Changes in directory llvm/lib/CodeGen/SelectionDAG:
SelectionDAG.cpp updated: 1.253 -> 1.254
---
Log message:
* Added SDNode::isOnlyUse().
* Fix hasNUsesOfValue(), it should be const.
---
Diffs of the changes: (+18 -3)
SelectionDAG.cpp | 21 ++++++++++++++++++---
1 files changed, 18 insertions(+), 3 deletions(-)
Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:1.253
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:1.254
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:1.253 Fri Feb 3
00:51:34 2006
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp Sun Feb 5 00:29:23 2006
@@ -2177,7 +2177,7 @@
/// hasNUsesOfValue - Return true if there are exactly NUSES uses of the
/// indicated value. This method ignores uses of other values defined by this
/// operation.
-bool SDNode::hasNUsesOfValue(unsigned NUses, unsigned Value) {
+bool SDNode::hasNUsesOfValue(unsigned NUses, unsigned Value) const {
assert(Value < getNumValues() && "Bad value!");
// If there is only one value, this is easy.
@@ -2185,11 +2185,11 @@
return use_size() == NUses;
if (Uses.size() < NUses) return false;
- SDOperand TheValue(this, Value);
+ SDOperand TheValue(const_cast<SDNode *>(this), Value);
std::set<SDNode*> UsersHandled;
- for (std::vector<SDNode*>::iterator UI = Uses.begin(), E = Uses.end();
+ for (std::vector<SDNode*>::const_iterator UI = Uses.begin(), E = Uses.end();
UI != E; ++UI) {
SDNode *User = *UI;
if (User->getNumOperands() == 1 ||
@@ -2207,6 +2207,21 @@
}
+// 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)
{
+ SDNode *User = *I;
+ if (User == this)
+ Seen = true;
+ else
+ return false;
+ }
+
+ return Seen;
+}
+
+
const char *SDNode::getOperationName(const SelectionDAG *G) const {
switch (getOpcode()) {
default:
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