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https://github.com/c64scene-ar/llvm-6502.git
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eb01abaad1
Clone functions that are shared between the Main thread and Interrupt thread. CallSites are changed in AsmPrinter currently. A better solution would have been to modify the legalizer (SoftenFloat) to allow targets to change the name of libcalls for float operations. But that currently breaks other targets. Also, cloing of automatic variables is done AsmPrinter, a better approach would be to use the ValueMap in CloneFunction itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79562 91177308-0d34-0410-b5e6-96231b3b80d8
122 lines
4.7 KiB
C++
122 lines
4.7 KiB
C++
//===-- PIC16TargetObjectFile.h - PIC16 Object Info -------------*- 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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#ifndef LLVM_TARGET_PIC16_TARGETOBJECTFILE_H
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#define LLVM_TARGET_PIC16_TARGETOBJECTFILE_H
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#include "llvm/Target/TargetLoweringObjectFile.h"
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#include "llvm/ADT/StringMap.h"
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#include <vector>
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#include <string>
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namespace llvm {
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class GlobalVariable;
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class Module;
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class PIC16TargetMachine;
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class MCSectionPIC16;
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enum { DataBankSize = 80 };
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/// PIC16 Splits the global data into mulitple udata and idata sections.
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/// Each udata and idata section needs to contain a list of globals that
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/// they contain, in order to avoid scanning over all the global values
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/// again and printing only those that match the current section.
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/// Keeping values inside the sections make printing a section much easier.
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///
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/// FIXME: MOVE ALL THIS STUFF TO MCSectionPIC16.
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///
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struct PIC16Section {
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const MCSectionPIC16 *S_; // Connection to actual Section.
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unsigned Size; // Total size of the objects contained.
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bool SectionPrinted;
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std::vector<const GlobalVariable*> Items;
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PIC16Section(const MCSectionPIC16 *s) {
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S_ = s;
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Size = 0;
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SectionPrinted = false;
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}
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bool isPrinted() const { return SectionPrinted; }
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void setPrintedStatus(bool status) { SectionPrinted = status; }
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};
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class PIC16TargetObjectFile : public TargetLoweringObjectFile {
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/// SectionsByName - Bindings of names to allocated sections.
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mutable StringMap<MCSectionPIC16*> SectionsByName;
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const TargetMachine *TM;
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const MCSectionPIC16 *getPIC16Section(const char *Name,
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SectionKind K) const;
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public:
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mutable std::vector<PIC16Section*> BSSSections;
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mutable std::vector<PIC16Section*> IDATASections;
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mutable std::vector<PIC16Section*> AutosSections;
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mutable std::vector<PIC16Section*> ROSections;
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mutable PIC16Section *ExternalVarDecls;
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mutable PIC16Section *ExternalVarDefs;
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PIC16TargetObjectFile();
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~PIC16TargetObjectFile();
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void Initialize(MCContext &Ctx, const TargetMachine &TM);
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virtual const MCSection *
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getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
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Mangler *Mang, const TargetMachine &TM) const;
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virtual const MCSection *SelectSectionForGlobal(const GlobalValue *GV,
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SectionKind Kind,
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Mangler *Mang,
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const TargetMachine&) const;
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const MCSection *getSectionForFunction(const std::string &FnName,
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bool isInterrupt=false) const;
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const MCSection *getSectionForFunctionFrame(const std::string &FnName)const;
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// If the current function is cloned then create the new autos section
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// also.
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void createClonedSectionForAutos(const std::string &SecName);
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private:
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std::string getSectionNameForSym(const std::string &Sym) const;
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const MCSection *getBSSSectionForGlobal(const GlobalVariable *GV) const;
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const MCSection *getIDATASectionForGlobal(const GlobalVariable *GV) const;
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const MCSection *getSectionForAuto(const GlobalVariable *GV) const;
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const MCSection *CreateBSSSectionForGlobal(const GlobalVariable *GV,
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std::string Addr = "") const;
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const MCSection *CreateIDATASectionForGlobal(const GlobalVariable *GV,
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std::string Addr = "") const;
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const MCSection *getROSectionForGlobal(const GlobalVariable *GV) const;
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const MCSection *CreateROSectionForGlobal(const GlobalVariable *GV,
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std::string Addr = "") const;
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const MCSection *CreateSectionForGlobal(const GlobalVariable *GV,
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Mangler *Mang,
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const std::string &Addr = "") const;
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public:
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void SetSectionForGVs(Module &M);
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const std::vector<PIC16Section*> &getBSSSections() const {
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return BSSSections;
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}
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const std::vector<PIC16Section*> &getIDATASections() const {
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return IDATASections;
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}
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const std::vector<PIC16Section*> &getAutosSections() const {
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return AutosSections;
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}
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const std::vector<PIC16Section*> &getROSections() const {
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return ROSections;
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}
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};
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} // end namespace llvm
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#endif
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