On Tue, Jun 14, 2011 at 5:35 PM, Chris Lattner <[email protected]> wrote:
> On Jun 14, 2011, at 4:04 PM, Eli Friedman wrote:
>>>>> 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
>>>>
>>>> http://smooshlab.apple.com:8013/builders/gccTestSuite_clang-x86_64-darwin10-RA__c
>>>
>>> Interesting, one instance (array-5.c) is failing exactly because of what 
>>> we're trying to do here.  Passing -std=c99 fixes the failure.  Does anyone 
>>> know how to do this to the test?
>>
>> /* { dg-options { -std=c99 } } */
>
> Thanks!  I fixed the two failures I introduced, but there are still some 
> failures remaining.  These happened before my commit, an example run is here:
>
> http://smooshlab.apple.com:8013/builders/gccTestSuite_clang-x86_64-darwin10-RA__c/builds/805/steps/test-gcc-4_2-testsuite-gcc/logs/tests.FAIL
>
> Buildbot pins the blame on a small range of commits: r132973 (pcc)'s patch is 
> the most likely candidate.

Still one failure left; it looks like you didn't fix gcc.dg/vla-5.c correctly.

-Eli

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