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Switch Alpha to new section handling stuff

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llvm-svn: 54457
This commit is contained in:
Anton Korobeynikov 2008-08-07 09:53:57 +00:00
parent 61a8f92b2c
commit b75c98436a
1 changed files with 59 additions and 62 deletions
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121
lib/Target/Alpha/AlphaAsmPrinter.cpp
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@ -46,15 +46,16 @@ namespace {
void printOp(const MachineOperand &MO, bool IsCallOp = false);
void printOperand(const MachineInstr *MI, int opNum);
void printBaseOffsetPair (const MachineInstr *MI, int i, bool brackets=true);
void printModuleLevelGV(const GlobalVariable* GVar);
bool runOnMachineFunction(MachineFunction &F);
bool doInitialization(Module &M);
bool doFinalization(Module &M);
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode);
bool PrintAsmMemoryOperand(const MachineInstr *MI,
bool PrintAsmMemoryOperand(const MachineInstr *MI,
unsigned OpNo,
unsigned AsmVariant,
unsigned AsmVariant,
const char *ExtraCode);
};
} // end of anonymous namespace
@ -148,7 +149,7 @@ bool AlphaAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
// Print out labels for the function.
const Function *F = MF.getFunction();
SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
EmitAlignment(4, F);
switch (F->getLinkage()) {
default: assert(0 && "Unknown linkage type!");
@ -201,36 +202,38 @@ bool AlphaAsmPrinter::doInitialization(Module &M)
return AsmPrinter::doInitialization(M);
}
bool AlphaAsmPrinter::doFinalization(Module &M) {
void AlphaAsmPrinter::printModuleLevelGV(const GlobalVariable* GVar) {
const TargetData *TD = TM.getTargetData();
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I) {
if (!GVar->hasInitializer()) return; // External global require no code
if (!I->hasInitializer()) continue; // External global require no code
// Check to see if this is a special global used by LLVM, if so, emit it.
if (EmitSpecialLLVMGlobal(I))
continue;
std::string name = Mang->getValueName(I);
Constant *C = I->getInitializer();
unsigned Size = TD->getABITypeSize(C->getType());
unsigned Align = TD->getPreferredAlignmentLog(I);
//1: hidden?
if (I->hasHiddenVisibility())
O << TAI->getHiddenDirective() << name << "\n";
//2: kind
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
case GlobalValue::CommonLinkage:
O << TAI->getWeakRefDirective() << name << '\n';
break;
case GlobalValue::AppendingLinkage:
case GlobalValue::ExternalLinkage:
O << "\t.globl " << name << "\n";
// Check to see if this is a special global used by LLVM, if so, emit it.
if (EmitSpecialLLVMGlobal(GVar))
return;
std::string SectionName = TAI->SectionForGlobal(GVar);
std::string name = Mang->getValueName(GVar);
Constant *C = GVar->getInitializer();
unsigned Size = TD->getABITypeSize(C->getType());
unsigned Align = TD->getPreferredAlignmentLog(GVar);
// 0: Switch to section
SwitchToDataSection(SectionName.c_str());
// 1: Check visibility
if (GVar->hasHiddenVisibility())
O << TAI->getHiddenDirective() << name << "\n";
// 2: Kind
switch (GVar->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
case GlobalValue::WeakLinkage:
case GlobalValue::CommonLinkage:
O << TAI->getWeakRefDirective() << name << '\n';
break;
case GlobalValue::AppendingLinkage:
case GlobalValue::ExternalLinkage:
O << TAI->getGlobalDirective() << name << "\n";
break;
case GlobalValue::InternalLinkage:
break;
@ -239,53 +242,47 @@ bool AlphaAsmPrinter::doFinalization(Module &M) {
cerr << "Unknown linkage type!\n";
abort();
}
//3: Section (if changed)
if (I->hasSection() &&
(I->getSection() == ".ctors" ||
I->getSection() == ".dtors")) {
std::string SectionName = ".section\t" + I->getSection()
+ ",\"aw\",@progbits";
SwitchToDataSection(SectionName.c_str());
} else {
if (C->isNullValue())
SwitchToDataSection("\t.section\t.bss", I);
else
SwitchToDataSection("\t.section\t.data", I);
}
//4: Type, Size, Align
// 3: Type, Size, Align
if (TAI->hasDotTypeDotSizeDirective()) {
O << "\t.type\t" << name << ", @object\n";
O << "\t.size\t" << name << ", " << Size << "\n";
EmitAlignment(Align, I);
O << name << ":\n";
// If the initializer is a extern weak symbol, remember to emit the weak
// reference!
if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
if (GV->hasExternalWeakLinkage())
ExtWeakSymbols.insert(GV);
EmitGlobalConstant(C);
O << '\n';
}
EmitAlignment(Align, GVar);
O << name << ":\n";
// If the initializer is a extern weak symbol, remember to emit the weak
// reference!
if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
if (GV->hasExternalWeakLinkage())
ExtWeakSymbols.insert(GV);
EmitGlobalConstant(C);
O << '\n';
}
bool AlphaAsmPrinter::doFinalization(Module &M) {
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I)
printModuleLevelGV(I);
return AsmPrinter::doFinalization(M);
}
/// PrintAsmOperand - Print out an operand for an inline asm expression.
///
bool AlphaAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant,
unsigned AsmVariant,
const char *ExtraCode) {
printOperand(MI, OpNo);
return false;
}
bool AlphaAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
bool AlphaAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
unsigned OpNo,
unsigned AsmVariant,
unsigned AsmVariant,
const char *ExtraCode) {
if (ExtraCode && ExtraCode[0])
return true; // Unknown modifier.