[PATCH] D69978: Separately track input and output denormal mode

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: scanon, cameron.mcinally, spatel, andrew.w.kaylor, mibintc, SjoerdMeijer.
Herald added subscribers: dexonsmith, hiraditya, tpr, nhaehnle, wdng, jvesely, jholewinski.
Herald added a project: LLVM.
arsenm added parent revisions: D69878: Consoldiate internal denormal flushing controls, D69598: Work on cleaning up denormal mode handling.

AMDGPU and x86 at least both have separate controls for whether
denormal results are flushed on output, and for whether denormals are
implicitly treated as 0 as an input. The current DAGCombiner use only
really cares about the input treatment of denormals.


https://reviews.llvm.org/D69978

Files:
  clang/include/clang/Basic/CodeGenOptions.h
  clang/include/clang/Driver/ToolChain.h
  clang/lib/Basic/Targets/AMDGPU.cpp
  clang/lib/CodeGen/CGCall.cpp
  clang/lib/CodeGen/CodeGenModule.cpp
  clang/lib/Driver/ToolChains/AMDGPU.cpp
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Driver/ToolChains/Cuda.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/test/CodeGen/denormalfpmode.c
  clang/test/CodeGenCUDA/flush-denormals.cu
  clang/test/CodeGenCUDA/propagate-metadata.cu
  clang/test/Driver/cl-denorms-are-zero.cl
  clang/test/Driver/cuda-flush-denormals-to-zero.cu
  clang/test/Driver/denormal-fp-math.c
  llvm/docs/LangRef.rst
  llvm/include/llvm/ADT/FloatingPointMode.h
  llvm/lib/CodeGen/MachineFunction.cpp
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
  llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
  llvm/unittests/ADT/FloatingPointMode.cpp

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