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, 32 insertions, 0 deletions

diff --git a/gcc-4.4.3/gcc/testsuite/g++.dg/thread-ann/thread_annot_lock-58.C b/gcc-4.4.3/gcc/testsuite/g++.dg/thread-ann/thread_annot_lock-58.C
new file mode 100644
index 000000000..858e63558
--- /dev/null
+++ b/gcc-4.4.3/gcc/testsuite/g++.dg/thread-ann/thread_annot_lock-58.C
@@ -0,0 +1,32 @@
+// Test handling of arguments passed to reference parameters.
+// { dg-do compile }
+// { dg-options "-Wthread-safety -O" }
+
+#include <string>
+#include "thread_annot_common.h"
+
+class Base {
+ public:
+  Base() {}
+ protected:
+  Mutex* mutex() const LOCK_RETURNED(mutex_) { return &mutex_; }
+ private:
+  mutable Mutex mutex_;
+};
+
+class Subclass : public Base {
+ public:
+  Subclass() {}
+
+  void ClearValue() { SetValueLocked(0); }
+  std::string GetValue() const;
+
+ private:
+  void SetValueLocked(std::string value) { value_ = value; }
+
+  std::string value_ GUARDED_BY(mutex_);
+};
+
+std::string Subclass::GetValue() const {
+  return value_; // { dg-warning "Reading variable 'value_' requires lock" }
+}