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-rw-r--r--gcc/testsuite/c-c++-common/Wimplicit-fallthrough-20.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/Wimplicit-fallthrough-20.c b/gcc/testsuite/c-c++-common/Wimplicit-fallthrough-20.c
new file mode 100644
index 00000000000..d37a840a0d9
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/Wimplicit-fallthrough-20.c
@@ -0,0 +1,41 @@
+/* PR c/7652 */
+/* { dg-do compile } */
+/* { dg-options "-Wimplicit-fallthrough" } */
+
+int
+f (int i)
+{
+ switch (i)
+ {
+ case -1:
+ __attribute__((fallthrough));
+ default:
+ __attribute__((fallthrough));
+ case 1:
+ return 6;
+ case 2 ... 4:
+ __attribute__((fallthrough));
+ case 5:
+ return 7;
+ }
+ return 0;
+}
+
+int
+g (int i)
+{
+ switch (i)
+ {
+ case -1:
+ __attribute__((used)); /* { dg-warning "ignored|only attribute" } */
+ default:
+ __attribute__((used)); /* { dg-warning "ignored|only attribute" } */
+ case 1:
+ return 6;
+ case 2 ... 4:
+ __attribute__((used)); /* { dg-warning "ignored|only attribute" } */
+ case 5:
+ return 7;
+ }
+ return 0;
+}