mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-18 12:29:27 +00:00
Move printing of module-level GVs into dedicated helper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52864 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
parent
31f98154a7
commit
e51ab444f4
@ -769,221 +769,222 @@ bool X86ATTAsmPrinter::doInitialization(Module &M) {
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}
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bool X86ATTAsmPrinter::doFinalization(Module &M) {
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// Note: this code is not shared by the Intel printer as it is too different
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// from how MASM does things. When making changes here don't forget to look
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// at X86IntelAsmPrinter::doFinalization().
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void X86ATTAsmPrinter::printModuleLevelGV(const GlobalVariable* GVar) {
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const TargetData *TD = TM.getTargetData();
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if (!GVar->hasInitializer())
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return; // External global require no code
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// Check to see if this is a special global used by LLVM, if so, emit it.
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if (EmitSpecialLLVMGlobal(GVar)) {
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if (Subtarget->isTargetDarwin() &&
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TM.getRelocationModel() == Reloc::Static) {
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if (GVar->getName() == "llvm.global_ctors")
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O << ".reference .constructors_used\n";
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else if (GVar->getName() == "llvm.global_dtors")
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O << ".reference .destructors_used\n";
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}
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return;
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}
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std::string name = Mang->getValueName(GVar);
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Constant *C = GVar->getInitializer();
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const Type *Type = C->getType();
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unsigned Size = TD->getABITypeSize(Type);
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unsigned Align = TD->getPreferredAlignmentLog(GVar);
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if (GVar->hasHiddenVisibility()) {
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if (const char *Directive = TAI->getHiddenDirective())
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O << Directive << name << "\n";
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} else if (GVar->hasProtectedVisibility()) {
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if (const char *Directive = TAI->getProtectedDirective())
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O << Directive << name << "\n";
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}
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if (Subtarget->isTargetELF())
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O << "\t.type\t" << name << ",@object\n";
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if (C->isNullValue() && !GVar->hasSection()) {
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if (GVar->hasExternalLinkage()) {
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if (const char *Directive = TAI->getZeroFillDirective()) {
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O << "\t.globl " << name << "\n";
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O << Directive << "__DATA, __common, " << name << ", "
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<< Size << ", " << Align << "\n";
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return;
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}
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}
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if (!GVar->isThreadLocal() &&
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(GVar->hasInternalLinkage() || GVar->hasWeakLinkage() ||
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GVar->hasLinkOnceLinkage() || GVar->hasCommonLinkage())) {
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if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
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if (!NoZerosInBSS && TAI->getBSSSection())
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SwitchToDataSection(TAI->getBSSSection(), GVar);
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else
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SwitchToDataSection(TAI->getDataSection(), GVar);
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if (TAI->getLCOMMDirective() != NULL) {
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if (GVar->hasInternalLinkage()) {
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O << TAI->getLCOMMDirective() << name << "," << Size;
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if (Subtarget->isTargetDarwin())
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O << "," << Align;
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} else if (Subtarget->isTargetDarwin() && !GVar->hasCommonLinkage()) {
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O << "\t.globl " << name << "\n"
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<< TAI->getWeakDefDirective() << name << "\n";
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SwitchToDataSection("\t.section __DATA,__datacoal_nt,coalesced", GVar);
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EmitAlignment(Align, GVar);
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O << name << ":\t\t\t\t" << TAI->getCommentString() << " ";
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PrintUnmangledNameSafely(GVar, O);
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O << "\n";
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EmitGlobalConstant(C);
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return;
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} else {
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O << TAI->getCOMMDirective() << name << "," << Size;
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// Leopard and above support aligned common symbols.
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if (Subtarget->getDarwinVers() >= 9)
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O << "," << Align;
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}
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} else {
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if (!Subtarget->isTargetCygMing()) {
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if (GVar->hasInternalLinkage())
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O << "\t.local\t" << name << "\n";
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}
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O << TAI->getCOMMDirective() << name << "," << Size;
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if (TAI->getCOMMDirectiveTakesAlignment())
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O << "," << (TAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
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}
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O << "\t\t" << TAI->getCommentString() << " ";
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PrintUnmangledNameSafely(GVar, O);
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O << "\n";
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return;
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}
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}
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switch (GVar->getLinkage()) {
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case GlobalValue::CommonLinkage:
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case GlobalValue::LinkOnceLinkage:
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case GlobalValue::WeakLinkage:
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if (Subtarget->isTargetDarwin()) {
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O << "\t.globl " << name << "\n"
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<< TAI->getWeakDefDirective() << name << "\n";
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if (!GVar->isConstant())
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SwitchToDataSection("\t.section __DATA,__datacoal_nt,coalesced", GVar);
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else {
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const ArrayType *AT = dyn_cast<ArrayType>(Type);
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if (AT && AT->getElementType()==Type::Int8Ty)
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SwitchToDataSection("\t.section __TEXT,__const_coal,coalesced", GVar);
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else
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SwitchToDataSection("\t.section __DATA,__const_coal,coalesced", GVar);
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}
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} else if (Subtarget->isTargetCygMing()) {
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std::string SectionName(".section\t.data$linkonce." +
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name +
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",\"aw\"");
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SwitchToDataSection(SectionName.c_str(), GVar);
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O << "\t.globl\t" << name << "\n"
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<< "\t.linkonce same_size\n";
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} else {
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std::string SectionName("\t.section\t.llvm.linkonce.d." +
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name +
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",\"aw\",@progbits");
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SwitchToDataSection(SectionName.c_str(), GVar);
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O << "\t.weak\t" << name << "\n";
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}
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break;
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case GlobalValue::DLLExportLinkage:
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DLLExportedGVs.insert(Mang->makeNameProper(GVar->getName(),""));
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// FALL THROUGH
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case GlobalValue::AppendingLinkage:
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// FIXME: appending linkage variables should go into a section of
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// their name or something. For now, just emit them as external.
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case GlobalValue::ExternalLinkage:
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// If external or appending, declare as a global symbol
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O << "\t.globl " << name << "\n";
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// FALL THROUGH
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case GlobalValue::InternalLinkage: {
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if (GVar->isConstant()) {
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const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
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if (TAI->getCStringSection() && CVA && CVA->isCString()) {
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SwitchToDataSection(TAI->getCStringSection(), GVar);
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break;
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}
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}
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// FIXME: special handling for ".ctors" & ".dtors" sections
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if (GVar->hasSection() &&
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(GVar->getSection() == ".ctors" || GVar->getSection() == ".dtors")) {
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std::string SectionName = ".section " + GVar->getSection();
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if (Subtarget->isTargetCygMing()) {
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SectionName += ",\"aw\"";
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} else {
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assert(!Subtarget->isTargetDarwin());
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SectionName += ",\"aw\",@progbits";
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}
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SwitchToDataSection(SectionName.c_str());
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} else if (GVar->hasSection() && Subtarget->isTargetDarwin()) {
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// Honor all section names on Darwin; ObjC uses this
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std::string SectionName = ".section " + GVar->getSection();
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SwitchToDataSection(SectionName.c_str());
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} else {
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if (C->isNullValue() && !NoZerosInBSS && TAI->getBSSSection())
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SwitchToDataSection(GVar->isThreadLocal() ? TAI->getTLSBSSSection() :
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TAI->getBSSSection(), GVar);
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else if (!GVar->isConstant())
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SwitchToDataSection(GVar->isThreadLocal() ? TAI->getTLSDataSection() :
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TAI->getDataSection(), GVar);
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else if (GVar->isThreadLocal())
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SwitchToDataSection(TAI->getTLSDataSection());
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else {
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// Read-only data.
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bool HasReloc = C->ContainsRelocations();
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if (HasReloc &&
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Subtarget->isTargetDarwin() &&
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TM.getRelocationModel() != Reloc::Static)
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SwitchToDataSection("\t.const_data\n");
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else if (!HasReloc && Size == 4 &&
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TAI->getFourByteConstantSection())
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SwitchToDataSection(TAI->getFourByteConstantSection(), GVar);
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else if (!HasReloc && Size == 8 &&
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TAI->getEightByteConstantSection())
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SwitchToDataSection(TAI->getEightByteConstantSection(), GVar);
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else if (!HasReloc && Size == 16 &&
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TAI->getSixteenByteConstantSection())
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SwitchToDataSection(TAI->getSixteenByteConstantSection(), GVar);
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else if (TAI->getReadOnlySection())
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SwitchToDataSection(TAI->getReadOnlySection(), GVar);
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else
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SwitchToDataSection(TAI->getDataSection(), GVar);
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}
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}
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break;
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}
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default:
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assert(0 && "Unknown linkage type!");
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}
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EmitAlignment(Align, GVar);
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O << name << ":\t\t\t\t" << TAI->getCommentString() << " ";
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PrintUnmangledNameSafely(GVar, O);
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O << "\n";
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if (TAI->hasDotTypeDotSizeDirective())
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O << "\t.size\t" << name << ", " << Size << "\n";
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// If the initializer is a extern weak symbol, remember to emit the weak
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// reference!
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if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
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if (GV->hasExternalWeakLinkage())
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ExtWeakSymbols.insert(GV);
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EmitGlobalConstant(C);
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}
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bool X86ATTAsmPrinter::doFinalization(Module &M) {
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// Print out module-level global variables here.
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for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
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I != E; ++I) {
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if (!I->hasInitializer())
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continue; // External global require no code
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// Check to see if this is a special global used by LLVM, if so, emit it.
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if (EmitSpecialLLVMGlobal(I)) {
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if (Subtarget->isTargetDarwin() &&
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TM.getRelocationModel() == Reloc::Static) {
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if (I->getName() == "llvm.global_ctors")
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O << ".reference .constructors_used\n";
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else if (I->getName() == "llvm.global_dtors")
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O << ".reference .destructors_used\n";
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}
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continue;
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}
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std::string name = Mang->getValueName(I);
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Constant *C = I->getInitializer();
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const Type *Type = C->getType();
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unsigned Size = TD->getABITypeSize(Type);
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unsigned Align = TD->getPreferredAlignmentLog(I);
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if (I->hasHiddenVisibility()) {
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if (const char *Directive = TAI->getHiddenDirective())
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O << Directive << name << "\n";
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} else if (I->hasProtectedVisibility()) {
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if (const char *Directive = TAI->getProtectedDirective())
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O << Directive << name << "\n";
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}
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if (Subtarget->isTargetELF())
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O << "\t.type\t" << name << ",@object\n";
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if (C->isNullValue() && !I->hasSection()) {
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if (I->hasExternalLinkage()) {
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if (const char *Directive = TAI->getZeroFillDirective()) {
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O << "\t.globl " << name << "\n";
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O << Directive << "__DATA, __common, " << name << ", "
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<< Size << ", " << Align << "\n";
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continue;
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}
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}
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if (!I->isThreadLocal() &&
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(I->hasInternalLinkage() || I->hasWeakLinkage() ||
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I->hasLinkOnceLinkage() || I->hasCommonLinkage())) {
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if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
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if (!NoZerosInBSS && TAI->getBSSSection())
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SwitchToDataSection(TAI->getBSSSection(), I);
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else
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SwitchToDataSection(TAI->getDataSection(), I);
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if (TAI->getLCOMMDirective() != NULL) {
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if (I->hasInternalLinkage()) {
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O << TAI->getLCOMMDirective() << name << "," << Size;
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if (Subtarget->isTargetDarwin())
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O << "," << Align;
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} else if (Subtarget->isTargetDarwin() && !I->hasCommonLinkage()) {
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O << "\t.globl " << name << "\n"
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<< TAI->getWeakDefDirective() << name << "\n";
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SwitchToDataSection("\t.section __DATA,__datacoal_nt,coalesced", I);
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EmitAlignment(Align, I);
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O << name << ":\t\t\t\t" << TAI->getCommentString() << " ";
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PrintUnmangledNameSafely(I, O);
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O << "\n";
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EmitGlobalConstant(C);
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continue;
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} else {
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O << TAI->getCOMMDirective() << name << "," << Size;
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// Leopard and above support aligned common symbols.
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if (Subtarget->getDarwinVers() >= 9)
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O << "," << Align;
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}
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} else {
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if (!Subtarget->isTargetCygMing()) {
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if (I->hasInternalLinkage())
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O << "\t.local\t" << name << "\n";
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}
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O << TAI->getCOMMDirective() << name << "," << Size;
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if (TAI->getCOMMDirectiveTakesAlignment())
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O << "," << (TAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
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}
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O << "\t\t" << TAI->getCommentString() << " ";
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PrintUnmangledNameSafely(I, O);
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O << "\n";
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continue;
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}
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}
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switch (I->getLinkage()) {
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case GlobalValue::CommonLinkage:
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case GlobalValue::LinkOnceLinkage:
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case GlobalValue::WeakLinkage:
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if (Subtarget->isTargetDarwin()) {
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O << "\t.globl " << name << "\n"
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<< TAI->getWeakDefDirective() << name << "\n";
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if (!I->isConstant())
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SwitchToDataSection("\t.section __DATA,__datacoal_nt,coalesced", I);
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else {
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const ArrayType *AT = dyn_cast<ArrayType>(Type);
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if (AT && AT->getElementType()==Type::Int8Ty)
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SwitchToDataSection("\t.section __TEXT,__const_coal,coalesced", I);
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else
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SwitchToDataSection("\t.section __DATA,__const_coal,coalesced", I);
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}
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} else if (Subtarget->isTargetCygMing()) {
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std::string SectionName(".section\t.data$linkonce." +
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name +
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",\"aw\"");
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SwitchToDataSection(SectionName.c_str(), I);
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O << "\t.globl\t" << name << "\n"
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<< "\t.linkonce same_size\n";
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} else {
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std::string SectionName("\t.section\t.llvm.linkonce.d." +
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name +
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",\"aw\",@progbits");
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SwitchToDataSection(SectionName.c_str(), I);
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O << "\t.weak\t" << name << "\n";
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}
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break;
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case GlobalValue::DLLExportLinkage:
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DLLExportedGVs.insert(Mang->makeNameProper(I->getName(),""));
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// FALL THROUGH
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case GlobalValue::AppendingLinkage:
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// FIXME: appending linkage variables should go into a section of
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// their name or something. For now, just emit them as external.
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case GlobalValue::ExternalLinkage:
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// If external or appending, declare as a global symbol
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O << "\t.globl " << name << "\n";
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// FALL THROUGH
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case GlobalValue::InternalLinkage: {
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if (I->isConstant()) {
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const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
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if (TAI->getCStringSection() && CVA && CVA->isCString()) {
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SwitchToDataSection(TAI->getCStringSection(), I);
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break;
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}
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}
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// FIXME: special handling for ".ctors" & ".dtors" sections
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if (I->hasSection() &&
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(I->getSection() == ".ctors" ||
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I->getSection() == ".dtors")) {
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std::string SectionName = ".section " + I->getSection();
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if (Subtarget->isTargetCygMing()) {
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SectionName += ",\"aw\"";
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} else {
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assert(!Subtarget->isTargetDarwin());
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SectionName += ",\"aw\",@progbits";
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}
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SwitchToDataSection(SectionName.c_str());
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} else if (I->hasSection() && Subtarget->isTargetDarwin()) {
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// Honor all section names on Darwin; ObjC uses this
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std::string SectionName = ".section " + I->getSection();
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SwitchToDataSection(SectionName.c_str());
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} else {
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if (C->isNullValue() && !NoZerosInBSS && TAI->getBSSSection())
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SwitchToDataSection(I->isThreadLocal() ? TAI->getTLSBSSSection() :
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TAI->getBSSSection(), I);
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else if (!I->isConstant())
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SwitchToDataSection(I->isThreadLocal() ? TAI->getTLSDataSection() :
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TAI->getDataSection(), I);
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else if (I->isThreadLocal())
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SwitchToDataSection(TAI->getTLSDataSection());
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else {
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// Read-only data.
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bool HasReloc = C->ContainsRelocations();
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if (HasReloc &&
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Subtarget->isTargetDarwin() &&
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TM.getRelocationModel() != Reloc::Static)
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SwitchToDataSection("\t.const_data\n");
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else if (!HasReloc && Size == 4 &&
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TAI->getFourByteConstantSection())
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SwitchToDataSection(TAI->getFourByteConstantSection(), I);
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else if (!HasReloc && Size == 8 &&
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TAI->getEightByteConstantSection())
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SwitchToDataSection(TAI->getEightByteConstantSection(), I);
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else if (!HasReloc && Size == 16 &&
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TAI->getSixteenByteConstantSection())
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SwitchToDataSection(TAI->getSixteenByteConstantSection(), I);
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else if (TAI->getReadOnlySection())
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SwitchToDataSection(TAI->getReadOnlySection(), I);
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else
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SwitchToDataSection(TAI->getDataSection(), I);
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}
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}
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break;
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}
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default:
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assert(0 && "Unknown linkage type!");
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}
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EmitAlignment(Align, I);
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O << name << ":\t\t\t\t" << TAI->getCommentString() << " ";
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PrintUnmangledNameSafely(I, O);
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O << "\n";
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||||
if (TAI->hasDotTypeDotSizeDirective())
|
||||
O << "\t.size\t" << name << ", " << Size << "\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);
|
||||
}
|
||||
I != E; ++I)
|
||||
printModuleLevelGV(I);
|
||||
|
||||
// Output linker support code for dllexported globals
|
||||
if (!DLLExportedGVs.empty())
|
||||
|
||||
@ -118,6 +118,8 @@ struct VISIBILITY_HIDDEN X86ATTAsmPrinter : public AsmPrinter {
|
||||
unsigned uid) const;
|
||||
|
||||
void printPICLabel(const MachineInstr *MI, unsigned Op);
|
||||
void printModuleLevelGV(const GlobalVariable* GVar);
|
||||
|
||||
bool runOnMachineFunction(MachineFunction &F);
|
||||
|
||||
/// getSectionForFunction - Return the section that we should emit the
|
||||
|
||||
Loading…
Reference in New Issue
Block a user