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0f49a66c42
This change reboots SCEV's current (off by default) verification logic to avoid false failures. Instead of stringifying trip counts, it maps old and new trip counts to the same ScalarEvolution "universe" and asks ScalarEvolution to compute the difference between them. If the difference comes out to be a non-zero constant, then (barring some corner cases) we *know* we messed up. I've not yet enabled this by default since it hits an exponential time issue in SCEV, but once I fix that, I'll flip it on by default in EXPENSIVE_CHECKS builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301146 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| include | ||
| lib | ||
| projects | ||
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| runtimes | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .arcconfig | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| configure | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| llvm.spec.in | ||
| LLVMBuild.txt | ||
| README.txt | ||
| RELEASE_TESTERS.TXT | ||
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.