[PATCH] D75467: [instcombine] remove fsub to fneg hacks; only emit fneg

[Simon Moll via Phabricator via cfe-commits]

simoll updated this revision to Diff 247820.
simoll marked an inline comment as done.
simoll added a comment.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

Thanks for the review!

- rebased
- fixed clang test
- added FIXME for correct DTZ, DAZ handling


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D75467/new/

https://reviews.llvm.org/D75467

Files:
  clang/test/CodeGen/fma-builtins-constrained.c
  llvm/include/llvm/IR/PatternMatch.h
  llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
  llvm/lib/Transforms/InstCombine/InstCombineCasts.cpp
  llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
  llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
  llvm/test/Transforms/InstCombine/X86/x86-avx512.ll
  llvm/test/Transforms/InstCombine/cos-1.ll
  llvm/test/Transforms/InstCombine/fadd.ll
  llvm/test/Transforms/InstCombine/fast-math.ll
  llvm/test/Transforms/InstCombine/fdiv.ll
  llvm/test/Transforms/InstCombine/fmul.ll
  llvm/test/Transforms/InstCombine/fneg.ll
  llvm/test/Transforms/InstCombine/fpextend.ll
  llvm/test/Transforms/InstCombine/fsub.ll
  llvm/test/Transforms/InstCombine/maximum.ll
  llvm/test/Transforms/InstCombine/maxnum.ll
  llvm/test/Transforms/InstCombine/minimum.ll
  llvm/test/Transforms/InstCombine/minnum.ll
  llvm/test/Transforms/InstCombine/operand-complexity.ll
  llvm/test/Transforms/InstCombine/vec_shuffle.ll

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