You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
3.8 KiB
101 lines
3.8 KiB
4 months ago
|
//=== SystemZMachineFunctionInfo.h - SystemZ machine function info -*- C++ -*-//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
|
||
|
|
#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZMACHINEFUNCTIONINFO_H
|
||
|
|
|
||
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
||
|
|
|
||
|
|
namespace llvm {
|
||
|
|
|
||
|
|
namespace SystemZ {
|
||
|
|
// A struct to hold the low and high GPR registers to be saved/restored as
|
||
|
|
// well as the offset into the register save area of the low register.
|
||
|
|
struct GPRRegs {
|
||
|
|
unsigned LowGPR;
|
||
|
|
unsigned HighGPR;
|
||
|
|
unsigned GPROffset;
|
||
|
|
GPRRegs() : LowGPR(0), HighGPR(0), GPROffset(0) {}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
class SystemZMachineFunctionInfo : public MachineFunctionInfo {
|
||
|
|
virtual void anchor();
|
||
|
|
|
||
|
|
SystemZ::GPRRegs SpillGPRRegs;
|
||
|
|
SystemZ::GPRRegs RestoreGPRRegs;
|
||
|
|
Register VarArgsFirstGPR;
|
||
|
|
Register VarArgsFirstFPR;
|
||
|
|
unsigned VarArgsFrameIndex;
|
||
|
|
unsigned RegSaveFrameIndex;
|
||
|
|
int FramePointerSaveIndex;
|
||
|
|
bool ManipulatesSP;
|
||
|
|
unsigned NumLocalDynamics;
|
||
|
|
|
||
|
|
public:
|
||
|
|
explicit SystemZMachineFunctionInfo(MachineFunction &MF)
|
||
|
|
: VarArgsFirstGPR(0), VarArgsFirstFPR(0), VarArgsFrameIndex(0),
|
||
|
|
RegSaveFrameIndex(0), FramePointerSaveIndex(0), ManipulatesSP(false),
|
||
|
|
NumLocalDynamics(0) {}
|
||
|
|
|
||
|
|
// Get and set the first and last call-saved GPR that should be saved by
|
||
|
|
// this function and the SP offset for the STMG. These are 0 if no GPRs
|
||
|
|
// need to be saved or restored.
|
||
|
|
SystemZ::GPRRegs getSpillGPRRegs() const { return SpillGPRRegs; }
|
||
|
|
void setSpillGPRRegs(Register Low, Register High, unsigned Offs) {
|
||
|
|
SpillGPRRegs.LowGPR = Low;
|
||
|
|
SpillGPRRegs.HighGPR = High;
|
||
|
|
SpillGPRRegs.GPROffset = Offs;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get and set the first and last call-saved GPR that should be restored by
|
||
|
|
// this function and the SP offset for the LMG. These are 0 if no GPRs
|
||
|
|
// need to be saved or restored.
|
||
|
|
SystemZ::GPRRegs getRestoreGPRRegs() const { return RestoreGPRRegs; }
|
||
|
|
void setRestoreGPRRegs(Register Low, Register High, unsigned Offs) {
|
||
|
|
RestoreGPRRegs.LowGPR = Low;
|
||
|
|
RestoreGPRRegs.HighGPR = High;
|
||
|
|
RestoreGPRRegs.GPROffset = Offs;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get and set the number of fixed (as opposed to variable) arguments
|
||
|
|
// that are passed in GPRs to this function.
|
||
|
|
Register getVarArgsFirstGPR() const { return VarArgsFirstGPR; }
|
||
|
|
void setVarArgsFirstGPR(Register GPR) { VarArgsFirstGPR = GPR; }
|
||
|
|
|
||
|
|
// Likewise FPRs.
|
||
|
|
Register getVarArgsFirstFPR() const { return VarArgsFirstFPR; }
|
||
|
|
void setVarArgsFirstFPR(Register 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; }
|
||
|
|
|
||
|
|
// Get and set the frame index of where the old frame pointer is stored.
|
||
|
|
int getFramePointerSaveIndex() const { return FramePointerSaveIndex; }
|
||
|
|
void setFramePointerSaveIndex(int Idx) { FramePointerSaveIndex = Idx; }
|
||
|
|
|
||
|
|
// 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; }
|
||
|
|
|
||
|
|
// Count number of local-dynamic TLS symbols used.
|
||
|
|
unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
|
||
|
|
void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
|
||
|
|
};
|
||
|
|
|
||
|
|
} // end namespace llvm
|
||
|
|
|
||
|
|
#endif
|