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Unified Diff: src/arm/lithium-arm.cc

Issue 172133003: Harmony: optimize Math.clz32. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: fix Created 6 years, 10 months ago
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Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index fdf4ddfd804026dbdc38dad0ff78ab06f6b9bdc8..3242b19ac7ae046ad03ca408c4701cd1057ce113 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1098,6 +1098,7 @@ LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
case kMathExp: return DoMathExp(instr);
case kMathSqrt: return DoMathSqrt(instr);
case kMathPowHalf: return DoMathPowHalf(instr);
+ case kMathClz32: return DoMathClz32(instr);
default:
UNREACHABLE();
return NULL;
@@ -1139,6 +1140,13 @@ LInstruction* LChunkBuilder::DoMathLog(HUnaryMathOperation* instr) {
}
+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());
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