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[cmake] Switch index store flag to opt-in #9684

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merged 1 commit into from
Dec 4, 2024
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[cmake] Switch index store flag to opt-in #9684

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6 changes: 3 additions & 3 deletions llvm/cmake/modules/HandleLLVMOptions.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -910,9 +910,9 @@ if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND NOT LLVM_ENABLE_WARNINGS)
append("-w" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()

# Enable '-index-store-path' on a Debug build, if the compiler supports it and for non-IDE generators.
option(LLVM_DISABLE_INDEX_STORE "Disable '-index-store-path' flag" Off)
if (NOT LLVM_DISABLE_INDEX_STORE AND NOT XCODE AND NOT MSVC_IDE AND uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
# Allow enabling '-index-store-path' for non-IDE generators if the compiler supports it.
option(LLVM_ENABLE_INDEX_STORE "Enable '-index-store-path' flag" Off)
if (LLVM_ENABLE_INDEX_STORE AND NOT XCODE AND NOT MSVC_IDE)
set(INDEX_DATA_STORE_PATH "${PROJECT_BINARY_DIR}/IndexStore" CACHE STRING "Index store path")

check_c_compiler_flag("-Werror -index-store-path \"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/IndexStore\"" "C_SUPPORTS_INDEX_STORE")
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