Speed up folding operations into loads.
llvm-svn: 19733
diff --git a/llvm/lib/Target/X86/X86ISelPattern.cpp b/llvm/lib/Target/X86/X86ISelPattern.cpp
index 0b64354..ae58afb 100644
--- a/llvm/lib/Target/X86/X86ISelPattern.cpp
+++ b/llvm/lib/Target/X86/X86ISelPattern.cpp
@@ -504,7 +504,8 @@
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.