From 9ce0f779bc22f696eb1afbb6cc5095d8d2de0d50 Mon Sep 17 00:00:00 2001 From: Nadav Rotem Date: Fri, 26 Jul 2013 22:53:11 +0000 Subject: SLP Vectorizer: Disable the vectorization of non power of two chains, such as <3 x float>, because we dont have a good cost model for these types. llvm-svn: 187265 --- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp') diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp index 25f7a78f667..c1accd32c5c 100644 --- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -1664,23 +1664,7 @@ bool SLPVectorizer::vectorizeStoreChain(ArrayRef Chain, } } - if (Changed || ChainLen > VF) return Changed; - - // Handle short chains. This helps us catch types such as <3 x float> that - // are smaller than vector size. - R.buildTree(Chain); - - int Cost = R.getTreeCost(); - - if (Cost < CostThreshold) { - DEBUG(dbgs() << "SLP: Found store chain cost = " << Cost - << " for size = " << ChainLen << "\n"); - R.vectorizeTree(); - return true; - } - - return false; } bool SLPVectorizer::vectorizeStores(ArrayRef Stores, -- cgit v1.2.3