[all-commits] [llvm/llvm-project] 04e5b7: AArch64: fall back to DWARF instead of crashing on...

[Tim Northover via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 04e5b7fd17748bd10ae0f30cb571103e5da0dde5
      https://github.com/llvm/llvm-project/commit/04e5b7fd17748bd10ae0f30cb571103e5da0dde5
  Author: Tim Northover <tnorthover at apple.com>
  Date:   2022-05-18 (Wed, 18 May 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/MCTargetDesc/AArch64AsmBackend.cpp
    M llvm/test/MC/AArch64/arm64-compact-unwind-fallback.s

  Log Message:
  -----------
  AArch64: fall back to DWARF instead of crashing on weird .cfi directives

CodeGen will only produce fixed formwat prologues, but hand-written assembly
can have .cfi directives in any combination they want. This should cause a
fallback to DWARF rather than an assertion failure (or an incorrect compact
unwind if assertions are disabled).