third_party_benchmark/.gitignore
Eric 7b03df7ff7
Add tests to verify assembler output -- Fix DoNotOptimize. (#530)
* Add tests to verify assembler output -- Fix DoNotOptimize.

For things like `DoNotOptimize`, `ClobberMemory`, and even `KeepRunning()`,
it is important exactly what assembly they generate. However, we currently
have no way to test this. Instead it must be manually validated every
time a change occurs -- including a change in compiler version.

This patch attempts to introduce a way to test the assembled output automatically.
It's mirrors how LLVM verifies compiler output, and it uses LLVM FileCheck to run
the tests in a similar way.

The tests function by generating the assembly for a test in CMake, and then
using FileCheck to verify the // CHECK lines in the source file are found
in the generated assembly.

Currently, the tests only run on 64-bit x86 systems under GCC and Clang,
and when FileCheck is found on the system.

Additionally, this patch tries to improve the code gen from DoNotOptimize.
This should probably be a separate change, but I needed something to test.

* Disable assembly tests on Bazel for now

* Link FIXME to github issue

* Fix Tests on OS X

* fix strip_asm.py to work on both Linux and OS X like targets
2018-03-23 16:10:47 -06:00

58 lines
644 B
Plaintext

*.a
*.so
*.so.?*
*.dll
*.exe
*.dylib
*.cmake
!/cmake/*.cmake
!/test/AssemblyTests.cmake
*~
*.pyc
__pycache__
# lcov
*.lcov
/lcov
# cmake files.
/Testing
CMakeCache.txt
CMakeFiles/
cmake_install.cmake
# makefiles.
Makefile
# in-source build.
bin/
lib/
/test/*_test
# exuberant ctags.
tags
# YouCompleteMe configuration.
.ycm_extra_conf.pyc
# ninja generated files.
.ninja_deps
.ninja_log
build.ninja
install_manifest.txt
rules.ninja
# bazel output symlinks.
bazel-*
# out-of-source build top-level folders.
build/
_build/
# in-source dependencies
/googletest/
# Visual Studio 2015/2017 cache/options directory
.vs/
CMakeSettings.json