[PATCH] D92865: [AArch64] Don't try to compress jump tables if there are any inline asm instructions.

[Amara Emerson via Phabricator via llvm-commits]

aemerson created this revision.
aemerson added a reviewer: t.p.northover.
aemerson added a project: LLVM.
Herald added subscribers: danielkiss, hiraditya, kristof.beyls.
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Inline asm can contain constructs like .bytes which may have arbitrary size. In some cases, this causes us to miscalculate the size of blocks and therefore offsets, causing us to incorrectly compress a JT.

To be safe, just bail out of the whole thing if we find any inline asm.

Fixes PR48255


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D92865

Files:
  llvm/lib/Target/AArch64/AArch64CompressJumpTables.cpp
  llvm/test/CodeGen/AArch64/jump-table-compress.mir
  llvm/test/CodeGen/AArch64/jump-table.ll

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