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, 29 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/opt/inline9.C b/gcc/testsuite/g++.dg/opt/inline9.C
new file mode 100644
index 000000000..10bc54ccd
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/inline9.C
@@ -0,0 +1,29 @@
+// PR c++/17972
+// Origin: Michal Ostrowski <mostrows@watson.ibm.com>
+// Testcase by Alan Modra <amodra@bigpond.net.au>
+// { dg-do run }
+// { dg-options "-O" }
+// { dg-options "-O -mtune=i686" { target { { i?86-*-* x86_64-*-* } && ilp32 } } }
+
+struct thread_info
+{
+  short preempt_count;
+} x;
+
+static inline struct thread_info *cti (void) __attribute__ ((const));
+static inline struct thread_info *cti (void)
+{
+  return &x;
+}
+
+void fn (void) __attribute__ ((noinline));
+void fn (void)
+{
+  ++cti()->preempt_count;
+}
+
+int main (void)
+{
+  fn ();
+  return 0;
+}