src/arm/lithium-codegen-arm.cc - Issue 172133003: Harmony: optimize Math.clz32.

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

Issue 172133003: Harmony: optimize Math.clz32. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 6 years, 10 months ago

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Index: src/arm/lithium-codegen-arm.cc

diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc

index 5ff3fa07641abe92c0e912de3ed7bf04e86cfeef..f7a5a0796353ac41cd5e157b29034fed615fc919 100644

--- a/src/arm/lithium-codegen-arm.cc

+++ b/src/arm/lithium-codegen-arm.cc

@@ -3868,6 +3868,13 @@ void LCodeGen::DoMathLog(LMathLog* instr) {

}

+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(r1));