diff options
Diffstat (limited to 'compiler/optimizing/code_generator_arm.cc')
| -rw-r--r-- | compiler/optimizing/code_generator_arm.cc | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc index aedba2c9de..18f2ff3e30 100644 --- a/compiler/optimizing/code_generator_arm.cc +++ b/compiler/optimizing/code_generator_arm.cc @@ -1212,7 +1212,9 @@ CodeGeneratorARM::CodeGeneratorARM(HGraph* graph, graph->GetArena()->Adapter(kArenaAllocCodeGenerator)), pc_relative_type_patches_(graph->GetArena()->Adapter(kArenaAllocCodeGenerator)), boot_image_address_patches_(std::less<uint32_t>(), - graph->GetArena()->Adapter(kArenaAllocCodeGenerator)) { + graph->GetArena()->Adapter(kArenaAllocCodeGenerator)), + jit_string_patches_(StringReferenceValueComparator(), + graph->GetArena()->Adapter(kArenaAllocCodeGenerator)) { // Always save the LR register to mimic Quick. AddAllocatedRegister(Location::RegisterLocation(LR)); } @@ -5888,7 +5890,7 @@ HLoadString::LoadKind CodeGeneratorARM::GetSupportedLoadStringKind( break; case HLoadString::LoadKind::kJitTableAddress: DCHECK(Runtime::Current()->UseJitCompilation()); - return HLoadString::LoadKind::kDexCacheViaMethod; + break; case HLoadString::LoadKind::kDexCacheViaMethod: break; } @@ -5975,6 +5977,13 @@ void InstructionCodeGeneratorARM::VisitLoadString(HLoadString* load) { __ Bind(slow_path->GetExitLabel()); return; } + case HLoadString::LoadKind::kJitTableAddress: { + __ LoadLiteral(out, codegen_->DeduplicateJitStringLiteral(load->GetDexFile(), + load->GetStringIndex())); + // /* GcRoot<mirror::String> */ out = *out + GenerateGcRootFieldLoad(load, out_loc, out, /* offset */ 0, kEmitCompilerReadBarrier); + return; + } default: break; } @@ -7199,6 +7208,14 @@ Literal* CodeGeneratorARM::DeduplicateDexCacheAddressLiteral(uint32_t address) { return DeduplicateUint32Literal(address, &uint32_literals_); } +Literal* CodeGeneratorARM::DeduplicateJitStringLiteral(const DexFile& dex_file, + uint32_t string_index) { + jit_string_roots_.Overwrite(StringReference(&dex_file, string_index), /* placeholder */ 0u); + return jit_string_patches_.GetOrCreate( + StringReference(&dex_file, string_index), + [this]() { return __ NewLiteral<uint32_t>(/* placeholder */ 0u); }); +} + template <LinkerPatch (*Factory)(size_t, const DexFile*, uint32_t, uint32_t)> inline void CodeGeneratorARM::EmitPcRelativeLinkerPatches( const ArenaDeque<PcRelativePatchInfo>& infos, @@ -7515,6 +7532,21 @@ void InstructionCodeGeneratorARM::VisitClassTableGet(HClassTableGet* instruction } } +void CodeGeneratorARM::EmitJitRootPatches(uint8_t* code, const uint8_t* roots_data) { + for (const auto& entry : jit_string_patches_) { + const auto& it = jit_string_roots_.find(entry.first); + DCHECK(it != jit_string_roots_.end()); + size_t index_in_table = it->second; + Literal* literal = entry.second; + DCHECK(literal->GetLabel()->IsBound()); + uint32_t literal_offset = literal->GetLabel()->Position(); + uintptr_t address = + reinterpret_cast<uintptr_t>(roots_data) + index_in_table * sizeof(GcRoot<mirror::Object>); + uint8_t* data = code + literal_offset; + reinterpret_cast<uint32_t*>(data)[0] = dchecked_integral_cast<uint32_t>(address); + } +} + #undef __ #undef QUICK_ENTRY_POINT |