From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 22 Dec 2016 11:48:39 +0000 (+0100)
Subject: re PR middle-end/78858 (Bogus -Wnonnull warning involving strcmp with -fsanitize... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=35dddc5327d6d188da70a786105a796ffe201665;p=gcc.git

re PR middle-end/78858 (Bogus -Wnonnull warning involving strcmp with -fsanitize=undefined)

	PR middle-end/78858
	* c-c++-common/ubsan/pr78858.c: New test.
	* gcc.dg/nonnull-5.c: New test.

From-SVN: r243884
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3a704c58537..33908d5e803 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2016-12-22  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/78858
+	* c-c++-common/ubsan/pr78858.c: New test.
+	* gcc.dg/nonnull-5.c: New test.
+
 2016-12-21  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/72707
diff --git a/gcc/testsuite/c-c++-common/ubsan/pr78858.c b/gcc/testsuite/c-c++-common/ubsan/pr78858.c
new file mode 100644
index 00000000000..ad0af42caca
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/ubsan/pr78858.c
@@ -0,0 +1,10 @@
+/* PR middle-end/78858 */
+/* { dg-do compile } */
+/* { dg-options "-fsanitize=undefined -Wnonnull" } */
+
+void
+foo (char **x, const char *y)
+{
+  *x = (char *) __builtin_malloc (__builtin_strlen (y) + 1);	/* { dg-bogus "argument 1 null where non-null expected" } */
+  __builtin_strcpy (*x, y);
+}
diff --git a/gcc/testsuite/gcc.dg/nonnull-5.c b/gcc/testsuite/gcc.dg/nonnull-5.c
new file mode 100644
index 00000000000..ba52fe3dbce
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/nonnull-5.c
@@ -0,0 +1,11 @@
+/* Reduced from https://sourceware.org/bugzilla/show_bug.cgi?id=20978 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -Wnonnull" } */
+
+int
+foo (const char *name)
+{
+  if (name)
+    return 6;
+  return __builtin_strlen (name);	/* { dg-warning "argument 1 null where non-null expected" } */
+}