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, 18 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/ieee/acc1.c b/gcc/testsuite/gcc.c-torture/execute/ieee/acc1.c
new file mode 100644
index 000000000..e0d969b9d
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/ieee/acc1.c
@@ -0,0 +1,18 @@
+/* Tail call optimizations would reverse the order of additions in func().  */
+
+double func (const double *array)
+{
+  double d = *array;
+  if (d == 0.0)
+    return d;
+  else
+    return d + func (array + 1);
+}
+
+int main ()
+{
+  double values[] = { 0.1e-100, 1.0, -1.0, 0.0 };
+  if (func (values) != 0.1e-100)
+    abort ();
+  exit (0);
+}