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cmake: don't enable internal llvm with disabled embedded compiler

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Even if UNBUNDLED is off

Squashed:
- cmake: fix misleading error message about internal llvm on unsupported arches
- cmake: re-do some checks for LLVM options

Signed-off-by: Konstantin Podshumok <kpp.live+signed@gmail.com>
This commit is contained in:
Konstantin Podshumok 2020-08-14 03:36:38 +03:00
parent 1913522233
commit 986bdf86ee
No known key found for this signature in database
GPG Key ID: 7EA5D4784D5BB847
1 changed files with 25 additions and 18 deletions
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35
cmake/find/llvm.cmake
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@ -1,9 +1,11 @@
# Broken in macos. TODO: update clang, re-test, enable
if (NOT APPLE)
if (APPLE OR SPLIT_SHARED_LIBRARIES OR NOT ARCH_AMD64)
set (ENABLE_EMBEDDED_COMPILER OFF CACHE INTERNAL "")
endif()
option (ENABLE_EMBEDDED_COMPILER "Set to TRUE to enable support for 'compile_expressions' option for query execution" ${ENABLE_LIBRARIES})
# Broken in macos. TODO: update clang, re-test, enable on Apple
if (ENABLE_EMBEDDED_COMPILER AND NOT SPLIT_SHARED_LIBRARIES AND ARCH_AMD64 AND NOT (SANITIZE STREQUAL "undefined"))
option (USE_INTERNAL_LLVM_LIBRARY "Use bundled or system LLVM library." ${NOT_UNBUNDLED})
elseif(ENABLE_EMBEDDED_COMPILER OR USE_INTERNAL_LLVM_LIBRARY)
message (${RECONFIGURE_MESSAGE_LEVEL} "Embedded compiler is not currently supported on Apple")
endif()
if (NOT ENABLE_EMBEDDED_COMPILER)
@ -13,10 +15,12 @@ if (NOT ENABLE_EMBEDDED_COMPILER)
return()
endif()
if (USE_INTERNAL_LLVM_LIBRARY AND NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/llvm/llvm/CMakeLists.txt")
if (NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/llvm/llvm/CMakeLists.txt")
if (USE_INTERNAL_LLVM_LIBRARY)
message (WARNING "submodule contrib/llvm is missing. to fix try run: \n git submodule update --init --recursive")
message (${RECONFIGURE_MESSAGE_LEVEL} "Can't fidd internal LLVM library")
set (USE_INTERNAL_LLVM_LIBRARY 0)
endif()
set (MISSING_INTERNAL_LLVM_LIBRARY 1)
endif ()
if (NOT USE_INTERNAL_LLVM_LIBRARY)
@ -46,35 +50,38 @@ if (NOT USE_INTERNAL_LLVM_LIBRARY)
set (LLVM_FOUND 0)
set (USE_EMBEDDED_COMPILER 0)
endif ()
else()
endif()
if(NOT LLVM_FOUND AND NOT MISSING_INTERNAL_LLVM_LIBRARY)
if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
message(WARNING "Option ENABLE_EMBEDDED_COMPILER is set but LLVM library cannot build if build directory is the same as source directory.")
message(WARNING "Option ENABLE_EMBEDDED_COMPILER is set but internal LLVM library cannot build if build directory is the same as source directory.")
set (LLVM_FOUND 0)
set (USE_EMBEDDED_COMPILER 0)
elseif (SPLIT_SHARED_LIBRARIES)
# llvm-tablegen cannot find shared libraries that we build. Probably can be easily fixed.
message(WARNING "Option ENABLE_EMBEDDED_COMPILER is not compatible with SPLIT_SHARED_LIBRARIES. Build of LLVM will be disabled.")
message(WARNING "Option USE_INTERNAL_LLVM_LIBRARY is not compatible with SPLIT_SHARED_LIBRARIES. Build of LLVM will be disabled.")
set (LLVM_FOUND 0)
set (USE_EMBEDDED_COMPILER 0)
elseif (NOT ARCH_AMD64)
# It's not supported yet, but you can help.
message(WARNING "Option ENABLE_EMBEDDED_COMPILER is only available for x86_64. Build of LLVM will be disabled.")
message(WARNING "Option USE_INTERNAL_LLVM_LIBRARY is only available for x86_64. Build of LLVM will be disabled.")
set (LLVM_FOUND 0)
set (USE_EMBEDDED_COMPILER 0)
elseif (SANITIZE STREQUAL "undefined")
# llvm-tblgen, that is used during LLVM build, doesn't work with UBSan.
message(WARNING "Option ENABLE_EMBEDDED_COMPILER does not work with UBSan, because 'llvm-tblgen' tool from LLVM has undefined behaviour. Build of LLVM will be disabled.")
message(WARNING "Option USE_INTERNAL_LLVM_LIBRARY does not work with UBSan, because 'llvm-tblgen' tool from LLVM has undefined behaviour. Build of LLVM will be disabled.")
set (LLVM_FOUND 0)
set (USE_EMBEDDED_COMPILER 0)
else ()
set (USE_INTERNAL_LLVM_LIBRARY ON)
set (LLVM_FOUND 1)
set (USE_EMBEDDED_COMPILER 1)
set (LLVM_VERSION "9.0.0bundled")
set (LLVM_INCLUDE_DIRS
${ClickHouse_SOURCE_DIR}/contrib/llvm/llvm/include
${ClickHouse_BINARY_DIR}/contrib/llvm/llvm/include
"${ClickHouse_SOURCE_DIR}/contrib/llvm/llvm/include"
"${ClickHouse_BINARY_DIR}/contrib/llvm/llvm/include"
)
set (LLVM_LIBRARY_DIRS ${ClickHouse_BINARY_DIR}/contrib/llvm/llvm)
set (LLVM_LIBRARY_DIRS "${ClickHouse_BINARY_DIR}/contrib/llvm/llvm")
endif()
endif()