Replace PROLOG_LABEL with a new CFI_INSTRUCTION.

[oota-llvm.git] / lib / Target / XCore / XCoreMachineFunctionInfo.h

diff --git a/lib/Target/XCore/XCoreMachineFunctionInfo.h b/lib/Target/XCore/XCoreMachineFunctionInfo.h
index a575a0f695414c482056739d58cc6f386b0784c1..212a5cfecc3019a189d5677b5c3bd0a3e11a26a2 100644 (file)
--- a/lib/Target/XCore/XCoreMachineFunctionInfo.h
+++ b/lib/Target/XCore/XCoreMachineFunctionInfo.h
@@ -1,4 +1,4 @@
-//====- XCoreMachineFuctionInfo.h - XCore machine function info -*- C++ -*-===//
+//===-- XCoreMachineFuctionInfo.h - XCore machine function info -*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -14,8 +14,8 @@
 #ifndef XCOREMACHINEFUNCTIONINFO_H
 #define XCOREMACHINEFUNCTIONINFO_H
 
-#include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
 #include <vector>
 
 namespace llvm {
@@ -26,41 +26,78 @@ class Function;
 /// XCoreFunctionInfo - This class is derived from MachineFunction private
 /// XCore target-specific information for each MachineFunction.
 class XCoreFunctionInfo : public MachineFunctionInfo {
-private:
-  bool UsesLR;
+  virtual void anchor();
+  bool LRSpillSlotSet;
   int LRSpillSlot;
+  bool FPSpillSlotSet;
   int FPSpillSlot;
+  bool EHSpillSlotSet;
+  int EHSpillSlot[2];
+  unsigned ReturnStackOffset;
+  bool ReturnStackOffsetSet;
   int VarArgsFrameIndex;
-  std::vector<std::pair<MCSymbol*, CalleeSavedInfo> > SpillLabels;
+  mutable int CachedEStackSize;
+  std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>>
+  SpillLabels;
 
 public:
   XCoreFunctionInfo() :
-    UsesLR(false),
-    LRSpillSlot(0),
-    FPSpillSlot(0),
-    VarArgsFrameIndex(0) {}
+    LRSpillSlotSet(false),
+    FPSpillSlotSet(false),
+    EHSpillSlotSet(false),
+    ReturnStackOffsetSet(false),
+    VarArgsFrameIndex(0),
+    CachedEStackSize(-1) {}
   
   explicit XCoreFunctionInfo(MachineFunction &MF) :
-    UsesLR(false),
-    LRSpillSlot(0),
-    FPSpillSlot(0),
-    VarArgsFrameIndex(0) {}
+    LRSpillSlotSet(false),
+    FPSpillSlotSet(false),
+    EHSpillSlotSet(false),
+    ReturnStackOffsetSet(false),
+    VarArgsFrameIndex(0),
+    CachedEStackSize(-1) {}
   
   ~XCoreFunctionInfo() {}
   
   void setVarArgsFrameIndex(int off) { VarArgsFrameIndex = off; }
   int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
-  
-  void setUsesLR(bool val) { UsesLR = val; }
-  bool getUsesLR() const { return UsesLR; }
-  
-  void setLRSpillSlot(int off) { LRSpillSlot = off; }
-  int getLRSpillSlot() const { return LRSpillSlot; }
-  
-  void setFPSpillSlot(int off) { FPSpillSlot = off; }
-  int getFPSpillSlot() const { return FPSpillSlot; }
-  
-  std::vector<std::pair<MCSymbol*, CalleeSavedInfo> > &getSpillLabels() {
+
+  int createLRSpillSlot(MachineFunction &MF);
+  bool hasLRSpillSlot() { return LRSpillSlotSet; }
+  int getLRSpillSlot() const {
+    assert(LRSpillSlotSet && "LR Spill slot not set");
+    return LRSpillSlot;
+  }
+
+  int createFPSpillSlot(MachineFunction &MF);
+  bool hasFPSpillSlot() { return FPSpillSlotSet; }
+  int getFPSpillSlot() const {
+    assert(FPSpillSlotSet && "FP Spill slot not set");
+    return FPSpillSlot;
+  }
+
+  const int* createEHSpillSlot(MachineFunction &MF);
+  bool hasEHSpillSlot() { return EHSpillSlotSet; }
+  const int* getEHSpillSlot() const {
+    assert(EHSpillSlotSet && "EH Spill slot not set");
+    return EHSpillSlot;
+  }
+
+  void setReturnStackOffset(unsigned value) {
+    assert(!ReturnStackOffsetSet && "Return stack offset set twice");
+    ReturnStackOffset = value;
+    ReturnStackOffsetSet = true;
+  }
+
+  unsigned getReturnStackOffset() const {
+    assert(ReturnStackOffsetSet && "Return stack offset not set");
+    return ReturnStackOffset;
+  }
+
+  bool isLargeFrame(const MachineFunction &MF) const;
+
+  std::vector<std::pair<MachineBasicBlock::iterator, CalleeSavedInfo>> &
+  getSpillLabels() {
     return SpillLabels;
   }
 };