Aditya Kumar aa356d6b86 [locale] Avoid copy of __atoms when char_type is char ...

The function num_get<_CharT>::stage2_int_prep makes unnecessary copy of src
into atoms when char_type is char. This can be avoided by creating
a switch on type and just returning __src when char_type is char.

Added the test case to demonstrate performance improvement.
In order to avoid ABI incompatibilities, the changes are guarded
with a macro _LIBCPP_ABI_OPTIMIZED_LOCALE_NUM_GET

Differential Revision: https://reviews.llvm.org/D30268
Reviewed by: EricWF

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@305427 91177308-0d34-0410-b5e6-96231b3b80d8

2017-06-14 23:17:45 +00:00

..

algorithms.bench.cpp

Update in-tree Google Benchmark to current ToT.

2016-08-09 18:56:48 +00:00

CMakeLists.txt

Emit benchmark tests into the benchmarks build directory, not lib/

2017-04-18 07:40:22 +00:00

ContainerBenchmarks.hpp

remove warnings from google-benchmarks in libcxx

2016-10-14 00:07:57 +00:00

filesystem.bench.cpp

Optimize filesystem::path by providing weaker exception guarantees.

2016-10-31 02:46:25 +00:00

GenerateInput.hpp

Add start of filesystem benchmarks

2016-10-30 22:53:00 +00:00

string.bench.cpp

improve performance of string::find

2016-12-30 18:01:36 +00:00

stringstream.bench.cpp

[locale] Avoid copy of __atoms when char_type is char

2017-06-14 23:17:45 +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