[PATCH] D54273: [WebAssembly] Fix LowerEmscriptenEHSjLj when there's only longjmp

[Heejin Ahn via Phabricator via llvm-commits]

aheejin created this revision.
aheejin added a reviewer: jgravelle-google.
Herald added subscribers: llvm-commits, sunfish, sbc100, dschuff.
aheejin edited the summary of this revision.

The pass incorrectly assumed if there's a longjmp declaration in the
module, there is also a setjmp function declaration. Fixed it, and not
the pass only converts longjmp and does not do any other transformation
when there's no setjmp declaration in the module.

Fixes PR39562 <https://bugs.llvm.org/show_bug.cgi?id=39562>.


Repository:
  rL LLVM

https://reviews.llvm.org/D54273

Files:
  lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp
  test/CodeGen/WebAssembly/lower-em-sjlj-longjmp-only.ll

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