https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101892
Bug ID: 101892
Summary: -fzero-call-used-regs does not work for sibling-calls
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
While looking into PR 101891, I Noticed this.
Take:
int g(int);
int f1(int y)
{
const bool x = y % 100 == 0;
return g(y % (x ? 16 : 4) == 0);
}
--------------------------------
Without -fno-optimize-sibling-calls, -fzero-call-used-regs=all does nothing.
