Update in-tree Google Benchmark to current ToT. I've put some work into the Google Benchmark library in order to make it easier to benchmark libc++. These changes have already been upstreamed into Google Benchmark and this patch applies the changes to the in-tree version. The main improvement in the addition of a 'compare_bench.py' script which makes it very easy to compare benchmarks. For example to compare the native STL to libc++ you would run: `$ compare_bench.py ./util_smartptr.native.out ./util_smartptr.libcxx.out` And the output would look like: RUNNING: ./util_smartptr.native.out Benchmark Time CPU Iterations ---------------------------------------------------------------- BM_SharedPtrCreateDestroy 62 ns 62 ns 10937500 BM_SharedPtrIncDecRef 31 ns 31 ns 23972603 BM_WeakPtrIncDecRef 28 ns 28 ns 23648649 RUNNING: ./util_smartptr.libcxx.out Benchmark Time CPU Iterations ---------------------------------------------------------------- BM_SharedPtrCreateDestroy 46 ns 46 ns 14957265 BM_SharedPtrIncDecRef 31 ns 31 ns 22435897 BM_WeakPtrIncDecRef 34 ns 34 ns 21084337 Comparing ./util_smartptr.native.out to ./util_smartptr.libcxx.out Benchmark Time CPU ----------------------------------------------------- BM_SharedPtrCreateDestroy -0.26 -0.26 BM_SharedPtrIncDecRef +0.00 +0.00 BM_WeakPtrIncDecRef +0.21 +0.21 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@278147 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/google-benchmark/AUTHORS b/utils/google-benchmark/AUTHORS index 0f93e01..0e40922 100644 --- a/utils/google-benchmark/AUTHORS +++ b/utils/google-benchmark/AUTHORS
@@ -13,6 +13,7 @@ Christopher Seymour <chris.j.seymour@hotmail.com> David Coeurjolly <david.coeurjolly@liris.cnrs.fr> Dominic Hamon <dma@stripysock.com> +Eric Fiselier <eric@efcs.ca> Eugene Zhuk <eugene.zhuk@gmail.com> Evgeny Safronov <division494@gmail.com> Felix Homann <linuxaudio@showlabor.de>
