[llvm-commits] [llvm] r59783 - in /llvm/trunk/lib/CodeGen/SelectionDAG: DAGCombiner.cpp SelectionDAGBuild.cpp

[Bill Wendling]

Author: void
Date: Thu Nov 20 20:22:59 2008
New Revision: 59783

URL: http://llvm.org/viewvc/llvm-project?rev=59783&view=rev
Log:
Remove chains. Unnecessary.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp?rev=59783&r1=59782&r2=59783&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Thu Nov 20 20:22:59 2008
@@ -5148,7 +5148,6 @@
 }
 
 SDValue DAGCombiner::visitSADDO(SDNode *N) {
-  SDValue Chain = N->getOperand(2);
   SDValue LHS = N->getOperand(0);
   SDValue RHS = N->getOperand(1);
 
@@ -5157,17 +5156,16 @@
   SDValue Cmp = DAG.getSetCC(MVT::i1, Sum, LHS, ISD::SETLT);
   AddToWorkList(Cmp.getNode());
 
-  MVT ValueVTs[] = { LHS.getValueType(), MVT::i1, MVT::Other };
-  SDValue Ops[] = { Sum, Cmp, Chain };
+  MVT ValueVTs[] = { LHS.getValueType(), MVT::i1 };
+  SDValue Ops[] = { Sum, Cmp };
 
-  SDValue Merge = DAG.getMergeValues(DAG.getVTList(&ValueVTs[0], 3),
-                                     &Ops[0], 3);
+  SDValue Merge = DAG.getMergeValues(DAG.getVTList(&ValueVTs[0], 2),
+                                     &Ops[0], 2);
   SDNode *MNode = Merge.getNode();
 
   AddToWorkList(MNode);
   DAG.ReplaceAllUsesOfValueWith(SDValue(N, 0), SDValue(MNode, 0));
   DAG.ReplaceAllUsesOfValueWith(SDValue(N, 1), SDValue(MNode, 1));
-  DAG.ReplaceAllUsesOfValueWith(SDValue(N, 2), SDValue(MNode, 2));
 
   // Since the node is now dead, remove it from the graph.
   removeFromWorkList(N);

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp?rev=59783&r1=59782&r2=59783&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp Thu Nov 20 20:22:59 2008
@@ -4095,21 +4095,17 @@
 
   case Intrinsic::sadd_with_overflow: {
     // Convert to "ISD::SADDO" instruction.
-    SDValue Chain = getRoot();
     SDValue Op1 = getValue(I.getOperand(1));
     SDValue Op2 = getValue(I.getOperand(2));
     MVT Ty = Op1.getValueType();
 
-    MVT ValueVTs[] = { Ty, MVT::i1, MVT::Other };
-    SDValue Ops[] = { Op1, Op2, Chain };
+    MVT ValueVTs[] = { Ty, MVT::i1 };
+    SDValue Ops[] = { Op1, Op2 };
 
-    SDValue Result = DAG.getNode(ISD::SADDO, DAG.getVTList(&ValueVTs[0], 3),
-                                 &Ops[0], 3);
+    SDValue Result = DAG.getNode(ISD::SADDO, DAG.getVTList(&ValueVTs[0], 2),
+                                 &Ops[0], 2);
 
     setValue(&I, Result);
-
-    unsigned NumArgRegs = Result.getNode()->getNumValues() - 1;
-    DAG.setRoot(SDValue(Result.getNode(), NumArgRegs));
     return 0;
   }
   case Intrinsic::uadd_with_overflow: {