re PR tree-optimization/91063 (ICE in set_vinfo_for_stmt, at tree-vectorizer.c:676)

	PR tree-optimization/91063
	* tree-vect-stmts.c (vect_init_vector): Call gsi_remove to remove
	stmt from stmts sequence before calling vect_init_vector_1.
	Formatting fix.

	* gcc.dg/gomp/pr91063.c: New test.

From-SVN: r273041

gcc/ChangeLog

+2019-07-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/91063
+	* tree-vect-stmts.c (vect_init_vector): Call gsi_remove to remove
+	stmt from stmts sequence before calling vect_init_vector_1.
+	Formatting fix.
+
 2019-07-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	PR target/88833

gcc/testsuite/ChangeLog

+2019-07-04  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/91063
+	* gcc.dg/gomp/pr91063.c: New test.
+
 2019-07-04  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	PR target/88833

gcc/testsuite/gcc.dg/gomp/pr91063.c

+/* PR tree-optimization/91063 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fopenmp-simd" } */
+/* { dg-additional-options "-mavx512f" { target { i?86-*-* x86_64-*-* } } } */
+
+struct S { void *s; };
+
+int
+foo (struct S *x)
+{
+  int r = 0;
+  int i;
+#pragma omp simd reduction (+ : r)
+  for (i = 0; i < 64; ++i)
+    r += (int) (x->s != 0);
+  return r;
+}

gcc/tree-vect-stmts.c

@@ -1496,8 +1496,12 @@ vect_init_vector (stmt_vec_info stmt_info, tree val, tree type,
 		   promotion of invariant/external defs.  */
 		val = gimple_convert (&stmts, TREE_TYPE (type), val);
 	      for (gimple_stmt_iterator gsi2 = gsi_start (stmts);
-		   !gsi_end_p (gsi2); gsi_next (&gsi2))
-		vect_init_vector_1 (stmt_info, gsi_stmt (gsi2), gsi);
+		   !gsi_end_p (gsi2); )
+		{
+		  init_stmt = gsi_stmt (gsi2);
+		  gsi_remove (&gsi2, false);
+		  vect_init_vector_1 (stmt_info, init_stmt, gsi);
+		}
 	    }
 	}
       val = build_vector_from_val (type, val);