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/builder.cc b/compiler/optimizing/builder.cc
index 2648d4d..2f1a092 100644
--- a/compiler/optimizing/builder.cc
+++ b/compiler/optimizing/builder.cc
@@ -267,6 +267,13 @@
}
template<typename T>
+void HGraphBuilder::Unop_12x(const Instruction& instruction, Primitive::Type type) {
+ HInstruction* first = LoadLocal(instruction.VRegB(), type);
+ current_block_->AddInstruction(new (arena_) T(type, first));
+ UpdateLocal(instruction.VRegA(), current_block_->GetLastInstruction());
+}
+
+template<typename T>
void HGraphBuilder::Binop_23x(const Instruction& instruction, Primitive::Type type) {
HInstruction* first = LoadLocal(instruction.VRegB(), type);
HInstruction* second = LoadLocal(instruction.VRegC(), type);
@@ -678,6 +685,11 @@
break;
}
+ case Instruction::NEG_INT: {
+ Unop_12x<HNeg>(instruction, Primitive::kPrimInt);
+ break;
+ }
+
case Instruction::ADD_INT: {
Binop_23x<HAdd>(instruction, Primitive::kPrimInt);
break;