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

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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 73b62b2..86e210b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+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

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2439836..a61b668 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+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

diff --git a/gcc/testsuite/gcc.dg/torture/pr89677.c b/gcc/testsuite/gcc.dg/torture/pr89677.c
new file mode 100644 (file)
index 0000000..a45ca1f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr89677.c
@@ -0,0 +1,15 @@
+/* { 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;
+      }
+}

diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c
index 3de5590..c814437 100644 (file)
--- a/gcc/tree-scalar-evolution.c
+++ b/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);