Merge lp:~ramana/gcc-linaro/fix-lp-744754-46 into lp:gcc-linaro/4.6

[Ramana Radhakrishnan]

This is essentially a re-merge of https://code.launchpad.net/~cltang/gcc-linaro/lp-744754-neon-ice/+merge/58645 for the 4.6 branch.

Would like this tested once and then merged in.

cheers
Ramana

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[Ulrich Weigand (uweigand)]

This is OK.

review: Approve

=== modified file 'ChangeLog.linaro'
--- ChangeLog.linaro	2011-06-28 12:02:27 +0000
+++ ChangeLog.linaro	2011-06-29 09:23:34 +0000
@@ -1,3 +1,12 @@
[phone]  Ramana Radhakrishnan  <[e-mail]>
+
+	Backport from mainline.
+	LP 744754
+        2011-04-17  Chung-Lin Tang  <[e-mail]>
+
+	* config/arm/arm.c (neon_struct_mem_operand):
+	Support POST_INC/PRE_DEC memory operands.
+
 2011-06-28  Ramana Radhakrishnan  <[e-mail]>
 
 	Backport from mainline.

=== modified file 'gcc/config/arm/arm.c'
--- gcc/config/arm/arm.c	2011-06-27 22:14:07 +0000
+++ gcc/config/arm/arm.c	2011-06-29 09:23:34 +0000
@@ -9357,6 +9357,11 @@
   if (GET_CODE (ind) == REG)
     return arm_address_register_rtx_p (ind, 0);
 
+  /* vldm/vstm allows POST_INC (ia) and PRE_DEC (db).  */
+  if (GET_CODE (ind) == POST_INC
+      || GET_CODE (ind) == PRE_DEC)
+    return arm_address_register_rtx_p (XEXP (ind, 0), 0);
+
   return FALSE;
 }