ASSERT_EQ(1u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(128u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0xFFu, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, encoding, stack_map, sp_mask2)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters(number_of_dex_registers)); |
| // The Dex register map contains: |
| // - one 1-byte live bit mask, and |
| // - one 1-byte set of location catalog entry indices composed of two 2-bit values. |
| size_t expected_dex_register_map_size = 1u + 1u; |
| ASSERT_EQ(expected_dex_register_map_size, dex_register_map.Size()); |
| |
| ASSERT_EQ(Kind::kInRegister, dex_register_map.GetLocationKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInFpuRegister, dex_register_map.GetLocationKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInRegister, dex_register_map.GetLocationInternalKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInFpuRegister, dex_register_map.GetLocationInternalKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(18, dex_register_map.GetMachineRegister( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(3, dex_register_map.GetMachineRegister( |
| 1, number_of_dex_registers, code_info, encoding)); |
| |
| size_t index0 = dex_register_map.GetLocationCatalogEntryIndex( |
| 0, number_of_dex_registers, number_of_catalog_entries); |
| size_t index1 = dex_register_map.GetLocationCatalogEntryIndex( |
| 1, number_of_dex_registers, number_of_catalog_entries); |
| ASSERT_EQ(2u, index0); |
| ASSERT_EQ(3u, index1); |
| DexRegisterLocation location0 = location_catalog.GetDexRegisterLocation(index0); |
| DexRegisterLocation location1 = location_catalog.GetDexRegisterLocation(index1); |
| ASSERT_EQ(Kind::kInRegister, location0.GetKind()); |
| ASSERT_EQ(Kind::kInFpuRegister, location1.GetKind()); |
| ASSERT_EQ(Kind::kInRegister, location0.GetInternalKind()); |
| ASSERT_EQ(Kind::kInFpuRegister, location1.GetInternalKind()); |
| ASSERT_EQ(18, location0.GetValue()); |
| ASSERT_EQ(3, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| } |
| |
| // Third stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(2, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(2u, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(192u, encoding))); |
| ASSERT_EQ(2u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(192u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0xABu, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, encoding, stack_map, sp_mask3)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters(number_of_dex_registers)); |
| // The Dex register map contains: |
| // - one 1-byte live bit mask, and |
| // - one 1-byte set of location catalog entry indices composed of two 2-bit values. |
| size_t expected_dex_register_map_size = 1u + 1u; |
| ASSERT_EQ(expected_dex_register_map_size, dex_register_map.Size()); |
| |
| ASSERT_EQ(Kind::kInRegister, dex_register_map.GetLocationKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInRegisterHigh, dex_register_map.GetLocationKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInRegister, dex_register_map.GetLocationInternalKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInRegisterHigh, dex_register_map.GetLocationInternalKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(6, dex_register_map.GetMachineRegister( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(8, dex_register_map.GetMachineRegister( |
| 1, number_of_dex_registers, code_info, encoding)); |
| |
| size_t index0 = dex_register_map.GetLocationCatalogEntryIndex( |
| 0, number_of_dex_registers, number_of_catalog_entries); |
| size_t index1 = dex_register_map.GetLocationCatalogEntryIndex( |
| 1, number_of_dex_registers, number_of_catalog_entries); |
| ASSERT_EQ(4u, index0); |
| ASSERT_EQ(5u, index1); |
| DexRegisterLocation location0 = location_catalog.GetDexRegisterLocation(index0); |
| DexRegisterLocation location1 = location_catalog.GetDexRegisterLocation(index1); |
| ASSERT_EQ(Kind::kInRegister, location0.GetKind()); |
| ASSERT_EQ(Kind::kInRegisterHigh, location1.GetKind()); |
| ASSERT_EQ(Kind::kInRegister, location0.GetInternalKind()); |
| ASSERT_EQ(Kind::kInRegisterHigh, location1.GetInternalKind()); |
| ASSERT_EQ(6, location0.GetValue()); |
| ASSERT_EQ(8, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| } |
| |
| // Fourth stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(3, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(3u, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(256u, encoding))); |
| ASSERT_EQ(3u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(256u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0xCDu, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, encoding, stack_map, sp_mask4)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_dex_registers); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, dex_register_map.GetNumberOfLiveDexRegisters(number_of_dex_registers)); |
| // The Dex register map contains: |
| // - one 1-byte live bit mask, and |
| // - one 1-byte set of location catalog entry indices composed of two 2-bit values. |
| size_t expected_dex_register_map_size = 1u + 1u; |
| ASSERT_EQ(expected_dex_register_map_size, dex_register_map.Size()); |
| |
| ASSERT_EQ(Kind::kInFpuRegister, dex_register_map.GetLocationKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInFpuRegisterHigh, dex_register_map.GetLocationKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInFpuRegister, dex_register_map.GetLocationInternalKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInFpuRegisterHigh, dex_register_map.GetLocationInternalKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(3, dex_register_map.GetMachineRegister( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(1, dex_register_map.GetMachineRegister( |
| 1, number_of_dex_registers, code_info, encoding)); |
| |
| size_t index0 = dex_register_map.GetLocationCatalogEntryIndex( |
| 0, number_of_dex_registers, number_of_catalog_entries); |
| size_t index1 = dex_register_map.GetLocationCatalogEntryIndex( |
| 1, number_of_dex_registers, number_of_catalog_entries); |
| ASSERT_EQ(3u, index0); // Shared with second stack map. |
| ASSERT_EQ(6u, index1); |
| DexRegisterLocation location0 = location_catalog.GetDexRegisterLocation(index0); |
| DexRegisterLocation location1 = location_catalog.GetDexRegisterLocation(index1); |
| ASSERT_EQ(Kind::kInFpuRegister, location0.GetKind()); |
| ASSERT_EQ(Kind::kInFpuRegisterHigh, location1.GetKind()); |
| ASSERT_EQ(Kind::kInFpuRegister, location0.GetInternalKind()); |
| ASSERT_EQ(Kind::kInFpuRegisterHigh, location1.GetInternalKind()); |
| ASSERT_EQ(3, location0.GetValue()); |
| ASSERT_EQ(1, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| } |
| } |
| |
| TEST(StackMapTest, TestDeduplicateInlineInfoDexRegisterMap) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| ArtMethod art_method; |
| |
| ArenaBitVector sp_mask1(&arena, 0, true); |
| sp_mask1.SetBit(2); |
| sp_mask1.SetBit(4); |
| const size_t number_of_dex_registers = 2; |
| const size_t number_of_dex_registers_in_inline_info = 2; |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask1, number_of_dex_registers, 1); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.BeginInlineInfoEntry(&art_method, 3, number_of_dex_registers_in_inline_info); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndInlineInfoEntry(); |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo code_info(region); |
| CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| ASSERT_EQ(1u, code_info.GetNumberOfStackMaps(encoding)); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(encoding); |
| ASSERT_EQ(2u, number_of_catalog_entries); |
| DexRegisterLocationCatalog location_catalog = code_info.GetDexRegisterLocationCatalog(encoding); |
| // The Dex register location catalog contains: |
| // - one 1-byte short Dex register locations, and |
| // - one 5-byte large Dex register location. |
| const size_t expected_location_catalog_size = 1u + 5u; |
| ASSERT_EQ(expected_location_catalog_size, location_catalog.Size()); |
| |
| // First stack map. |
| { |
| StackMap stack_map = code_info.GetStackMapAt(0, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding))); |
| ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_TRUE(CheckStackMask(code_info, encoding, stack_map, sp_mask1)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| DexRegisterMap map(code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_dex_registers)); |
| ASSERT_TRUE(map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(map.IsDexRegisterLive(1)); |
| ASSERT_EQ(2u, map.GetNumberOfLiveDexRegisters(number_of_dex_registers)); |
| // The Dex register map contains: |
| // - one 1-byte live bit mask, and |
| // - one 1-byte set of location catalog entry indices composed of two 2-bit values. |
| size_t expected_map_size = 1u + 1u; |
| ASSERT_EQ(expected_map_size, map.Size()); |
| |
| ASSERT_EQ(Kind::kInStack, map.GetLocationKind(0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstant, |
| map.GetLocationKind(1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kInStack, |
| map.GetLocationInternalKind(0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstantLargeValue, |
| map.GetLocationInternalKind(1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(0, map.GetStackOffsetInBytes(0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(-2, map.GetConstant(1, number_of_dex_registers, code_info, encoding)); |
| |
| const size_t index0 = |
| map.GetLocationCatalogEntryIndex(0, number_of_dex_registers, number_of_catalog_entries); |
| const size_t index1 = |
| map.GetLocationCatalogEntryIndex(1, number_of_dex_registers, number_of_catalog_entries); |
| ASSERT_EQ(0u, index0); |
| ASSERT_EQ(1u, index1); |
| DexRegisterLocation location0 = location_catalog.GetDexRegisterLocation(index0); |
| DexRegisterLocation location1 = location_catalog.GetDexRegisterLocation(index1); |
| ASSERT_EQ(Kind::kInStack, location0.GetKind()); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(Kind::kInStack, location0.GetInternalKind()); |
| ASSERT_EQ(Kind::kConstantLargeValue, location1.GetInternalKind()); |
| ASSERT_EQ(0, location0.GetValue()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| // Test that the inline info dex register map deduplicated to the same offset as the stack map |
| // one. |
| ASSERT_TRUE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| InlineInfo inline_info = code_info.GetInlineInfoOf(stack_map, encoding); |
| EXPECT_EQ(inline_info.GetDexRegisterMapOffsetAtDepth(encoding.inline_info.encoding, 0), |
| stack_map.GetDexRegisterMapOffset(encoding.stack_map.encoding)); |
| } |
| } |
| |
| TEST(StackMapTest, TestNonLiveDexRegisters) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&arena, 0, false); |
| uint32_t number_of_dex_registers = 2; |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kNone, 0); // No location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo code_info(region); |
| CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| ASSERT_EQ(1u, code_info.GetNumberOfStackMaps(encoding)); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(encoding); |
| ASSERT_EQ(1u, number_of_catalog_entries); |
| DexRegisterLocationCatalog location_catalog = code_info.GetDexRegisterLocationCatalog(encoding); |
| // The Dex register location catalog contains: |
| // - one 5-byte large Dex register location. |
| size_t expected_location_catalog_size = 5u; |
| ASSERT_EQ(expected_location_catalog_size, location_catalog.Size()); |
| |
| StackMap stack_map = code_info.GetStackMapAt(0, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding))); |
| ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| DexRegisterMap dex_register_map = |
| code_info.GetDexRegisterMapOf(stack_map, encoding, number_of_dex_registers); |
| ASSERT_FALSE(dex_register_map.IsDexRegisterLive(0)); |
| ASSERT_TRUE(dex_register_map.IsDexRegisterLive(1)); |
| ASSERT_EQ(1u, dex_register_map.GetNumberOfLiveDexRegisters(number_of_dex_registers)); |
| // The Dex register map contains: |
| // - one 1-byte live bit mask. |
| // No space is allocated for the sole location catalog entry index, as it is useless. |
| size_t expected_dex_register_map_size = 1u + 0u; |
| ASSERT_EQ(expected_dex_register_map_size, dex_register_map.Size()); |
| |
| ASSERT_EQ(Kind::kNone, dex_register_map.GetLocationKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstant, dex_register_map.GetLocationKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kNone, dex_register_map.GetLocationInternalKind( |
| 0, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(Kind::kConstantLargeValue, dex_register_map.GetLocationInternalKind( |
| 1, number_of_dex_registers, code_info, encoding)); |
| ASSERT_EQ(-2, dex_register_map.GetConstant(1, number_of_dex_registers, code_info, encoding)); |
| |
| size_t index0 = dex_register_map.GetLocationCatalogEntryIndex( |
| 0, number_of_dex_registers, number_of_catalog_entries); |
| size_t index1 = dex_register_map.GetLocationCatalogEntryIndex( |
| 1, number_of_dex_registers, number_of_catalog_entries); |
| ASSERT_EQ(DexRegisterLocationCatalog::kNoLocationEntryIndex, index0); |
| ASSERT_EQ(0u, index1); |
| DexRegisterLocation location0 = location_catalog.GetDexRegisterLocation(index0); |
| DexRegisterLocation location1 = location_catalog.GetDexRegisterLocation(index1); |
| ASSERT_EQ(Kind::kNone, location0.GetKind()); |
| ASSERT_EQ(Kind::kConstant, location1.GetKind()); |
| ASSERT_EQ(Kind::kNone, location0.GetInternalKind()); |
| ASSERT_EQ(Kind::kConstantLargeValue, location1.GetInternalKind()); |
| ASSERT_EQ(0, location0.GetValue()); |
| ASSERT_EQ(-2, location1.GetValue()); |
| |
| ASSERT_FALSE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| } |
| |
| // Generate a stack map whose dex register offset is |
| // StackMap::kNoDexRegisterMapSmallEncoding, and ensure we do |
| // not treat it as kNoDexRegisterMap. |
| TEST(StackMapTest, DexRegisterMapOffsetOverflow) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&arena, 0, false); |
| uint32_t number_of_dex_registers = 1024; |
| // Create the first stack map (and its Dex register map). |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| uint32_t number_of_dex_live_registers_in_dex_register_map_0 = number_of_dex_registers - 8; |
| for (uint32_t i = 0; i < number_of_dex_live_registers_in_dex_register_map_0; ++i) { |
| // Use two different Dex register locations to populate this map, |
| // as using a single value (in the whole CodeInfo object) would |
| // make this Dex register mapping data empty (see |
| // art::DexRegisterMap::SingleEntrySizeInBits). |
| stream.AddDexRegisterEntry(Kind::kConstant, i % 2); // Short location. |
| } |
| stream.EndStackMapEntry(); |
| // Create the second stack map (and its Dex register map). |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| for (uint32_t i = 0; i < number_of_dex_registers; ++i) { |
| stream.AddDexRegisterEntry(Kind::kConstant, 0); // Short location. |
| } |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo code_info(region); |
| CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| // The location catalog contains two entries (DexRegisterLocation(kConstant, 0) |
| // and DexRegisterLocation(kConstant, 1)), therefore the location catalog index |
| // has a size of 1 bit. |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(encoding); |
| ASSERT_EQ(2u, number_of_catalog_entries); |
| ASSERT_EQ(1u, DexRegisterMap::SingleEntrySizeInBits(number_of_catalog_entries)); |
| |
| // The first Dex register map contains: |
| // - a live register bit mask for 1024 registers (that is, 128 bytes of |
| // data); and |
| // - Dex register mapping information for 1016 1-bit Dex (live) register |
| // locations (that is, 127 bytes of data). |
| // Hence it has a size of 255 bytes, and therefore... |
| ASSERT_EQ(128u, DexRegisterMap::GetLiveBitMaskSize(number_of_dex_registers)); |
| StackMap stack_map0 = code_info.GetStackMapAt(0, encoding); |
| DexRegisterMap dex_register_map0 = |
| code_info.GetDexRegisterMapOf(stack_map0, encoding, number_of_dex_registers); |
| ASSERT_EQ(127u, dex_register_map0.GetLocationMappingDataSize(number_of_dex_registers, |
| number_of_catalog_entries)); |
| ASSERT_EQ(255u, dex_register_map0.Size()); |
| |
| StackMap stack_map1 = code_info.GetStackMapAt(1, encoding); |
| ASSERT_TRUE(stack_map1.HasDexRegisterMap(encoding.stack_map.encoding)); |
| // ...the offset of the second Dex register map (relative to the |
| // beginning of the Dex register maps region) is 255 (i.e., |
| // kNoDexRegisterMapSmallEncoding). |
| ASSERT_NE(stack_map1.GetDexRegisterMapOffset(encoding.stack_map.encoding), |
| StackMap::kNoDexRegisterMap); |
| ASSERT_EQ(stack_map1.GetDexRegisterMapOffset(encoding.stack_map.encoding), 0xFFu); |
| } |
| |
| TEST(StackMapTest, TestShareDexRegisterMap) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&arena, 0, false); |
| uint32_t number_of_dex_registers = 2; |
| // First stack map. |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| // Second stack map, which should share the same dex register map. |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 0); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| // Third stack map (doesn't share the dex register map). |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 2); // Short location. |
| stream.AddDexRegisterEntry(Kind::kConstant, -2); // Large location. |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo ci(region); |
| CodeInfoEncoding encoding = ci.ExtractEncoding(); |
| |
| // Verify first stack map. |
| StackMap sm0 = ci.GetStackMapAt(0, encoding); |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm0, encoding, number_of_dex_registers); |
| ASSERT_EQ(0, dex_registers0.GetMachineRegister(0, number_of_dex_registers, ci, encoding)); |
| ASSERT_EQ(-2, dex_registers0.GetConstant(1, number_of_dex_registers, ci, encoding)); |
| |
| // Verify second stack map. |
| StackMap sm1 = ci.GetStackMapAt(1, encoding); |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapOf(sm1, encoding, number_of_dex_registers); |
| ASSERT_EQ(0, dex_registers1.GetMachineRegister(0, number_of_dex_registers, ci, encoding)); |
| ASSERT_EQ(-2, dex_registers1.GetConstant(1, number_of_dex_registers, ci, encoding)); |
| |
| // Verify third stack map. |
| StackMap sm2 = ci.GetStackMapAt(2, encoding); |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapOf(sm2, encoding, number_of_dex_registers); |
| ASSERT_EQ(2, dex_registers2.GetMachineRegister(0, number_of_dex_registers, ci, encoding)); |
| ASSERT_EQ(-2, dex_registers2.GetConstant(1, number_of_dex_registers, ci, encoding)); |
| |
| // Verify dex register map offsets. |
| ASSERT_EQ(sm0.GetDexRegisterMapOffset(encoding.stack_map.encoding), |
| sm1.GetDexRegisterMapOffset(encoding.stack_map.encoding)); |
| ASSERT_NE(sm0.GetDexRegisterMapOffset(encoding.stack_map.encoding), |
| sm2.GetDexRegisterMapOffset(encoding.stack_map.encoding)); |
| ASSERT_NE(sm1.GetDexRegisterMapOffset(encoding.stack_map.encoding), |
| sm2.GetDexRegisterMapOffset(encoding.stack_map.encoding)); |
| } |
| |
| TEST(StackMapTest, TestNoDexRegisterMap) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&arena, 0, false); |
| uint32_t number_of_dex_registers = 0; |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask, number_of_dex_registers, 0); |
| stream.EndStackMapEntry(); |
| |
| number_of_dex_registers = 1; |
| stream.BeginStackMapEntry(1, 68, 0x4, &sp_mask, number_of_dex_registers, 0); |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo code_info(region); |
| CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| ASSERT_EQ(2u, code_info.GetNumberOfStackMaps(encoding)); |
| |
| uint32_t number_of_catalog_entries = code_info.GetNumberOfLocationCatalogEntries(encoding); |
| ASSERT_EQ(0u, number_of_catalog_entries); |
| DexRegisterLocationCatalog location_catalog = code_info.GetDexRegisterLocationCatalog(encoding); |
| ASSERT_EQ(0u, location_catalog.Size()); |
| |
| StackMap stack_map = code_info.GetStackMapAt(0, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding))); |
| ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0x3u, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_FALSE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| ASSERT_FALSE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| |
| stack_map = code_info.GetStackMapAt(1, encoding); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(1, encoding))); |
| ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(68, encoding))); |
| ASSERT_EQ(1u, stack_map.GetDexPc(encoding.stack_map.encoding)); |
| ASSERT_EQ(68u, stack_map.GetNativePcOffset(encoding.stack_map.encoding, kRuntimeISA)); |
| ASSERT_EQ(0x4u, code_info.GetRegisterMaskOf(encoding, stack_map)); |
| |
| ASSERT_FALSE(stack_map.HasDexRegisterMap(encoding.stack_map.encoding)); |
| ASSERT_FALSE(stack_map.HasInlineInfo(encoding.stack_map.encoding)); |
| } |
| |
| TEST(StackMapTest, InlineTest) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| ArtMethod art_method; |
| |
| ArenaBitVector sp_mask1(&arena, 0, true); |
| sp_mask1.SetBit(2); |
| sp_mask1.SetBit(4); |
| |
| // First stack map. |
| stream.BeginStackMapEntry(0, 64, 0x3, &sp_mask1, 2, 2); |
| stream.AddDexRegisterEntry(Kind::kInStack, 0); |
| stream.AddDexRegisterEntry(Kind::kConstant, 4); |
| |
| stream.BeginInlineInfoEntry(&art_method, 2, 1); |
| stream.AddDexRegisterEntry(Kind::kInStack, 8); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 3, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 16); |
| stream.AddDexRegisterEntry(Kind::kConstant, 20); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 15); |
| stream.EndInlineInfoEntry(); |
| |
| stream.EndStackMapEntry(); |
| |
| // Second stack map. |
| stream.BeginStackMapEntry(2, 22, 0x3, &sp_mask1, 2, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 56); |
| stream.AddDexRegisterEntry(Kind::kConstant, 0); |
| |
| stream.BeginInlineInfoEntry(&art_method, 2, 1); |
| stream.AddDexRegisterEntry(Kind::kInStack, 12); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 3, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 80); |
| stream.AddDexRegisterEntry(Kind::kConstant, 10); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 5); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 5, 0); |
| stream.EndInlineInfoEntry(); |
| |
| stream.EndStackMapEntry(); |
| |
| // Third stack map. |
| stream.BeginStackMapEntry(4, 56, 0x3, &sp_mask1, 2, 0); |
| stream.AddDexRegisterEntry(Kind::kNone, 0); |
| stream.AddDexRegisterEntry(Kind::kConstant, 4); |
| stream.EndStackMapEntry(); |
| |
| // Fourth stack map. |
| stream.BeginStackMapEntry(6, 78, 0x3, &sp_mask1, 2, 3); |
| stream.AddDexRegisterEntry(Kind::kInStack, 56); |
| stream.AddDexRegisterEntry(Kind::kConstant, 0); |
| |
| stream.BeginInlineInfoEntry(&art_method, 2, 0); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 5, 1); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 2); |
| stream.EndInlineInfoEntry(); |
| stream.BeginInlineInfoEntry(&art_method, 10, 2); |
| stream.AddDexRegisterEntry(Kind::kNone, 0); |
| stream.AddDexRegisterEntry(Kind::kInRegister, 3); |
| stream.EndInlineInfoEntry(); |
| |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo ci(region); |
| CodeInfoEncoding encoding = ci.ExtractEncoding(); |
| |
| { |
| // Verify first stack map. |
| StackMap sm0 = ci.GetStackMapAt(0, encoding); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm0, encoding, 2); |
| ASSERT_EQ(0, dex_registers0.GetStackOffsetInBytes(0, 2, ci, encoding)); |
| ASSERT_EQ(4, dex_registers0.GetConstant(1, 2, ci, encoding)); |
| |
| InlineInfo if0 = ci.GetInlineInfoOf(sm0, encoding); |
| ASSERT_EQ(2u, if0.GetDepth(encoding.inline_info.encoding)); |
| ASSERT_EQ(2u, if0.GetDexPcAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_TRUE(if0.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_EQ(3u, if0.GetDexPcAtDepth(encoding.inline_info.encoding, 1)); |
| ASSERT_TRUE(if0.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 1)); |
| |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapAtDepth(0, if0, encoding, 1); |
| ASSERT_EQ(8, dex_registers1.GetStackOffsetInBytes(0, 1, ci, encoding)); |
| |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapAtDepth(1, if0, encoding, 3); |
| ASSERT_EQ(16, dex_registers2.GetStackOffsetInBytes(0, 3, ci, encoding)); |
| ASSERT_EQ(20, dex_registers2.GetConstant(1, 3, ci, encoding)); |
| ASSERT_EQ(15, dex_registers2.GetMachineRegister(2, 3, ci, encoding)); |
| } |
| |
| { |
| // Verify second stack map. |
| StackMap sm1 = ci.GetStackMapAt(1, encoding); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm1, encoding, 2); |
| ASSERT_EQ(56, dex_registers0.GetStackOffsetInBytes(0, 2, ci, encoding)); |
| ASSERT_EQ(0, dex_registers0.GetConstant(1, 2, ci, encoding)); |
| |
| InlineInfo if1 = ci.GetInlineInfoOf(sm1, encoding); |
| ASSERT_EQ(3u, if1.GetDepth(encoding.inline_info.encoding)); |
| ASSERT_EQ(2u, if1.GetDexPcAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_TRUE(if1.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_EQ(3u, if1.GetDexPcAtDepth(encoding.inline_info.encoding, 1)); |
| ASSERT_TRUE(if1.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 1)); |
| ASSERT_EQ(5u, if1.GetDexPcAtDepth(encoding.inline_info.encoding, 2)); |
| ASSERT_TRUE(if1.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 2)); |
| |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapAtDepth(0, if1, encoding, 1); |
| ASSERT_EQ(12, dex_registers1.GetStackOffsetInBytes(0, 1, ci, encoding)); |
| |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapAtDepth(1, if1, encoding, 3); |
| ASSERT_EQ(80, dex_registers2.GetStackOffsetInBytes(0, 3, ci, encoding)); |
| ASSERT_EQ(10, dex_registers2.GetConstant(1, 3, ci, encoding)); |
| ASSERT_EQ(5, dex_registers2.GetMachineRegister(2, 3, ci, encoding)); |
| |
| ASSERT_FALSE(if1.HasDexRegisterMapAtDepth(encoding.inline_info.encoding, 2)); |
| } |
| |
| { |
| // Verify third stack map. |
| StackMap sm2 = ci.GetStackMapAt(2, encoding); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm2, encoding, 2); |
| ASSERT_FALSE(dex_registers0.IsDexRegisterLive(0)); |
| ASSERT_EQ(4, dex_registers0.GetConstant(1, 2, ci, encoding)); |
| ASSERT_FALSE(sm2.HasInlineInfo(encoding.stack_map.encoding)); |
| } |
| |
| { |
| // Verify fourth stack map. |
| StackMap sm3 = ci.GetStackMapAt(3, encoding); |
| |
| DexRegisterMap dex_registers0 = ci.GetDexRegisterMapOf(sm3, encoding, 2); |
| ASSERT_EQ(56, dex_registers0.GetStackOffsetInBytes(0, 2, ci, encoding)); |
| ASSERT_EQ(0, dex_registers0.GetConstant(1, 2, ci, encoding)); |
| |
| InlineInfo if2 = ci.GetInlineInfoOf(sm3, encoding); |
| ASSERT_EQ(3u, if2.GetDepth(encoding.inline_info.encoding)); |
| ASSERT_EQ(2u, if2.GetDexPcAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_TRUE(if2.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 0)); |
| ASSERT_EQ(5u, if2.GetDexPcAtDepth(encoding.inline_info.encoding, 1)); |
| ASSERT_TRUE(if2.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 1)); |
| ASSERT_EQ(10u, if2.GetDexPcAtDepth(encoding.inline_info.encoding, 2)); |
| ASSERT_TRUE(if2.EncodesArtMethodAtDepth(encoding.inline_info.encoding, 2)); |
| |
| ASSERT_FALSE(if2.HasDexRegisterMapAtDepth(encoding.inline_info.encoding, 0)); |
| |
| DexRegisterMap dex_registers1 = ci.GetDexRegisterMapAtDepth(1, if2, encoding, 1); |
| ASSERT_EQ(2, dex_registers1.GetMachineRegister(0, 1, ci, encoding)); |
| |
| DexRegisterMap dex_registers2 = ci.GetDexRegisterMapAtDepth(2, if2, encoding, 2); |
| ASSERT_FALSE(dex_registers2.IsDexRegisterLive(0)); |
| ASSERT_EQ(3, dex_registers2.GetMachineRegister(1, 2, ci, encoding)); |
| } |
| } |
| |
| TEST(StackMapTest, CodeOffsetTest) { |
| // Test minimum alignments, encoding, and decoding. |
| CodeOffset offset_thumb2 = CodeOffset::FromOffset(kThumb2InstructionAlignment, kThumb2); |
| CodeOffset offset_arm64 = CodeOffset::FromOffset(kArm64InstructionAlignment, kArm64); |
| CodeOffset offset_x86 = CodeOffset::FromOffset(kX86InstructionAlignment, kX86); |
| CodeOffset offset_x86_64 = CodeOffset::FromOffset(kX86_64InstructionAlignment, kX86_64); |
| CodeOffset offset_mips = CodeOffset::FromOffset(kMipsInstructionAlignment, kMips); |
| CodeOffset offset_mips64 = CodeOffset::FromOffset(kMips64InstructionAlignment, kMips64); |
| EXPECT_EQ(offset_thumb2.Uint32Value(kThumb2), kThumb2InstructionAlignment); |
| EXPECT_EQ(offset_arm64.Uint32Value(kArm64), kArm64InstructionAlignment); |
| EXPECT_EQ(offset_x86.Uint32Value(kX86), kX86InstructionAlignment); |
| EXPECT_EQ(offset_x86_64.Uint32Value(kX86_64), kX86_64InstructionAlignment); |
| EXPECT_EQ(offset_mips.Uint32Value(kMips), kMipsInstructionAlignment); |
| EXPECT_EQ(offset_mips64.Uint32Value(kMips64), kMips64InstructionAlignment); |
| } |
| |
| |
| TEST(StackMapTest, TestDeduplicateStackMask) { |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| StackMapStream stream(&arena, kRuntimeISA); |
| |
| ArenaBitVector sp_mask(&arena, 0, true); |
| sp_mask.SetBit(1); |
| sp_mask.SetBit(4); |
| stream.BeginStackMapEntry(0, 4, 0x3, &sp_mask, 0, 0); |
| stream.EndStackMapEntry(); |
| stream.BeginStackMapEntry(0, 8, 0x3, &sp_mask, 0, 0); |
| stream.EndStackMapEntry(); |
| |
| size_t size = stream.PrepareForFillIn(); |
| void* memory = arena.Alloc(size, kArenaAllocMisc); |
| MemoryRegion region(memory, size); |
| stream.FillIn(region); |
| |
| CodeInfo code_info(region); |
| CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| ASSERT_EQ(2u, code_info.GetNumberOfStackMaps(encoding)); |
| |
| StackMap stack_map1 = code_info.GetStackMapForNativePcOffset(4, encoding); |
| StackMap stack_map2 = code_info.GetStackMapForNativePcOffset(8, encoding); |
| EXPECT_EQ(stack_map1.GetStackMaskIndex(encoding.stack_map.encoding), |
| stack_map2.GetStackMaskIndex(encoding.stack_map.encoding)); |
| } |
| |
| } // namespace art |