Changes in directory llvm/lib/CodeGen/SelectionDAG:
SelectionDAG.cpp updated: 1.367 -> 1.368
---
Log message:
Fix comments.
---
Diffs of the changes: (+8 -3)
SelectionDAG.cpp | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:1.367
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:1.368
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:1.367 Thu Nov 2
21:05:24 2006
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp Fri Nov 3 01:31:32 2006
@@ -2534,7 +2534,8 @@
}
-// isOnlyUse - Return true if this node is the only use of N.
+/// isOnlyUse - Return true if this node is the only use of N.
+///
bool SDNode::isOnlyUse(SDNode *N) const {
bool Seen = false;
for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I)
{
@@ -2548,7 +2549,8 @@
return Seen;
}
-// isOperand - Return true if this node is an operand of N.
+/// isOperand - Return true if this node is an operand of N.
+///
bool SDOperand::isOperand(SDNode *N) const {
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
if (*this == N->getOperand(i))
@@ -2578,7 +2580,10 @@
}
}
-// isPredecessor - Return true if this node is a predecessor of N.
+/// isPredecessor - Return true if this node is a predecessor of N. This node
+/// is either an operand of N or it can be reached by recursively traversing
+/// up the operands.
+/// NOTE: this is an expensive method. Use it carefully.
bool SDNode::isPredecessor(SDNode *N) const {
std::set<SDNode *> Visited;
bool found = false;
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