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Add new LLVM_OPTIMIZED_TABLEGEN build setting which configures, builds and uses a release tablegen build when LLVM is configured with assertions enabled.

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Summary: This change leverages the cross-compiling functionality in the build system to build a release tablegen executable for use during the build.

Reviewers: resistor, rnk

Reviewed By: rnk

Subscribers: rnk, joker.eph, llvm-commits

Differential Revision: http://reviews.llvm.org/D7349

llvm-svn: 231842
This commit is contained in:
Chris Bieneman 2015-03-10 20:48:02 +00:00
parent faad462651
commit d24ea211dc
2 changed files with 8 additions and 3 deletions
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9
CMakeLists.txt
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@ -350,6 +350,11 @@ if(LLVM_DISABLE_LLVM_DYLIB_ATEXIT)
set(DISABLE_LLVM_DYLIB_ATEXIT 1)
endif()
option(LLVM_OPTIMIZED_TABLEGEN "Force TableGen to be built with optimization" OFF)
if(CMAKE_CROSSCOMPILING OR (LLVM_OPTIMIZED_TABLEGEN AND LLVM_ENABLE_ASSERTIONS))
set(LLVM_USE_HOST_TOOLS ON)
endif()
# All options referred to from HandleLLVMOptions have to be specified
# BEFORE this include, otherwise options will not be correctly set on
# first cmake run
@ -536,9 +541,9 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
include_directories( ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
# when crosscompiling import the executable targets from a file
if(CMAKE_CROSSCOMPILING)
if(LLVM_USE_HOST_TOOLS)
include(CrossCompile)
endif(CMAKE_CROSSCOMPILING)
endif(LLVM_USE_HOST_TOOLS)
if( ${CMAKE_SYSTEM_NAME} MATCHES FreeBSD )
# On FreeBSD, /usr/local/* is not used by default. In order to build LLVM

2
cmake/modules/TableGen.cmake
View File

@ -91,7 +91,7 @@ macro(add_tablegen target project)
# Effective tblgen executable to be used:
set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN} PARENT_SCOPE)
if(CMAKE_CROSSCOMPILING)
if(LLVM_USE_HOST_TOOLS)
if( ${${project}_TABLEGEN} STREQUAL "${target}" )
set(${project}_TABLEGEN_EXE "${LLVM_NATIVE_BUILD}/bin/${target}")
set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)