Use default member initializers to deduplicate code in X86MachineFunctionInfo, NFC

llvm-svn: 241609

lib/Target/X86/X86MachineFunctionInfo.h

@@ -30,59 +30,59 @@ class X86MachineFunctionInfo : public MachineFunctionInfo {
   /// pointer for reasons other than it containing dynamic allocation or
   /// that FP eliminatation is turned off. For example, Cygwin main function
   /// contains stack pointer re-alignment code which requires FP.
-  bool ForceFramePointer;
+  bool ForceFramePointer = false;
 
   /// RestoreBasePointerOffset - Non-zero if the function has base pointer
   /// and makes call to llvm.eh.sjlj.setjmp. When non-zero, the value is a
   /// displacement from the frame pointer to a slot where the base pointer
   /// is stashed.
-  signed char RestoreBasePointerOffset;
+  signed char RestoreBasePointerOffset = 0;
 
   /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
   /// stack frame in bytes.
-  unsigned CalleeSavedFrameSize;
+  unsigned CalleeSavedFrameSize = 0;
 
   /// BytesToPopOnReturn - Number of bytes function pops on return (in addition
   /// to the space used by the return address).
   /// Used on windows platform for stdcall & fastcall name decoration
-  unsigned BytesToPopOnReturn;
+  unsigned BytesToPopOnReturn = 0;
 
   /// ReturnAddrIndex - FrameIndex for return slot.
-  int ReturnAddrIndex;
+  int ReturnAddrIndex = 0;
 
   /// \brief FrameIndex for return slot.
-  int FrameAddrIndex;
+  int FrameAddrIndex = 0;
 
   /// TailCallReturnAddrDelta - The number of bytes by which return address
   /// stack slot is moved as the result of tail call optimization.
-  int TailCallReturnAddrDelta;
+  int TailCallReturnAddrDelta = 0;
 
   /// SRetReturnReg - Some subtargets require that sret lowering includes
   /// returning the value of the returned struct in a register. This field
   /// holds the virtual register into which the sret argument is passed.
-  unsigned SRetReturnReg;
+  unsigned SRetReturnReg = 0;
 
   /// GlobalBaseReg - keeps track of the virtual register initialized for
   /// use as the global base register. This is used for PIC in some PIC
   /// relocation models.
-  unsigned GlobalBaseReg;
+  unsigned GlobalBaseReg = 0;
 
   /// VarArgsFrameIndex - FrameIndex for start of varargs area.
-  int VarArgsFrameIndex;
+  int VarArgsFrameIndex = 0;
   /// RegSaveFrameIndex - X86-64 vararg func register save area.
-  int RegSaveFrameIndex;
+  int RegSaveFrameIndex = 0;
   /// VarArgsGPOffset - X86-64 vararg func int reg offset.
-  unsigned VarArgsGPOffset;
+  unsigned VarArgsGPOffset = 0;
   /// VarArgsFPOffset - X86-64 vararg func fp reg offset.
-  unsigned VarArgsFPOffset;
+  unsigned VarArgsFPOffset = 0;
   /// ArgumentStackSize - The number of bytes on stack consumed by the arguments
   /// being passed on the stack.
-  unsigned ArgumentStackSize;
+  unsigned ArgumentStackSize = 0;
   /// NumLocalDynamics - Number of local-dynamic TLS accesses.
-  unsigned NumLocalDynamics;
+  unsigned NumLocalDynamics = 0;
   /// HasPushSequences - Keeps track of whether this function uses sequences
   /// of pushes to pass function parameters.
-  bool HasPushSequences;
+  bool HasPushSequences = false;
 
 private:
   /// ForwardedMustTailRegParms - A list of virtual and physical registers
@@ -90,40 +90,9 @@ private:
   SmallVector<ForwardedRegister, 1> ForwardedMustTailRegParms;
 
 public:
-  X86MachineFunctionInfo() : ForceFramePointer(false),
-                             RestoreBasePointerOffset(0),
-                             CalleeSavedFrameSize(0),
-                             BytesToPopOnReturn(0),
-                             ReturnAddrIndex(0),
-                             FrameAddrIndex(0),
-                             TailCallReturnAddrDelta(0),
-                             SRetReturnReg(0),
-                             GlobalBaseReg(0),
-                             VarArgsFrameIndex(0),
-                             RegSaveFrameIndex(0),
-                             VarArgsGPOffset(0),
-                             VarArgsFPOffset(0),
-                             ArgumentStackSize(0),
-                             NumLocalDynamics(0),
-                             HasPushSequences(false) {}
+  X86MachineFunctionInfo() = default;
 
-  explicit X86MachineFunctionInfo(MachineFunction &MF)
-    : ForceFramePointer(false),
-      RestoreBasePointerOffset(0),
-      CalleeSavedFrameSize(0),
-      BytesToPopOnReturn(0),
-      ReturnAddrIndex(0),
-      FrameAddrIndex(0),
-      TailCallReturnAddrDelta(0),
-      SRetReturnReg(0),
-      GlobalBaseReg(0),
-      VarArgsFrameIndex(0),
-      RegSaveFrameIndex(0),
-      VarArgsGPOffset(0),
-      VarArgsFPOffset(0),
-      ArgumentStackSize(0),
-      NumLocalDynamics(0),
-      HasPushSequences(false) {}
+  explicit X86MachineFunctionInfo(MachineFunction &MF) {};
 
   bool getForceFramePointer() const { return ForceFramePointer;}
   void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }