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ia32: Calls to the TranscendentalCacheStub must ensure that esi is set to something safe.

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BUG=v8:2827
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/22863002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16154 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
jkummerow@chromium.org 2013-08-12 16:54:12 +00:00
parent ba8b106059
commit b1a1d5bbcb
1 changed files with 9 additions and 0 deletions
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9
src/ia32/lithium-codegen-ia32.cc
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@ -4092,6 +4092,9 @@ void LCodeGen::DoMathExp(LMathExp* instr) {
void LCodeGen::DoMathTan(LMathTan* instr) {
ASSERT(ToDoubleRegister(instr->result()).is(xmm1));
// Set the context register to a GC-safe fake value. Clobbering it is
// OK because this instruction is marked as a call.
__ Set(esi, Immediate(0));
TranscendentalCacheStub stub(TranscendentalCache::TAN,
TranscendentalCacheStub::UNTAGGED);
CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
@ -4100,6 +4103,9 @@ void LCodeGen::DoMathTan(LMathTan* instr) {
void LCodeGen::DoMathCos(LMathCos* instr) {
ASSERT(ToDoubleRegister(instr->result()).is(xmm1));
// Set the context register to a GC-safe fake value. Clobbering it is
// OK because this instruction is marked as a call.
__ Set(esi, Immediate(0));
TranscendentalCacheStub stub(TranscendentalCache::COS,
TranscendentalCacheStub::UNTAGGED);
CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
@ -4108,6 +4114,9 @@ void LCodeGen::DoMathCos(LMathCos* instr) {
void LCodeGen::DoMathSin(LMathSin* instr) {
ASSERT(ToDoubleRegister(instr->result()).is(xmm1));
// Set the context register to a GC-safe fake value. Clobbering it is
// OK because this instruction is marked as a call.
__ Set(esi, Immediate(0));
TranscendentalCacheStub stub(TranscendentalCache::SIN,
TranscendentalCacheStub::UNTAGGED);
CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);