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[Bug debug/38367] [4.1/4.2/4.3/4.4 regression] Wrong debug information for big endian function parameters
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Dec 2008 12:12:27 -0000
- Subject: [Bug debug/38367] [4.1/4.2/4.3/4.4 regression] Wrong debug information for big endian function parameters
- References: <bug-38367-17024@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from jakub at gcc dot gnu dot org 2008-12-03 12:12 -------
I'd say the bug is in assign_parm_find_stack_rtl:
stack_parm = crtl->args.internal_arg_pointer;
if (offset_rtx != const0_rtx)
stack_parm = gen_rtx_PLUS (Pmode, stack_parm, offset_rtx);
stack_parm = gen_rtx_MEM (data->promoted_mode, stack_parm);
set_mem_attributes (stack_parm, parm, 1);
/* set_mem_attributes could set MEM_SIZE to the passed mode's size,
while promoted mode's size is needed. */
if (data->promoted_mode != BLKmode
&& data->promoted_mode != DECL_MODE (parm))
set_mem_size (stack_parm, GEN_INT (GET_MODE_SIZE (data->promoted_mode)));
In addition to setting MEM_SIZE it should also set MEM_OFFSET.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2008-12-02 20:24:57 |2008-12-03 12:12:26
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38367