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.