[PATCH] D107420: [sema] Disallow __builtin_mul_overflow under special condition.

[Craig Topper via Phabricator via cfe-commits]

craig.topper added a comment.

I put up a patch for a simple fix for this in the backend. https://reviews.llvm.org/D107581  The generated code is not optimal, but maybe better than frontend workarounds.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107420/new/

https://reviews.llvm.org/D107420