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, 68 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/multiword-1.c b/gcc/testsuite/gcc.dg/multiword-1.c
new file mode 100644
index 000000000..c08161791
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/multiword-1.c
@@ -0,0 +1,68 @@
+/* { dg-do run } */
+/* { dg-options "-O3" } */
+/* { dg-require-effective-target ilp32 } */
+
+typedef unsigned int u32;
+typedef unsigned long long u64;
+
+u64 __attribute__((noinline))
+foo (u32 high, u32 low)
+{
+  return ((u64)high << 32) | low;
+}
+
+u32 __attribute__((noinline))
+right (u64 t)
+{
+  return (u32)(t >> 32);
+}
+
+u64 __attribute__((noinline))
+left (u32 t)
+{
+  return (u64)t << 32;
+}
+
+u32 __attribute__((noinline))
+right2 (u64 t)
+{
+  return (u32)(t >> 40);
+}
+
+u64 __attribute__((noinline))
+left2 (u32 t)
+{
+  return (u64)t << 40;
+}
+
+u64 __attribute__((noinline))
+zeroextend (u32 t)
+{
+  return (u64)t;
+}
+
+extern void abort ();
+
+int
+main ()
+{
+  if (foo (13000, 12000) != 55834574860000ULL)
+    abort ();
+
+  if (right (55834574860000ULL) != 13000)
+    abort ();
+
+  if (left (13000) != 55834574848000ULL)
+    abort ();
+
+  if (right2 (55834574860000ULL) != 50)
+    abort ();
+
+  if (left2 (13000) != 14293651161088000ULL)
+    abort ();
+
+  if (zeroextend (13000) != 13000ULL)
+    abort ();
+
+  return 0;
+}