[PATCH] D125619: [MCWin64EH] Check for matches between epilogs and the prolog on ARM64

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo created this revision.
mstorsjo added reviewers: efriedma, zzheng, rnk.
Herald added subscribers: hiraditya, kristof.beyls.
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mstorsjo requested review of this revision.
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This allows sharing opcodes between prolog and epilog even when there
is more than one epilog.

I didn't make any handcrafted special MC level testcases for this (yet
at least), but it does seem to have the expected effect on two existing
CodeGen level testcases.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125619

Files:
  llvm/lib/MC/MCWin64EH.cpp
  llvm/test/CodeGen/AArch64/wineh4.mir
  llvm/test/CodeGen/AArch64/wineh8.mir

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