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, 46 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/sibcall-6.c b/gcc/testsuite/gcc.dg/sibcall-6.c
new file mode 100644
index 000000000..3dba764bb
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/sibcall-6.c
@@ -0,0 +1,46 @@
+/* A simple check to see whether indirect calls are
+   being sibcall optimized on targets that do support
+   this notion, i.e. have the according call patterns
+   in place.
+
+   Copyright (C) 2002 Free Software Foundation Inc.
+   Contributed by Andreas Bauer <baueran@in.tum.de>  */
+
+/* { dg-do run { target i?86-*-* x86_64-*-* s390*-*-* } } */
+/* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && { ilp32 && { ! nonpic } } } { "*" } { "" } } */
+/* { dg-options "-O2 -foptimize-sibling-calls -fno-ipa-cp" } */
+
+extern void abort (void);
+extern void exit (int);
+
+int foo (int);
+int bar (int);
+
+int (*ptr) (int);
+int *f_addr;
+
+int
+main ()
+{
+  ptr = bar;
+  foo (7);
+  exit (0);
+}
+
+int __attribute__ ((noinline))
+bar (b)
+     int b;
+{
+  if (f_addr == (int*) __builtin_return_address (0))
+    return b;
+  else
+    abort ();
+}
+
+int __attribute__ ((noinline))
+foo (f)
+     int f;
+{
+  f_addr = (int*) __builtin_return_address (0);
+  return (*ptr)(f);
+}