[PATCH] D71357: AMDGPU: Assume f32 denormals are enabled by default

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added a reviewer: rampitec.
Herald added subscribers: hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl.
Herald added a project: LLVM.
arsenm added parent revisions: D69878: Consoldiate internal denormal flushing controls, D69978: Separately track input and output denormal mode.

This will likely introduce catastrophic performance regressions, but
should be correct. A follow-up change will switch the default based on
the calling convention / function attributes which should avoid the
regressions.


https://reviews.llvm.org/D71357

Files:
  llvm/docs/ReleaseNotes.rst
  llvm/lib/Target/AMDGPU/AMDGPUSubtarget.cpp
  llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
  llvm/test/CodeGen/AMDGPU/amdgcn-ieee.ll
  llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll
  llvm/test/CodeGen/AMDGPU/clamp-modifier.ll
  llvm/test/CodeGen/AMDGPU/clamp.ll
  llvm/test/CodeGen/AMDGPU/default-fp-mode.ll
  llvm/test/CodeGen/AMDGPU/fcanonicalize.f16.ll
  llvm/test/CodeGen/AMDGPU/fcanonicalize.ll
  llvm/test/CodeGen/AMDGPU/fdiv.f16.ll
  llvm/test/CodeGen/AMDGPU/fdot2.ll
  llvm/test/CodeGen/AMDGPU/fma-combine.ll
  llvm/test/CodeGen/AMDGPU/fmaxnum.ll
  llvm/test/CodeGen/AMDGPU/fminnum.ll
  llvm/test/CodeGen/AMDGPU/fmul-2-combine-multi-use.ll
  llvm/test/CodeGen/AMDGPU/fneg-combines.ll
  llvm/test/CodeGen/AMDGPU/frem.ll
  llvm/test/CodeGen/AMDGPU/hsa-fp-mode.ll
  llvm/test/CodeGen/AMDGPU/known-never-snan.ll
  llvm/test/CodeGen/AMDGPU/llvm.fmuladd.f16.ll
  llvm/test/CodeGen/AMDGPU/llvm.maxnum.f16.ll
  llvm/test/CodeGen/AMDGPU/llvm.minnum.f16.ll
  llvm/test/CodeGen/AMDGPU/mad-combine.ll
  llvm/test/CodeGen/AMDGPU/mad-mix-hi.ll
  llvm/test/CodeGen/AMDGPU/mad-mix-lo.ll
  llvm/test/CodeGen/AMDGPU/madak.ll
  llvm/test/CodeGen/AMDGPU/madmk.ll
  llvm/test/CodeGen/AMDGPU/mul24-pass-ordering.ll
  llvm/test/CodeGen/AMDGPU/omod.ll
  llvm/test/CodeGen/AMDGPU/operand-folding.ll
  llvm/test/CodeGen/AMDGPU/rcp-pattern.ll
  llvm/test/CodeGen/AMDGPU/rcp_iflag.ll
  llvm/test/CodeGen/AMDGPU/sdivrem64.ll
  llvm/test/CodeGen/AMDGPU/stack-realign-kernel.ll
  llvm/test/CodeGen/AMDGPU/udivrem64.ll
  llvm/test/CodeGen/AMDGPU/v_mac.ll
  llvm/test/CodeGen/AMDGPU/v_mac_f16.ll
  llvm/test/CodeGen/AMDGPU/v_madak_f16.ll
  llvm/test/CodeGen/MIR/AMDGPU/machine-function-info.ll

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