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[CMake] Require python 3.6 if enabling LLVM test targets

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The lit test suite uses python 3.6 features. Rather than a strange
python syntax error upon running the lit tests, we will require the
correct version in CMake.

Reviewed By: serge-sans-paille, yln

Differential Revision: https://reviews.llvm.org/D95635
This commit is contained in:
Christopher Tetreault 2021-03-15 09:33:31 -07:00
parent b807b27145
commit 909d35077f
2 changed files with 10 additions and 1 deletions
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3
CMakeLists.txt
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@ -693,7 +693,8 @@ set(ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER TRUE CACHE BOOL
include(HandleLLVMOptions) include(HandleLLVMOptions)
find_package(Python3 REQUIRED COMPONENTS Interpreter) find_package(Python3 ${LLVM_MINIMUM_PYTHON_VERSION} REQUIRED
COMPONENTS Interpreter)
###### ######

8
cmake/modules/HandleLLVMOptions.cmake
View File

@ -1176,3 +1176,11 @@ if(LLVM_USE_RELATIVE_PATHS_IN_FILES)
append_if(SUPPORTS_FFILE_PREFIX_MAP "-ffile-prefix-map=${source_root}/=${LLVM_SOURCE_PREFIX}" CMAKE_C_FLAGS CMAKE_CXX_FLAGS) append_if(SUPPORTS_FFILE_PREFIX_MAP "-ffile-prefix-map=${source_root}/=${LLVM_SOURCE_PREFIX}" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
add_flag_if_supported("-no-canonical-prefixes" NO_CANONICAL_PREFIXES) add_flag_if_supported("-no-canonical-prefixes" NO_CANONICAL_PREFIXES)
endif() endif()
if(LLVM_INCLUDE_TESTS)
# Lit test suite requires at least python 3.6
set(LLVM_MINIMUM_PYTHON_VERSION 3.6)
else()
# FIXME: it is unknown if this is the actual minimum bound
set(LLVM_MINIMUM_PYTHON_VERSION 3.0)
endif()