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llvm-mirror/cmake
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Chandler Carruth 5b6b9b3232 Revert r330742: Let TableGen write output only if it changed, instead of doing so in cmake. 
This change causes us to re-run tablegen for every single target on
every single build. This is much, much worse than the problem being
fixed AFAICT.

On my system, it makes a clean rebuild of `llc` with nothing changed go
from .5s to over 8s. On systems with less parallelism, slower file
systems, or high process startup overhead this will be even more
extreme.

The only way I see this could be a win is in clean builds where we churn
the filesystem. But I think incremental rebuild is more important, and
so if we want to re-instate this, it needs to be done in a way that
doesn't trigger constant re-runs of tablegen.

llvm-svn: 331702
2018-05-07 23:41:48 +00:00
..
modules Revert r330742: Let TableGen write output only if it changed, instead of doing so in cmake. 2018-05-07 23:41:48 +00:00
platforms [cmake] Fix clang-cl cross-compilation on macOS 2017-12-15 01:05:48 +00:00
config-ix.cmake [cmake] Improve pthread_[gs]etname_np detection code 2018-04-18 13:13:27 +00:00
config.guess
dummy.cpp
nsis_icon.ico
nsis_logo.bmp
README

README 

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