diff options
Diffstat (limited to 'compiler/optimizing/code_generator_x86.cc')
| -rw-r--r-- | compiler/optimizing/code_generator_x86.cc | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc index 904e6272c1..0944f4c38f 100644 --- a/compiler/optimizing/code_generator_x86.cc +++ b/compiler/optimizing/code_generator_x86.cc @@ -1282,6 +1282,22 @@ void LocationsBuilderX86::VisitTypeConversion(HTypeConversion* conversion) { Primitive::Type result_type = conversion->GetResultType(); Primitive::Type input_type = conversion->GetInputType(); switch (result_type) { + case Primitive::kPrimByte: + switch (input_type) { + case Primitive::kPrimShort: + case Primitive::kPrimInt: + case Primitive::kPrimChar: + // int-to-byte conversion. + locations->SetInAt(0, Location::Any()); + locations->SetOut(Location::RequiresRegister(), Location::kNoOutputOverlap); + break; + + default: + LOG(FATAL) << "Unexpected type conversion from " << input_type + << " to " << result_type; + } + break; + case Primitive::kPrimInt: switch (input_type) { case Primitive::kPrimLong: @@ -1344,6 +1360,29 @@ void InstructionCodeGeneratorX86::VisitTypeConversion(HTypeConversion* conversio Primitive::Type result_type = conversion->GetResultType(); Primitive::Type input_type = conversion->GetInputType(); switch (result_type) { + case Primitive::kPrimByte: + switch (input_type) { + case Primitive::kPrimShort: + case Primitive::kPrimInt: + case Primitive::kPrimChar: + // int-to-byte conversion. + if (in.IsRegister()) { + __ movsxb(out.As<Register>(), in.As<ByteRegister>()); + } else if (in.IsStackSlot()) { + __ movsxb(out.As<Register>(), Address(ESP, in.GetStackIndex())); + } else { + DCHECK(in.GetConstant()->IsIntConstant()); + int32_t value = in.GetConstant()->AsIntConstant()->GetValue(); + __ movl(out.As<Register>(), Immediate(static_cast<int8_t>(value))); + } + break; + + default: + LOG(FATAL) << "Unexpected type conversion from " << input_type + << " to " << result_type; + } + break; + case Primitive::kPrimInt: switch (input_type) { case Primitive::kPrimLong: |