[cfe-commits] r132983 - in /cfe/trunk: include/clang/Basic/DiagnosticSemaKinds.td lib/Sema/SemaType.cpp test/Sema/const-eval.c test/Sema/i-c-e.c test/Sema/struct-decl.c test/Sema/typedef-variable-type.c test/Sema/vla.c test/SemaCXX/c99-variable-l
Chris Lattner
sabre at nondot.org
Tue Jun 14 17:47:35 PDT 2011
On Jun 14, 2011, at 5:29 PM, Eli Friedman wrote:
> On Mon, Jun 13, 2011 at 11:38 PM, Chris Lattner <sabre at nondot.org> wrote:
>> Author: lattner
>> Date: Tue Jun 14 01:38:10 2011
>> New Revision: 132983
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=132983&view=rev
>> Log:
>> when compiling in a GNU mode (e.g. gnu99) treat VLAs with a size that can be folded to a constant
>> as constant size arrays. This has slightly different semantics in some insane cases, but allows
>> us to accept some constructs that GCC does. Continue to be pedantic in -std=c99 and other
>> modes. This addressed rdar://8733881 - error "variable-sized object may not be initialized"; g++ accepts same code
>>
>> Modified:
>> cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
>> cfe/trunk/lib/Sema/SemaType.cpp
>> cfe/trunk/test/Sema/const-eval.c
>> cfe/trunk/test/Sema/i-c-e.c
>> cfe/trunk/test/Sema/struct-decl.c
>> cfe/trunk/test/Sema/typedef-variable-type.c
>> cfe/trunk/test/Sema/vla.c
>> cfe/trunk/test/SemaCXX/c99-variable-length-array.cpp
>
> This should probably get added to
> http://clang.llvm.org/docs/UsersManual.html#c_modes .
Great idea, I didn't know we had that. Fixed in r133030, thanks!
-Chris
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