Revision: 15646
Author: [email protected]
Date: Fri Jul 12 05:34:11 2013
Log: Fix LGapResolver::EmitMove for X64 when the dst is a double
register and src is a constant
[email protected]
Review URL: https://codereview.chromium.org/18301015
Patch from Haitao Feng <[email protected]>.
http://code.google.com/p/v8/source/detail?r=15646
Modified:
/branches/bleeding_edge/src/x64/lithium-gap-resolver-x64.cc
=======================================
--- /branches/bleeding_edge/src/x64/lithium-gap-resolver-x64.cc Fri Jul 5
03:34:02 2013
+++ /branches/bleeding_edge/src/x64/lithium-gap-resolver-x64.cc Fri Jul 12
05:34:11 2013
@@ -205,16 +205,12 @@
} else if (destination->IsDoubleRegister()) {
double v = cgen_->ToDouble(constant_source);
uint64_t int_val = BitCast<uint64_t, double>(v);
- int32_t lower = static_cast<int32_t>(int_val);
- int32_t upper = static_cast<int32_t>(int_val >> (kBitsPerInt));
XMMRegister dst = cgen_->ToDoubleRegister(destination);
if (int_val == 0) {
__ xorps(dst, dst);
} else {
- __ push(Immediate(upper));
- __ push(Immediate(lower));
- __ movsd(dst, Operand(rsp, 0));
- __ addq(rsp, Immediate(kDoubleSize));
+ __ movq(kScratchRegister, int_val, RelocInfo::NONE64);
+ __ movq(dst, kScratchRegister);
}
} else {
ASSERT(destination->IsStackSlot());
--
--
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