nixpkgs/pkgs/development/compilers/llvm/10/llvm-extension-handling.patch
Gabor Greif 3a84353edb llvmPackages_10: rc2 -> rc3
http://lists.llvm.org/pipermail/llvm-dev/2020-March/139729.html

Additionally cherry-picked 3 commits from `llvm-project/master`:
- llvm/llvm-project@d21664c
- llvm/llvm-project@3a0f6e6
- llvm/llvm-project@87dac7d

such that clang can automatically pick up the polly plugin from the
`llvm-polly` build.
2020-03-07 20:11:59 +01:00

147 lines
6.9 KiB
Diff

Compressed diff from
```
git show d21664cce1db8debe2528f36b1fbd2b8af9c9401 87dac7da68ea1e0adac78c59ef1891dcf9632b67 3a0f6e699bb6d96dc62dce6faef20ac26cf103fd
```
with the purpose of avoiding linker errors arising in the polly-flavoured clang.
diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
index a02c2a5a23f..faf8f561faa 100644
--- llvm/CMakeLists.txt
+++ llvm/CMakeLists.txt
@@ -1069,6 +1069,7 @@ endif()
# after all targets are created.
include(LLVMDistributionSupport)
llvm_distribution_add_targets()
+process_llvm_pass_plugins(GEN_CONFIG)
# This allows us to deploy the Universal CRT DLLs by passing -DCMAKE_INSTALL_UCRT_LIBRARIES=ON to CMake
if (MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows" AND CMAKE_INSTALL_UCRT_LIBRARIES)
@@ -1093,5 +1094,3 @@ endif()
if (LLVM_INCLUDE_UTILS AND LLVM_INCLUDE_TOOLS)
add_subdirectory(utils/llvm-locstats)
endif()
-
-process_llvm_pass_plugins()
diff --git a/llvm/cmake/modules/AddLLVM.cmake b/llvm/cmake/modules/AddLLVM.cmake
index fd69786544a..8fbb33a22fd 100644
--- llvm/cmake/modules/AddLLVM.cmake
+++ llvm/cmake/modules/AddLLVM.cmake
@@ -884,53 +884,71 @@ function(add_llvm_pass_plugin name)
if (TARGET intrinsics_gen)
add_dependencies(obj.${name} intrinsics_gen)
endif()
- message(STATUS "Registering ${name} as a pass plugin (static build: ${LLVM_${name_upper}_LINK_INTO_TOOLS})")
- set_property(GLOBAL APPEND PROPERTY LLVM_COMPILE_EXTENSIONS ${name})
+ set_property(GLOBAL APPEND PROPERTY LLVM_STATIC_EXTENSIONS ${name})
elseif(NOT ARG_NO_MODULE)
add_llvm_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
else()
add_llvm_library(${name} OBJECT ${ARG_UNPARSED_ARGUMENTS})
endif()
+ message(STATUS "Registering ${name} as a pass plugin (static build: ${LLVM_${name_upper}_LINK_INTO_TOOLS})")
endfunction(add_llvm_pass_plugin)
-# Generate X Macro file for extension handling. It provides a
-# HANDLE_EXTENSION(extension_namespace, ExtensionProject) call for each extension
-# allowing client code to define HANDLE_EXTENSION to have a specific code be run for
-# each extension.
+# process_llvm_pass_plugins([GEN_CONFIG])
+#
+# Correctly set lib dependencies between plugins and tools, based on tools
+# registered with the ENABLE_PLUGINS option.
+#
+# if GEN_CONFIG option is set, also generate X Macro file for extension
+# handling. It provides a HANDLE_EXTENSION(extension_namespace, ExtensionProject)
+# call for each extension allowing client code to define
+# HANDLE_EXTENSION to have a specific code be run for each extension.
#
-# Also correctly set lib dependencies between plugins and tools.
function(process_llvm_pass_plugins)
- get_property(LLVM_EXTENSIONS GLOBAL PROPERTY LLVM_COMPILE_EXTENSIONS)
- file(WRITE "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp" "//extension handlers\n")
- foreach(llvm_extension ${LLVM_EXTENSIONS})
- string(TOLOWER ${llvm_extension} llvm_extension_lower)
-
- string(TOUPPER ${llvm_extension} llvm_extension_upper)
- string(SUBSTRING ${llvm_extension_upper} 0 1 llvm_extension_upper_first)
- string(SUBSTRING ${llvm_extension_lower} 1 -1 llvm_extension_lower_tail)
- string(CONCAT llvm_extension_project ${llvm_extension_upper_first} ${llvm_extension_lower_tail})
-
- if(LLVM_${llvm_extension_upper}_LINK_INTO_TOOLS)
- file(APPEND "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp" "HANDLE_EXTENSION(${llvm_extension_project})\n")
-
- get_property(llvm_plugin_targets GLOBAL PROPERTY LLVM_PLUGIN_TARGETS)
- foreach(llvm_plugin_target ${llvm_plugin_targets})
- set_property(TARGET ${llvm_plugin_target} APPEND PROPERTY LINK_LIBRARIES ${llvm_extension})
- set_property(TARGET ${llvm_plugin_target} APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${llvm_extension})
- endforeach()
- else()
- add_llvm_library(${llvm_extension_lower} MODULE obj.${llvm_extension_lower})
- endif()
+ cmake_parse_arguments(ARG
+ "GEN_CONFIG" "" ""
+ ${ARGN})
+ if(ARG_GEN_CONFIG)
+ get_property(LLVM_STATIC_EXTENSIONS GLOBAL PROPERTY LLVM_STATIC_EXTENSIONS)
+ else()
+ include(LLVMConfigExtensions)
+ endif()
+
+ # Add static plugins to each plugin target.
+ foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
+ get_property(llvm_plugin_targets GLOBAL PROPERTY LLVM_PLUGIN_TARGETS)
+ foreach(llvm_plugin_target ${llvm_plugin_targets})
+ set_property(TARGET ${llvm_plugin_target} APPEND PROPERTY LINK_LIBRARIES ${llvm_extension})
+ set_property(TARGET ${llvm_plugin_target} APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${llvm_extension})
+ endforeach()
endforeach()
- file(APPEND "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp" "#undef HANDLE_EXTENSION\n")
- # only replace if there's an actual change
- execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
- "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp"
- "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def")
- file(REMOVE "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp")
+ # Eventually generate the extension header, and store config to a cmake file
+ # for usage in third-party configuration.
+ if(ARG_GEN_CONFIG)
+ set(LLVM_INSTALL_PACKAGE_DIR lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm)
+ set(llvm_cmake_builddir "${LLVM_BINARY_DIR}/${LLVM_INSTALL_PACKAGE_DIR}")
+ file(WRITE
+ "${llvm_cmake_builddir}/LLVMConfigExtensions.cmake"
+ "set(LLVM_STATIC_EXTENSIONS ${LLVM_STATIC_EXTENSIONS})")
+ install(FILES
+ ${llvm_cmake_builddir}/LLVMConfigExtensions.cmake
+ DESTINATION ${LLVM_INSTALL_PACKAGE_DIR}
+ COMPONENT cmake-exports)
+
+ file(WRITE "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp" "//extension handlers\n")
+ foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
+ file(APPEND "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp" "HANDLE_EXTENSION(${llvm_extension})\n")
+ endforeach()
+ file(APPEND "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp" "#undef HANDLE_EXTENSION\n")
+
+ # only replace if there's an actual change
+ execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
+ "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp"
+ "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def")
+ file(REMOVE "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def.tmp")
+ endif()
endfunction()
function(export_executable_symbols target)
diff --git a/llvm/cmake/modules/CMakeLists.txt b/llvm/cmake/modules/CMakeLists.txt
index 9cf22b436fa..af757d6199a 100644
--- llvm/cmake/modules/CMakeLists.txt
+++ llvm/cmake/modules/CMakeLists.txt
@@ -136,6 +136,7 @@ if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
FILES_MATCHING PATTERN *.cmake
PATTERN .svn EXCLUDE
PATTERN LLVMConfig.cmake EXCLUDE
+ PATTERN LLVMConfigExtensions.cmake EXCLUDE
PATTERN LLVMConfigVersion.cmake EXCLUDE
PATTERN LLVM-Config.cmake EXCLUDE
PATTERN GetHostTriple.cmake EXCLUDE)