[PATCH] D89123: [AMDGPU] Only enable mad/mac legacy f32 patterns if denormals may be flushed

Fri Oct 9 05:38:56 PDT 2020

foad created this revision.
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Following on from D88890 <https://reviews.llvm.org/D88890>, this makes the newly added patterns
conditional on NoFP32Denormals. mad/mac f32 instructions always flush
denormals regardless of the MODE register setting, and I believe the
legacy variants do the same.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D89123

Files:
  llvm/lib/Target/AMDGPU/SIInstructions.td
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.fmul.legacy.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.fmul.legacy.ll

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