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Use ninja pools to limit the number of concurrent compile/link jobs.

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This change makes use of the new "job pool" capability in cmake 3.0
with ninja generator to allow limiting the number of concurrent jobs
of a certain type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222341 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evgeniy Stepanov 2014-11-19 10:30:02 +00:00
parent a6943fff90
commit 0e2f3ce8a0
2 changed files with 21 additions and 0 deletions
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15
CMakeLists.txt
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@ -24,6 +24,21 @@ endif()
project(LLVM)
# The following only works with the Ninja generator in CMake >= 3.0.
set(LLVM_PARALLEL_COMPILE_JOBS "" CACHE STRING
"Define the maximum number of concurrent compilation jobs.")
if(LLVM_PARALLEL_COMPILE_JOBS)
set_property(GLOBAL APPEND PROPERTY JOB_POOLS compile_job_pool=${LLVM_PARALLEL_COMPILE_JOBS})
set(CMAKE_JOB_POOL_COMPILE compile_job_pool)
endif()
set(LLVM_PARALLEL_LINK_JOBS "" CACHE STRING
"Define the maximum number of concurrent link jobs.")
if(LLVM_PARALLEL_LINK_JOBS)
set_property(GLOBAL APPEND PROPERTY JOB_POOLS link_job_pool=${LLVM_PARALLEL_LINK_JOBS})
set(CMAKE_JOB_POOL_LINK link_job_pool)
endif()
# Add path for custom modules
set(CMAKE_MODULE_PATH
${CMAKE_MODULE_PATH}

6
docs/CMake.rst
View File

@ -291,6 +291,12 @@ LLVM-specific variables
are ``Address``, ``Memory``, ``MemoryWithOrigins`` and ``Undefined``.
Defaults to empty string.
**LLVM_PARALLEL_COMPILE_JOBS**:STRING
Define the maximum number of concurrent compilation jobs.
**LLVM_PARALLEL_LINK_JOBS**:STRING
Define the maximum number of concurrent link jobs.
**LLVM_BUILD_DOCS**:BOOL
Enables all enabled documentation targets (i.e. Doxgyen and Sphinx targets) to
be built as part of the normal build. If the ``install`` target is run then