obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 28 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/warn/Wunused-label-1.C b/gcc/testsuite/g++.dg/warn/Wunused-label-1.C
new file mode 100644
index 000000000..96f49b321
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wunused-label-1.C
@@ -0,0 +1,28 @@
+// { dg-do compile }
+// { dg-options "-Wunused-label" }
+
+extern void f9();
+
+void
+f1()
+{
+ l1: f9();				// { dg-warning "not used" }
+ l3: ; f9();				// { dg-warning "not used" }
+ l4: __attribute__ ((unused)) ; f9();
+}
+
+void
+f2()
+{
+ label: __attribute ((unused)) ;
+}
+
+void
+f3()
+{
+  // The next line would be OK in C but is a syntax error in C++.
+ l2: __attribute__ ((unused)) f9();	// { dg-error "expected" }
+		// We still get an unused label warning--this is
+		// optional and can be removed if it ever changes.
+		// { dg-warning "not used" "expected" { target *-*-* } 24 }
+}