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Commit 8799ebbc authored by Jeff Mott's avatar Jeff Mott Committed by Erich Keane
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[clang] Fix or emit diagnostic for checked arithmetic builtins with 

_ExtInt types

- Fix computed size for _ExtInt types passed to checked arithmetic
  builtins.
- Emit diagnostic when signed _ExtInt larger than 128-bits is passed
    to __builtin_mul_overflow.
- Change Sema checks for builtins to accept placeholder types.

Differential Revision: https://reviews.llvm.org/D81420
parent 33879aa0
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