re PR tree-optimization/66828 (gcc/tree-ssa-math-opts.c:2182:38: runtime error:…

re PR tree-optimization/66828 (gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of 72057594037927936 by 8 places cannot be represented in type 'long int')

2015-07-28  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    PR tree-optimization/66828
    * tree-ssa-math-opts.c (perform_symbolic_merge): Change type of inc
    from int64_t to uint64_t.

From-SVN: r226298

gcc/ChangeLog

+2015-07-28  Thomas Preud'homme  <thomas.preudhomme@arm.com>
+
+	PR tree-optimization/66828
+	* tree-ssa-math-opts.c (perform_symbolic_merge): Change type of inc
+	from int64_t to uint64_t.
+
 2015-07-28  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 
 	* opts-common.c (read_cmdline_option): List DriverOnly enum values

gcc/tree-ssa-math-opts.c

@@ -2122,7 +2122,7 @@ perform_symbolic_merge (gimple source_stmt1, struct symbolic_number *n1,
      the same base (array, structure, ...).  */
   if (gimple_assign_rhs1 (source_stmt1) != gimple_assign_rhs1 (source_stmt2))
     {
-      int64_t inc;
+      uint64_t inc;
       HOST_WIDE_INT start_sub, end_sub, end1, end2, end;
       struct symbolic_number *toinc_n_ptr, *n_end;