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Author SHA1 Message Date
Matt Arsenault 7401516985 AMDGPU: Add fract intrinsic 
Remove broken patterns matching it. This was matching the
unsafe math pattern and expanding the fix for the buggy instruction
from the pattern. The problems are also on CI. Remove the workarounds
and only use fract with unsafe math or from the intrinsic.

llvm-svn: 271078
 2016-05-28 00:19:52 +00:00
Matt Arsenault 0cbaa1762b AMDGPU: Remove AMDGPU.fract intrinsic 
Mesa doesn't use this, and this is pattern matched already
from fsub x, (ffloor x)

llvm-svn: 258513
 2016-01-22 18:42:38 +00:00