llvm/cmake
Rafael Espindola a72e2a9037 Bring r314809 back.
But now include a check for CPU_COUNT so we still build on 10 year old
versions of glibc.

Original message:

Use sched_getaffinity instead of std:🧵:hardware_concurrency.

The issue with std:🧵:hardware_concurrency is that it forwards
to libc and some implementations (like glibc) don't take thread
affinity into consideration.

With this change a llvm program that can execute in only 2 cores will
use 2 threads, even if the machine has 32 cores.

This makes benchmarking a lot easier, but should also help if someone
doesn't want to use all cores for compilation for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314931 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-04 20:27:01 +00:00
..
modules Revert "[CMake] Remove CMAKE_.*_OUTPUT_DIRECTORY (NFCI)" 2017-09-29 19:50:41 +00:00
platforms
config-ix.cmake Bring r314809 back. 2017-10-04 20:27:01 +00:00
config.guess Remove Bitrig: LLVM Changes 2017-07-21 22:48:47 +00:00
dummy.cpp
nsis_icon.ico
nsis_logo.bmp
README

See docs/CMake.html for instructions on how to build LLVM with CMake.