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Stop zero-initializing memory used to store return values.

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This seems to have a noticable (small) performance benefit on a
few of the example workloads.
This commit is contained in:
Matt Pharr
2011-11-05 09:49:44 -07:00
parent 51ccfffbd0
commit b0d476fcdc
1 changed files with 0 additions and 2 deletions
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2
ctx.cpp
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@@ -160,8 +160,6 @@ FunctionEmitContext::FunctionEmitContext(Function *func, Symbol *funSym,
else { else {
LLVM_TYPE_CONST llvm::Type *ftype = returnType->LLVMType(g->ctx); LLVM_TYPE_CONST llvm::Type *ftype = returnType->LLVMType(g->ctx);
returnValuePtr = AllocaInst(ftype, "return_value_memory"); returnValuePtr = AllocaInst(ftype, "return_value_memory");
// FIXME: don't do this store???
StoreInst(llvm::Constant::getNullValue(ftype), returnValuePtr);
} }
if (m->diBuilder) { if (m->diBuilder) {