forked from OSchip/llvm-project
e297006d6f
MBBs are not allowed to have non-terminator instructions after the first terminator. Currently in some cases (see the modified test), EmitSchedule can add DBG_VALUEs after the last terminator, for example when referring a debug value that gets folded into a TCRETURN instruction on ARM. This patch updates EmitSchedule to move inserted DBG_VALUEs just before the first terminator. I am not sure if there are terminators produce values that can in turn be used by a DBG_VALUE. In that case, moving the DBG_VALUE might result in referencing an undefined register. But in any case, it seems like currently there is no way to insert a proper DBG_VALUEs for such registers anyways. Alternatively it might make sense to just remove those extra DBG_VALUES. I am not too familiar with the details of debug info in the backend and would appreciate any suggestions on how to address the issue in the best possible way. Reviewers: vsk, aprantl, jpaquette, efriedma, paquette Reviewed By: aprantl Differential Revision: https://reviews.llvm.org/D83561 |
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| tools | ||
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| CREDITS.TXT | ||
| LICENSE.TXT | ||
| LLVMBuild.txt | ||
| README.txt | ||
| RELEASE_TESTERS.TXT | ||
| configure | ||
| llvm.spec.in | ||
README.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.