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Convert GVStubs and HiddenGVStubs to work more like the X86 backend, this

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eliminates a bunch of uses of "printSuffixedName" and "getGlobalLinkName".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75719 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-07-15 01:14:44 +00:00
parent ea56f109db
commit 8f831cbf0d
1 changed files with 52 additions and 56 deletions
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108
lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
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@ -53,7 +53,8 @@ STATISTIC(EmittedInsts, "Number of machine instrs printed");
namespace {
class VISIBILITY_HIDDEN PPCAsmPrinter : public AsmPrinter {
protected:
StringSet<> FnStubs, GVStubs, HiddenGVStubs;
StringSet<> FnStubs;
StringMap<std::string> GVStubs, HiddenGVStubs;
const PPCSubtarget &Subtarget;
public:
explicit PPCAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
@ -363,37 +364,38 @@ void PPCAsmPrinter::printOp(const MachineOperand &MO) {
O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
<< '_' << MO.getIndex();
return;
case MachineOperand::MO_ExternalSymbol:
case MachineOperand::MO_ExternalSymbol: {
// Computing the address of an external symbol, not calling it.
std::string Name(TAI->getGlobalPrefix());
Name += MO.getSymbolName();
if (TM.getRelocationModel() != Reloc::Static) {
std::string Name(TAI->getGlobalPrefix());
Name += MO.getSymbolName();
GVStubs.insert(Name);
printSuffixedName(Name, "$non_lazy_ptr");
return;
GVStubs[Name] = Name+"$non_lazy_ptr";
Name += "$non_lazy_ptr";
}
O << TAI->getGlobalPrefix() << MO.getSymbolName();
O << Name;
return;
}
case MachineOperand::MO_GlobalAddress: {
// Computing the address of a global symbol, not calling it.
GlobalValue *GV = MO.getGlobal();
std::string Name = Mang->getMangledName(GV);
std::string Name;
// External or weakly linked global variables need non-lazily-resolved stubs
if (TM.getRelocationModel() != Reloc::Static) {
if (GV->isDeclaration() || GV->isWeakForLinker()) {
if (!GV->hasHiddenVisibility()) {
GVStubs.insert(Name);
printSuffixedName(Name, "$non_lazy_ptr");
} else if (GV->isDeclaration() || GV->hasCommonLinkage() ||
GV->hasAvailableExternallyLinkage()) {
HiddenGVStubs.insert(Name);
printSuffixedName(Name, "$non_lazy_ptr");
} else {
O << Name;
}
return;
if (TM.getRelocationModel() != Reloc::Static &&
(GV->isDeclaration() || GV->isWeakForLinker())) {
if (!GV->hasHiddenVisibility()) {
Name = Mang->getMangledName(GV, "$non_lazy_ptr", true);
GVStubs[Mang->getMangledName(GV)] = Name;
} else if (GV->isDeclaration() || GV->hasCommonLinkage() ||
GV->hasAvailableExternallyLinkage()) {
Name = Mang->getMangledName(GV, "$non_lazy_ptr", true);
HiddenGVStubs[Mang->getMangledName(GV)] = Name;
} else {
Name = Mang->getMangledName(GV);
}
} else {
Name = Mang->getMangledName(GV);
}
O << Name;
@ -411,14 +413,16 @@ void PPCAsmPrinter::printOp(const MachineOperand &MO) {
///
void PPCAsmPrinter::EmitExternalGlobal(const GlobalVariable *GV) {
std::string Name;
getGlobalLinkName(GV, Name);
if (TM.getRelocationModel() != Reloc::Static) {
Name = Mang->getMangledName(GV, "$non_lazy_ptr", true);
if (GV->hasHiddenVisibility())
HiddenGVStubs.insert(Name);
HiddenGVStubs[Mang->getMangledName(GV)] = Name;
else
GVStubs.insert(Name);
printSuffixedName(Name, "$non_lazy_ptr");
return;
GVStubs[Mang->getMangledName(GV)] = Name;
} else {
Name = Mang->getMangledName(GV);
}
O << Name;
}
@ -964,10 +968,10 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
if (TM.getRelocationModel() == Reloc::PIC_ && !FnStubs.empty()) {
SwitchToTextSection("\t.section __TEXT,__picsymbolstub1,symbol_stubs,"
"pure_instructions,32");
for (StringSet<>::iterator i = FnStubs.begin(), e = FnStubs.end();
i != e; ++i) {
for (StringSet<>::iterator I = FnStubs.begin(), E = FnStubs.end();
I != E; ++I) {
EmitAlignment(4);
const char *p = i->getKeyData();
const char *p = I->getKeyData();
bool hasQuote = p[0]=='\"';
printSuffixedName(p, "$stub");
O << ":\n";
@ -1019,10 +1023,10 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
} else if (!FnStubs.empty()) {
SwitchToTextSection("\t.section __TEXT,__symbol_stub1,symbol_stubs,"
"pure_instructions,16");
for (StringSet<>::iterator i = FnStubs.begin(), e = FnStubs.end();
i != e; ++i) {
for (StringSet<>::iterator I = FnStubs.begin(), E = FnStubs.end();
I != E; ++I) {
EmitAlignment(4);
const char *p = i->getKeyData();
const char *p = I->getKeyData();
printSuffixedName(p, "$stub");
O << ":\n";
O << "\t.indirect_symbol " << p << '\n';
@ -1055,39 +1059,31 @@ bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
// Only referenced functions get into the Personalities list.
const std::vector<Function *> &Personalities = MMI->getPersonalities();
for (std::vector<Function *>::const_iterator I = Personalities.begin(),
E = Personalities.end(); I != E; ++I)
if (*I) GVStubs.insert("_" + (*I)->getName());
E = Personalities.end(); I != E; ++I) {
if (*I)
GVStubs[Mang->getMangledName(*I)] =
Mang->getMangledName(*I, "$non_lazy_ptr", true);;
}
}
// Output stubs for external and common global variables.
if (!GVStubs.empty()) {
SwitchToDataSection(".non_lazy_symbol_pointer");
for (StringSet<>::iterator i = GVStubs.begin(), e = GVStubs.end();
i != e; ++i) {
std::string p = i->getKeyData();
printSuffixedName(p, "$non_lazy_ptr");
O << ":\n";
O << "\t.indirect_symbol " << p << '\n';
if (isPPC64)
O << "\t.quad\t0\n";
else
O << "\t.long\t0\n";
for (StringMap<std::string>::iterator I = GVStubs.begin(),
E = GVStubs.end(); I != E; ++I) {
O << I->second << ":\n";
O << "\t.indirect_symbol " << I->getKeyData() << '\n';
O << (isPPC64 ? "\t.quad\t0\n" : "\t.long\t0\n");
}
}
if (!HiddenGVStubs.empty()) {
SwitchToSection(TAI->getDataSection());
for (StringSet<>::iterator i = HiddenGVStubs.begin(), e = HiddenGVStubs.end();
i != e; ++i) {
std::string p = i->getKeyData();
EmitAlignment(isPPC64 ? 3 : 2);
printSuffixedName(p, "$non_lazy_ptr");
O << ":\n";
if (isPPC64)
O << "\t.quad\t";
else
O << "\t.long\t";
O << p << '\n';
EmitAlignment(isPPC64 ? 3 : 2);
for (StringMap<std::string>::iterator I = HiddenGVStubs.begin(),
E = HiddenGVStubs.end(); I != E; ++I) {
O << I->second << ":\n";
O << (isPPC64 ? "\t.quad\t" : "\t.long\t") << I->getKeyData() << '\n';
}
}