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Summary: Several places in DependenceAnalysis assumes both SCEVs in a subscript pair share the same integer type. For instance, isKnownPredicate calls SE->getMinusSCEV(X, Y) which asserts X and Y share the same type. However, DependenceAnalysis fails to ensure this assumption when producing a subscript pair, causing tests such as NonCanonicalizedSubscript to crash. With this patch, DependenceAnalysis runs unifySubscriptType before producing any subscript pair, ensuring the assumption. Test Plan: Added NonCanonicalizedSubscript.ll on which DependenceAnalysis before the fix crashed because subscripts have different types. Reviewers: spop, sebpop, jingyue Reviewed By: jingyue Subscribers: eliben, meheff, llvm-commits Differential Revision: http://reviews.llvm.org/D6289 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222100 91177308-0d34-0410-b5e6-96231b3b80d8 |
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autoconf | ||
bindings | ||
cmake | ||
docs | ||
examples | ||
include | ||
lib | ||
projects | ||
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 | ||
Makefile | ||
Makefile.common | ||
Makefile.config.in | ||
Makefile.rules | ||
README.txt |
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, 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.