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e235fcb582
Bolt currently links and initializes all LLVM targets. This substantially increases the binary size, and link time if LTO is used. Instead, only link the targets specified by BOLT_TARGETS_TO_BUILD. We also have to only initialize those targets, so generate a TargetConfig.def file with the necessary information. The way the initialization is done mirrors what llvm-exegesis does. This reduces llvm-bolt size from 137MB to 78MB for me.
36 lines
561 B
CMake
36 lines
561 B
CMake
set(LLVM_LINK_COMPONENTS
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${BOLT_TARGETS_TO_BUILD}
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MC
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Object
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Support
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)
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if (BOLT_ENABLE_RUNTIME)
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set(BOLT_DRIVER_DEPS "bolt_rt")
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else()
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set(BOLT_DRIVER_DEPS "")
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endif()
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add_bolt_tool(llvm-bolt
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llvm-bolt.cpp
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DISABLE_LLVM_LINK_LLVM_DYLIB
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DEPENDS
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${BOLT_DRIVER_DEPS}
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)
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target_link_libraries(llvm-bolt
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PRIVATE
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LLVMBOLTProfile
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LLVMBOLTRewrite
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LLVMBOLTUtils
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)
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add_bolt_tool_symlink(perf2bolt llvm-bolt)
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add_bolt_tool_symlink(llvm-boltdiff llvm-bolt)
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add_dependencies(bolt llvm-bolt)
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include_directories(${BOLT_SOURCE_DIR}/lib)
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