tree 68877d304892bb5692e52aae20779512347a6325
parent 874814c9392f735db625860453f858f1b64c37a9
author Eli Friedman <efriedma@quicinc.com> 1615402260 -0800
committer Copybara-Service <copybara-worker@google.com> 1618600409 -0700

[Sema] Fold VLA types in compound literals to constant arrays.

Similar to variables with an initializer, this is never valid in
standard C, so we can safely constant-fold as an extension.  I ran into
this construct in a couple proprietary codebases.

While I'm here, drive-by fix for 090dd647: we should only fold variables
with VLA types, not arbitrary variably modified types.

Differential Revision: https://reviews.llvm.org/D98363

GitOrigin-RevId: dc1ab590a0527533815aeed0100de54a5f4a4829