Port r19487 (bd8c70f)
BUG=v8:2938
LOG=N
R=plind44@gmail.com
Review URL: https://codereview.chromium.org/
172533002
Patch from Balazs Kilvady <kilvadyb@homejinni.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19499
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00
}
+void LCodeGen::DoMathClz32(LMathClz32* instr) {
+ Register input = ToRegister(instr->value());
+ Register result = ToRegister(instr->result());
+ __ Clz(result, input);
+}
+
+
void LCodeGen::DoInvokeFunction(LInvokeFunction* instr) {
ASSERT(ToRegister(instr->context()).is(cp));
ASSERT(ToRegister(instr->function()).is(a1));
case kMathExp: return DoMathExp(instr);
case kMathSqrt: return DoMathSqrt(instr);
case kMathPowHalf: return DoMathPowHalf(instr);
+ case kMathClz32: return DoMathClz32(instr);
default:
UNREACHABLE();
return NULL;
}
+LInstruction* LChunkBuilder::DoMathClz32(HUnaryMathOperation* instr) {
+ LOperand* input = UseRegisterAtStart(instr->value());
+ LMathClz32* result = new(zone()) LMathClz32(input);
+ return DefineAsRegister(result);
+}
+
+
LInstruction* LChunkBuilder::DoMathExp(HUnaryMathOperation* instr) {
ASSERT(instr->representation().IsDouble());
ASSERT(instr->value()->representation().IsDouble());
V(MapEnumLength) \
V(MathAbs) \
V(MathExp) \
+ V(MathClz32) \
V(MathFloor) \
V(MathFloorOfDiv) \
V(MathLog) \
};
+class LMathClz32 V8_FINAL : public LTemplateInstruction<1, 1, 0> {
+ public:
+ explicit LMathClz32(LOperand* value) {
+ inputs_[0] = value;
+ }
+
+ LOperand* value() { return inputs_[0]; }
+
+ DECLARE_CONCRETE_INSTRUCTION(MathClz32, "math-clz32")
+};
+
+
class LMathExp V8_FINAL : public LTemplateInstruction<1, 1, 3> {
public:
LMathExp(LOperand* value,
LInstruction* DoMathExp(HUnaryMathOperation* instr);
LInstruction* DoMathSqrt(HUnaryMathOperation* instr);
LInstruction* DoMathPowHalf(HUnaryMathOperation* instr);
+ LInstruction* DoMathClz32(HUnaryMathOperation* instr);
private:
enum Status {