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On 64-bit targets, Function has 4-bytes of padding in its struct layout. This uses the space for the intrinsic ID. It is set and recalculated whenever the function name is set. This is similar to the current behavior which clears the function from the intrinsic ID cache when its renamed. The intrinsic cache itself is removed as the only purpose was to speedup calls to getIntrinsicID() which now just reading the new field in the struct. Reviewed by Duncan. http://reviews.llvm.org/D9836 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237642 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're writing a package for LLVM, see docs/Packaging.rst for our suggestions.