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, 48 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/Wunused-var-7.c b/gcc/testsuite/c-c++-common/Wunused-var-7.c
new file mode 100644
index 000000000..74196436d
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/Wunused-var-7.c
@@ -0,0 +1,48 @@
+/* PR c++/44062 */
+/* { dg-do compile } */
+/* { dg-options "-Wunused" } */
+
+void
+foo (void)
+{
+  int a, b, c, d, e, f, g;
+  a = 1;
+  b = 2;
+  c = 3;
+  d = 4;
+  e = 5;
+  f = 6;
+  g = 7;
+  a;			/* { dg-warning "no effect" } */
+  b, 1;			/* { dg-warning "no effect" } */
+  (void) c;
+  (void) d, 1;		/* { dg-warning "no effect" } */
+  e, f, 1;		/* { dg-warning "no effect" } */
+  (void) g, f, 1;	/* { dg-warning "no effect" } */
+}
+
+void
+bar (void)
+{
+  int a;
+  int b;
+  int c;		/* { dg-warning "set but not used" } */
+  a = 1;
+  b = 2;
+  c = 3;
+  c = ({ a++, b; });
+}
+
+void
+baz (void)
+{
+  int a;
+  int b;
+  int c;
+  int d;
+  a = 1;
+  b = 2;
+  c = 3;
+  d = 4;
+  d, ( a++, b ), c;	/* { dg-warning "no effect" } */
+}