diff options
Diffstat (limited to 'compiler/optimizing/code_generator.cc')
| -rw-r--r-- | compiler/optimizing/code_generator.cc | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc index b0e6a75b3d..e0db0f18be 100644 --- a/compiler/optimizing/code_generator.cc +++ b/compiler/optimizing/code_generator.cc @@ -38,7 +38,7 @@ void CodeGenerator::CompileBaseline(CodeAllocator* allocator) { DCHECK_EQ(frame_size_, kUninitializedFrameSize); ComputeFrameSize(GetGraph()->GetMaximumNumberOfOutVRegs() - + GetGraph()->GetNumberOfVRegs() + + GetGraph()->GetNumberOfLocalVRegs() + GetGraph()->GetNumberOfTemporaries() + 1 /* filler */); GenerateFrameEntry(); @@ -106,6 +106,39 @@ size_t CodeGenerator::AllocateFreeRegisterInternal( return -1; } +void CodeGenerator::ComputeFrameSize(size_t number_of_spill_slots) { + SetFrameSize(RoundUp( + number_of_spill_slots * kVRegSize + + kVRegSize // Art method + + FrameEntrySpillSize(), + kStackAlignment)); +} + +Location CodeGenerator::GetTemporaryLocation(HTemporary* temp) const { + uint16_t number_of_locals = GetGraph()->GetNumberOfLocalVRegs(); + // Use the temporary region (right below the dex registers). + int32_t slot = GetFrameSize() - FrameEntrySpillSize() + - kVRegSize // filler + - (number_of_locals * kVRegSize) + - ((1 + temp->GetIndex()) * kVRegSize); + return Location::StackSlot(slot); +} + +int32_t CodeGenerator::GetStackSlot(HLocal* local) const { + uint16_t reg_number = local->GetRegNumber(); + uint16_t number_of_locals = GetGraph()->GetNumberOfLocalVRegs(); + if (reg_number >= number_of_locals) { + // Local is a parameter of the method. It is stored in the caller's frame. + return GetFrameSize() + kVRegSize // ART method + + (reg_number - number_of_locals) * kVRegSize; + } else { + // Local is a temporary in this method. It is stored in this method's frame. + return GetFrameSize() - FrameEntrySpillSize() + - kVRegSize // filler. + - (number_of_locals * kVRegSize) + + (reg_number * kVRegSize); + } +} void CodeGenerator::AllocateRegistersLocally(HInstruction* instruction) const { LocationSummary* locations = instruction->GetLocations(); |