mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-02-01 05:01:59 +01:00
5bba48ed3c
Summary: ThinLTO imports alias as a copy of a aliasee, so when we import such functions with type tests we will need type ids used by function. However after D49565 we pick types only during processing of FunctionSummary which is not happening for such aliesees. Example: Unit U1 with a type, a functions F with the type check, and an alias A to the function. Unit U2 with only call to the alias A. In particular, this happens when we use -mconstructor-aliases, which is default. So if c++ unit only creates instance of the class, without calling any other methods it will lack of necessary type ids, which will result in false CFI reports. Reviewers: tejohnson, eugenis Subscribers: pcc, mehdi_amini, inglorion, eraman, hiraditya, steven_wu, dexonsmith, llvm-commits Differential Revision: https://reviews.llvm.org/D52201 llvm-svn: 342574
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.