https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108802
Bug ID: 108802
Summary: missed inlining of call via pointer to member function
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: pobrn at protonmail dot com
Target Milestone: ---
See https://gcc.godbolt.org/z/j833EGfGY
struct A {
int f(int x) { return 2 * x; }
};
int f1() {
A a;
return [&](auto&& f) { return (a.*f)(42); } (&A::f);
}
clang optimizes `f1()` to `return 84`, but gcc does not do so. This seems to
have been changed somewhere between gcc 9 and 10 because 9.5 does the inlining
but 10.1 does not do it.
