// Allow the target to emit any magic that it wants at the start of the file.
EmitStartOfAsmFile(M);
+ // Very minimal debug info. It is ignored if we emit actual debug info. If we
+ // don't, this at least helps the user find where a global came from.
if (MAI->hasSingleParameterDotFile()) {
- // Very minimal debug info. It is ignored if we emit actual
- // debug info. If we don't, this at least helps the user find where
- // a function came from.
- O << "\t.file\t\"" << M.getModuleIdentifier() << "\"\n";
+ // .file "foo.c"
+ OutStreamer.EmitFileDirective(M.getModuleIdentifier());
}
GCModuleInfo *MI = getAnalysisIfAvailable<GCModuleInfo>();
MCSymbol *GVSym = GetGlobalValueSymbol(GV);
printVisibility(GVSym, GV->getVisibility());
- if (MAI->hasDotTypeDotSizeDirective()) {
- O << "\t.type\t" << *GVSym;
- if (MAI->getCommentString()[0] != '@')
- O << ",@object\n";
- else
- O << ",%object\n";
- }
+ if (MAI->hasDotTypeDotSizeDirective())
+ OutStreamer.EmitSymbolAttribute(GVSym, MCSA_ELF_TypeObject);
SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, TM);
return;
}
- if (const char *LComm = MAI->getLCOMMDirective()) {
+ if (MAI->hasLCOMMDirective()) {
// .lcomm _foo, 42
- O << LComm << *GVSym << ',' << Size << '\n';
+ OutStreamer.EmitLocalCommonSymbol(GVSym, Size);
return;
}
} else if (const char *LinkOnce = MAI->getLinkOnceDirective()) {
// .globl _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Global);
+ // FIXME: linkonce should be a section attribute, handled by COFF Section
+ // assignment.
+ // http://sourceware.org/binutils/docs-2.20/as/Linkonce.html#Linkonce
// .linkonce same_size
O << LinkOnce;
} else {
EmitGlobalConstant(GV->getInitializer());
if (MAI->hasDotTypeDotSizeDirective())
- O << "\t.size\t" << *GVSym << ", " << Size << '\n';
+ // .size foo, 42
+ OutStreamer.EmitELFSize(GVSym, MCConstantExpr::Create(Size, OutContext));
OutStreamer.AddBlankLine();
}
// to be executable. Some targets have a directive to declare this.
Function *InitTrampolineIntrinsic = M.getFunction("llvm.init.trampoline");
if (!InitTrampolineIntrinsic || InitTrampolineIntrinsic->use_empty())
- // FIXME: This is actually a section switch on linux/x86 and systemz, use
- // switch section.
- if (MAI->getNonexecutableStackDirective())
- O << MAI->getNonexecutableStackDirective() << '\n';
-
+ if (MCSection *S = MAI->getNonexecutableStackSection(OutContext))
+ OutStreamer.SwitchSection(S);
// Allow the target to emit any magic that it wants at the end of the file,
// after everything else has gone out.
OutStreamer.EmitLabel(GetJTISymbol(i));
- for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) {
- printPICJumpTableEntry(MJTI, JTBBs[ii], i);
- O << '\n';
+ if (!IsPic) {
+ // In non-pic mode, the entries in the jump table are direct references
+ // to the basic blocks.
+ unsigned EntrySize = MJTI->getEntrySize();
+ for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) {
+ MCSymbol *MBBSym = GetMBBSymbol(JTBBs[ii]->getNumber());
+ OutStreamer.EmitValue(MCSymbolRefExpr::Create(MBBSym, OutContext),
+ EntrySize, /*addrspace*/0);
+ }
+ } else {
+ for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii)
+ printPICJumpTableEntry(MJTI, JTBBs[ii], i);
}
}
}
void AsmPrinter::printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
const MachineBasicBlock *MBB,
unsigned uid) const {
- bool isPIC = TM.getRelocationModel() == Reloc::PIC_;
-
- // Use JumpTableDirective otherwise honor the entry size from the jump table
- // info.
- const char *JTEntryDirective = MAI->getJumpTableDirective(isPIC);
- bool HadJTEntryDirective = JTEntryDirective != NULL;
- if (!HadJTEntryDirective) {
- JTEntryDirective = MJTI->getEntrySize() == 4 ?
- MAI->getData32bitsDirective() : MAI->getData64bitsDirective();
+ // If the target supports GPRel, use it.
+ if (const char *GPRel32Dir = MAI->getGPRel32Directive()) {
+ O << GPRel32Dir << *GetMBBSymbol(MBB->getNumber()) << '\n';
+ return;
}
-
- O << JTEntryDirective << ' ';
-
+
// If we have emitted set directives for the jump table entries, print
// them rather than the entries themselves. If we're emitting PIC, then
// emit the table entries as differences between two text section labels.
- // If we're emitting non-PIC code, then emit the entries as direct
- // references to the target basic blocks.
- if (!isPIC) {
- O << *GetMBBSymbol(MBB->getNumber());
- } else if (MAI->getSetDirective()) {
- O << MAI->getPrivateGlobalPrefix() << getFunctionNumber()
- << '_' << uid << "_set_" << MBB->getNumber();
+ const MCExpr *Val;
+ if (MAI->getSetDirective()) {
+ // If we used .set, reference the .set's symbol.
+ Val = MCSymbolRefExpr::Create(GetJTSetSymbol(uid, MBB->getNumber()),
+ OutContext);
} else {
- O << *GetMBBSymbol(MBB->getNumber());
- // If the arch uses custom Jump Table directives, don't calc relative to
- // JT.
- if (!HadJTEntryDirective)
- O << '-' << *GetJTISymbol(uid);
+ // Otherwise, use the difference as the jump table entry.
+ Val = MCSymbolRefExpr::Create(GetMBBSymbol(MBB->getNumber()), OutContext);
+ const MCExpr *JTI = MCSymbolRefExpr::Create(GetJTISymbol(uid), OutContext);
+ Val = MCBinaryExpr::CreateSub(Val, JTI, OutContext);
}
+
+ OutStreamer.EmitValue(Val, MJTI->getEntrySize(), /*addrspace*/0);
}
OutStreamer.EmitIntValue(Value, 8, 0/*addrspace*/);
}
-
-/// toOctal - Convert the low order bits of X into an octal digit.
-///
-static inline char toOctal(int X) {
- return (X&7)+'0';
-}
-
-/// printStringChar - Print a char, escaped if necessary.
-///
-static void printStringChar(formatted_raw_ostream &O, unsigned char C) {
- if (C == '"') {
- O << "\\\"";
- } else if (C == '\\') {
- O << "\\\\";
- } else if (isprint((unsigned char)C)) {
- O << C;
- } else {
- switch(C) {
- case '\b': O << "\\b"; break;
- case '\f': O << "\\f"; break;
- case '\n': O << "\\n"; break;
- case '\r': O << "\\r"; break;
- case '\t': O << "\\t"; break;
- default:
- O << '\\';
- O << toOctal(C >> 6);
- O << toOctal(C >> 3);
- O << toOctal(C >> 0);
- break;
- }
- }
-}
-
-/// EmitFile - Emit a .file directive.
-void AsmPrinter::EmitFile(unsigned Number, StringRef Name) const {
- O << "\t.file\t" << Number << " \"";
- for (unsigned i = 0, N = Name.size(); i < N; ++i)
- printStringChar(O, Name[i]);
- O << '\"';
-}
-
-
//===----------------------------------------------------------------------===//
// EmitAlignment - Emit an alignment directive to the specified power of
return OutContext.GetOrCreateSymbol(Name.str());
}
+/// GetJTSetSymbol - Return the symbol for the specified jump table .set
+/// FIXME: privatize to AsmPrinter.
+MCSymbol *AsmPrinter::GetJTSetSymbol(unsigned UID, unsigned MBBID) const {
+ SmallString<60> Name;
+ raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix()
+ << getFunctionNumber() << '_' << UID << "_set_" << MBBID;
+ return OutContext.GetOrCreateSymbol(Name.str());
+}
+
/// GetGlobalValueSymbol - Return the MCSymbol for the specified global
/// value.
MCSymbol *AsmPrinter::GetGlobalValueSymbol(const GlobalValue *GV) const {
return;
O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
- << getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ','
- << *GetMBBSymbol(MBB->getNumber())
- << '-' << *GetJTISymbol(uid) << '\n';
-}
-
-void AsmPrinter::printPICJumpTableSetLabel(unsigned uid, unsigned uid2,
- const MachineBasicBlock *MBB) const {
- if (!MAI->getSetDirective())
- return;
-
- O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
- << getFunctionNumber() << '_' << uid << '_' << uid2
- << "_set_" << MBB->getNumber() << ','
- << *GetMBBSymbol(MBB->getNumber())
- << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << uid << '_' << uid2 << '\n';
+ << *GetJTSetSymbol(uid, MBB->getNumber()) << ','
+ << *GetMBBSymbol(MBB->getNumber()) << '-' << *GetJTISymbol(uid) << '\n';
}
void AsmPrinter::printVisibility(MCSymbol *Sym, unsigned Visibility) const {
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