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https://github.com/c64scene-ar/llvm-6502.git
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d49baefaad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100601 91177308-0d34-0410-b5e6-96231b3b80d8
138 lines
3.3 KiB
C++
138 lines
3.3 KiB
C++
//===-- PIC16.h - Top-level interface for PIC16 representation --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the entry points for global functions defined in
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// the LLVM PIC16 back-end.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TARGET_PIC16_H
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#define LLVM_TARGET_PIC16_H
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Target/TargetMachine.h"
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#include <cassert>
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#include <sstream>
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#include <cstring>
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#include <string>
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#include <vector>
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namespace llvm {
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class PIC16TargetMachine;
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class FunctionPass;
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class MachineCodeEmitter;
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class formatted_raw_ostream;
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namespace PIC16CC {
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enum CondCodes {
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EQ,
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NE,
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LT,
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LE,
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GT,
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GE,
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ULT,
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UGT,
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ULE,
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UGE
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};
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}
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enum PIC16SectionType {
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CODE,
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UDATA,
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IDATA,
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ROMDATA,
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UDATA_OVR,
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UDATA_SHR
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};
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class ESNames {
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std::vector<char*> stk;
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ESNames() {}
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public:
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~ESNames() {
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std::vector<char*>::iterator it = stk.end();
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it--;
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while(stk.end() != stk.begin())
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{
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char* p = *it;
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delete [] p;
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it--;
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stk.pop_back();
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}
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}
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// External symbol names require memory to live till the program end.
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// So we have to allocate it and keep. Push all such allocations into a
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// vector so that they get freed up on termination.
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inline static const char *createESName (const std::string &name) {
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static ESNames esn;
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char *tmpName = new char[name.size() + 1];
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memcpy(tmpName, name.c_str(), name.size() + 1);
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esn.stk.push_back(tmpName);
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return tmpName;
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}
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};
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inline static const char *PIC16CondCodeToString(PIC16CC::CondCodes CC) {
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switch (CC) {
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default: llvm_unreachable("Unknown condition code");
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case PIC16CC::NE: return "ne";
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case PIC16CC::EQ: return "eq";
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case PIC16CC::LT: return "lt";
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case PIC16CC::ULT: return "lt";
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case PIC16CC::LE: return "le";
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case PIC16CC::ULE: return "le";
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case PIC16CC::GT: return "gt";
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case PIC16CC::UGT: return "gt";
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case PIC16CC::GE: return "ge";
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case PIC16CC::UGE: return "ge";
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}
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}
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inline static bool isSignedComparison(PIC16CC::CondCodes CC) {
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switch (CC) {
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default: llvm_unreachable("Unknown condition code");
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case PIC16CC::NE:
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case PIC16CC::EQ:
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case PIC16CC::LT:
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case PIC16CC::LE:
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case PIC16CC::GE:
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case PIC16CC::GT:
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return true;
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case PIC16CC::ULT:
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case PIC16CC::UGT:
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case PIC16CC::ULE:
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case PIC16CC::UGE:
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return false; // condition codes for unsigned comparison.
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}
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}
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FunctionPass *createPIC16ISelDag(PIC16TargetMachine &TM);
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// Banksel optimizer pass.
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FunctionPass *createPIC16MemSelOptimizerPass();
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extern Target ThePIC16Target;
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extern Target TheCooperTarget;
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} // end namespace llvm;
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// Defines symbolic names for PIC16 registers. This defines a mapping from
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// register name to register number.
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#include "PIC16GenRegisterNames.inc"
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// Defines symbolic names for the PIC16 instructions.
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#include "PIC16GenInstrNames.inc"
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#endif
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