PR c/69661 - missing -Wsequence-point warning

gcc/testsuite.ChangeLog:
        * c-c++-common/Wsequence-point-2.c: New test.

From-SVN: r268504

gcc/testsuite/ChangeLog

 2019-02-03  Martin Sebor  <msebor@redhat.com>
 
+	PR c/69661
+	* c-c++-common/Wsequence-point-2.c: New test.
+
 	PR c++/44648
 	* g++.dg/warn/Wunused-var-35.C: New test.
 

gcc/testsuite/c-c++-common/Wsequence-point-2.c

+/* PR c/69661 - missing -Wsequence-point warning
+   { dg-do compile }
+   { dg-options "-Wall" } */
+
+int a, b;
+short c;
+
+void fn1 (int p) { (void)p; }
+
+void fn2 (void)
+{
+  fn1(a == (c &= a = b));   /* { dg-warning "\\\[-Wsequence-point\\\]" } */
+}