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The !associated metadata may be attached to a global object declaration with a single argument that references another global object. This metadata prevents discarding of the global object in linker GC unless the referenced object is also discarded. Furthermore, when a function symbol is discarded by the linker, setting up !associated metadata allows linker to discard counters, data and values associated with that function symbol. This is not possible today because there's metadata to guide the linker. This approach is also used by other instrumentations like sanitizers. Note that !associated metadata is only supported by ELF, it does not have any effect on non-ELF targets. Differential Revision: https://reviews.llvm.org/D76802 |
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| include | ||
| lib | ||
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| runtimes | ||
| test | ||
| tools | ||
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| utils | ||
| .clang-format | ||
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| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| configure | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| llvm.spec.in | ||
| LLVMBuild.txt | ||
| README.txt | ||
| RELEASE_TESTERS.TXT | ||
The LLVM Compiler Infrastructure ================================ This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you are writing a package for LLVM, see docs/Packaging.rst for our suggestions.