From b17e1a867d63046b9aac4b3a046e951acaacff86 Mon Sep 17 00:00:00 2001
From: David Malcolm <dmalcolm@redhat.com>
Date: Tue, 19 May 2020 10:45:19 -0400
Subject: [PATCH 149/179] FIXME: handle NULL original type in
 maybe_fold_unaryop

---
 gcc/analyzer/region-model2.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gcc/analyzer/region-model2.cc b/gcc/analyzer/region-model2.cc
index 6eb8b844080..5533860e767 100644
--- a/gcc/analyzer/region-model2.cc
+++ b/gcc/analyzer/region-model2.cc
@@ -2790,8 +2790,9 @@ region_model2_manager::maybe_fold_unaryop (tree type, enum tree_code op,
 					   const svalue2 *arg)
 {
   /* Handle redundant casts.  */
-  if (op == NOP_EXPR && useless_type_conversion_p (arg->get_type (), type))
-    return arg;
+  if (op == NOP_EXPR)
+    if (arg->get_type () && useless_type_conversion_p (arg->get_type (), type))
+      return arg;
 
   /* Constants.  */
   if (tree cst = arg->maybe_get_constant ())
-- 
2.21.0