[PATCH] D107522: [PowerPC][AIX] attribute aligned cannot decrease align of a vector var.

[Sean Fertile via Phabricator via cfe-commits]

sfertile marked 3 inline comments as done.
sfertile added inline comments.


================
Comment at: clang/lib/Sema/SemaDeclAttr.cpp:4081
+    if (Ty->isVectorType() && AlignVal < 16)
+      return;
+  }
----------------
aaron.ballman wrote:
> This should produce a diagnostic rather than silently drop the attribute. I'd recommend `err_alignas_underaligned` if you're willing to make this an error. If not, you could add a new warning with the same wording.
Thanks for the feedback Aaron. I think an error is too drastic a difference from the other compilers on AIX so I added the warning.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107522/new/

https://reviews.llvm.org/D107522