[PATCH] D14909: [X86][FMA] Optimize FNEG(FMUL) Patterns

[Simon Pilgrim via llvm-commits]

RKSimon updated this revision to Diff 41439.
RKSimon added a comment.

Updated to use FNMSUB instead of FNMADD.

Added FIXME for once we have rounding control flags


Repository:
  rL LLVM

http://reviews.llvm.org/D14909

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/fma_patterns.ll
  test/CodeGen/X86/fma_patterns_wide.ll

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