https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46119
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2021-08-08
Known to work| |4.8.0, 4.8.5
Summary|-fsplit-stack |-fsplit-stack - code
|-fstack-protector-all - |crashes when passing large
|code crashes when passing |struct via stack
|large struct via stack |
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Known to fail| |4.9.0
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
-fsplit-stack is enough. It worked in GCC 4.7.x and 4.8.x but broke again in
4.9.0.
The one where it worked main had (clang also has this):
leaq -32776(%rsp), %r11
cmpq %fs:112, %r11
jae .L6
The one where it fails has:
leaq -16392(%rsp), %r11
cmpq %fs:112, %r11
