------- Comment #5 from jakub at gcc dot gnu dot org 2008-09-09 09:08 -------
Indeed, MEM_SIZE is the cause.
--- gcc/function.c.jj 2008-09-08 09:33:51.000000000 +0200
+++ gcc/function.c 2008-09-09 10:59:15.000000000 +0200
@@ -2332,6 +2332,11 @@ assign_parm_find_stack_rtl (tree parm, s
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)));
boundary = data->locate.boundary;
align = BITS_PER_UNIT;
gives:
@@ -159,13 +159,13 @@ Fcall_process:
ld 9,0(9) # specpdl,
ld 11,0(11) # specpdl_ptr,
addis 5,31,0x1 #,,
- lwz 6,1492(5) # nargs,
- std 9,1272(5) # specpdl.19,
- li 9,16 # iftmp.21,
std 3,1488(5) # nargs, nargs
std 4,1496(5) # args, args
- cmpwi 7,6,3 #, tmp309,
+ std 9,1272(5) # specpdl.19,
std 11,1280(5) # specpdl_ptr.17,
+ li 9,16 # iftmp.21,
+ lwz 6,1492(5) # nargs,
+ cmpwi 7,6,3 #, tmp309,
ble 7,.L3 #
addi 9,6,-2 # tmp310, tmp5,
extsw 9,9 # tmp311, tmp310
--
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|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2008-09-09 09:08:23
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37408
