Add unique id to debug location for debug label use (work in progress.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25096 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 24 insertions, 15 deletions

diff --git a/lib/CodeGen/MachineDebugInfo.cpp b/lib/CodeGen/MachineDebugInfo.cpp
index 2cd30fad18..fc88b8ca00 100644
--- a/lib/CodeGen/MachineDebugInfo.cpp
+++ b/lib/CodeGen/MachineDebugInfo.cpp
@@ -50,6 +50,7 @@ namespace llvm {
   /// doFinalization - Tear down the debug state after completion of a module.
   ///
   bool MachineDebugInfo::doFinalization() {
+    
     return true;
   }
 
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 30a4c9f637..1cfa305d85 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -2117,7 +2117,8 @@ SDOperand DAGCombiner::visitDEBUGLOC(SDNode *N) {
     return DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Chain.getOperand(0),
                                                    N->getOperand(1),
                                                    N->getOperand(2),
-                                                   N->getOperand(3));
+                                                   N->getOperand(3),
+                                                   N->getOperand(4));
   }
   
   return SDOperand();
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index af2c4ba139..bd8c50a53d 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -628,8 +628,10 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
           cast<StringSDNode>(Node->getOperand(3))->getValue();
         const std::string &dirname = 
           cast<StringSDNode>(Node->getOperand(4))->getValue();
-        unsigned id = DebugInfo.RecordSource(fname, dirname);
-        Ops.push_back(DAG.getConstant(id, MVT::i32));  // source file id
+        unsigned srcfile = DebugInfo.RecordSource(fname, dirname);
+        Ops.push_back(DAG.getConstant(srcfile, MVT::i32));  // source file id
+        unsigned id = DebugInfo.NextUniqueID();
+        Ops.push_back(DAG.getConstant(id, MVT::i32));  // label id
         Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Ops);
       } else {
         Result = Tmp1;  // chain
@@ -659,22 +661,27 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
     break;
     
   case ISD::DEBUG_LOC:
-    assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!");
+    assert(Node->getNumOperands() == 5 && "Invalid DEBUG_LOC node!");
     switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) {
     case TargetLowering::Promote:
     case TargetLowering::Expand:
     default: assert(0 && "This action is not supported yet!");
-    case TargetLowering::Legal:
-      Tmp1 = LegalizeOp(Node->getOperand(0));  // Legalize the chain.
-      Tmp2 = LegalizeOp(Node->getOperand(1));  // Legalize the line #.
-      Tmp3 = LegalizeOp(Node->getOperand(2));  // Legalize the col #.
-      Tmp4 = LegalizeOp(Node->getOperand(3));  // Legalize the source file id.
-      
-      if (Tmp1 != Node->getOperand(0) ||
-          Tmp2 != Node->getOperand(1) ||
-          Tmp3 != Node->getOperand(2) ||
-          Tmp4 != Node->getOperand(3)) {
-        Result = DAG.getNode(ISD::DEBUG_LOC,MVT::Other, Tmp1, Tmp2, Tmp3, Tmp4);
+    case TargetLowering::Legal: {
+        SDOperand Tmp5;
+        Tmp1 = LegalizeOp(Node->getOperand(0));  // Legalize the chain.
+        Tmp2 = LegalizeOp(Node->getOperand(1));  // Legalize the line #.
+        Tmp3 = LegalizeOp(Node->getOperand(2));  // Legalize the col #.
+        Tmp4 = LegalizeOp(Node->getOperand(3));  // Legalize the source file id.
+        Tmp5 = LegalizeOp(Node->getOperand(4));  // Legalize the label id.
+        
+        if (Tmp1 != Node->getOperand(0) ||
+            Tmp2 != Node->getOperand(1) ||
+            Tmp3 != Node->getOperand(2) ||
+            Tmp4 != Node->getOperand(3) ||
+            Tmp5 != Node->getOperand(4)) {
+          Result =
+           DAG.getNode(ISD::DEBUG_LOC,MVT::Other, Tmp1, Tmp2, Tmp3, Tmp4, Tmp5);
+        }
       }
       break;
     }