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Author SHA1 Message Date
Sanjay Patel d27a21874b [x86, SSE/AVX] allow 128/256-bit lowering for copysign vector intrinsics (PR30433) 
This should fix:
https://llvm.org/bugs/show_bug.cgi?id=30433

There are a couple of open questions about the codegen:
1. Should we let scalar ops be scalars and avoid vector constant loads/splats?
2. Should we have a pass to combine constants such as the inverted pair that we have here?

Differential Revision: https://reviews.llvm.org/D25165
 

llvm-svn: 283119
 2016-10-03 16:38:27 +00:00
Sanjay Patel 170d7eb303 [x86] remove 'nan' strings from copysign assertions; NFC 
Preemptively scrubbing these to avoid a bot fail as in PR30443:
https://llvm.org/bugs/show_bug.cgi?id=30443

I'm nearly done with a patch to fix these cases, so not trying very
hard to do better for the temporary win. 

I plan to use better checks than what the script produces for the vectorized cases.

llvm-svn: 283072
 2016-10-02 17:07:24 +00:00
Sanjay Patel dfbbbcd662 [x86] add test to show unnecessary scalarization of copysign intrinsics (PR30433) 
llvm-svn: 283071
 2016-10-02 16:31:35 +00:00