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, 39 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20050604-1.c b/gcc/testsuite/gcc.c-torture/execute/20050604-1.c
new file mode 100644
index 000000000..70097aa14
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20050604-1.c
@@ -0,0 +1,39 @@
+/* PR regression/21897 */
+
+extern void abort (void);
+
+typedef short v4hi __attribute__ ((vector_size (8)));
+typedef float v4sf __attribute__ ((vector_size (16)));
+
+union
+{
+  v4hi v;
+  short s[4];
+} u;
+
+union
+{
+  v4sf v;
+  float f[4];
+} v;
+
+void
+foo (void)
+{
+  unsigned int i;
+  for (i = 0; i < 2; i++)
+    u.v += (v4hi) { 12, 14 };
+  for (i = 0; i < 2; i++)
+    v.v += (v4sf) { 18.0, 20.0, 22 };
+}
+
+int
+main (void)
+{
+  foo ();
+  if (u.s[0] != 24 || u.s[1] != 28 || u.s[2] || u.s[3])
+    abort ();
+  if (v.f[0] != 36.0 || v.f[1] != 40.0 || v.f[2] != 44.0 || v.f[3] != 0.0)
+    abort ();
+  return 0;
+}