------- Comment #2 from jakub at gcc dot gnu dot org 2007-12-13 14:38 -------
Not sure this should count as a regression, since in 3.4 this was using
different ABI. If you compile with -mabi=atpcs which matches 3.4, it will work
even in 4.3.
Anyway, I think:
--- gcc/config/arm/arm.c.jj 2007-12-11 00:23:29.000000000 +0100
+++ gcc/config/arm/arm.c 2007-12-13 15:26:01.000000000 +0100
@@ -17765,14 +17765,20 @@ arm_output_load_gr (rtx *operands)
static void
arm_setup_incoming_varargs (CUMULATIVE_ARGS *cum,
- enum machine_mode mode ATTRIBUTE_UNUSED,
- tree type ATTRIBUTE_UNUSED,
+ enum machine_mode mode,
+ tree type,
int *pretend_size,
int second_time ATTRIBUTE_UNUSED)
{
+ int nregs = cum->nregs;
+ if (nregs & 1
+ && ARM_DOUBLEWORD_ALIGN
+ && arm_needs_doubleword_align (mode, type))
+ nregs++;
+
cfun->machine->uses_anonymous_args = 1;
- if (cum->nregs < NUM_ARG_REGS)
- *pretend_size = (NUM_ARG_REGS - cum->nregs) * UNITS_PER_WORD;
+ if (nregs < NUM_ARG_REGS)
+ *pretend_size = (NUM_ARG_REGS - nregs) * UNITS_PER_WORD;
}
/* Return nonzero if the CONSUMER instruction (a store) does not need
should fix this, let me poke around a little bit some more and add a testcase.
I'll need some volunteer to bootstrap/regtest it though, no arms here...
--
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 |2007-12-13 14:38:11
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34281
