Upgrade gcc-4.4.3 for Android toolchain.

- Backport upstream patches to support arm hardfp.
- Backport gcc-4.5 patches to support -march=atom. Now it is
able to build atom toolchain with glibc from this branch
- Develop a bunch of optimizations
- Fix a few arm dejagnu failures

To-do list:
- Support Android/atom
- Fix ia32 bootstrap failure

Change-Id: I5e10dcd21620d4d8ca984d1d1707a76067e61691

1 files changed, 47 insertions, 0 deletions

diff --git a/gcc-4.4.3/gcc/testsuite/gcc.dg/mversn2.c b/gcc-4.4.3/gcc/testsuite/gcc.dg/mversn2.c
new file mode 100644
index 000000000..7cfb0718b
--- /dev/null
+++ b/gcc-4.4.3/gcc/testsuite/gcc.dg/mversn2.c
@@ -0,0 +1,47 @@
+/* This checks if cloning works correctly.  Since dispatch and fn1 are hot, they
+   should be cloned.  main should not be cloned.*/
+
+/* { dg-do run } */
+/* { dg-options "-O2 -fclone-hot-version-paths -fdump-tree-final_cleanup" } */
+
+int __attribute__ ((version_selector))
+featureTest ()
+{
+  return 1;
+}
+
+int __attribute__ ((cold))
+foo ()
+{
+  return 0;
+}
+
+int __attribute__ ((cold))
+bar ()
+{
+  return 1;
+}
+
+int __attribute__ ((hot))
+dispatch ()
+{
+  return __builtin_dispatch (featureTest, (void *)foo, (void *) bar);
+}
+int __attribute__ ((hot))
+fn1 ()
+{
+  return dispatch ();
+}
+
+int __attribute__ ((cold))
+main ()
+{
+  return fn1 ();
+}
+
+/* { dg-final { scan-tree-dump "fn1_clone_1" "final_cleanup" } } */
+/* { dg-final { scan-tree-dump "dispatch_clone_0" "final_cleanup" } } */
+/* { dg-final { scan-tree-dump "dispatch_clone_1" "final_cleanup" } } */
+/* { dg-final { scan-tree-dump-not "main_clone_0" "final_cleanup" } } */
+/* { dg-final { scan-tree-dump-not "main_clone_1" "final_cleanup" } } */
+/* { dg-final { cleanup-tree-dump "final_cleanup" } } */