diff options
Diffstat (limited to 'llvm/utils/TableGen/CodeGenDAGPatterns.cpp')
| -rw-r--r-- | llvm/utils/TableGen/CodeGenDAGPatterns.cpp | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp index 998cf3300bf..f1cde80952b 100644 --- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp +++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp @@ -4010,7 +4010,7 @@ void CodeGenDAGPatterns::ParsePatterns() { InstResults, InstImpResults); // Promote the xform function to be an explicit node if set. - TreePatternNodePtr DstPattern = Result.getOnlyTree(); + const TreePatternNodePtr &DstPattern = Result.getOnlyTree(); std::vector<TreePatternNodePtr> ResultNodeOperands; for (unsigned ii = 0, ee = DstPattern->getNumChildren(); ii != ee; ++ii) { TreePatternNodePtr OpNode = DstPattern->getChildShared(ii); @@ -4023,16 +4023,18 @@ void CodeGenDAGPatterns::ParsePatterns() { } ResultNodeOperands.push_back(OpNode); } - DstPattern = Result.getOnlyTree(); - if (!DstPattern->isLeaf()) - DstPattern = std::make_shared<TreePatternNode>(DstPattern->getOperator(), - ResultNodeOperands, - DstPattern->getNumTypes()); + + TreePatternNodePtr DstShared = + DstPattern->isLeaf() + ? DstPattern + : std::make_shared<TreePatternNode>(DstPattern->getOperator(), + ResultNodeOperands, + DstPattern->getNumTypes()); for (unsigned i = 0, e = Result.getOnlyTree()->getNumTypes(); i != e; ++i) - DstPattern->setType(i, Result.getOnlyTree()->getExtType(i)); + DstShared->setType(i, Result.getOnlyTree()->getExtType(i)); - TreePattern Temp(Result.getRecord(), DstPattern, false, *this); + TreePattern Temp(Result.getRecord(), DstShared, false, *this); Temp.InferAllTypes(); // A pattern may end up with an "impossible" type, i.e. a situation |
