2008-05-13 09:02:57 +00:00
|
|
|
//===-- PIC16.h - Top-level interface for PIC16 representation --*- C++ -*-===//
|
|
|
|
//
|
|
|
|
// The LLVM Compiler Infrastructure
|
|
|
|
//
|
2008-05-14 06:50:01 +00:00
|
|
|
// This file is distributed under the University of Illinois Open Source
|
|
|
|
// License. See LICENSE.TXT for details.
|
2008-05-13 09:02:57 +00:00
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
//
|
|
|
|
// This file contains the entry points for global functions defined in
|
|
|
|
// the LLVM PIC16 back-end.
|
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2008-11-19 11:00:54 +00:00
|
|
|
#ifndef LLVM_TARGET_PIC16_H
|
|
|
|
#define LLVM_TARGET_PIC16_H
|
2008-05-13 09:02:57 +00:00
|
|
|
|
2009-04-29 23:29:43 +00:00
|
|
|
#include "llvm/Target/TargetMachine.h"
|
2009-01-13 19:18:47 +00:00
|
|
|
#include <iosfwd>
|
|
|
|
#include <cassert>
|
2009-05-06 08:02:01 +00:00
|
|
|
#include <string>
|
2009-01-13 19:18:47 +00:00
|
|
|
|
2008-05-13 09:02:57 +00:00
|
|
|
namespace llvm {
|
|
|
|
class PIC16TargetMachine;
|
|
|
|
class FunctionPass;
|
|
|
|
class MachineCodeEmitter;
|
2008-08-21 00:14:44 +00:00
|
|
|
class raw_ostream;
|
2008-05-13 09:02:57 +00:00
|
|
|
|
2009-01-13 19:18:47 +00:00
|
|
|
namespace PIC16CC {
|
|
|
|
enum CondCodes {
|
|
|
|
EQ,
|
|
|
|
NE,
|
|
|
|
LT,
|
|
|
|
LE,
|
|
|
|
GT,
|
2009-01-21 05:44:05 +00:00
|
|
|
GE,
|
|
|
|
ULT,
|
|
|
|
UGT,
|
|
|
|
ULE,
|
|
|
|
UGE
|
2009-01-13 19:18:47 +00:00
|
|
|
};
|
|
|
|
}
|
2009-05-06 08:02:01 +00:00
|
|
|
// A Central object to manage all ABI naming conventions.
|
|
|
|
class PIC16ABINames {
|
|
|
|
public:
|
|
|
|
// Map the name of the symbol to its section name.
|
|
|
|
// Current ABI:
|
|
|
|
// ------------------------------------------------------
|
|
|
|
// Global variables do not have any '.' in their names.
|
|
|
|
// they are prefixed with @
|
|
|
|
// These are maily function names and global variable names.
|
|
|
|
// -------------------------------------------------------
|
|
|
|
// Functions and auto variables.
|
|
|
|
// Names are mangled as <prefix><funcname>.<id>.<varname>
|
|
|
|
// Where prefix is a special char '@' and id is any one of
|
|
|
|
// the following
|
|
|
|
// .auto. - an automatic var of a function.
|
|
|
|
// .temp. - temproray data of a function.
|
|
|
|
// .ret. - return value label for a function.
|
|
|
|
// .frame. - Frame label for a function where retval, args
|
|
|
|
// and temps are stored.
|
|
|
|
// .args. - Label used to pass arguments to a direct call.
|
|
|
|
// Example - Function name: @foo
|
|
|
|
// Its frame: @foo.frame.
|
|
|
|
// Its retval: @foo.ret.
|
|
|
|
// Its local vars: @foo.auto.a
|
|
|
|
// Its temp data: @foo.temp.
|
|
|
|
// Its arg passing: @foo.args.
|
|
|
|
//----------------------------------------------
|
|
|
|
// Libcall - compiler generated libcall names must have a .lib.
|
|
|
|
// This id will be used to emit extern decls for libcalls.
|
|
|
|
// Example - libcall name: @sra_i8.lib.
|
|
|
|
// To pass args: @sra_i8.args.
|
|
|
|
// To return val: @sra_i8.ret.
|
|
|
|
//----------------------------------------------
|
|
|
|
|
|
|
|
enum IDs {
|
|
|
|
PREFIX_SYMBOL,
|
|
|
|
|
|
|
|
FUNC_AUTOS,
|
|
|
|
FUNC_FRAME,
|
|
|
|
FUNC_RET,
|
|
|
|
FUNC_ARGS,
|
|
|
|
FUNC_TEMPS,
|
|
|
|
|
|
|
|
LIBCALL,
|
|
|
|
|
|
|
|
FRAME_SECTION,
|
|
|
|
AUTOS_SECTION
|
|
|
|
};
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
inline static const char *getIDName(PIC16ABINames::IDs id) {
|
|
|
|
switch (id) {
|
|
|
|
default: assert(0 && "Unknown id");
|
|
|
|
case PIC16ABINames::PREFIX_SYMBOL: return "@";
|
|
|
|
case PIC16ABINames::FUNC_AUTOS: return ".auto.";
|
|
|
|
case PIC16ABINames::FUNC_FRAME: return ".frame.";
|
|
|
|
case PIC16ABINames::FUNC_TEMPS: return ".temp.";
|
|
|
|
case PIC16ABINames::FUNC_ARGS: return ".args.";
|
|
|
|
case PIC16ABINames::FUNC_RET: return ".ret.";
|
|
|
|
case PIC16ABINames::FRAME_SECTION: return "fpdata";
|
|
|
|
case PIC16ABINames::AUTOS_SECTION: return "fadata";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
inline static PIC16ABINames::IDs getID(const std::string &Sym) {
|
|
|
|
if (Sym.find(getIDName(PIC16ABINames::FUNC_TEMPS)))
|
|
|
|
return PIC16ABINames::FUNC_TEMPS;
|
|
|
|
|
|
|
|
if (Sym.find(getIDName(PIC16ABINames::FUNC_FRAME)))
|
|
|
|
return PIC16ABINames::FUNC_FRAME;
|
|
|
|
|
|
|
|
if (Sym.find(getIDName(PIC16ABINames::FUNC_RET)))
|
|
|
|
return PIC16ABINames::FUNC_RET;
|
|
|
|
|
|
|
|
if (Sym.find(getIDName(PIC16ABINames::FUNC_ARGS)))
|
|
|
|
return PIC16ABINames::FUNC_ARGS;
|
|
|
|
|
|
|
|
if (Sym.find(getIDName(PIC16ABINames::FUNC_AUTOS)))
|
|
|
|
return PIC16ABINames::FUNC_AUTOS;
|
|
|
|
|
|
|
|
if (Sym.find(getIDName(PIC16ABINames::LIBCALL)))
|
|
|
|
return PIC16ABINames::LIBCALL;
|
|
|
|
|
|
|
|
// It does not have any ID. So its a global.
|
|
|
|
assert (0 && "Could not determine ID symbol type");
|
|
|
|
}
|
|
|
|
|
2009-01-13 19:18:47 +00:00
|
|
|
|
|
|
|
inline static const char *PIC16CondCodeToString(PIC16CC::CondCodes CC) {
|
|
|
|
switch (CC) {
|
|
|
|
default: assert(0 && "Unknown condition code");
|
|
|
|
case PIC16CC::NE: return "ne";
|
|
|
|
case PIC16CC::EQ: return "eq";
|
|
|
|
case PIC16CC::LT: return "lt";
|
2009-01-21 05:44:05 +00:00
|
|
|
case PIC16CC::ULT: return "lt";
|
2009-01-13 19:18:47 +00:00
|
|
|
case PIC16CC::LE: return "le";
|
|
|
|
case PIC16CC::GT: return "gt";
|
2009-01-21 05:44:05 +00:00
|
|
|
case PIC16CC::UGT: return "gt";
|
2009-01-13 19:18:47 +00:00
|
|
|
case PIC16CC::GE: return "ge";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-01-21 05:44:05 +00:00
|
|
|
inline static bool isSignedComparison(PIC16CC::CondCodes CC) {
|
|
|
|
switch (CC) {
|
|
|
|
default: assert(0 && "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.
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-01-13 19:18:47 +00:00
|
|
|
|
2009-05-06 08:02:01 +00:00
|
|
|
|
2008-05-13 09:02:57 +00:00
|
|
|
FunctionPass *createPIC16ISelDag(PIC16TargetMachine &TM);
|
2008-08-21 00:14:44 +00:00
|
|
|
FunctionPass *createPIC16CodePrinterPass(raw_ostream &OS,
|
2009-02-24 08:30:20 +00:00
|
|
|
PIC16TargetMachine &TM,
|
2009-04-29 23:29:43 +00:00
|
|
|
CodeGenOpt::Level OptLevel,
|
|
|
|
bool Verbose);
|
2009-05-06 08:02:01 +00:00
|
|
|
// Banksel optimzer pass.
|
|
|
|
FunctionPass *createPIC16MemSelOptimizerPass();
|
|
|
|
std::string getSectionNameForSym(const std::string &Sym);
|
2008-05-13 09:02:57 +00:00
|
|
|
} // 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
|