This backports fix from http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57717

Upstream-Status: Backport
Signed-off-by: Julian Brown <Julian_Brown@mentor.com>
[Gustavo: Update for gcc 4.8.3]

fix for PR57717 (PowerPC E500v2)
http://gcc.gnu.org/ml/gcc-patches/2013-08/msg00668.html

diff -Nura gcc-4.8.3/gcc/config/rs6000/rs6000.c gcc-4.8.3-pr57717/gcc/config/rs6000/rs6000.c
--- gcc-4.8.3/gcc/config/rs6000/rs6000.c	2014-05-04 23:18:35.000000000 -0300
+++ gcc-4.8.3-pr57717/gcc/config/rs6000/rs6000.c	2014-05-22 15:20:12.554270919 -0300
@@ -7343,9 +7343,7 @@
       && GET_CODE (XEXP (x, 1)) == CONST_INT
       && reg_offset_p
       && !SPE_VECTOR_MODE (mode)
-      && !(TARGET_E500_DOUBLE && (mode == DFmode || mode == TFmode
-				  || mode == DDmode || mode == TDmode
-				  || mode == DImode))
+      && !(TARGET_E500_DOUBLE && GET_MODE_SIZE (mode) > UNITS_PER_WORD)
       && (!VECTOR_MODE_P (mode) || VECTOR_MEM_NONE_P (mode)))
     {
       HOST_WIDE_INT val = INTVAL (XEXP (x, 1));