re PR tree-optimization/62075 (Vectorizer ICE on dolphin)

2014-08-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/62075
	* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Properly
	handle uses in patterns.

	* gcc.dg/vect/pr62075.c: New testcase.

From-SVN: r213815

gcc/ChangeLog

+2014-08-11  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/62075
+	* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Properly
+	handle uses in patterns.
+
 2014-08-11  Alexander Ivchenko  <alexander.ivchenko@intel.com>
 	    Maxim Kuznetsov  <maxim.kuznetsov@intel.com>
 	    Anna Tikhonova  <anna.tikhonova@intel.com>

gcc/testsuite/ChangeLog

+2014-08-11  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/62075
+	* gcc.dg/vect/pr62075.c: New testcase.
+
 2014-08-11  Felix Yang  <fei.yang0953@gmail.com>
 
 	PR tree-optimization/62073

gcc/testsuite/gcc.dg/vect/pr62075.c

+/* { dg-do compile } */
+
+int a[16][2];
+struct A
+{
+  int b[16][2];
+  int c[16][1];
+};
+
+void
+foo (struct A *x)
+{
+  int i;
+  for (i = 0; i < 16; ++i)
+    {
+      x->b[i][0] = a[i][0];
+      x->c[i][0] = 0 != a[i][0];
+      x->b[i][1] = a[i][1];
+    }
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */

gcc/tree-vect-slp.c

@@ -1793,7 +1793,10 @@ vect_detect_hybrid_slp_stmts (slp_tree node)
 	    && (stmt_vinfo = vinfo_for_stmt (use_stmt))
 	    && !STMT_SLP_TYPE (stmt_vinfo)
             && (STMT_VINFO_RELEVANT (stmt_vinfo)
-                || VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (stmt_vinfo)))
+                || VECTORIZABLE_CYCLE_DEF (STMT_VINFO_DEF_TYPE (stmt_vinfo))
+		|| (STMT_VINFO_IN_PATTERN_P (stmt_vinfo)
+		    && STMT_VINFO_RELATED_STMT (stmt_vinfo)
+		    && !STMT_SLP_TYPE (vinfo_for_stmt (STMT_VINFO_RELATED_STMT (stmt_vinfo)))))
 	    && !(gimple_code (use_stmt) == GIMPLE_PHI
                  && STMT_VINFO_DEF_TYPE (stmt_vinfo)
                   == vect_reduction_def))