re PR middle-end/89677 (internal compiler error: in wide_int_to_tree_1, at tree.c:1549)

2019-03-13  Richard Biener  <rguenther@suse.de>

	PR middle-end/89677
	* tree-scalar-evolution.c (simplify_peeled_chrec): Do not
	throw FP expressions at tree-affine.

	* gcc.dg/torture/pr89677.c: New testcase.

From-SVN: r269646

gcc/ChangeLog

+2019-03-13  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/89677
+	* tree-scalar-evolution.c (simplify_peeled_chrec): Do not
+	throw FP expressions at tree-affine.
+
 2019-03-14  Richard Biener  <rguenther@suse.de>
 
 	* tree-pretty-print.c (dump_generic_node): For -gimple properly

gcc/testsuite/ChangeLog

+2019-03-13  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/89677
+	* gcc.dg/torture/pr89677.c: New testcase.
+
 2019-03-13  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/85558

gcc/testsuite/gcc.dg/torture/pr89677.c

+/* { dg-do compile } */
+/* { dg-require-effective-target int32plus } */
+
+int a, b, d;
+unsigned c;
+float e, f, g;
+void h() {
+    float *i = &g;
+    for (; c < 10; c += 3)
+      for (; d; d += 3) {
+	  a = *i;
+	  g = f + 0;
+	  f = b + *i + (b - e + 305219) + -b + 3;
+      }
+}

gcc/tree-scalar-evolution.c

@@ -1456,6 +1456,11 @@ simplify_peeled_chrec (struct loop *loop, tree arg, tree init_cond)
       return build_polynomial_chrec (loop->num, init_cond, right);
     }
 
+  /* The affine code only deals with pointer and integer types.  */
+  if (!POINTER_TYPE_P (type)
+      && !INTEGRAL_TYPE_P (type))
+    return chrec_dont_know;
+
   /* Try harder to check if they are equal.  */
   tree_to_aff_combination_expand (left, type, &aff1, &peeled_chrec_map);
   tree_to_aff_combination_expand (step_val, type, &aff2, &peeled_chrec_map);