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, 56 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/func-ptr-conv-1.c b/gcc/testsuite/gcc.dg/func-ptr-conv-1.c
new file mode 100644
index 000000000..5c8a10134
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/func-ptr-conv-1.c
@@ -0,0 +1,56 @@
+/* Conversions between function and object pointers are not permitted
+   in any version of ISO C, even with casts, except for the special
+   case of converting a null pointer constant to function pointer
+   type.  Likewise, comparisons between function and object pointers
+   are not permitted.  PR c/11234.  */
+/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
+/* { dg-do compile } */
+/* { dg-options "-pedantic" } */
+
+void f(void);
+
+void *v1 = f; /* { dg-warning "12:pointer" "bad conversion" } */
+void *v2 = &f; /* { dg-warning "12:pointer" "bad conversion" } */
+void *v3 = (void *)f; /* { dg-warning "12:pointer" "bad conversion" } */
+void *v4 = (void *)&f; /* { dg-warning "12:pointer" "bad conversion" } */
+void *v5;
+char *c1 = f; /* { dg-warning "12:pointer" "bad conversion" } */
+char *c2 = &f; /* { dg-warning "12:pointer" "bad conversion" } */
+char *c3 = (char *)f; /* { dg-warning "12:pointer" "bad conversion" } */
+char *c4 = (char *)&f; /* { dg-warning "12:pointer" "bad conversion" } */
+char *c5;
+void (*fp)(void);
+int a;
+
+void
+g(void)
+{
+  v5 = f; /* { dg-warning "6:pointer" "bad conversion" } */
+  v5 = &f; /* { dg-warning "6:pointer" "bad conversion" } */
+  v5 = (void *)f; /* { dg-warning "8:pointer" "bad conversion" } */
+  v5 = (void *)&f; /* { dg-warning "8:pointer" "bad conversion" } */
+  c5 = f; /* { dg-warning "6:pointer" "bad conversion" } */
+  c5 = &f; /* { dg-warning "6:pointer" "bad conversion" } */
+  c5 = (char *)f; /* { dg-warning "8:pointer" "bad conversion" } */
+  c5 = (char *)&f; /* { dg-warning "8:pointer" "bad conversion" } */
+  fp = v5; /* { dg-warning "6:pointer" "bad conversion" } */
+  fp = c5; /* { dg-warning "6:pointer" "bad conversion" } */
+  fp = (void (*)(void))v5; /* { dg-warning "8:pointer" "bad conversion" } */
+  fp = (void (*)(void))c5; /* { dg-warning "8:pointer" "bad conversion" } */
+  (a ? f : v3); /* { dg-warning "10:pointer" "bad conversion" } */
+  (a ? v2 : fp); /* { dg-warning "11:pointer" "bad conversion" } */
+  /* The following are OK.  */
+  fp = 0;
+  fp = (void *)0;
+  fp = 0L;
+  fp = (void (*)(void))0;
+  fp = (void (*)(void))(void *)0;
+  (a ? f : 0);
+  (a ? f : (void *)0);
+  (a ? (void *)0 : fp);
+  (a ? 0 : fp);
+}
+
+/* The following are OK.  */
+void (*fp2)(void) = 0;
+void (*fp3)(void) = (void *)0;