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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187316 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2013-07-27 23:28:47 +00:00
parent ca4d2e60ea
commit 1aaaf34154
1 changed files with 1 additions and 0 deletions
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lib/Transforms/Vectorize/SLPVectorizer.cpp
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@ -900,6 +900,7 @@ int BoUpSLP::getTreeCost() {
// Don't vectorize tiny trees. Small load/store chains or consecutive stores
// of constants will be vectoried in SelectionDAG in MergeConsecutiveStores.
// The SelectionDAG vectorizer can only handle pairs (trees of height = 2).
if (VectorizableTree.size() < 3) {
if (!VectorizableTree.size()) {
assert(!ExternalUses.size() && "We should not have any external users");