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Fix SSE2 debug asserts in LayoutTests

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R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11675005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13280 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
danno@chromium.org 2012-12-27 15:40:34 +00:00
parent 2f821f1ed9
commit 9307f8ea30
1 changed files with 21 additions and 27 deletions
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48
src/ia32/lithium-gap-resolver-ia32.cc
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@ -324,37 +324,29 @@ void LGapResolver::EmitMove(int index) {
}
} else if (source->IsDoubleRegister()) {
if (CpuFeatures::IsSupported(SSE2)) {
CpuFeatures::Scope scope(SSE2);
XMMRegister src = cgen_->ToDoubleRegister(source);
if (destination->IsDoubleRegister()) {
XMMRegister dst = cgen_->ToDoubleRegister(destination);
__ movaps(dst, src);
} else {
ASSERT(destination->IsDoubleStackSlot());
Operand dst = cgen_->ToOperand(destination);
__ movdbl(dst, src);
}
CpuFeatures::Scope scope(SSE2);
XMMRegister src = cgen_->ToDoubleRegister(source);
if (destination->IsDoubleRegister()) {
XMMRegister dst = cgen_->ToDoubleRegister(destination);
__ movaps(dst, src);
} else {
UNREACHABLE();
ASSERT(destination->IsDoubleStackSlot());
Operand dst = cgen_->ToOperand(destination);
__ movdbl(dst, src);
}
} else if (source->IsDoubleStackSlot()) {
if (CpuFeatures::IsSupported(SSE2)) {
CpuFeatures::Scope scope(SSE2);
ASSERT(destination->IsDoubleRegister() ||
destination->IsDoubleStackSlot());
Operand src = cgen_->ToOperand(source);
if (destination->IsDoubleRegister()) {
XMMRegister dst = cgen_->ToDoubleRegister(destination);
__ movdbl(dst, src);
} else {
// We rely on having xmm0 available as a fixed scratch register.
Operand dst = cgen_->ToOperand(destination);
__ movdbl(xmm0, src);
__ movdbl(dst, xmm0);
}
CpuFeatures::Scope scope(SSE2);
ASSERT(destination->IsDoubleRegister() ||
destination->IsDoubleStackSlot());
Operand src = cgen_->ToOperand(source);
if (destination->IsDoubleRegister()) {
XMMRegister dst = cgen_->ToDoubleRegister(destination);
__ movdbl(dst, src);
} else {
UNREACHABLE();
// We rely on having xmm0 available as a fixed scratch register.
Operand dst = cgen_->ToOperand(destination);
__ movdbl(xmm0, src);
__ movdbl(dst, xmm0);
}
} else {
UNREACHABLE();
@ -429,6 +421,7 @@ void LGapResolver::EmitSwap(int index) {
__ movaps(dst, xmm0);
} else if (source->IsDoubleRegister() || destination->IsDoubleRegister()) {
CpuFeatures::Scope scope(SSE2);
// XMM register-memory swap. We rely on having xmm0
// available as a fixed scratch register.
ASSERT(source->IsDoubleStackSlot() || destination->IsDoubleStackSlot());
@ -442,6 +435,7 @@ void LGapResolver::EmitSwap(int index) {
__ movdbl(reg, Operand(xmm0));
} else if (source->IsDoubleStackSlot() && destination->IsDoubleStackSlot()) {
CpuFeatures::Scope scope(SSE2);
// Double-width memory-to-memory. Spill on demand to use a general
// purpose temporary register and also rely on having xmm0 available as
// a fixed scratch register.