[llvm-bugs] [Bug 35869] _mm_setzero_si64 violates the spec by generating xorps instead of pxor
via llvm-bugs
llvm-bugs at lists.llvm.org
Tue Jan 9 11:57:00 PST 2018
https://bugs.llvm.org/show_bug.cgi?id=35869
Gonzalo BG <gonzalobg88 at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|NEW |RESOLVED
--- Comment #5 from Gonzalo BG <gonzalobg88 at gmail.com> ---
> Okay... so that function requests a zero value in an SSE register.
Oh. I screwed up, I thought that `__m64` was always going to be an MMX
register. What is happening in this case? Is the calling convention requiring
it to be turned into an SSE register?
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