[Bug tree-optimization/95404] Failure to optimize compare to power of 2 and bitwise and to more direct bitwise and

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95404

Andrew Pinski  changed:

   What|Removed |Added

 Ever confirmed|0   |1
   Last reconfirmed||2021-08-07
 Status|UNCONFIRMED |NEW

--- Comment #1 from Andrew Pinski  ---
What is interesting is clang does not even do it for:
int f2(int x)
{
int t = 0;
if ((unsigned)x > 15)
t= false;
else t = ~x;
return t&1;
}

But once you change int to bool, it does .
We might be able to do it for both.

[Bug tree-optimization/95404] Failure to optimize compare to power of 2 and bitwise and to more direct bitwise and

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95404

Andrew Pinski  changed:

   What|Removed |Added

   Severity|normal  |enhancement