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

Upstream-Status: Backport
Signed-off-by: Khem Raj <raj.khem@gmail.com>

Index: gcc-4.8.1/gcc/config/rs6000/rs6000.c
===================================================================
--- gcc-4.8.1.orig/gcc/config/rs6000/rs6000.c	2013-05-09 18:54:06.000000000 -0700
+++ gcc-4.8.1/gcc/config/rs6000/rs6000.c	2013-06-27 08:22:40.459021366 -0700
@@ -5431,11 +5431,12 @@
 
     case TFmode:
     case TDmode:
-    case TImode:
       if (TARGET_E500_DOUBLE)
 	return (SPE_CONST_OFFSET_OK (offset)
 		&& SPE_CONST_OFFSET_OK (offset + 8));
+        /* Fall through.  */
 
+    case TImode:
       extra = 8;
       if (!worst_case)
 	break;
