[X86] Make the instructions that use AdSize16/32/64 co-exist together without using...

[oota-llvm.git] / lib / Target / X86 / X86MachineFunctionInfo.h

diff --git a/lib/Target/X86/X86MachineFunctionInfo.h b/lib/Target/X86/X86MachineFunctionInfo.h
index 2bc308d86c50a8b1f48f5ba3d57ba1d251361144..b23a744da686cb893c51b72eafbcd3dea1e923f5 100644 (file)
--- a/lib/Target/X86/X86MachineFunctionInfo.h
+++ b/lib/Target/X86/X86MachineFunctionInfo.h
@@ -11,10 +11,13 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef X86MACHINEFUNCTIONINFO_H
-#define X86MACHINEFUNCTIONINFO_H
+#ifndef LLVM_LIB_TARGET_X86_X86MACHINEFUNCTIONINFO_H
+#define LLVM_LIB_TARGET_X86_X86MACHINEFUNCTIONINFO_H
 
+#include "llvm/CodeGen/CallingConvLower.h"
 #include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineValueType.h"
+#include <vector>
 
 namespace llvm {
 
@@ -24,11 +27,17 @@ class X86MachineFunctionInfo : public MachineFunctionInfo {
   virtual void anchor();
 
   /// ForceFramePointer - True if the function is required to use of frame
-  /// pointer for reasons other than it containing dynamic allocation or 
+  /// 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;
 
+  /// 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;
+
   /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
   /// stack frame in bytes.
   unsigned CalleeSavedFrameSize;
@@ -69,8 +78,14 @@ class X86MachineFunctionInfo : public MachineFunctionInfo {
   /// NumLocalDynamics - Number of local-dynamic TLS accesses.
   unsigned NumLocalDynamics;
 
+private:
+  /// ForwardedMustTailRegParms - A list of virtual and physical registers
+  /// that must be forwarded to every musttail call.
+  SmallVector<ForwardedRegister, 1> ForwardedMustTailRegParms;
+
 public:
   X86MachineFunctionInfo() : ForceFramePointer(false),
+                             RestoreBasePointerOffset(0),
                              CalleeSavedFrameSize(0),
                              BytesToPopOnReturn(0),
                              ReturnAddrIndex(0),
@@ -83,9 +98,10 @@ public:
                              VarArgsFPOffset(0),
                              ArgumentStackSize(0),
                              NumLocalDynamics(0) {}
-  
+
   explicit X86MachineFunctionInfo(MachineFunction &MF)
     : ForceFramePointer(false),
+      RestoreBasePointerOffset(0),
       CalleeSavedFrameSize(0),
       BytesToPopOnReturn(0),
       ReturnAddrIndex(0),
@@ -98,10 +114,14 @@ public:
       VarArgsFPOffset(0),
       ArgumentStackSize(0),
       NumLocalDynamics(0) {}
-  
-  bool getForceFramePointer() const { return ForceFramePointer;} 
+
+  bool getForceFramePointer() const { return ForceFramePointer;}
   void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
 
+  bool getRestoreBasePointer() const { return RestoreBasePointerOffset!=0; }
+  void setRestoreBasePointer(const MachineFunction *MF);
+  int getRestoreBasePointerOffset() const {return RestoreBasePointerOffset; }
+
   unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
   void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
 
@@ -137,6 +157,10 @@ public:
 
   unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
   void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
+
+  SmallVectorImpl<ForwardedRegister> &getForwardedMustTailRegParms() {
+    return ForwardedMustTailRegParms;
+  }
 };
 
 } // End llvm namespace