Added a hook to print out names of target specific DAG nodes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24877 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 32 insertions, 5 deletions

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index ad8cca742a..3438863c90 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1835,15 +1835,18 @@ const char *SDNode::getOperationName(const SelectionDAG *G) const {
     if (getOpcode() < ISD::BUILTIN_OP_END)
       return "<<Unknown DAG Node>>";
     else {
-      if (G)
+      if (G) {
         if (const TargetInstrInfo *TII = G->getTarget().getInstrInfo())
           if (getOpcode()-ISD::BUILTIN_OP_END < TII->getNumOpcodes())
             return TII->getName(getOpcode()-ISD::BUILTIN_OP_END);
 
-      std::string Name
-        = "<<Unknown Target Node:"
-        + itostr((int)getOpcode()-ISD::BUILTIN_OP_END) + ">>";
-      return Name.c_str();
+        TargetLowering &TLI = G->getTargetLoweringInfo();
+        const char *Name =
+          TLI.getTargetNodeName(getOpcode());
+        if (Name) return Name;
+      }
+
+      return "<<Unknown Target Node>>";
     }
    
   case ISD::PCMARKER:      return "PCMarker";
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 415084e2f1..8e9524ef1e 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -122,3 +122,6 @@ void TargetLowering::computeRegisterProperties() {
   TransformToType[MVT::f64] = MVT::f64;
 }
 
+const char *TargetLowering::getTargetNodeName(unsigned Opcode) const {
+  return NULL;
+}
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 776ff6c8a9..496f10548c 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -970,3 +970,20 @@ SDOperand X86TargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
   }
   }
 }
+
+const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const {
+  switch (Opcode) {
+  default: return NULL;
+  case X86ISD::FILD64m:            return "X86ISD::FILD64m";
+  case X86ISD::FP_TO_INT16_IN_MEM: return "X86ISD::FP_TO_INT16_IN_MEM";
+  case X86ISD::FP_TO_INT32_IN_MEM: return "X86ISD::FP_TO_INT32_IN_MEM";
+  case X86ISD::FP_TO_INT64_IN_MEM: return "X86ISD::FP_TO_INT64_IN_MEM";
+  case X86ISD::CALL:               return "X86ISD::CALL";
+  case X86ISD::TAILCALL:           return "X86ISD::TAILCALL";
+  case X86ISD::RDTSC_DAG:          return "X86ISD::RDTSC_DAG";
+  case X86ISD::CMP:                return "X86ISD::CMP";
+  case X86ISD::TEST:               return "X86ISD::TEST";
+  case X86ISD::CMOV:               return "X86ISD::CMOV";
+  case X86ISD::BRCOND:             return "X86ISD::BRCOND";
+  }
+}
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index 918b23420d..b1ce8e22b0 100644
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -123,6 +123,10 @@ namespace llvm {
     LowerFrameReturnAddress(bool isFrameAddr, SDOperand Chain, unsigned Depth,
                             SelectionDAG &DAG);
 
+    /// getTargetNodeName - This method returns the name of a target specific
+    /// DAG node.
+    virtual const char *getTargetNodeName(unsigned Opcode) const;
+
     SDOperand getReturnAddressFrameIndex(SelectionDAG &DAG);
 
   private: