Fixed logic error. Should check Builder for validity before calling SetSession

[oota-llvm.git] / lib / Target / ARM / Thumb1RegisterInfo.h

diff --git a/lib/Target/ARM/Thumb1RegisterInfo.h b/lib/Target/ARM/Thumb1RegisterInfo.h
index 6eae904c16e2c115a510c1aa7e891c9964c5b9a7..4eca3673391f40f3c5523161718a0afc95a1c2a0 100644 (file)
--- a/lib/Target/ARM/Thumb1RegisterInfo.h
+++ b/lib/Target/ARM/Thumb1RegisterInfo.h
@@ -1,4 +1,4 @@
-//===- Thumb1RegisterInfo.h - Thumb-1 Register Information Impl ----*- C++ -*-===//
+//===- Thumb1RegisterInfo.h - Thumb-1 Register Information Impl -*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,7 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file contains the Thumb-1 implementation of the TargetRegisterInfo class.
+// This file contains the Thumb-1 implementation of the TargetRegisterInfo
+// class.
 //
 //===----------------------------------------------------------------------===//
 
@@ -40,8 +41,6 @@ public:
   const TargetRegisterClass *
     getPhysicalRegisterRegClass(unsigned Reg, EVT VT = MVT::Other) const;
 
-  bool requiresRegisterScavenging(const MachineFunction &MF) const;
-
   bool hasReservedCallFrame(MachineFunction &MF) const;
 
   void eliminateCallFramePseudoInstr(MachineFunction &MF,
@@ -54,8 +53,14 @@ public:
                         unsigned FrameReg, int Offset,
                         unsigned MOVOpc, unsigned ADDriOpc, unsigned SUBriOpc) const;
 
-  void eliminateFrameIndex(MachineBasicBlock::iterator II,
-                           int SPAdj, RegScavenger *RS = NULL) const;
+  bool saveScavengerRegister(MachineBasicBlock &MBB,
+                             MachineBasicBlock::iterator I,
+                             MachineBasicBlock::iterator &UseMI,
+                             const TargetRegisterClass *RC,
+                             unsigned Reg) const;
+  unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
+                               int SPAdj, FrameIndexValue *Value = NULL,
+                               RegScavenger *RS = NULL) const;
 
   void emitPrologue(MachineFunction &MF) const;
   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;