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.
87 lines
3.1 KiB
87 lines
3.1 KiB
4 months ago
|
//===-- AVRMachineFuctionInfo.h - AVR 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
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This file declares AVR-specific per-machine-function information.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef LLVM_AVR_MACHINE_FUNCTION_INFO_H
|
||
|
|
#define LLVM_AVR_MACHINE_FUNCTION_INFO_H
|
||
|
|
|
||
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
||
|
|
|
||
|
|
namespace llvm {
|
||
|
|
|
||
|
|
/// Contains AVR-specific information for each MachineFunction.
|
||
|
|
class AVRMachineFunctionInfo : public MachineFunctionInfo {
|
||
|
|
/// Indicates if a register has been spilled by the register
|
||
|
|
/// allocator.
|
||
|
|
bool HasSpills;
|
||
|
|
|
||
|
|
/// Indicates if there are any fixed size allocas present.
|
||
|
|
/// Note that if there are only variable sized allocas this is set to false.
|
||
|
|
bool HasAllocas;
|
||
|
|
|
||
|
|
/// Indicates if arguments passed using the stack are being
|
||
|
|
/// used inside the function.
|
||
|
|
bool HasStackArgs;
|
||
|
|
|
||
|
|
/// Whether or not the function is an interrupt handler.
|
||
|
|
bool IsInterruptHandler;
|
||
|
|
|
||
|
|
/// Whether or not the function is an non-blocking interrupt handler.
|
||
|
|
bool IsSignalHandler;
|
||
|
|
|
||
|
|
/// Size of the callee-saved register portion of the
|
||
|
|
/// stack frame in bytes.
|
||
|
|
unsigned CalleeSavedFrameSize;
|
||
|
|
|
||
|
|
/// FrameIndex for start of varargs area.
|
||
|
|
int VarArgsFrameIndex;
|
||
|
|
|
||
|
|
public:
|
||
|
|
AVRMachineFunctionInfo()
|
||
|
|
: HasSpills(false), HasAllocas(false), HasStackArgs(false),
|
||
|
|
IsInterruptHandler(false), IsSignalHandler(false),
|
||
|
|
CalleeSavedFrameSize(0), VarArgsFrameIndex(0) {}
|
||
|
|
|
||
|
|
explicit AVRMachineFunctionInfo(MachineFunction &MF)
|
||
|
|
: HasSpills(false), HasAllocas(false), HasStackArgs(false),
|
||
|
|
CalleeSavedFrameSize(0), VarArgsFrameIndex(0) {
|
||
|
|
unsigned CallConv = MF.getFunction().getCallingConv();
|
||
|
|
|
||
|
|
this->IsInterruptHandler = CallConv == CallingConv::AVR_INTR || MF.getFunction().hasFnAttribute("interrupt");
|
||
|
|
this->IsSignalHandler = CallConv == CallingConv::AVR_SIGNAL || MF.getFunction().hasFnAttribute("signal");
|
||
|
|
}
|
||
|
|
|
||
|
|
bool getHasSpills() const { return HasSpills; }
|
||
|
|
void setHasSpills(bool B) { HasSpills = B; }
|
||
|
|
|
||
|
|
bool getHasAllocas() const { return HasAllocas; }
|
||
|
|
void setHasAllocas(bool B) { HasAllocas = B; }
|
||
|
|
|
||
|
|
bool getHasStackArgs() const { return HasStackArgs; }
|
||
|
|
void setHasStackArgs(bool B) { HasStackArgs = B; }
|
||
|
|
|
||
|
|
/// Checks if the function is some form of interrupt service routine.
|
||
|
|
bool isInterruptOrSignalHandler() const { return isInterruptHandler() || isSignalHandler(); }
|
||
|
|
|
||
|
|
bool isInterruptHandler() const { return IsInterruptHandler; }
|
||
|
|
bool isSignalHandler() const { return IsSignalHandler; }
|
||
|
|
|
||
|
|
unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
|
||
|
|
void setCalleeSavedFrameSize(unsigned Bytes) { CalleeSavedFrameSize = Bytes; }
|
||
|
|
|
||
|
|
int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
|
||
|
|
void setVarArgsFrameIndex(int Idx) { VarArgsFrameIndex = Idx; }
|
||
|
|
};
|
||
|
|
|
||
|
|
} // end llvm namespace
|
||
|
|
|
||
|
|
#endif // LLVM_AVR_MACHINE_FUNCTION_INFO_H
|