https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101750
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2021-08-03
CC| |tnfchris at gcc dot gnu.org
Priority|P3 |P1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
On x86_64 the testcase is optimized to the following now:
int main ()
{
float d$b;
float l$c;
float l$b;
float k$c;
float k$b;
<bb 2> [local count: 1073741824]:
k$b_4 ={v} MEM[(const struct a &)0B].b;
__builtin_trap ();
}
not sure how we conclude that 'n' is not written to anywhere. The issue
persists even when I rename 'main' to 'foo' (when it's 'main' we could indeed
conclude so).
