[PATCH] D137343: [clang] add -Wvla-stack-allocation

[Tao Liang via Phabricator via cfe-commits]

Origami404 updated this revision to Diff 483796.
Origami404 added a comment.

[clang] add -Wvla-stack-allocation and divide different VLA warning

New behaviors:

-Wvla-stack-allocation

  warns on use of a VLA that involves a stack allocation

-Wvla-portability

  warns on any use of a VM type, even if -Wvla-stack-allocation is
  given.

-Wvla

  groups together -Wvla-stack-allocation and -Wvla-portability

Fixes: https://github.com/llvm/llvm-project/issues/57098
Link: https://reviews.llvm.org/D132952

Co-authored-by: YingChi Long <me at inclyc.cn>

Differential Revision: https://reviews.llvm.org/D137343


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137343/new/

https://reviews.llvm.org/D137343

Files:
  clang/docs/ReleaseNotes.rst
  clang/include/clang/Basic/DiagnosticGroups.td
  clang/include/clang/Basic/DiagnosticSemaKinds.td
  clang/lib/Sema/SemaDecl.cpp
  clang/lib/Sema/SemaType.cpp
  clang/test/C/drs/dr3xx.c
  clang/test/Sema/cast.c
  clang/test/Sema/warn-vla.c
  clang/test/SemaCXX/warn-vla.cpp

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