[PATCH] D156667: GlobalISel: Don't expand stacksave/stackrestore in IRTranslator

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: aemerson, Pierre-vh, paquette, dsanders, nitinjohnraj.
Herald added subscribers: pengfei, hiraditya.
Herald added a project: All.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

In some (likely invalid edge cases anyway), it's not correct to
directly copy the stack pointer register.


https://reviews.llvm.org/D156667

Files:
  llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
  llvm/include/llvm/Support/TargetOpcodes.def
  llvm/include/llvm/Target/GenericOpcodes.td
  llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp
  llvm/lib/Target/X86/X86LegalizerInfo.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
  llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
  llvm/test/CodeGen/AArch64/GlobalISel/stacksave-stackrestore.ll
  llvm/test/CodeGen/X86/GlobalISel/stacksave-stackrestore.ll

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