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[Polly][CMake] Fix exports (#122123)

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If Polly is built with LLVM_POLLY_LINK_INTO_TOOLS=ON (the default for
monorepo builds), then Polly will become a dependency of the
LLVMExtensions component, which is part of LLVMExports. As such, all the
Polly libraries also have to be part of LLVMExports.

However, if Polly is built with LLVM_POLLY_LINK_INTO_TOOLS=OFF, we also
end up adding Polly libraries to LLVMExports. This is undesirable, as it
adds a hard dependency from llvm on polly.

Fix this by only exporting polly libraries from LLVMExports if
LLVM_POLLY_LINK_INTO_TOOLS is enabled.
This commit is contained in:
Nikita Popov 2025-01-20 12:33:29 +01:00 committed by GitHub
parent 4d21096c20
commit 2d6d476ffb
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
3 changed files with 18 additions and 4 deletions
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4
llvm/cmake/modules/AddLLVM.cmake
View File

@ -1220,9 +1220,9 @@ function(add_llvm_pass_plugin name)
endif()
set_property(GLOBAL APPEND PROPERTY LLVM_STATIC_EXTENSIONS ${name})
elseif(NOT ARG_NO_MODULE)
add_llvm_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
add_llvm_library(${name} MODULE NO_EXPORT ${ARG_UNPARSED_ARGUMENTS})
else()
add_llvm_library(${name} OBJECT ${ARG_UNPARSED_ARGUMENTS})
add_llvm_library(${name} OBJECT NO_EXPORT ${ARG_UNPARSED_ARGUMENTS})
endif()
message(STATUS "Registering ${name} as a pass plugin (static build: ${LLVM_${name_upper}_LINK_INTO_TOOLS})")

8
polly/CMakeLists.txt
View File

@ -112,6 +112,14 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
)
endif()
# add_llvm_pass_plugin() already declares the option, but we need access to
# it earlier than that.
set(link_into_tools_default OFF)
if (LLVM_TOOL_POLLY_BUILD)
set(link_into_tools_default ON)
endif()
option(LLVM_POLLY_LINK_INTO_TOOLS "Statically link Polly into tools (if available)" ${link_into_tools_default})
add_definitions( -D_GNU_SOURCE )
add_subdirectory(docs)

10
polly/cmake/polly_macros.cmake
View File

@ -39,15 +39,21 @@ macro(add_polly_library name)
llvm_config(${name} ${LLVM_LINK_COMPONENTS})
endif( LLVM_LINK_COMPONENTS )
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LLVMPolly")
set(exports)
if (LLVM_POLLY_LINK_INTO_TOOLS)
set(exports EXPORT LLVMExports)
endif()
install(TARGETS ${name}
COMPONENT ${name}
EXPORT LLVMExports
${exports}
LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
add_llvm_install_targets(install-${name}
COMPONENT ${name})
endif()
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
if (LLVM_POLLY_LINK_INTO_TOOLS)
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
endif()
endmacro(add_polly_library)
macro(add_polly_loadable_module name)