[PATCH] D28883: DAG: Recognize no-signed-zeros-fp-math attribute

[Matt Arsenault via Phabricator via llvm-commits]

arsenm updated this revision to Diff 85695.
arsenm added a comment.

Don't have unsafe-fp-math imply no-signed-zeros


https://reviews.llvm.org/D28883

Files:
  include/llvm/CodeGen/CommandFlags.h
  include/llvm/Target/TargetOptions.h
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  lib/Target/TargetMachine.cpp
  test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll
  test/CodeGen/AMDGPU/fsub.ll
  test/CodeGen/X86/negative-sin.ll

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