0725b51c45ba79c85c0f4c8e5b50f645295d7547 - llvm-project/clang

commit	0725b51c45ba79c85c0f4c8e5b50f645295d7547	[log] [tgz]
author	Eli Friedman <efriedma@quicinc.com>	Wed Mar 10 10:51:00 2021 -0800
committer	Copybara-Service <copybara-worker@google.com>	Fri Apr 16 12:13:29 2021 -0700
tree	68877d304892bb5692e52aae20779512347a6325
parent	874814c9392f735db625860453f858f1b64c37a9 [diff]

[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

include/clang/Sema/Sema.h[diff]
lib/Sema/SemaDecl.cpp[diff]
lib/Sema/SemaExpr.cpp[diff]
test/Sema/vla.c[diff]

4 files changed

tree: 68877d304892bb5692e52aae20779512347a6325