optimization/9279: 3.2 regression to 2.95 / 3.0.4 on sparc-linux

[Matthias Klose]

ebotcazou@gcc.gnu.org writes:
>     Could you precise what the self-contained testcase ouputs when compiled with the different versions of gcc ?

the simplified (second) example:

$ gcc-2.95 -O2 fbug2.c && ./a.out
0

$ gcc-3.0 -O2 fbug2.c && ./a.out
0

$ gcc-3.2 -O2 fbug2.c && ./a.out
2

$ gcc-3.2 -O1 fbug2.c && ./a.out
0