From 9468a9b6beed640eca64274c8dcc5aed3b94450b Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Tue, 16 Sep 2008 21:12:30 +0000
Subject: - Change "ExternalSymbolSDNode" to "SymbolSDNode". - Add linkage to
 SymbolSDNode (default to external). - Change ISD::ExternalSymbol to
 ISD::Symbol. - Change ISD::TargetExternalSymbol to ISD::TargetSymbol

These changes pave the way to allowing SymbolSDNodes with non-external linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56249 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/ScheduleDAG.h       |  2 +-
 include/llvm/CodeGen/SelectionDAG.h      | 11 +++++++----
 include/llvm/CodeGen/SelectionDAGNodes.h | 26 ++++++++++++++------------
 3 files changed, 22 insertions(+), 17 deletions(-)

(limited to 'include/llvm')

diff --git a/include/llvm/CodeGen/ScheduleDAG.h b/include/llvm/CodeGen/ScheduleDAG.h
index 67f3dbb69f..bca5712737 100644
--- a/include/llvm/CodeGen/ScheduleDAG.h
+++ b/include/llvm/CodeGen/ScheduleDAG.h
@@ -278,7 +278,7 @@ namespace llvm {
       if (isa<FrameIndexSDNode>(Node))     return true;
       if (isa<ConstantPoolSDNode>(Node))   return true;
       if (isa<JumpTableSDNode>(Node))      return true;
-      if (isa<ExternalSymbolSDNode>(Node)) return true;
+      if (isa<SymbolSDNode>(Node))         return true;
       if (isa<MemOperandSDNode>(Node))     return true;
       if (Node->getOpcode() == ISD::EntryToken) return true;
       return false;
diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index 15d0edc3d8..b2611dfa79 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -282,8 +282,11 @@ public:
     return getConstantPool(C, VT, Align, Offset, true);
   }
   SDValue getBasicBlock(MachineBasicBlock *MBB);
-  SDValue getExternalSymbol(const char *Sym, MVT VT);
-  SDValue getTargetExternalSymbol(const char *Sym, MVT VT);
+  SDValue getSymbol(const char *Sym, MVT VT,
+                   GlobalValue::LinkageTypes LT = GlobalValue::ExternalLinkage);
+  SDValue getTargetSymbol(const char *Sym, MVT VT,
+                          GlobalValue::LinkageTypes LT =
+                            GlobalValue::ExternalLinkage);
   SDValue getArgFlags(ISD::ArgFlagsTy Flags);
   SDValue getValueType(MVT);
   SDValue getRegister(unsigned Reg, MVT VT);
@@ -758,8 +761,8 @@ private:
 
   std::vector<SDNode*> ValueTypeNodes;
   std::map<MVT, SDNode*, MVT::compareRawBits> ExtendedValueTypeNodes;
-  StringMap<SDNode*> ExternalSymbols;
-  StringMap<SDNode*> TargetExternalSymbols;
+  StringMap<SDNode*> Symbols;
+  StringMap<SDNode*> TargetSymbols;
 };
 
 template <> struct GraphTraits<SelectionDAG*> : public GraphTraits<SDNode*> {
diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index 7cd9eef2ab..4ba5603fab 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -21,6 +21,7 @@
 
 #include "llvm/Value.h"
 #include "llvm/Constants.h"
+#include "llvm/GlobalValue.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/GraphTraits.h"
 #include "llvm/ADT/iterator.h"
@@ -89,7 +90,7 @@ namespace ISD {
     BasicBlock, VALUETYPE, ARG_FLAGS, CONDCODE, Register,
     Constant, ConstantFP,
     GlobalAddress, GlobalTLSAddress, FrameIndex,
-    JumpTable, ConstantPool, ExternalSymbol,
+    JumpTable, ConstantPool, Symbol,
 
     // The address of the GOT
     GLOBAL_OFFSET_TABLE,
@@ -133,7 +134,7 @@ namespace ISD {
     TargetFrameIndex,
     TargetJumpTable,
     TargetConstantPool,
-    TargetExternalSymbol,
+    TargetSymbol,
     
     /// RESULT = INTRINSIC_WO_CHAIN(INTRINSICID, arg1, arg2, ...)
     /// This node represents a target intrinsic function with no side effects.
@@ -487,7 +488,7 @@ namespace ISD {
     // INLINEASM - Represents an inline asm block.  This node always has two
     // return values: a chain and a flag result.  The inputs are as follows:
     //   Operand #0   : Input chain.
-    //   Operand #1   : a ExternalSymbolSDNode with a pointer to the asm string.
+    //   Operand #1   : A SymbolSDNode with a pointer to the asm string.
     //   Operand #2n+2: A RegisterNode.
     //   Operand #2n+3: A TargetConstant, indicating if the reg is a use/def
     //   Operand #last: Optional, an incoming flag.
@@ -2045,23 +2046,24 @@ public:
   }
 };
 
-class ExternalSymbolSDNode : public SDNode {
+class SymbolSDNode : public SDNode {
   const char *Symbol;
+  GlobalValue::LinkageTypes Linkage;
   virtual void ANCHOR();  // Out-of-line virtual method to give class a home.
 protected:
   friend class SelectionDAG;
-  ExternalSymbolSDNode(bool isTarget, const char *Sym, MVT VT)
-    : SDNode(isTarget ? ISD::TargetExternalSymbol : ISD::ExternalSymbol,
-             getSDVTList(VT)), Symbol(Sym) {
-  }
+  SymbolSDNode(bool isTarget, const char *Sym, MVT VT,
+               GlobalValue::LinkageTypes L)
+    : SDNode(isTarget ? ISD::TargetSymbol : ISD::Symbol,
+             getSDVTList(VT)), Symbol(Sym), Linkage(L) {}
 public:
-
   const char *getSymbol() const { return Symbol; }
+  GlobalValue::LinkageTypes getLinkage() const { return Linkage; }
 
-  static bool classof(const ExternalSymbolSDNode *) { return true; }
+  static bool classof(const SymbolSDNode *) { return true; }
   static bool classof(const SDNode *N) {
-    return N->getOpcode() == ISD::ExternalSymbol ||
-           N->getOpcode() == ISD::TargetExternalSymbol;
+    return N->getOpcode() == ISD::Symbol ||
+           N->getOpcode() == ISD::TargetSymbol;
   }
 };
 
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