[PATCH] D105169: [Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default

[Evgenii Stepanov via Phabricator via cfe-commits]

eugenis added a comment.

You are absolutely right. X86 variant uses an "=a" constraint (rax register), others pin the output variable to a specific register with __asm__ declaration. It appears we've missed it in Aarch64.

Could you check if __asm__("x0") in the declaration of res helps?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D105169/new/

https://reviews.llvm.org/D105169