1 files changed, 61 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wparentheses-9.c b/gcc/testsuite/gcc.dg/Wparentheses-9.c
new file mode 100644
index 00000000000..0fff6ea1aa3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wparentheses-9.c
@@ -0,0 +1,61 @@
+/* Test operation of -Wparentheses.  Warnings for ambiguous else.  */
+/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
+
+/* { dg-do compile } */
+/* { dg-options "-Wparentheses" } */
+
+int foo (int);
+
+int a, b, c;
+
+int
+bar (void)
+{
+  if (a)
+    foo (0);
+  if (b)
+    foo (1);
+  else
+    foo (2);
+  if (c) /* { dg-warning "ambiguous" "correct warning" } */
+    if (a)
+      foo (3);
+    else
+      foo (4);
+  if (a)
+    if (c)
+      foo (5);
+  if (a)
+    if (b) /* { dg-warning "ambiguous" "correct warning" } */
+      if (c)
+	foo (6);
+      else
+	foo (7);
+  if (a) /* { dg-warning "ambiguous" "correct warning" } */
+    if (b)
+      if (c)
+	foo (8);
+      else
+	foo (9);
+    else
+      foo (10);
+  if (a)
+    if (b)
+      if (c)
+	foo (11);
+      else
+	foo (12);
+    else
+      foo (13);
+  else
+    foo (14);
+  if (a) {
+    if (b)
+      if (c)
+	foo (15);
+      else
+	foo (16);
+    else
+      foo (17);
+  }
+}