mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-19 13:44:05 +02:00
94266d6389
git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4038 3c298f89-4303-0410-b956-a3cf2f4a3e73
43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
The 30_all_gcc34-arm-ldm-peephole.patch from Debian was conflicting
|
|
with the newer 36_all_pr16201-fix.patch, so i cut out the hunk from
|
|
it that was causing problems and grabbed an updated version from
|
|
upstream cvs.
|
|
|
|
Index: gcc/config/arm/arm.c
|
|
===================================================================
|
|
RCS file: /cvsroot/gcc/gcc/gcc/config/arm/arm.c,v
|
|
retrieving revision 1.432
|
|
retrieving revision 1.433
|
|
diff -u -r1.432 -r1.433
|
|
--- gcc-3.4.4/gcc/config/arm/arm.c 29 Mar 2005 03:00:23 -0000 1.432
|
|
+++ gcc-3.4.4/gcc/config/arm/arm.c 1 Apr 2005 11:02:22 -0000 1.433
|
|
@@ -5139,6 +5139,10 @@
|
|
int
|
|
adjacent_mem_locations (rtx a, rtx b)
|
|
{
|
|
+ /* We don't guarantee to preserve the order of these memory refs. */
|
|
+ if (volatile_refs_p (a) || volatile_refs_p (b))
|
|
+ return 0;
|
|
+
|
|
if ((GET_CODE (XEXP (a, 0)) == REG
|
|
|| (GET_CODE (XEXP (a, 0)) == PLUS
|
|
&& GET_CODE (XEXP (XEXP (a, 0), 1)) == CONST_INT))
|
|
@@ -5178,6 +5182,17 @@
|
|
return 0;
|
|
|
|
val_diff = val1 - val0;
|
|
+
|
|
+ if (arm_ld_sched)
|
|
+ {
|
|
+ /* If the target has load delay slots, then there's no benefit
|
|
+ to using an ldm instruction unless the offset is zero and
|
|
+ we are optimizing for size. */
|
|
+ return (optimize_size && (REGNO (reg0) == REGNO (reg1))
|
|
+ && (val0 == 0 || val1 == 0 || val0 == 4 || val1 == 4)
|
|
+ && (val_diff == 4 || val_diff == -4));
|
|
+ }
|
|
+
|
|
return ((REGNO (reg0) == REGNO (reg1))
|
|
&& (val_diff == 4 || val_diff == -4));
|
|
}
|