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, 50 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/warn/Wunused-var-4.C b/gcc/testsuite/g++.dg/warn/Wunused-var-4.C
new file mode 100644
index 000000000..11ed7afea
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wunused-var-4.C
@@ -0,0 +1,50 @@
+/* { dg-do compile } */
+/* { dg-options "-Wunused" } */
+
+struct S { int e; };
+
+int
+f1 (void)
+{
+  int a;
+  int b;
+  int c;
+  int d;
+  S s;
+  a = 1;
+  b = 2;
+  c = 3;
+  d = 4;
+  s.e = 5;
+  __typeof (c) e;	// { dg-warning "set but not used" }
+  __decltype (d) f;	// { dg-warning "set but not used" }
+  __decltype (s.e) g;	// { dg-warning "set but not used" }
+  e = 1;
+  f = 1;
+  g = 1;
+  return sizeof (a) + __alignof__ (b);
+}
+
+template <int N>
+int f2 (void)
+{
+  int a;
+  int b;
+  int c;
+  int d;
+  a = 1;
+  b = 2;
+  c = 3;
+  d = 4;
+  __typeof (c) e;	// { dg-warning "set but not used" }
+  __decltype (d) f;	// { dg-warning "set but not used" }
+  e = 1;
+  f = 1;
+  return sizeof (a) + __alignof__ (b);
+}
+
+void
+test (void)
+{
+  (void) f2<0> ();
+}