Implement int negate instruction in the optimizing compiler.
- Add support for the neg-int (integer two's complement
negate) instruction in the optimizing compiler.
- Add a HNeg node type for control-flow graphs and an
intermediate HUnaryOperation base class.
- Generate ARM, x86 and x86-64 code for integer HNeg nodes.
Change-Id: I72fd3e1e5311a75c38a8cb665a9211a20325a42e
diff --git a/compiler/optimizing/code_generator_x86_64.cc b/compiler/optimizing/code_generator_x86_64.cc
index 5fa9305..0105231 100644
--- a/compiler/optimizing/code_generator_x86_64.cc
+++ b/compiler/optimizing/code_generator_x86_64.cc
@@ -933,6 +933,47 @@
codegen_->RecordPcInfo(invoke, invoke->GetDexPc());
}
+void LocationsBuilderX86_64::VisitNeg(HNeg* neg) {
+ LocationSummary* locations =
+ new (GetGraph()->GetArena()) LocationSummary(neg, LocationSummary::kNoCall);
+ switch (neg->GetResultType()) {
+ case Primitive::kPrimInt:
+ locations->SetInAt(0, Location::RequiresRegister());
+ locations->SetOut(Location::SameAsFirstInput());
+ break;
+
+ case Primitive::kPrimLong:
+ case Primitive::kPrimFloat:
+ case Primitive::kPrimDouble:
+ LOG(FATAL) << "Not yet implemented neg type " << neg->GetResultType();
+ break;
+
+ default:
+ LOG(FATAL) << "Unexpected neg type " << neg->GetResultType();
+ }
+}
+
+void InstructionCodeGeneratorX86_64::VisitNeg(HNeg* neg) {
+ LocationSummary* locations = neg->GetLocations();
+ Location out = locations->Out();
+ Location in = locations->InAt(0);
+ switch (neg->GetResultType()) {
+ case Primitive::kPrimInt:
+ DCHECK(in.IsRegister());
+ __ negl(out.As<CpuRegister>());
+ break;
+
+ case Primitive::kPrimLong:
+ case Primitive::kPrimFloat:
+ case Primitive::kPrimDouble:
+ LOG(FATAL) << "Not yet implemented neg type " << neg->GetResultType();
+ break;
+
+ default:
+ LOG(FATAL) << "Unexpected neg type " << neg->GetResultType();
+ }
+}
+
void LocationsBuilderX86_64::VisitAdd(HAdd* add) {
LocationSummary* locations =
new (GetGraph()->GetArena()) LocationSummary(add, LocationSummary::kNoCall);