[PATCH] D159238: [AArch64][WinCFI] Handle cases where no SEH opcodes in the prologue but there are some in the epilogue.

[Hiroshi Yamauchi via Phabricator via llvm-commits]

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Make a decision whether or not to have a startepilogue/endepilogue based on whether we actually insert SEH opcodes in the epilogue, rather than whether we had SEH opcodes in the prologue or not.

This fixes an assert failure when there are no SEH opcodes in the prologue but there are SEH opcodes in the epilogue (for example, when there is no stack frame but there are stack arguments) which was not covered in https://reviews.llvm.org/D88641.

Assertion failed: HasWinCFI == MF.hasWinCFI(), file C:\Users\hiroshi\llvm-project\llvm\lib\Target\AArch64\AArch64FrameLowering.cpp, line 1988


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D159238

Files:
  llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
  llvm/test/CodeGen/AArch64/wincfi-seh-only-in-epilogue.ll

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