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//===-- PIC16.h - Top-level interface for PIC16 representation --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the entry points for global functions defined in
// the LLVM PIC16 back-end.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_PIC16_H
#define LLVM_TARGET_PIC16_H
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
#include <sstream>
#include <cstring>
#include <string>
#include <vector>
namespace llvm {
class PIC16TargetMachine;
class FunctionPass;
class MachineCodeEmitter;
class formatted_raw_ostream;
namespace PIC16CC {
enum CondCodes {
EQ,
NE,
LT,
LE,
GT,
GE,
ULT,
UGT,
ULE,
UGE
};
}
enum PIC16SectionType {
CODE,
UDATA,
IDATA,
ROMDATA,
UDATA_OVR,
UDATA_SHR
};
class ESNames {
std::vector<char*> stk;
ESNames() {}
public:
~ESNames() {
while (!stk.empty())
{
char* p = stk.back();
delete [] p;
stk.pop_back();
}
}
// External symbol names require memory to live till the program end.
// So we have to allocate it and keep. Push all such allocations into a
// vector so that they get freed up on termination.
inline static const char *createESName (const std::string &name) {
static ESNames esn;
char *tmpName = new char[name.size() + 1];
memcpy(tmpName, name.c_str(), name.size() + 1);
esn.stk.push_back(tmpName);
return tmpName;
}
};
inline static const char *PIC16CondCodeToString(PIC16CC::CondCodes CC) {
switch (CC) {
default: llvm_unreachable("Unknown condition code");
case PIC16CC::NE: return "ne";
case PIC16CC::EQ: return "eq";
case PIC16CC::LT: return "lt";
case PIC16CC::ULT: return "lt";
case PIC16CC::LE: return "le";
case PIC16CC::ULE: return "le";
case PIC16CC::GT: return "gt";
case PIC16CC::UGT: return "gt";
case PIC16CC::GE: return "ge";
case PIC16CC::UGE: return "ge";
}
}
inline static bool isSignedComparison(PIC16CC::CondCodes CC) {
switch (CC) {
default: llvm_unreachable("Unknown condition code");
case PIC16CC::NE:
case PIC16CC::EQ:
case PIC16CC::LT:
case PIC16CC::LE:
case PIC16CC::GE:
case PIC16CC::GT:
return true;
case PIC16CC::ULT:
case PIC16CC::UGT:
case PIC16CC::ULE:
case PIC16CC::UGE:
return false; // condition codes for unsigned comparison.
}
}
FunctionPass *createPIC16ISelDag(PIC16TargetMachine &TM);
// Banksel optimizer pass.
FunctionPass *createPIC16MemSelOptimizerPass();
extern Target ThePIC16Target;
extern Target TheCooperTarget;
} // end namespace llvm;
// Defines symbolic names for PIC16 registers. This defines a mapping from
// register name to register number.
#include "PIC16GenRegisterNames.inc"
// Defines symbolic names for the PIC16 instructions.
#include "PIC16GenInstrNames.inc"
#endif
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