http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57407

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
> gcc-4.6 -S t.c -O3 -Wall
t.c: In function 'main':
t.c:6:11: warning: 'e' is used uninitialized in this function [-Wuninitialized]
> gcc-4.7 -S t.c -O3 -Wall
t.c: In function 'main':
t.c:6:11: warning: 'e' is used uninitialized in this function [-Wuninitialized]
> gcc-4.8 -S t.c -O3 -Wall
t.c: In function 'main':
t.c:6:11: warning: 'e' is used uninitialized in this function [-Wuninitialized]
     printf("%d\n",e);
           ^

thus, works for me.

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