This patch fixes a compile-time regression that was originally introduced by the…

This patch fixes a compile-time regression that was originally introduced by the fix for PR64111, in GCC 4.9.3.

This patch fixes a compile-time regression that was originally
introduced by the fix for PR64111, in GCC 4.9.3.
gcc/ChangeLog:

2015-10-23  Caroline Tice  <cmtice@google.com>

        (from Richard Biener)
        * tree.c (int_cst_hasher::hash):  Replace XOR with more efficient
        call to iterative_hash_host_wide_int.

From-SVN: r229277

gcc/ChangeLog

+2015-10-23  Caroline Tice  <cmtice@google.com>
+
+	(from Richard Biener
+	* tree.c (int_cst_hasher::hash):  Replace XOR with more efficient
+	call to iterative_hash_host_wide_int.
+
 2015-10-23  David Edelsohn  <dje.gcc@gmail.com>
 
 	* config.gcc (powerpc-ibm-aix[6789]) [default_use_cxa_atexit]:

gcc/tree.c

@@ -1364,7 +1364,7 @@ int_cst_hasher::hash (tree x)
   int i;
 
   for (i = 0; i < TREE_INT_CST_NUNITS (t); i++)
-    code ^= TREE_INT_CST_ELT (t, i);
+    code = iterative_hash_host_wide_int (TREE_INT_CST_ELT(t, i), code);
 
   return code;
 }