melver abandoned this revision.
melver added a comment.

GCC devs say that initializing explicit alloca() is a bug, because they aren't 
"automatic storage": 
https://lkml.kernel.org/r/20211209201616.gu...@gate.crashing.org
.. which is also the reason why GCC's behaviour differs here at the moment.

I actually agree with that, and alloca auto-init behaviour needs a new -mllvm 
param.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D115440/new/

https://reviews.llvm.org/D115440

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