tree-vect-transform.c (vect_create_epilog_for_reduction): Set…

tree-vect-transform.c (vect_create_epilog_for_reduction): Set BIT_FIELD_REF_UNSIGNED for newly created BIT_FIELD_REFs.

	* tree-vect-transform.c (vect_create_epilog_for_reduction): Set
        BIT_FIELD_REF_UNSIGNED for newly created BIT_FIELD_REFs.

From-SVN: r102913

gcc/ChangeLog

+2005-08-09  Dorit Nuzman  <dorit@il.ibm.com>
+
+	* tree-vect-transform.c (vect_create_epilog_for_reduction): Set 
+	BIT_FIELD_REF_UNSIGNED for newly created BIT_FIELD_REFs.
+
 2005-08-09  Richard Guenther  <rguenther@suse.de>
 
 	* c-common.c (builtin_function_2): Remove.

gcc/testsuite/ChangeLog

+2005-08-09  Dorit Nuzman  <dorit@il.ibm.com>
+
+	* gcc.dg/vect/vect-reduc-1char.c: Reverse last change - change
+	input data back to what it was originally.
+
 2005-08-09  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	* objc.dg/try-catch-8.m: Enable for all targets.

gcc/testsuite/gcc.dg/vect/vect-reduc-1char.c

@@ -4,13 +4,13 @@
 #include "tree-vect.h"
 
 #define N 16
-#define DIFF 122
+#define DIFF 242
 
 void
 main1 (unsigned char x, unsigned char max_result, unsigned char min_result)
 {
   int i;
-  unsigned char ub[N] = {1,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
+  unsigned char ub[N] = {1,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
   unsigned char uc[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
   unsigned char udiff = 2;
   unsigned char umax = x;

gcc/tree-vect-transform.c

@@ -1021,9 +1021,12 @@ vect_create_epilog_for_reduction (tree vect_def, tree stmt, tree reduction_op,
 	     && (integer_zerop (scalar_initial_def) 
 		 || real_zerop (scalar_initial_def)))
 	    {
-	      epilog_stmt = build2 (MODIFY_EXPR, scalar_type, new_scalar_dest,
-                                build3 (BIT_FIELD_REF, scalar_type,
-                                	vec_temp, bitsize, bitsize_zero_node));
+	      tree rhs = build3 (BIT_FIELD_REF, scalar_type, vec_temp, bitsize,
+				 bitsize_zero_node);
+
+	      BIT_FIELD_REF_UNSIGNED (rhs) = TYPE_UNSIGNED (scalar_type);
+	      epilog_stmt = build2 (MODIFY_EXPR, scalar_type, new_scalar_dest, 
+				    rhs);
               new_temp = make_ssa_name (new_scalar_dest, epilog_stmt);
               TREE_OPERAND (epilog_stmt, 0) = new_temp;
               bsi_insert_after (&exit_bsi, epilog_stmt, BSI_NEW_STMT);
@@ -1043,10 +1046,12 @@ vect_create_epilog_for_reduction (tree vect_def, tree stmt, tree reduction_op,
 	       bit_offset += element_bitsize)
 	    { 
 	      tree bitpos = bitsize_int (bit_offset);
-
+	      tree rhs = build3 (BIT_FIELD_REF, scalar_type, vec_temp, bitsize,
+				 bitpos);
+		
+	      BIT_FIELD_REF_UNSIGNED (rhs) = TYPE_UNSIGNED (scalar_type);
 	      epilog_stmt = build2 (MODIFY_EXPR, scalar_type, new_scalar_dest,
-				build3 (BIT_FIELD_REF, scalar_type,
-					vec_temp, bitsize, bitpos));
+				    rhs);	
 	      new_name = make_ssa_name (new_scalar_dest, epilog_stmt);
 	      TREE_OPERAND (epilog_stmt, 0) = new_name;
 	      bsi_insert_after (&exit_bsi, epilog_stmt, BSI_NEW_STMT);
@@ -1074,6 +1079,8 @@ vect_create_epilog_for_reduction (tree vect_def, tree stmt, tree reduction_op,
   
   if (extract_scalar_result)
     {
+      tree rhs;
+
       if (vect_print_dump_info (REPORT_DETAILS))
 	fprintf (vect_dump, "extract scalar result");
 
@@ -1085,9 +1092,9 @@ vect_create_epilog_for_reduction (tree vect_def, tree stmt, tree reduction_op,
       else
 	bitpos = bitsize_zero_node;
 
-      epilog_stmt = build2 (MODIFY_EXPR, scalar_type, new_scalar_dest,
-		     build3 (BIT_FIELD_REF, scalar_type,
-			     new_temp, bitsize, bitpos));
+      rhs = build3 (BIT_FIELD_REF, scalar_type, new_temp, bitsize, bitpos);
+      BIT_FIELD_REF_UNSIGNED (rhs) = TYPE_UNSIGNED (scalar_type);
+      epilog_stmt = build2 (MODIFY_EXPR, scalar_type, new_scalar_dest, rhs);
       new_temp = make_ssa_name (new_scalar_dest, epilog_stmt);
       TREE_OPERAND (epilog_stmt, 0) = new_temp; 
       bsi_insert_after (&exit_bsi, epilog_stmt, BSI_NEW_STMT);