From 7226158d7e3986e55b58214a749aa4eabb3fb6d5 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Tue, 20 Dec 2005 06:22:03 +0000
Subject: [PATCH] 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
---
 include/llvm/Target/TargetLowering.h        |  4 ++++
 lib/CodeGen/SelectionDAG/SelectionDAG.cpp   | 13 ++++++++-----
 lib/CodeGen/SelectionDAG/TargetLowering.cpp |  3 +++
 lib/Target/X86/X86ISelLowering.cpp          | 17 +++++++++++++++++
 lib/Target/X86/X86ISelLowering.h            |  4 ++++
 5 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 29572f99945..44e07e2503f 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -375,6 +375,10 @@ public:
   /// implement this.  The default implementation of this aborts.
   virtual SDOperand LowerOperation(SDOperand Op, SelectionDAG &DAG);
 
+  // getTargetNodeName() - This method returns the name of a target specific
+  // DAG node.
+  virtual const char *getTargetNodeName(unsigned Opcode) const;
+
   //===--------------------------------------------------------------------===//
   // Scheduler hooks
   //
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index ad8cca742a1..3438863c903 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 415084e2f1a..8e9524ef1e3 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 776ff6c8a91..496f10548cf 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 918b23420db..b1ce8e22b0e 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: