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, 36 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/ext/visibility/arm3.C b/gcc/testsuite/g++.dg/ext/visibility/arm3.C
new file mode 100644
index 000000000..9be7082ce
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/visibility/arm3.C
@@ -0,0 +1,36 @@
+// { dg-do compile { target arm*-*-*eabi* } }
+// { dg-require-dll "" }
+// { dg-options "-fvisibility=hidden" }
+
+/* From ARM C++ ABI \S 3.2.5.5:
+
+     A class should be exported unless explicitly tagged otherwise.
+
+   This admonition applies even on DLL-based systems where hidden
+   visibility is the default.  We want -fvisibility=hidden to behave
+   identically to the situation where hidden visibility is the
+   hard-wired default.  So, both A and B are exported classes.
+
+   Furthermore:
+
+     If CAG symbol Y names one of the impedimenta associated with an
+     exported class X:
+
+     ... 
+
+     * Otherwise, if X has no key function:
+     
+       - Y is exported from ... each DLL that refers to X and uses Y.
+
+   So, the type-info and virtual-table symbols associated with A and B
+   must be exported.  */
+
+// { dg-final { scan-not-hidden "_ZTI1A" } }
+// { dg-final { scan-not-hidden "_ZTS1A" } }
+// { dg-final { scan-not-hidden "_ZTV1B" } }
+// { dg-final { scan-not-hidden "_ZTI1B" } }
+// { dg-final { scan-not-hidden "_ZTS1B" } }
+
+struct A {};
+struct B : virtual public A {};
+B b;