Eric Fiselier 30b48cb1b3 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		2016-08-09 18:56:48 +00:00
..
algorithms.bench.cpp	Update in-tree Google Benchmark to current ToT.	2016-08-09 18:56:48 +00:00
CMakeLists.txt	Update in-tree Google Benchmark to current ToT.	2016-08-09 18:56:48 +00:00
ContainerBenchmarks.hpp	Update in-tree Google Benchmark to current ToT.	2016-08-09 18:56:48 +00:00
GenerateInput.hpp	Skip chash computation in insert/emplace if the unconstrained hash matches.	2016-07-24 06:22:25 +00:00
unordered_set_operations.bench.cpp	Update in-tree Google Benchmark to current ToT.	2016-08-09 18:56:48 +00:00
util_smartptr.bench.cpp	Adding smart_ptr benchmark	2016-08-01 19:56:39 +00:00
vector_operations.bench.cpp	Start adding benchmarks for vector	2016-07-24 06:51:55 +00:00