Re: [PATCH, TESTSUITE]: Fix extra testsuite failures with -fpic/-fPIC.

["Kaveh R. Ghazi" <ghazi at caip dot rutgers dot edu>]

From: "Dominique Dhumieres" <dominiq@lps.ens.fr>

> Kaveh,
>
> I don't see the failures you report on Darwin and, if I recall correctly,
> Darwin uses -fpic as default, isn't it?

No I believe Darwin is -fpie by default, or accomplishes something similar 
through its notion of whether functions bind locally.



> ! { dg-final { scan-tree-dump-times "= f\(\)" 0 "optimized" } }
>
> should be
>
> ! { dg-final { scan-tree-dump-times "= f \(\)" 0 "optimized" } }
>
> and the tests cannot fail since there is no "f()" in the *.original file

That is indeed a pickle, but it's unrelated to my issue.  You can see the 
failures I'm getting for -fpic/-fPIC here:

http://gcc.gnu.org/ml/gcc-testresults/2009-08/msg02222.html

The function 'f' is not inlined for me on x86_64-linux-gnu with -fpic:

<bb 2>:
 D.1553_2 = f ();

I think what may be happening is that, for the pattern above, tcl is 
interpreting the parentheses as regex special characters and then they 
evaluate to an empty regex.  So the pattern here reduces to "= f" which does 
the job (by accident).  It may be a backslash issue, I don't know if you 
need to add or remove slashes...

Anyway, I believe my patch is still correct.  If you or Paul want to figure 
out and fix the regex to match the parens and whitespace that can be done 
separately.

       Regards,
       --Kaveh