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When extracting a set of blocks make sure to inherit all of the target dependent attributes to make sure that the function will be valid for lowering. One example is the "target-features" attribute for x86, if the extracted region has functionality that relies on a specific feature it will fail to be lowered. This also allows for extracted functions to be valid for inlining, at least back into the parent function, as the target attributes are tested when inlining for compatibility. Patch by River Riddle! Differential Revision: https://reviews.llvm.org/D22713 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277315 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ 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.