[PATCH] D70866: Improve SLP code snippet

Leonardo Sandoval via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Dec 5 10:24:27 PST 2019


lsandov1 updated this revision to Diff 232385.
lsandov1 added a comment.

s/long/int as suggested by @spatel


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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