// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
-//
-// This file declares SystemZ-specific per-machine-function information.
-//
-//===----------------------------------------------------------------------===//
-#ifndef SYSTEMZMACHINEFUNCTIONINFO_H
-#define SYSTEMZMACHINEFUNCTIONINFO_H
+#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
+#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
#include "llvm/CodeGen/MachineFunction.h"
namespace llvm {
-/// SystemZMachineFunctionInfo - This class is derived from MachineFunction and
-/// contains private SystemZ target-specific information for each MachineFunction.
class SystemZMachineFunctionInfo : public MachineFunctionInfo {
- /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
- /// stack frame in bytes.
- unsigned CalleeSavedFrameSize;
+ virtual void anchor();
+ unsigned LowSavedGPR;
+ unsigned HighSavedGPR;
+ unsigned VarArgsFirstGPR;
+ unsigned VarArgsFirstFPR;
+ unsigned VarArgsFrameIndex;
+ unsigned RegSaveFrameIndex;
+ bool ManipulatesSP;
+ unsigned NumLocalDynamics;
public:
- SystemZMachineFunctionInfo() : CalleeSavedFrameSize(0) {}
+ explicit SystemZMachineFunctionInfo(MachineFunction &MF)
+ : LowSavedGPR(0), HighSavedGPR(0), VarArgsFirstGPR(0), VarArgsFirstFPR(0),
+ VarArgsFrameIndex(0), RegSaveFrameIndex(0), ManipulatesSP(false),
+ NumLocalDynamics(0) {}
+
+ // Get and set the first call-saved GPR that should be saved and restored
+ // by this function. This is 0 if no GPRs need to be saved or restored.
+ unsigned getLowSavedGPR() const { return LowSavedGPR; }
+ void setLowSavedGPR(unsigned Reg) { LowSavedGPR = Reg; }
+
+ // Get and set the last call-saved GPR that should be saved and restored
+ // by this function.
+ unsigned getHighSavedGPR() const { return HighSavedGPR; }
+ void setHighSavedGPR(unsigned Reg) { HighSavedGPR = Reg; }
+
+ // Get and set the number of fixed (as opposed to variable) arguments
+ // that are passed in GPRs to this function.
+ unsigned getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
+ void setVarArgsFirstGPR(unsigned GPR) { VarArgsFirstGPR = GPR; }
+
+ // Likewise FPRs.
+ unsigned getVarArgsFirstFPR() const { return VarArgsFirstFPR; }
+ void setVarArgsFirstFPR(unsigned FPR) { VarArgsFirstFPR = FPR; }
+
+ // Get and set the frame index of the first stack vararg.
+ unsigned getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+ void setVarArgsFrameIndex(unsigned FI) { VarArgsFrameIndex = FI; }
+
+ // Get and set the frame index of the register save area
+ // (i.e. the incoming stack pointer).
+ unsigned getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
+ void setRegSaveFrameIndex(unsigned FI) { RegSaveFrameIndex = FI; }
- SystemZMachineFunctionInfo(MachineFunction &MF) : CalleeSavedFrameSize(0) {}
+ // Get and set whether the function directly manipulates the stack pointer,
+ // e.g. through STACKSAVE or STACKRESTORE.
+ bool getManipulatesSP() const { return ManipulatesSP; }
+ void setManipulatesSP(bool MSP) { ManipulatesSP = MSP; }
- unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
- void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
+ // Count number of local-dynamic TLS symbols used.
+ unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
+ void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
};
-} // End llvm namespace
+} // end namespace llvm
#endif