https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99862
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #7)
> (In reply to Zhendong Su from comment #2)
> > [659] % gcctk -O1 -S -o O1.s small.c
> > [660] % gcctk -O3 -S -o O3.s small.c
> > [661] %
> > [661] % wc O1.s O3.s
> > 40 86 599 O1.s
> > 68 138 1047 O3.s
> > 108 224 1646 total
> > [662] %
> > [662] % grep foo O1.s
> > [663] % grep foo O3.s
> > call foo
> > [664] %
> > [664] % cat small.c
> > extern void foo(void);
> > int a, b, *c;
> > static void d(int f) {
> > if (f)
> > foo();
> > }
> > static int e(int f) {
> > int g[] = {2, 8, 2, 8, 2, 8, 2, 8, 2, 8, 2};
> > int h[60];
> > h[0] = g != c;
> > if (b)
> > while (a) {
> > int *i[1] = {&h[6]};
> > }
> > return f;
> > }
> > static int *j(int *p) { return 0; }
> > int main () {
> > int m = e(0);
> > d(m);
> > int l[8];
> > if (j(l))
> > while (1)
> > ;
> > return 0;
> > }
>
> This is a case similar to PR99991, we create a IPA CP clone and fail to
> inline
> that at -O3 while we are happy to IPA inline e() at -O1.
I filed PR99993 for it.
For the future please open separate bugs for separate testcases.
