From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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.
---
 gcc/testsuite/c-c++-common/Wunused-var-1.c | 179 +++++++++++++++++++++++++++++
 1 file changed, 179 insertions(+)
 create mode 100644 gcc/testsuite/c-c++-common/Wunused-var-1.c

(limited to 'gcc/testsuite/c-c++-common/Wunused-var-1.c')

diff --git a/gcc/testsuite/c-c++-common/Wunused-var-1.c b/gcc/testsuite/c-c++-common/Wunused-var-1.c
new file mode 100644
index 000000000..ef8f6d454
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/Wunused-var-1.c
@@ -0,0 +1,179 @@
+/* { dg-do compile } */
+/* { dg-options "-Wunused" } */
+
+void
+f1 (void)
+{
+  int a;	/* { dg-warning "set but not used" } */
+  int b;
+  int c;
+  c = 1;
+  a = b = c;
+}
+
+void
+f2 (int x)
+{
+  int a;	/* { dg-warning "set but not used" } */
+  int b;
+  int c;	/* { dg-warning "set but not used" } */
+  c = (a = x, b = x);
+}
+
+int
+f3 (int x)
+{
+  int a;
+  return a = x;
+}
+
+int
+f4 (int x)
+{
+  int a;
+  a = x;
+  return a;
+}
+
+void
+f5 (int x)
+{
+  int a[2];	/* { dg-warning "set but not used" } */
+  int b;
+  int *c, d[2];
+  c = d;
+  b = x;
+  a[b] = 1;
+  c[b] = 1;
+}
+
+int
+f6 (int x)
+{
+  int a[2];
+  int b;
+  b = x;
+  a[b] = 1;
+  return a[b];
+}
+
+void
+f7 (int x, int *p)
+{
+  int *a[2];
+  a[x] = p;
+  a[x][x] = x;
+}
+
+struct S { int i; };
+
+void
+f8 (void)
+{
+  struct S s;	/* { dg-warning "set but not used" } */
+  s.i = 6;
+}
+
+int
+f9 (void)
+{
+  struct S s;
+  s.i = 6;
+  return s.i;
+}
+
+struct S
+f10 (void)
+{
+  struct S s;
+  s.i = 6;
+  return s;
+}
+
+extern int foo11 (int *);
+
+void
+f11 (void)
+{
+  int a[2];
+  foo11 (a);
+}
+
+void
+f12 (void)
+{
+  int a;
+  a = 1;
+  a;	/* { dg-warning "no effect" } */
+}
+
+void
+f13 (void (*x) (void))
+{
+  void (*a) (void);
+  a = x;
+  a ();
+}
+
+void
+f14 (void (*x) (void))
+{
+  void (*a) (void);	/* { dg-warning "set but not used" } */
+  a = x;
+}
+
+extern void foo15 (int *);
+
+void
+f15 (void)
+{
+  int a[10];
+  int *b = a + 2;
+  foo15 (b);
+}
+
+extern void foo16 (int **);
+
+void
+f16 (void)
+{
+  int a[10];
+  int *b[] = { a, a + 2 };
+  foo16 (b);
+}
+
+void
+f17 (int x)
+{
+  long a;	/* { dg-warning "set but not used" } */
+  int b;
+  a = b = x;
+}
+
+void
+f18 (int x)
+{
+  int a;	/* { dg-warning "set but not used" } */
+  int b;
+  a = (char) (b = x);
+}
+
+int
+f19 (int x, int y, int z)
+{
+  int a;
+  int b;
+  a = x;
+  b = y;
+  return z ? a : b;
+}
+
+int *
+f20 (int x)
+{
+  static int a[] = { 3, 4, 5, 6 };
+  static int b[] = { 4, 5, 6, 7 };
+  static int c[] = { 5, 6, 7, 8 };	/* { dg-warning "set but not used" } */
+  c[1] = 1;
+  return x ? a : b;
+}
-- 
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