[PATCH] D13003: [DAGCombiner] Improve FMA support for interpolation patterns

[Simon Pilgrim via llvm-commits]

RKSimon updated this revision to Diff 35267.
RKSimon added a comment.

Updated all FMA combine helpers based on Matt's feedback.

Added AMDGPU FMA/FMAD tests


Repository:
  rL LLVM

http://reviews.llvm.org/D13003

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AMDGPU/fma-combine.ll
  test/CodeGen/AMDGPU/llvm.amdgpu.lrp.ll
  test/CodeGen/X86/fma_patterns.ll

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