From: aldyh <aldyh@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 4 Nov 2019 19:52:15 +0000 (+0000)
Subject: Handle VR_UNDEFINED in value_range_base::normalize_addresses().
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7828b10ef86314ec394a74aa8359b4a4d1b2d01b;p=thirdparty%2Fgcc.git

Handle VR_UNDEFINED in value_range_base::normalize_addresses().

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@277791 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dd1b042a4701..d45d4fc786d5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2019-11-04  Aldy Hernandez  <aldyh@redhat.com>
+
+	* tree-vrp.c (value_range_base::normalize_addresses): Handle
+	VR_UNDEFINED.
+
 2019-11-04  Aldy Hernandez  <aldyh@redhat.com>
 
 	* tree-vrp.c (dump_assert_info): New.
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
index 7c35802dacc1..c0c1e87a2590 100644
--- a/gcc/tree-vrp.c
+++ b/gcc/tree-vrp.c
@@ -6130,6 +6130,9 @@ value_range::union_ (const value_range *other)
 value_range_base
 value_range_base::normalize_addresses () const
 {
+  if (undefined_p ())
+    return *this;
+
   if (!POINTER_TYPE_P (type ()) || range_has_numeric_bounds_p (this))
     return *this;