From: Marek Polacek <polacek@redhat.com>
Date: Mon, 16 Feb 2015 11:16:33 +0000 (+0000)
Subject: re PR c/65066 (ICE: Segmentation fault with -Wformat=2)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3d5cb23da1ea830d33eea2a1a19912ee7dd63c45;p=gcc.git

re PR c/65066 (ICE: Segmentation fault with -Wformat=2)

	PR c/65066
	* c-format.c (check_format_types): Handle null param.

	* gcc.dg/pr65066.c: New test.

From-SVN: r220732
---

diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 804c1db9ba8..45261cd24e0 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,8 @@
+2015-02-16  Marek Polacek  <polacek@redhat.com>
+
+	PR c/65066
+	* c-format.c (check_format_types): Handle null param.
+
 2015-02-13  Marek Polacek  <polacek@redhat.com>
 
 	PR c/65040
diff --git a/gcc/c-family/c-format.c b/gcc/c-family/c-format.c
index 2f49b2d2d5c..9d03ff03834 100644
--- a/gcc/c-family/c-format.c
+++ b/gcc/c-family/c-format.c
@@ -2492,6 +2492,7 @@ check_format_types (location_t loc, format_wanted_type *types)
 	  && TREE_CODE (cur_type) == INTEGER_TYPE
 	  && warn_format_signedness
 	  && TYPE_UNSIGNED (wanted_type)
+	  && cur_param != NULL_TREE
 	  && TREE_CODE (cur_param) == NOP_EXPR)
 	{
 	  tree t = TREE_TYPE (TREE_OPERAND (cur_param, 0));
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 01dc0725688..edbb95d5618 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-02-16  Marek Polacek  <polacek@redhat.com>
+
+	PR c/65066
+	* gcc.dg/pr65066.c: New test.
+
 2015-02-16  Ilya Enkovich  <ilya.enkovich@intel.com>
 
 	* gcc.dg/pr65002.C: Move ...
diff --git a/gcc/testsuite/gcc.dg/pr65066.c b/gcc/testsuite/gcc.dg/pr65066.c
new file mode 100644
index 00000000000..883a87d4131
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr65066.c
@@ -0,0 +1,12 @@
+/* PR c/65066 */
+/* { dg-do compile } */
+/* { dg-options "-Wformat=2" } */
+
+extern int sscanf (const char *restrict, const char *restrict, ...);
+int *a;
+
+void
+foo ()
+{
+  sscanf (0, "0x%x  #", a); /* { dg-warning "expects argument of type" } */
+}