//===----------------------------------------------------------------------===//
#include "PIC16TargetAsmInfo.h"
-#include "PIC16TargetMachine.h"
-#include "llvm/GlobalValue.h"
-#include "llvm/GlobalVariable.h"
-#include "llvm/DerivedTypes.h"
+// FIXME: Layering violation to get enums and static function, should be moved
+// to separate headers.
+#include "PIC16.h"
+#include "PIC16ISelLowering.h"
using namespace llvm;
-PIC16TargetAsmInfo::
-PIC16TargetAsmInfo(const PIC16TargetMachine &TM)
- : TargetAsmInfo(TM) {
+PIC16TargetAsmInfo::PIC16TargetAsmInfo(const Target &T, const StringRef &TT) {
CommentString = ";";
+ GlobalPrefix = PAN::getTagName(PAN::PREFIX_SYMBOL);
+ GlobalDirective = "\tglobal\t";
+ ExternDirective = "\textern\t";
+
Data8bitsDirective = " db ";
Data16bitsDirective = " dw ";
Data32bitsDirective = " dl ";
- RomData8bitsDirective = " dw ";
- RomData16bitsDirective = " rom_di ";
- RomData32bitsDirective = " rom_dl ";
+ Data64bitsDirective = NULL;
ZeroDirective = NULL;
AsciiDirective = " dt ";
AscizDirective = NULL;
- BSSSection_ = getNamedSection("udata.# UDATA",
- SectionFlags::Writeable | SectionFlags::BSS);
- ReadOnlySection = getNamedSection("romdata.# ROMDATA", SectionFlags::None);
- DataSection = getNamedSection("idata.# IDATA", SectionFlags::Writeable);
- SwitchToSectionDirective = "";
- // Need because otherwise a .text symbol is emitted by DwarfWriter
- // in BeginModule, and gpasm cribbs for that .text symbol.
- TextSection = getUnnamedSection("", SectionFlags::Code);
-}
-
-const char *PIC16TargetAsmInfo::getRomDirective(unsigned size) const
-{
- if (size == 8)
- return RomData8bitsDirective;
- else if (size == 16)
- return RomData16bitsDirective;
- else if (size == 32)
- return RomData32bitsDirective;
- else
- return NULL;
-}
-
-
-const char *PIC16TargetAsmInfo::getASDirective(unsigned size,
- unsigned AS) const {
- if (AS == PIC16ISD::ROM_SPACE)
- return getRomDirective(size);
- else
- return NULL;
+
+ RomData8bitsDirective = " dw ";
+ RomData16bitsDirective = " rom_di ";
+ RomData32bitsDirective = " rom_dl ";
+
+
+ // Set it to false because we weed to generate c file name and not bc file
+ // name.
+ HasSingleParameterDotFile = false;
}
-const Section *
-PIC16TargetAsmInfo::getBSSSectionForGlobal(const GlobalVariable *GV) const {
- assert (GV->hasInitializer() && "This global doesn't need space");
- Constant *C = GV->getInitializer();
- assert (C->isNullValue() && "Unitialized globals has non-zero initializer");
-
- // Find how much space this global needs.
- const TargetData *TD = TM.getTargetData();
- const Type *Ty = C->getType();
- unsigned ValSize = TD->getTypePaddedSize(Ty);
-
- // Go through all BSS Sections and assign this variable
- // to the first available section having enough space.
- PIC16Section *FoundBSS = NULL;
- for (unsigned i = 0; i < BSSSections.size(); i++) {
- if (DataBankSize - BSSSections[i]->Size >= ValSize) {
- FoundBSS = BSSSections[i];
- break;
- }
- }
-
- // No BSS section spacious enough was found. Crate a new one.
- if (! FoundBSS) {
- char *name = new char[32];
- sprintf (name, "udata.%d.# UDATA", BSSSections.size());
- const Section *NewSection = getNamedSection (name);
-
- FoundBSS = new PIC16Section(NewSection);
-
- // Add this newly created BSS section to the list of BSSSections.
- BSSSections.push_back(FoundBSS);
- }
+const char *PIC16TargetAsmInfo::
+getDataASDirective(unsigned Size, unsigned AS) const {
+ if (AS != PIC16ISD::ROM_SPACE)
+ return 0;
- // Insert the GV into this BSS.
- FoundBSS->Items.push_back(GV);
- FoundBSS->Size += ValSize;
-
- // We can't do this here because GV is const .
- // const std::string SName = FoundBSS->S_->getName();
- // GV->setSection(SName);
-
- return FoundBSS->S_;
-}
-
-const Section *
-PIC16TargetAsmInfo::getIDATASectionForGlobal(const GlobalVariable *GV) const {
- assert (GV->hasInitializer() && "This global doesn't need space");
- Constant *C = GV->getInitializer();
- assert (!C->isNullValue() && "initialized globals has zero initializer");
- assert (GV->getType()->getAddressSpace() == PIC16ISD::RAM_SPACE &&
- "can split initialized RAM data only");
-
- // Find how much space this global needs.
- const TargetData *TD = TM.getTargetData();
- const Type *Ty = C->getType();
- unsigned ValSize = TD->getTypePaddedSize(Ty);
-
- // Go through all IDATA Sections and assign this variable
- // to the first available section having enough space.
- PIC16Section *FoundIDATA = NULL;
- for (unsigned i = 0; i < IDATASections.size(); i++) {
- if ( DataBankSize - IDATASections[i]->Size >= ValSize) {
- FoundIDATA = IDATASections[i];
- break;
- }
+ switch (Size) {
+ case 8: return RomData8bitsDirective;
+ case 16: return RomData16bitsDirective;
+ case 32: return RomData32bitsDirective;
+ default: return NULL;
}
-
- // No IDATA section spacious enough was found. Crate a new one.
- if (! FoundIDATA) {
- char *name = new char[32];
- sprintf (name, "idata.%d.# IDATA", IDATASections.size());
- const Section *NewSection = getNamedSection (name);
-
- FoundIDATA = new PIC16Section(NewSection);
-
- // Add this newly created IDATA section to the list of IDATASections.
- IDATASections.push_back(FoundIDATA);
- }
-
- // Insert the GV into this IDATA.
- FoundIDATA->Items.push_back(GV);
- FoundIDATA->Size += ValSize;
-
- // We can't do this here because GV is const .
- // GV->setSection(FoundIDATA->S->getName());
-
- return FoundIDATA->S_;
-}
-
-// Override default implementation to put the true globals into
-// multiple data sections if required.
-const Section*
-PIC16TargetAsmInfo::SelectSectionForGlobal(const GlobalValue *GV1) const {
- // We select the section based on the initializer here, so it really
- // has to be a GlobalVariable.
- if (!isa<GlobalVariable>(GV1))
- return TargetAsmInfo::SelectSectionForGlobal(GV1);
-
- const GlobalVariable *GV = dyn_cast<GlobalVariable>(GV1);
- // We are only dealing with true globals here. So names with a "."
- // are local globals. Also declarations are not entertained.
- std::string name = GV->getName();
- if (name.find(".auto.") != std::string::npos
- || name.find(".arg.") != std::string::npos || !GV->hasInitializer())
- return TargetAsmInfo::SelectSectionForGlobal(GV);
-
- const Constant *C = GV->getInitializer();
- // See if this is an uninitialized global.
- if (C->isNullValue())
- return getBSSSectionForGlobal(GV);
-
- // This is initialized data. We only deal with initialized data in RAM.
- if (GV->getType()->getAddressSpace() == PIC16ISD::RAM_SPACE)
- return getIDATASectionForGlobal(GV);
-
- // Else let the default implementation take care of it.
- return TargetAsmInfo::SelectSectionForGlobal(GV);
}
-void PIC16TargetAsmInfo::SetSectionForGVs(Module &M) {
- for (Module::global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I) {
- if (!I->hasInitializer()) // External global require no code.
- continue;
-
- // Any variables reaching here with "." in its name is a local scope
- // variable and should not be printed in global data section.
- std::string name = I->getName();
- if (name.find(".auto.") != std::string::npos
- || name.find(".arg.") != std::string::npos)
- continue;
- int AddrSpace = I->getType()->getAddressSpace();
-
- if (AddrSpace == PIC16ISD::RAM_SPACE)
- I->setSection(SectionForGlobal(I)->getName());
- }
-}
-
-
-// Helper routine.
-// Func name starts after prefix and followed by a .
-static std::string getFuncNameForSym(const std::string &Sym,
- PIC16ABINames::IDs PrefixType) {
-
- const char *prefix = getIDName (PIC16ABINames::PREFIX_SYMBOL);
-
- // This name may or may not start with prefix;
- // Func names start after prfix in that case.
- size_t func_name_start = 0;
- if (Sym.find(prefix, 0, strlen(prefix)) != std::string::npos)
- func_name_start = strlen(prefix);
-
- // Position of the . after func name.
- size_t func_name_end = Sym.find ('.', func_name_start);
-
- return Sym.substr (func_name_start, func_name_end);
-}
-
-// Helper routine to create a section name given the section prefix
-// and func name.
-static std::string
-getSectionNameForFunc (const std::string &Fname,
- const PIC16ABINames::IDs sec_id) {
- std::string sec_id_string = getIDName (sec_id);
- return sec_id_string + "." + Fname + ".#";
-}
-
-
-// Get the section for the given external symbol names.
-// This function is meant for only mangled external symbol names.
-std::string
-llvm::getSectionNameForSym(const std::string &Sym) {
- std::string SectionName;
-
- PIC16ABINames::IDs id = getID (Sym);
- std::string Fname = getFuncNameForSym (Sym, id);
-
- switch (id) {
- default : assert (0 && "Could not determine external symbol type");
- case PIC16ABINames::FUNC_FRAME:
- case PIC16ABINames::FUNC_RET:
- case PIC16ABINames::FUNC_TEMPS:
- case PIC16ABINames::FUNC_ARGS: {
- return getSectionNameForFunc (Fname, PIC16ABINames::FRAME_SECTION);
- }
- case PIC16ABINames::FUNC_AUTOS: {
- return getSectionNameForFunc (Fname, PIC16ABINames::AUTOS_SECTION);
- }
- }
-}
-
-PIC16TargetAsmInfo::~PIC16TargetAsmInfo() {
-
- for (unsigned i = 0; i < BSSSections.size(); i++) {
- delete BSSSections[i];
- }
-
- for (unsigned i = 0; i < IDATASections.size(); i++) {
- delete IDATASections[i];
- }
-}
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