[PATCH] D81833: [X86][FPEnv] Lowering of {get,set,reset}_fpenv

[Serge Pavlov via Phabricator via llvm-commits]

sepavloff created this revision.
sepavloff added reviewers: craig.topper, RKSimon, andreadb, pengfei.
Herald added subscribers: lebedev.ri, gbedwell, hiraditya.
Herald added a reviewer: lebedev.ri.
Herald added a project: LLVM.

The change implements lowering of `get_fpenv`, `set_fpenv` and
`reset_fpenv`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D81833

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/lib/Target/X86/X86InstrFPStack.td
  llvm/lib/Target/X86/X86SelectionDAGInfo.cpp
  llvm/lib/Target/X86/X86SelectionDAGInfo.h
  llvm/test/CodeGen/X86/fpenv.ll
  llvm/test/tools/llvm-mca/X86/Atom/resources-x87.s
  llvm/test/tools/llvm-mca/X86/Barcelona/resources-x87.s
  llvm/test/tools/llvm-mca/X86/BdVer2/resources-x87.s
  llvm/test/tools/llvm-mca/X86/Broadwell/resources-x87.s
  llvm/test/tools/llvm-mca/X86/BtVer2/resources-x87.s
  llvm/test/tools/llvm-mca/X86/Generic/resources-x87.s
  llvm/test/tools/llvm-mca/X86/Haswell/resources-x87.s
  llvm/test/tools/llvm-mca/X86/SLM/resources-x87.s
  llvm/test/tools/llvm-mca/X86/SandyBridge/resources-x87.s
  llvm/test/tools/llvm-mca/X86/SkylakeClient/resources-x87.s
  llvm/test/tools/llvm-mca/X86/SkylakeServer/resources-x87.s
  llvm/test/tools/llvm-mca/X86/Znver1/resources-x87.s
  llvm/test/tools/llvm-mca/X86/Znver2/resources-x87.s

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