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Speed up folding operations into loads.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19733 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-21 21:43:02 +00:00
parent 0442fbfadb
commit fb0f53f9c1
1 changed files with 2 additions and 1 deletions
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3
lib/Target/X86/X86ISelPattern.cpp
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@ -504,7 +504,8 @@ static bool NodeTransitivelyUsesValue(SDOperand N, SDOperand Op,
std::set<SDNode*> &Visited) {
if (N == Op) return true; // Found it.
SDNode *Node = N.Val;
if (Node->getNumOperands() == 0) return false; // Leaf?
if (Node->getNumOperands() == 0 || // Leaf?
Node->getNodeDepth() <= Op.getNodeDepth()) return false; // Can't find it?
if (!Visited.insert(Node).second) return false; // Already visited?
// Recurse for the first N-1 operands.