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| author | Nadav Rotem <nrotem@apple.com> | 2013-04-14 07:42:25 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2013-04-14 07:42:25 +0000 |
| commit | a15dedba28fe83030122f1e9ded725f02719713e (patch) | |
| tree | 062bd87ea2399cc60acee1608cd11b911c75e0e6 /docs/Vectorizers.rst | |
| parent | 077462993636e828c7f047fbc980c8e3fa4e87c4 (diff) | |
| download | external_llvm-a15dedba28fe83030122f1e9ded725f02719713e.zip external_llvm-a15dedba28fe83030122f1e9ded725f02719713e.tar.gz external_llvm-a15dedba28fe83030122f1e9ded725f02719713e.tar.bz2 | |
Document the SLP infrastructure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179480 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/Vectorizers.rst')
| -rw-r--r-- | docs/Vectorizers.rst | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/docs/Vectorizers.rst b/docs/Vectorizers.rst index fa0f49c..42e03d2 100644 --- a/docs/Vectorizers.rst +++ b/docs/Vectorizers.rst @@ -329,3 +329,33 @@ into vector operations. } +.. _slp-vectorizer: + +The SLP Vectorizer +========================== + +The SLP vectorizer (superword-level parallelism) is a new experimental +infrastructure for vectorizing code and rolling loops. +A major focus of the work on the SLP vectorizer is to make it fast and +flexible. It is designed as a library that can be used by other passes. + +The SLP vectorizer is in early development stages but can already vectorize +and accelerate many programs in the LLVM test suite. + +======================= ============ +Benchmark Name Gain +======================= ============ +Misc/flops-7 -32.70% +Misc/matmul_f64_4x4 -23.23% +Olden/power -21.45% +Misc/flops-4 -14.90% +ASC_Sequoia/AMGmk -13.85% +TSVC/LoopRerolling-flt -11.76% +Misc/flops-6 -9.70% +Misc/flops-5 -8.54% +Misc/flops -8.12% +TSVC/NodeSplitting-dbl -6.96% +Misc-C++/sphereflake -6.74% +Ptrdist/yacr2 -6.31% +======================= ============ + |