Chain can be any operand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30611 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 9a78459..32a81a0 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -3956,17 +3956,15 @@
/// hasChainUsers - Returns true if one of the users of a load node has the
/// chain result as an operand.
bool DAGCombiner::hasChainUsers(SDNode *Load) {
- // Don't even bother if the load only has one user (conservatively the value.)
- if (!Load->hasOneUse()) {
- SDOperand Chain(Load, 1); // The load's chain result.
-
- // For each user of the load.
- for (SDNode::use_iterator UI = Load->use_begin(), UE = Load->use_end();
- UI != UE; ++UI) {
-
- // Chain will be the first operand.
- if ((*UI)->getOperand(0) == Chain)
- return true;
+ SDOperand Chain(Load, 1); // The load's chain result.
+
+ // For each user of the load.
+ for (SDNode::use_iterator UI = Load->use_begin(), UE = Load->use_end();
+ UI != UE; ++UI) {
+ const SDNode *User = *UI;
+
+ for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) {
+ if (User->getOperand(i) == Chain) return true;
}
}