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, 29 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/builtin-offsetof.c b/gcc/testsuite/c-c++-common/builtin-offsetof.c
new file mode 100644
index 000000000..6d9777546
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/builtin-offsetof.c
@@ -0,0 +1,29 @@
+// Contributed by Dodji Seketeli <dodji@redhat.com>
+// Origin PR c++/38699
+// { dg-options "-Warray-bounds" }
+// { dg-do compile }
+
+struct A
+{
+  const char *p;
+};
+
+struct B
+{
+    char p[10];
+    struct A a;
+};
+
+void
+f0 ()
+{
+  __builtin_offsetof(struct A, p); // OK
+  __builtin_offsetof(struct A, p[0]); // { dg-error "non constant address" }
+  __builtin_offsetof(struct B, p[0]); // OK
+  __builtin_offsetof(struct B, p[9]); // OK
+  __builtin_offsetof(struct B, p[10]); // OK
+  __builtin_offsetof(struct B, p[11]); // { dg-warning "greater than size" }
+  __builtin_offsetof(struct B, a.p); // OK
+  __builtin_offsetof(struct B, p[0]); // OK
+  __builtin_offsetof(struct B, a.p[0]); // { dg-error "non constant address" }
+}