http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52129
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2012-02-06
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
Ever Confirmed|0 |1
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-06
09:46:59 UTC ---
Created attachment 26580
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26580
gcc47-pr52129.patch
Untested fix.
Seems on this testcase pretend_args_size is non-zero, and argblock is
initialized for sibcall sequences as:
argblock = crtl->args.internal_arg_pointer;
argblock
#ifdef STACK_GROWS_DOWNWARD
= plus_constant (argblock, crtl->args.pretend_args_size);
#else
= plus_constant (argblock, -crtl->args.pretend_args_size);
#endif
and what is stored into stored_args_map is relative to that argblock
(arg->locate.slot_offset.constant based), while the testing is done with
offsets relative to crtl->args.internal_arg_pointer.
