40c34781b5
This is a re-commit of r190764, with an extra check to make sure that we're not performing the transformation on illegal types (a small test case has been added for this as well). Original commit message: The PPC backend uses a target-specific DAG combine to turn unaligned Altivec loads into a permutation-based sequence when possible. Unfortunately, the target-specific DAG combine is not always called on all loads of interest (sometimes the routines in DAGCombine call CombineTo such that the new node and users are not added to the worklist); allowing the combine to trigger early (before type legalization) mitigates this problem. Because the autovectorizers only create legal vector types, I don't expect a lot of cases where this optimization is enabled by type legalization in practice. llvm-svn: 190771 |
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| include | ||
| lib | ||
| projects | ||
| runtime | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .arcconfig | ||
| .clang-format | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| LLVMBuild.txt | ||
| Makefile | ||
| Makefile.common | ||
| Makefile.config.in | ||
| Makefile.rules | ||
| README.txt | ||
| configure | ||
| llvm.spec.in | ||
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.