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Peter Collingbourne
ea21100272
IRGen: Move vtable load after argument evaluation.
This change reduces the live range of the loaded function pointer, resulting in a slight code size decrease (~10KB in clang), and also improves the security of CFI for virtual calls by making it less likely that the function pointer will be spilled, and ensuring that it is not spilled across a function call boundary. Fixes PR35353. Differential Revision: https://reviews.llvm.org/D42725 llvm-svn: 324286
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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.
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