src/ia32/lithium-codegen-ia32.cc - Issue 6532054: X64 Crankshaft: Implement MathRound, MathFloor, MathSqrt, and MathPowHalf Una...

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Unified Diff: src/ia32/lithium-codegen-ia32.cc

Issue 6532054: X64 Crankshaft: Implement MathRound, MathFloor, MathSqrt, and MathPowHalf Una... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/

Patch Set: '' Created 9 years, 10 months ago

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Index: src/ia32/lithium-codegen-ia32.cc

===================================================================

--- src/ia32/lithium-codegen-ia32.cc (revision 6855)

+++ src/ia32/lithium-codegen-ia32.cc (working copy)

@@ -2493,11 +2493,6 @@

XMMRegister xmm_scratch = xmm0;

XMMRegister input_reg = ToDoubleRegister(instr->InputAt(0));

ASSERT(ToDoubleRegister(instr->result()).is(input_reg));

- ExternalReference negative_infinity =

- ExternalReference::address_of_negative_infinity();

- __ movdbl(xmm_scratch, Operand::StaticVariable(negative_infinity));

- __ ucomisd(xmm_scratch, input_reg);

- DeoptimizeIf(equal, instr->environment());

__ xorpd(xmm_scratch, xmm_scratch);

__ addsd(input_reg, xmm_scratch); // Convert -0 to +0.

__ sqrtsd(input_reg, input_reg);

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