[cfe-dev] cpp difference between gcc and clang?

[Joel Sherrill]

On 07/07/2011 11:06 AM, Argyrios Kyrtzidis wrote:
> Please file a bug report.
>
Done.

http://llvm.org/bugs/show_bug.cgi?id=10298

Thanks.

--joel
> -Argiris
>
> On Jul 7, 2011, at 7:49 AM, Joel Sherrill wrote:
>
>> Hi,
>>
>> RTEMS uses preprocessed assembly files (.S).
>> I have a small test case which compiles
>> with i386 gcc and not with clang from the svn
>> head.
>>
>> ========================
>> #define __USER_LABEL_PREFIX__
>> #define EXPAND0(x) x
>> #define CONCAT0(a,b) EXPAND0(a)EXPAND0(b)
>>
>> #define SYM(x) CONCAT0 (__USER_LABEL_PREFIX__, x)
>>
>>          .text
>>
>> .set RUNCONTEXT_ARG,   4                   /* save context argument */
>> .set HEIRCONTEXT_ARG,  8                   /* restore context argument */
>>
>> SYM(_label):
>>      nop
>> ========================
>>
>> $ clang -c set_asm.S
>> /tmp/cc-Y6Q2YB.s:14:24: error: unexpected token in assignment
>> .set HEIRCONTEXT_ARG, 8_label:
>>
>> This is a cut down and if I simplify it much more,
>> it works.
>>
>> -- 
>> Joel Sherrill, Ph.D.             Director of Research&   Development
>> joel.sherrill at OARcorp.com        On-Line Applications Research
>> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>>     Support Available             (256) 722-9985
>>
>>
>> _______________________________________________
>> cfe-dev mailing list
>> cfe-dev at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev


-- 
Joel Sherrill, Ph.D.             Director of Research&  Development
joel.sherrill at OARcorp.com        On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
    Support Available             (256) 722-9985