mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
Mirror of https://github.com/RPCS3/llvm-mirror
b71aa89415
Summary: This patch teaches the loop vectorizer to vectorize loops with non header phis that have have outside uses. This is because the iteration dependence distance for these phis can be widened upto VF (similar to how we do for induction/reduction) if they do not have a cyclic dependence with header phis. When identifying reduction/induction/first order recurrence header phis, we already identify if there are any cyclic dependencies that prevents vectorization. The vectorizer is taught to extract the last element from the vectorized phi and update the scalar loop exit block phi to contain this extracted element from the vector loop. This patch can be extended to vectorize loops where instructions other than phis have outside uses. Reviewers: Ayal, mkuper, mssimpso, efriedma Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D50579 llvm-svn: 339703 |
||
|---|---|---|
| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| projects | ||
| resources | ||
| runtimes | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .arcconfig | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitattributes | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| configure | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| llvm.spec.in | ||
| LLVMBuild.txt | ||
| README.txt | ||
| RELEASE_TESTERS.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.