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Changed lowering and asmprinter to use ABI Names class called PAN.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71386 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjiv Gupta
2009-05-10 05:23:47 +00:00
parent c677fe5aba
commit 211f3624ef
7 changed files with 282 additions and 203 deletions
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127
lib/Target/PIC16/PIC16AsmPrinter.cpp
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@@ -28,22 +28,6 @@ using namespace llvm;
#include "PIC16GenAsmWriter.inc"
inline static bool isLocalToFunc (std::string &FuncName, std::string &VarName) {
if (VarName.find(FuncName + ".auto.") != std::string::npos
|| VarName.find(FuncName + ".arg.") != std::string::npos)
return true;
return false;
}
inline static bool isLocalName (std::string &Name) {
if (Name.find(".auto.") != std::string::npos
|| Name.find(".arg.") != std::string::npos)
return true;
return false;
}
bool PIC16AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
printInstruction(MI);
return true;
@@ -65,18 +49,20 @@ bool PIC16AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
// Emit the function variables.
emitFunctionData(MF);
std::string codeSection;
codeSection = "code." + CurrentFnName + ".# " + "CODE";
const Section *fCodeSection = TAI->getNamedSection(codeSection.c_str(),
SectionFlags::Code);
const char *codeSection = PAN::getCodeSectionName(CurrentFnName).c_str();
const Section *fCodeSection = TAI->getNamedSection(codeSection,
SectionFlags::Code);
O << "\n";
// Start the Code Section.
SwitchToSection (fCodeSection);
// Emit the frame address of the function at the beginning of code.
O << " retlw low(" << FunctionLabelBegin<< CurrentFnName << ".frame.)\n";
O << " retlw high(" << FunctionLabelBegin<< CurrentFnName << ".frame.)\n";
O << CurrentFnName << ":\n";
O << "\tretlw low(" << PAN::getFrameLabel(CurrentFnName) << ")\n";
O << "\tretlw high(" << PAN::getFrameLabel(CurrentFnName) << ")\n";
// Emit function start label.
O << CurrentFnName << ":\n";
// Print out code for the function.
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
@@ -136,19 +122,12 @@ void PIC16AsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
return;
case MachineOperand::MO_GlobalAddress: {
std::string Name = Mang->getValueName(MO.getGlobal());
if (isLocalName(Name))
O << FunctionLabelBegin << Mang->getValueName(MO.getGlobal());
else
O << Mang->getValueName(MO.getGlobal());
O << Mang->getValueName(MO.getGlobal());
break;
}
case MachineOperand::MO_ExternalSymbol: {
std::string Name = MO.getSymbolName();
if (Name.find("__intrinsics.") != std::string::npos)
O << MO.getSymbolName();
else
O << FunctionLabelBegin << MO.getSymbolName();
O << MO.getSymbolName();
break;
}
case MachineOperand::MO_MachineBasicBlock:
@@ -189,41 +168,44 @@ void PIC16AsmPrinter::EmitExternsAndGlobals (Module &M) {
O << "section.0" <<"\n";
for (Module::iterator I = M.begin(), E = M.end(); I != E; I++) {
std::string Name = Mang->getValueName(I);
if (Name.compare("abort") == 0)
if (Name.compare("@abort") == 0)
continue;
// If it is llvm intrinsic call then don't emit
if (Name.find("llvm.") != std::string::npos)
continue;
if (I->isDeclaration()) {
O << "\textern " <<Name << "\n";
O << "\textern " << FunctionLabelBegin << Name << ".ret.\n";
O << "\textern " << FunctionLabelBegin << Name << ".args.\n";
}
else if (I->hasExternalLinkage()) {
O << "\tglobal " << Name << "\n";
O << "\tglobal " << FunctionLabelBegin << Name << ".ret.\n";
O << "\tglobal " << FunctionLabelBegin<< Name << ".args.\n";
}
assert ((I->isDeclaration() || I->hasExternalLinkage())
&& "Not an extern function declaration or definition");
const char *directive = I->isDeclaration() ? TAI->getExternDirective() :
TAI->getGlobalDirective();
O << directive << Name << "\n";
O << directive << PAN::getRetvalLabel(Name) << "\n";
O << directive << PAN::getArgsLabel(Name) << "\n";
}
// Emit header file to include declaration of library functions
// FIXME: find out libcall names.
O << "\t#include C16IntrinsicCalls.INC\n";
// Emit declarations for external globals.
// Emit declarations for external variable declarations and definitions.
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
I != E; I++) {
// Any variables reaching here with ".auto." in its name is a local scope
// variable and should not be printed in global data section.
std::string Name = Mang->getValueName(I);
if (isLocalName (Name))
if (PAN::isLocalName(Name))
continue;
if (I->isDeclaration())
O << "\textern "<< Name << "\n";
else if (I->hasCommonLinkage() || I->hasExternalLinkage())
O << "\tglobal "<< Name << "\n";
if (!(I->isDeclaration() || I->hasExternalLinkage() ||
I->hasCommonLinkage()))
continue;
const char *directive = I->isDeclaration() ? TAI->getExternDirective() :
TAI->getGlobalDirective();
O << directive << Name << "\n";
}
}
@@ -247,7 +229,7 @@ void PIC16AsmPrinter::EmitRomData (Module &M)
// 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 = Mang->getValueName(I);
if (name.find(".") != std::string::npos)
if (PAN::isLocalName(name))
continue;
I->setSection(TAI->getReadOnlySection()->getName());
@@ -273,15 +255,14 @@ void PIC16AsmPrinter::emitFunctionData(MachineFunction &MF) {
unsigned FrameSize = 0;
// Emit the data section name.
O << "\n";
std::string SectionName = "fpdata." + CurrentFnName + ".# " + "UDATA_OVR";
const char *SectionName = PAN::getFrameSectionName(CurrentFnName).c_str();
const Section *fPDataSection = TAI->getNamedSection(SectionName.c_str(),
const Section *fPDataSection = TAI->getNamedSection(SectionName,
SectionFlags::Writeable);
SwitchToSection(fPDataSection);
// Emit function frame label
O << FunctionLabelBegin << CurrentFnName << ".frame.:\n";
O << PAN::getFrameLabel(CurrentFnName) << ":\n";
const Type *RetType = F->getReturnType();
unsigned RetSize = 0;
@@ -289,11 +270,13 @@ void PIC16AsmPrinter::emitFunctionData(MachineFunction &MF) {
RetSize = TD->getTypeAllocSize(RetType);
//Emit function return value space
// FIXME: Do not emit RetvalLable when retsize is zero. To do this
// we will need to avoid printing a global directive for Retval label
// in emitExternandGloblas.
if(RetSize > 0)
O << FunctionLabelBegin << CurrentFnName << ".ret. RES " << RetSize
<< "\n";
O << PAN::getRetvalLabel(CurrentFnName) << " RES " << RetSize << "\n";
else
O << FunctionLabelBegin << CurrentFnName << ".ret.:\n";
O << PAN::getRetvalLabel(CurrentFnName) << ": \n";
// Emit variable to hold the space for function arguments
unsigned ArgSize = 0;
@@ -302,20 +285,19 @@ void PIC16AsmPrinter::emitFunctionData(MachineFunction &MF) {
const Type *Ty = argi->getType();
ArgSize += TD->getTypeAllocSize(Ty);
}
O << FunctionLabelBegin << CurrentFnName << ".args. RES " << ArgSize
<< "\n";
O << PAN::getArgsLabel(CurrentFnName) << " RES " << ArgSize << "\n";
// Emit temporary space
int TempSize = PTLI->GetTmpSize();
if (TempSize > 0 )
O << FunctionLabelBegin << CurrentFnName << ".temp. RES " << TempSize
<<"\n";
O << PAN::getTempdataLabel(CurrentFnName) << " RES " << TempSize <<"\n";
// Emit the section name for local variables.
O << "\n";
std::string SecNameLocals = "fadata." + CurrentFnName + ".# " + "UDATA_OVR";
const char* SecNameLocals = PAN::getAutosSectionName(CurrentFnName).c_str() ;
const Section *fADataSection = TAI->getNamedSection(SecNameLocals.c_str(),
const Section *fADataSection = TAI->getNamedSection(SecNameLocals,
SectionFlags::Writeable);
SwitchToSection(fADataSection);
@@ -334,26 +316,32 @@ void PIC16AsmPrinter::emitFunctionData(MachineFunction &MF) {
// Static local varilabes of a function does not have .auto. in their
// name. They are not printed as part of function data but module
// level global data.
if (! isLocalToFunc(FuncName, VarName))
if (! PAN::isLocalToFunc(FuncName, VarName))
continue;
I->setSection("fadata." + CurrentFnName + ".#");
I->setSection(TAI->SectionForGlobal(I)->getName());
Constant *C = I->getInitializer();
const Type *Ty = C->getType();
unsigned Size = TD->getTypeAllocSize(Ty);
FrameSize += Size;
// Emit memory reserve directive.
O << FunctionLabelBegin << VarName << " RES " << Size << "\n";
O << VarName << " RES " << Size << "\n";
}
}
void PIC16AsmPrinter::EmitGlobalData (Module &M)
{
// Set the section names for all globals.
for (Module::global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I) {
I->setSection(TAI->SectionForGlobal(I)->getName());
}
const PIC16TargetAsmInfo *PTAI = static_cast<const PIC16TargetAsmInfo *>(TAI);
const_cast<PIC16TargetAsmInfo *>(PTAI)->SetSectionForGVs(M);
const TargetData *TD = TM.getTargetData();
std::vector <PIC16Section *>IDATASections = PTAI->getIDATASections();
// Now print all IDATA sections.
std::vector <PIC16Section *>IDATASections = PTAI->IDATASections;
for (unsigned i = 0; i < IDATASections.size(); i++) {
SwitchToSection(IDATASections[i]->S_);
std::vector<const GlobalVariable*> Items = IDATASections[i]->Items;
@@ -366,7 +354,8 @@ void PIC16AsmPrinter::EmitGlobalData (Module &M)
}
}
std::vector <PIC16Section *>BSSSections = PTAI->getBSSSections();
// Now print all BSS sections.
std::vector <PIC16Section *>BSSSections = PTAI->BSSSections;
for (unsigned i = 0; i < BSSSections.size(); i++) {
SwitchToSection(BSSSections[i]->S_);
std::vector<const GlobalVariable*> Items = BSSSections[i]->Items;