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, 22 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/union-1.c b/gcc/testsuite/gcc.dg/union-1.c
new file mode 100644
index 000000000..0dd2df9b0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/union-1.c
@@ -0,0 +1,22 @@
+/* PR target/15783 */
+/* Origin: Paul Pluzhnikov <ppluzhnikov@charter.net> */
+
+/* This used to ICE on SPARC 64-bit because the back-end was
+   returning an invalid construct for the return value of fu2.  */
+
+/* { dg-do compile } */
+
+union u2 {
+    struct
+    {
+        int u2s_a, u2s_b, u2s_c, u2s_d, u2s_e;
+    } u2_s;
+    double u2_d;
+} u2a;
+
+union u2 fu2();
+
+void unions()
+{
+    u2a = fu2();
+}