[PATCH] D60548: Variable auto-init: also auto-init alloca

[JF Bastien via Phabricator via cfe-commits]

jfb added a comment.

In D60548#1462124 <https://reviews.llvm.org/D60548#1462124>, @jfb wrote:

> One downside to alloca is that we can's use `__attribute__((uninitialized))` because it's a builtin. Maybe we need a separate uninitialized alloca? What do you all think?


Actually I'm wondering if we should just implement:

  #pragma clang attribute push (__attribute__((uninitialized)), apply_to = variable(unless(is_global)))

And lean on that for `alloca`, instead of having a new uninitialized `alloca` builtin. The pragma is useful for debugging regardless, so I think overall it's better.


Repository:
  rC Clang

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https://reviews.llvm.org/D60548