tree f66321023e8829fb69c9db426f21c306a61f5bcb
parent a18cc9c60a032e4a02ea0aef08bc758e5acb4cd0
author Jim Stichnoth <stichnot@chromium.org> 1412180901 -0700
committer Jim Stichnoth <stichnot@chromium.org> 1412180901 -0700

Subzero: Allow builds with assertions disabled.

1. Setting command-line make variable NOASSERT=1 adds -DNDEBUG and builds in a separate directory.  By default, we still get Release+Asserts.

2. Add "(void)foo;" as necessary when foo is only used in an assert(), to remove warnings.

3. Minimize inclusion of llvm/Support/Timer.h because it adds warnings.

4. Call validateLiveness() only when asserts are enabled, because it's relatively expensive.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/623493002