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Author SHA1 Message Date
Matt Arsenault 550c66d10f AMDGPU: Look for src mods before fp_extend 
When selecting modifiers for mad_mix instructions,
look at fneg/fabs that occur before the conversion.

llvm-svn: 315748
 2017-10-13 20:45:49 +00:00
Matt Arsenault 4d70754e3c AMDGPU: Implement isFPExtFoldable 
This helps match v_mad_mix* in some cases.

llvm-svn: 315744
 2017-10-13 20:18:59 +00:00