From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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.
---
 gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c | 40 +++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c

(limited to 'gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c')

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c b/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c
new file mode 100644
index 000000000..875a6aa78
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-7.c
@@ -0,0 +1,40 @@
+/* { dg-do run } */
+/* { dg-options "-O1 -foptimize-sibling-calls -fdump-tree-optimized" } */
+
+extern void abort (void);
+extern void exit (int);
+
+int foo (int n)
+{
+  return n == 0 ? 1 : n * (n - foo (n - 1));
+}
+
+int bar (int n)
+{
+  return n == 0 ? 1 : n * (- bar (n - 1));
+}
+
+int baz (int n, int m)
+{
+  return n == 0 ? 100 : (baz (n - 1, m) - m);
+}
+
+int main (void)
+{
+  if (foo (6) != 726)
+    abort ();
+
+  if (bar (7) != -5040)
+    abort ();
+
+  if (baz (10, 5) != 50)
+    abort ();
+
+  exit (0);
+}
+
+/* { dg-final { scan-tree-dump-times "\\mfoo\\M" 4 "optimized"} } */
+/* { dg-final { scan-tree-dump-times "\\mbar\\M" 4 "optimized"} } */
+/* { dg-final { scan-tree-dump-times "\\mbaz\\M" 4 "optimized"} } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */
-- 
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