Commit Graph

8 Commits

Author SHA1 Message Date
Matt Arsenault 4103a81d6d AMDGPU: Fold fneg into fmul
Patch mostly by Fiona Glaser

llvm-svn: 291732
2017-01-12 00:23:20 +00:00
Matt Arsenault 2a04ff97ad AMDGPU: Pull fneg/fabs out of a select
Allows better source modifier usage.

llvm-svn: 291729
2017-01-11 23:57:38 +00:00
Matt Arsenault e7d8ed32f9 AMDGPU: Swap order of operands in fadd/fsub combine
FMA is canonicalized to constant in the middle operand. Do
the same so fmad matches and avoid an extra combine step.

llvm-svn: 290313
2016-12-22 04:03:40 +00:00
Matt Arsenault ef82ad94ea AMDGPU: Enable some f32 fadd/fsub combines for f16
llvm-svn: 290308
2016-12-22 03:40:39 +00:00
Matt Arsenault d1ceffcd5a AMDGPU: Run fp combine tests on VI
llvm-svn: 290192
2016-12-20 18:55:11 +00:00
Matt Arsenault bbb47da8a1 AMDGPU: Support commuting with immediate in src0
llvm-svn: 280970
2016-09-08 17:19:29 +00:00
Matt Arsenault 44e5483ada AMDGPU: Add volatile to test loads and stores
When the memory vectorizer is enabled, these tests break.
These tests don't really care about the memory instructions,
and it's easier to write check lines with the unmerged loads.

llvm-svn: 266071
2016-04-12 13:38:18 +00:00
Matt Arsenault cabe02e141 Only do fmul (fadd x, x), c combine if the fadd only has one use
This was increasing the instruction count if the fadd has multiple uses.

llvm-svn: 242498
2015-07-17 01:14:35 +00:00