https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117776
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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Keywords| |TREE
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is a reduced testcase for the missed optimization also dealing with
Canonical form here.
```
static inline bool even (unsigned char t)
{
return (t%2) == 0;
}
unsigned char f(unsigned char t)
{
unsigned char y = even(t);
unsigned int l = even(t);
unsigned int l1 = y;
return l1 == l;
}
```
`& 1` is the canonical form even though the cast might look better because
logical operators are better at being handled than casts (especially casts to
bool).
