[PATCH] D135277: [AArch64] Add SEH_Nop opcodes for BTI hints

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo created this revision.
mstorsjo added reviewers: efriedma, zzheng, sdesmalen.
Herald added subscribers: hiraditya, kristof.beyls.
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mstorsjo requested review of this revision.
Herald added a project: LLVM.

These are harmless for the unwinder - the unwinder doesn't need to
handle them for being able to unwind correctly.

Only add the opcodes when the branch target is in a SEH prologue;
for jumptables e.g. within a function, we shouldn't add any SEH
opcodes.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135277

Files:
  llvm/lib/Target/AArch64/AArch64BranchTargets.cpp
  llvm/test/CodeGen/AArch64/wineh-bti.ll

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