[PATCH] D70866: Improve SLP code snippet
Sanjay Patel via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Dec 10 06:38:40 PST 2019
This revision was automatically updated to reflect the committed changes.
Closed by commit rGa0c558ee4cc0: [Docs] Improve SLP code snippet (authored by spatel).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D70866/new/
https://reviews.llvm.org/D70866
Files:
llvm/docs/Vectorizers.rst
Index: llvm/docs/Vectorizers.rst
===================================================================
--- llvm/docs/Vectorizers.rst
+++ llvm/docs/Vectorizers.rst
@@ -418,8 +418,10 @@
.. code-block:: c++
void foo(int a1, int a2, int b1, int b2, int *A) {
- A[0] = a1*(a1 + b1)/b1 + 50*b1/a1;
- A[1] = a2*(a2 + b2)/b2 + 50*b2/a2;
+ A[0] = a1*(a1 + b1);
+ A[1] = a2*(a2 + b2);
+ A[2] = a1*(a1 + b1);
+ A[3] = a2*(a2 + b2);
}
The SLP-vectorizer processes the code bottom-up, across basic blocks, in search of scalars to combine.
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