[llvm-commits] Turning off SSE codegen for x86-64?

[Dale Johannesen]

> So far I found that functions with va-args get SSE registers pushed on
> the stack on x86-64/linux.
> Could you point me to the place where this happens in llvm codegen? If
> its not too complicated I may try to propose a patch when I find  
> some time.

LowerCALL in X86ISelLowering.cpp, and X86CallingConv.td.  You'll need  
to match up with the
prolog code which is in LowerFORMAL_ARGUMENTS.