[PATCH] D93305: [AMDGPU][GlobalISel] Add combiner for generating G_FMAD

[Mateja Marjanovic via Phabricator via llvm-commits]

matejam created this revision.
matejam added reviewers: foad, arsenm, mbrkusanin, Petar.Avramovic.
Herald added subscribers: kerbowa, hiraditya, t-tye, tpr, dstuttard, rovka, yaxunl, nhaehnle, jvesely, kzhuravl.
matejam requested review of this revision.
Herald added subscribers: llvm-commits, wdng.
Herald added a project: LLVM.

When the function has "denormal-fp-math-f32" attribute set to "preserve-sign" or "positive-zero"  and the instruction selector being used is GlobaISel, a combiner will replace G_FMUL and G_FADD with G_FMAD.


https://reviews.llvm.org/D93305

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/test/CodeGen/AMDGPU/combine-g_fmad.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D93305.311901.patch
Type: text/x-patch
Size: 7435 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20201215/dfc56cb7/attachment.bin>