https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116821
Bug ID: 116821
Summary: phiprop could be improved to handle PHI<&a, ssa_name>
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: enhancement
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
Noticed while looking into PR 116819.
Take the following C++ code :
```
const unsigned &max_1(const unsigned &d,
const unsigned &e) {
if (d < e)
return e;
return d;
}
unsigned g(unsigned *f) {
return max_1(f[0], 70);
}
```
Where in phiopt1 we should to able to get a MAX_EXPR . But currently it is not
until phiopt4 we get one. Which might be too late for the vectorizer.
