fix two comment thinkos

[oota-llvm.git] / lib / CodeGen / VirtRegMap.h

diff --git a/lib/CodeGen/VirtRegMap.h b/lib/CodeGen/VirtRegMap.h
index bdc2d1f7127610ff7f3df195083dd3988345edf0..cbc96bbd4f243e35aa4ecea2f2810106c7002916 100644 (file)
--- a/lib/CodeGen/VirtRegMap.h
+++ b/lib/CodeGen/VirtRegMap.h
@@ -80,7 +80,7 @@ namespace llvm {
 
     /// Virt2SplitKillMap - This is splitted virtual register to its last use
     /// (kill) index mapping.
-    IndexedMap<LiveIndex> Virt2SplitKillMap;
+    IndexedMap<SlotIndex, VirtReg2IndexFunctor> Virt2SplitKillMap;
 
     /// ReMatMap - This is virtual register to re-materialized instruction
     /// mapping. Each virtual register whose definition is going to be
@@ -134,15 +134,18 @@ namespace llvm {
     /// UnusedRegs - A list of physical registers that have not been used.
     BitVector UnusedRegs;
 
+    /// createSpillSlot - Allocate a spill slot for RC from MFI.
+    unsigned createSpillSlot(const TargetRegisterClass *RC);
+
     VirtRegMap(const VirtRegMap&);     // DO NOT IMPLEMENT
     void operator=(const VirtRegMap&); // DO NOT IMPLEMENT
 
   public:
     static char ID;
-    VirtRegMap() : MachineFunctionPass(&ID), Virt2PhysMap(NO_PHYS_REG),
+    VirtRegMap() : MachineFunctionPass(ID), Virt2PhysMap(NO_PHYS_REG),
                    Virt2StackSlotMap(NO_STACK_SLOT), 
                    Virt2ReMatIdMap(NO_STACK_SLOT), Virt2SplitMap(0),
-                   Virt2SplitKillMap(LiveIndex()), ReMatMap(NULL),
+                   Virt2SplitKillMap(SlotIndex()), ReMatMap(NULL),
                    ReMatId(MAX_STACK_SLOT+1),
                    LowSpillSlot(NO_STACK_SLOT), HighSpillSlot(NO_STACK_SLOT) { }
     virtual bool runOnMachineFunction(MachineFunction &MF);
@@ -152,6 +155,14 @@ namespace llvm {
       MachineFunctionPass::getAnalysisUsage(AU);
     }
 
+    MachineFunction &getMachineFunction() const {
+      assert(MF && "getMachineFunction called before runOnMachineFunction");
+      return *MF;
+    }
+
+    MachineRegisterInfo &getRegInfo() const { return *MRI; }
+    const TargetRegisterInfo &getTargetRegInfo() const { return *TRI; }
+
     void grow();
 
     /// @brief returns true if the specified virtual register is
@@ -266,17 +277,17 @@ namespace llvm {
     }
 
     /// @brief record the last use (kill) of a split virtual register.
-    void addKillPoint(unsigned virtReg, LiveIndex index) {
+    void addKillPoint(unsigned virtReg, SlotIndex index) {
       Virt2SplitKillMap[virtReg] = index;
     }
 
-    LiveIndex getKillPoint(unsigned virtReg) const {
+    SlotIndex getKillPoint(unsigned virtReg) const {
       return Virt2SplitKillMap[virtReg];
     }
 
     /// @brief remove the last use (kill) of a split virtual register.
     void removeKillPoint(unsigned virtReg) {
-      Virt2SplitKillMap[virtReg] = LiveIndex();
+      Virt2SplitKillMap[virtReg] = SlotIndex();
     }
 
     /// @brief returns true if the specified MachineInstr is a spill point.
@@ -421,12 +432,12 @@ namespace llvm {
 
     /// @brief Mark the specified register as being implicitly defined.
     void setIsImplicitlyDefined(unsigned VirtReg) {
-      ImplicitDefed.set(VirtReg-TargetRegisterInfo::FirstVirtualRegister);
+      ImplicitDefed.set(TargetRegisterInfo::virtReg2Index(VirtReg));
     }
 
     /// @brief Returns true if the virtual register is implicitly defined.
     bool isImplicitlyDefined(unsigned VirtReg) const {
-      return ImplicitDefed[VirtReg-TargetRegisterInfo::FirstVirtualRegister];
+      return ImplicitDefed[TargetRegisterInfo::virtReg2Index(VirtReg)];
     }
 
     /// @brief Updates information about the specified virtual register's value