https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117243
--- Comment #7 from Ye Xiong <bouncy12578 at gmail dot com> ---
(In reply to Ye Xiong from comment #6)
> (In reply to Sam James from comment #1)
> > Trunk works.
>
> When param b is unsigned, trunk will crash.
The original reduced file is:
#include <stdint.h>
void foo(uint32_t a, uint8_t b)
{
int i, j;
lbl:
for (b = 0; (b <= 7); b += 1)
{
uint8_t c[1][1];
int i, j, k;
for (i = 0; i < 1; i++)
{
for (j = 0; j < 1; j++)
{
c[i][j] = 1;
}
}
if (b)
goto lbl;
}
}
int main() {
foo(1, 2);
}
this version will crash on -O3 or higher on trunk version, we reduced a bit
more but seems the bug would eliminate on trunk version.
