re PR tree-optimization/32421 (-ftree-vectorize -msse2 ICEs in build2_stat when…

re PR tree-optimization/32421 (-ftree-vectorize -msse2 ICEs in build2_stat when vectorizing POINTER_PLUS_EXPR)

2007-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32421
        * tree-vect-transform.c (vectorizable_operation): Convert
        POINTER_PLUS_EXPR over to PLUS_EXPR.


2007-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR tree-opt/32421
        * gcc.dg/vect/pr32421.c: New test.

From-SVN: r126012

gcc/ChangeLog

+2007-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	PR tree-opt/32421
+	* tree-vect-transform.c (vectorizable_operation): Convert
+	POINTER_PLUS_EXPR over to PLUS_EXPR.
+
 2007-06-25  Chao-ying Fu  <fu@mips.com>
 
 	* doc/rtl.texi (Machine Modes): Document QQ, HQ, SQ, DQ, TQ,

gcc/testsuite/ChangeLog

+2007-06-25  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	PR tree-opt/32421
+	* gcc.dg/vect/pr32421.c: New test.
+
 2006-06-26  Simon Martin  <simartin@users.sourceforge.net>
 
 	PR c++/32111

gcc/testsuite/gcc.dg/vect/pr32421.c

+/* { dg-do compile } */
+
+
+int f(int **__restrict a, int ** __restrict b)
+{
+  int i;
+  for(i= 0;i<32;i++)
+    a[i] = b[i] + 1;
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */
+

gcc/tree-vect-transform.c

@@ -2968,6 +2968,12 @@ vectorizable_operation (tree stmt, block_stmt_iterator *bsi, tree *vec_stmt)
 
   operation = GIMPLE_STMT_OPERAND (stmt, 1);
   code = TREE_CODE (operation);
+
+  /* For pointer addition, we should use the normal plus for
+     the vector addition.  */
+  if (code == POINTER_PLUS_EXPR)
+    code = PLUS_EXPR;
+
   optab = optab_for_tree_code (code, vectype);
 
   /* Support only unary or binary operations.  */