https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120608
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Another testcase:
void foo (int *, int *, int *);
void bar (int *, int *, int *);
void
baz (int *, int *, int *)
{
int a = 42, b = -42, c = 0;
foo (&a, &b, &c);
[[gnu::musttail]] return bar (&a, &b, &c);
}
The reason is that we set disable_tailcalls when expanding blocks when there is
epilogue cleanup sequence emitted by asan_emit_stack_protection.
Wonder if clang emits such sequence before the musttail calls instead or what,
will need to investigate. Or maybe doesn't diagnose use after free in
functions calling musttail calls?
