[PATCH] D42898: Do not spill CSR to stack on entry to noreturn functions

[pmb via Phabricator via llvm-commits]

myeisha updated this revision to Diff 132806.
myeisha edited the summary of this revision.
myeisha added a comment.

Restricated CSR save skip to noreturn nounwind functions from previously noreturn. Exception handlers might need CSRs restored.


https://reviews.llvm.org/D42898

Files:
  lib/CodeGen/TargetFrameLoweringImpl.cpp
  test/CodeGen/AArch64/arm64-shrink-wrapping.ll
  test/CodeGen/ARM/arm-shrink-wrapping.ll
  test/CodeGen/ARM/noreturn-csr-skip.ll
  test/CodeGen/PowerPC/ppc-shrink-wrapping.ll
  test/CodeGen/Thumb/thumb-shrink-wrapping.ll
  test/CodeGen/X86/2010-02-19-TailCallRetAddrBug.ll
  test/CodeGen/X86/x86-shrink-wrapping.ll

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