PseudoSourceValue: Transform the mips subclass to target independent subclasses

This commit transforms the mips-specific 'MipsCallEntry' subclass of the
'PseudoSourceValue' class into two, target-independent subclasses named
'GlobalValuePseudoSourceValue' and 'ExternalSymbolPseudoSourceValue'.

This change makes it easier to serialize the pseudo source values by removing
target-specific pseudo source values.

Reviewers: Akira Hatanaka
llvm-svn: 244698

1 files changed, 5 insertions, 30 deletions

diff --git a/llvm/lib/Target/Mips/MipsMachineFunction.h b/llvm/lib/Target/Mips/MipsMachineFunction.h
index 32436ef..a1b2e81 100644
--- a/llvm/lib/Target/Mips/MipsMachineFunction.h
+++ b/llvm/lib/Target/Mips/MipsMachineFunction.h
@@ -15,12 +15,10 @@
 #define LLVM_LIB_TARGET_MIPS_MIPSMACHINEFUNCTION_H
 
 #include "Mips16HardFloatInfo.h"
-#include "llvm/ADT/StringMap.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineMemOperand.h"
 #include "llvm/CodeGen/PseudoSourceValue.h"
-#include "llvm/IR/GlobalValue.h"
 #include "llvm/IR/ValueMap.h"
 #include "llvm/Target/TargetFrameLowering.h"
 #include "llvm/Target/TargetMachine.h"
@@ -30,24 +28,6 @@
 
 namespace llvm {
 
-/// \brief A class derived from PseudoSourceValue that represents a GOT entry
-/// resolved by lazy-binding.
-class MipsCallEntry : public PseudoSourceValue {
-public:
-  explicit MipsCallEntry(StringRef N);
-  explicit MipsCallEntry(const GlobalValue *V);
-  bool isConstant(const MachineFrameInfo *) const override;
-  bool isAliased(const MachineFrameInfo *) const override;
-  bool mayAlias(const MachineFrameInfo *) const override;
-
-private:
-  void printCustom(raw_ostream &O) const override;
-#ifndef NDEBUG
-  std::string Name;
-  const GlobalValue *Val;
-#endif
-};
-
 /// MipsFunctionInfo - This class is derived from MachineFunction private
 /// Mips target-specific information for each MachineFunction.
 class MipsFunctionInfo : public MachineFunctionInfo {
@@ -86,13 +66,13 @@ public:
   int getEhDataRegFI(unsigned Reg) const { return EhDataRegFI[Reg]; }
   bool isEhDataRegFI(int FI) const;
 
-  /// \brief Create a MachinePointerInfo that has a MipsCallEntr object
-  /// representing a GOT entry for an external function.
-  MachinePointerInfo callPtrInfo(StringRef Name);
+  /// Create a MachinePointerInfo that has an ExternalSymbolPseudoSourceValue
+  /// object representing a GOT entry for an external function.
+  MachinePointerInfo callPtrInfo(const char *ES);
 
-  /// \brief Create a MachinePointerInfo that has a MipsCallEntr object
+  /// Create a MachinePointerInfo that has a GlobalValuePseudoSourceValue object
   /// representing a GOT entry for a global function.
-  MachinePointerInfo callPtrInfo(const GlobalValue *Val);
+  MachinePointerInfo callPtrInfo(const GlobalValue *GV);
 
   void setSaveS2() { SaveS2 = true; }
   bool hasSaveS2() const { return SaveS2; }
@@ -142,11 +122,6 @@ private:
   /// FrameIndex for expanding BuildPairF64 nodes to spill and reload when the
   /// O32 FPXX ABI is enabled. -1 is used to denote invalid index.
   int MoveF64ViaSpillFI;
-
-  /// MipsCallEntry maps.
-  StringMap<std::unique_ptr<const MipsCallEntry>> ExternalCallEntries;
-  ValueMap<const GlobalValue *, std::unique_ptr<const MipsCallEntry>>
-      GlobalCallEntries;
 };
 
 } // end of namespace llvm