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, 33 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-10.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-10.c
new file mode 100644
index 000000000..c8d118e37
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-10.c
@@ -0,0 +1,33 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+/* { dg-require-effective-target int32plus } */
+
+int bar (void);
+
+void foo (void)
+{
+  unsigned i, j, n;
+
+  for (i = 0; i < 100000; i++)
+    ;
+
+  n = bar ();
+  for (i = 0; i < n; i++)
+    ;
+
+  for (i = 0; i < n; i++)
+    for (j = 0; j < n; j++)
+      ;
+
+  /* These should not be removed.  */
+  for (i = 0; i < 10000; i++)
+    bar ();
+
+  for (i = 0; i != n; i += 2)
+    ;
+}
+
+/* { dg-final { scan-tree-dump-times "if " 3 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "bar " 2 "optimized" } } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */