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Emit .global @function and .global @object entries so the Intel ias

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assembler may be used; identify LLVM output as such.

llvm-svn: 20892
This commit is contained in:
Duraid Madina 2005-03-28 15:21:43 +00:00
parent 47fcba56f8
commit 7b5f67baf9
1 changed files with 21 additions and 7 deletions
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28
lib/Target/IA64/IA64AsmPrinter.cpp
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@ -36,7 +36,7 @@ namespace {
struct IA64SharedAsmPrinter : public AsmPrinter { struct IA64SharedAsmPrinter : public AsmPrinter {
std::set<std::string> ExternalFunctionNames; std::set<std::string> ExternalFunctionNames, ExternalObjectNames;
IA64SharedAsmPrinter(std::ostream &O, TargetMachine &TM) IA64SharedAsmPrinter(std::ostream &O, TargetMachine &TM)
: AsmPrinter(O, TM) { } : AsmPrinter(O, TM) { }
@ -84,7 +84,8 @@ void IA64SharedAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
if (CP.empty()) return; if (CP.empty()) return;
O << "\n\t.section .data\n"; // would be nice to have this rodata? hmmm O << "\n\t.section .data, \"aw\", \"progbits\"\n";
// FIXME: would be nice to have rodata (no 'w') when appropriate?
for (unsigned i = 0, e = CP.size(); i != e; ++i) { for (unsigned i = 0, e = CP.size(); i != e; ++i) {
emitAlignment(TD.getTypeAlignmentShift(CP[i]->getType())); emitAlignment(TD.getTypeAlignmentShift(CP[i]->getType()));
O << ".CPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t" << CommentString O << ".CPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t" << CommentString
@ -112,7 +113,7 @@ bool IA64SharedAsmPrinter::doFinalization(Module &M) {
I->hasWeakLinkage() /* FIXME: Verify correct */)) { I->hasWeakLinkage() /* FIXME: Verify correct */)) {
SwitchSection(O, CurSection, ".data"); SwitchSection(O, CurSection, ".data");
if (I->hasInternalLinkage()) if (I->hasInternalLinkage())
O << "\t.local " << name << "\n"; // FIXME O << "\t.local " << name << "\n";
O << "\t.common " << name << "," << TD.getTypeSize(C->getType()) O << "\t.common " << name << "," << TD.getTypeSize(C->getType())
<< "," << (1 << Align); << "," << (1 << Align);
@ -169,6 +170,14 @@ bool IA64SharedAsmPrinter::doFinalization(Module &M) {
} }
O << "\n\n"; O << "\n\n";
// we print out ".global X \n .type X, @object" for each external object
O << "\n\n// (external) symbols referenced (and not defined) above: \n";
for (std::set<std::string>::iterator i = ExternalObjectNames.begin(),
e = ExternalObjectNames.end(); i!=e; ++i) {
O << "\t.global " << *i << "\n\t.type " << *i << ", @object\n";
}
O << "\n\n";
AsmPrinter::doFinalization(M); AsmPrinter::doFinalization(M);
return false; // success return false; // success
} }
@ -265,7 +274,7 @@ bool IA64AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
// Print out labels for the function. // Print out labels for the function.
O << "\n\t.section .text, \"ax\", \"progbits\"\n"; O << "\n\t.section .text, \"ax\", \"progbits\"\n";
// ^^ means "Allocated instruXions in mem, initialized" // ^^ means "Allocated instruXions in mem, initialized"
emitAlignment(4); emitAlignment(5);
O << "\t.global\t" << CurrentFnName << "\n"; O << "\t.global\t" << CurrentFnName << "\n";
O << "\t.type\t" << CurrentFnName << ", @function\n"; O << "\t.type\t" << CurrentFnName << ", @function\n";
O << CurrentFnName << ":\n"; O << CurrentFnName << ":\n";
@ -343,9 +352,12 @@ void IA64AsmPrinter::printOp(const MachineOperand &MO,
// the function somewhere (GNU gas has no problem without this, but // the function somewhere (GNU gas has no problem without this, but
// Intel ias rightly complains of an 'undefined symbol') // Intel ias rightly complains of an 'undefined symbol')
if(F && isBRCALLinsn && F->isExternal()) if(F /*&& isBRCALLinsn*/ && F->isExternal())
ExternalFunctionNames.insert(Mang->getValueName(MO.getGlobal())); ExternalFunctionNames.insert(Mang->getValueName(MO.getGlobal()));
else
if(GV->isExternal()) // e.g. stuff like 'stdin'
ExternalObjectNames.insert(Mang->getValueName(MO.getGlobal()));
if (!isBRCALLinsn) if (!isBRCALLinsn)
O << "@ltoff("; O << "@ltoff(";
if (Needfptr) if (Needfptr)
@ -364,6 +376,7 @@ void IA64AsmPrinter::printOp(const MachineOperand &MO,
} }
case MachineOperand::MO_ExternalSymbol: case MachineOperand::MO_ExternalSymbol:
O << MO.getSymbolName(); O << MO.getSymbolName();
ExternalFunctionNames.insert(MO.getSymbolName());
return; return;
default: default:
O << "<AsmPrinter: unknown operand type: " << MO.getType() << " >"; return; O << "<AsmPrinter: unknown operand type: " << MO.getType() << " >"; return;
@ -384,7 +397,8 @@ void IA64AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
bool IA64AsmPrinter::doInitialization(Module &M) { bool IA64AsmPrinter::doInitialization(Module &M) {
AsmPrinter::doInitialization(M); AsmPrinter::doInitialization(M);
O << "\t.psr lsb\n" // should be "msb" on HP-UX, for starters O << "\n.ident \"LLVM-ia64\"\n\n"
<< "\t.psr lsb\n" // should be "msb" on HP-UX, for starters
<< "\t.radix C\n" << "\t.radix C\n"
<< "\t.psr abi64\n"; // we only support 64 bits for now << "\t.psr abi64\n"; // we only support 64 bits for now
return false; return false;