1 files changed, 24 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Wsequence-point-pr18050.c b/gcc-4.9/gcc/testsuite/gcc.dg/Wsequence-point-pr18050.c
new file mode 100644
index 000000000..63aecd0f3
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/Wsequence-point-pr18050.c
@@ -0,0 +1,24 @@
+/* PR 18050 : bogus warning with -Wsequence-point */
+/* { dg-do compile } */
+/* { dg-options "-Wsequence-point" } */
+
+struct x
+{
+  int i;
+};
+void bar(struct x*, int *);
+
+void foo(struct x *y)
+{
+  bar(y++, &y->i); /* { dg-warning "operation on 'y' may be undefined" } */
+}
+
+void zz(int a, int *b)
+{
+  *b = a;
+}
+
+void baz(void) {
+  int a = 5;
+  zz(++a, &a);  /* { dg-bogus "operation on 'a' may be undefined" } */
+}