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refactor tryToVectorizePair to a new method that supports vectorization of lists.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179932 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2013-04-20 07:22:58 +00:00
parent d7e8cce287
commit 444e33e898
1 changed files with 8 additions and 0 deletions
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8
lib/Transforms/Vectorize/SLPVectorizer.cpp
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@ -127,6 +127,9 @@ private:
/// \brief Try to vectorize a chain that starts at two arithmetic instrs.
bool tryToVectorizePair(Value *A, Value *B, BoUpSLP &R);
/// \brief Try to vectorize a list of operands.
bool tryToVectorizeList(BoUpSLP::ValueList &VL, BoUpSLP &R);
/// \brief Try to vectorize a chain that may start at the operands of \V;
bool tryToVectorize(BinaryOperator *V, BoUpSLP &R);
@ -174,6 +177,11 @@ bool SLPVectorizer::tryToVectorizePair(Value *A, Value *B, BoUpSLP &R) {
BoUpSLP::ValueList VL;
VL.push_back(A);
VL.push_back(B);
return tryToVectorizeList(VL, R);
}
bool SLPVectorizer::tryToVectorizeList(BoUpSLP::ValueList &VL, BoUpSLP &R) {
DEBUG(dbgs()<<"SLP: Vectorizing a list of length = " << VL.size() << ".\n");
int Cost = R.getTreeCost(VL);
int ExtrCost = R.getScalarizationCost(VL);
DEBUG(dbgs()<<"SLP: Cost of pair:" << Cost <<