1 //===-- X86TargetAsmInfo.cpp - X86 asm properties ---------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the declarations of the X86TargetAsmInfo properties.
12 //===----------------------------------------------------------------------===//
14 #include "X86TargetAsmInfo.h"
15 #include "X86TargetMachine.h"
16 #include "X86Subtarget.h"
17 #include "llvm/DerivedTypes.h"
18 #include "llvm/InlineAsm.h"
19 #include "llvm/Instructions.h"
20 #include "llvm/Intrinsics.h"
21 #include "llvm/Module.h"
22 #include "llvm/ADT/StringExtras.h"
23 #include "llvm/Support/Dwarf.h"
26 using namespace llvm::dwarf;
28 static const char *const x86_asm_table[] = {
40 X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
41 const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
44 AsmTransCBE = x86_asm_table;
46 AssemblerDialect = Subtarget->getAsmFlavor();
49 bool X86TargetAsmInfo::LowerToBSwap(CallInst *CI) const {
50 // FIXME: this should verify that we are targetting a 486 or better. If not,
51 // we will turn this bswap into something that will be lowered to logical ops
52 // instead of emitting the bswap asm. For now, we don't support 486 or lower
53 // so don't worry about this.
55 // Verify this is a simple bswap.
56 if (CI->getNumOperands() != 2 ||
57 CI->getType() != CI->getOperand(1)->getType() ||
58 !CI->getType()->isInteger())
61 const IntegerType *Ty = dyn_cast<IntegerType>(CI->getType());
62 if (!Ty || Ty->getBitWidth() % 16 != 0)
65 // Okay, we can do this xform, do so now.
66 const Type *Tys[] = { Ty };
67 Module *M = CI->getParent()->getParent()->getParent();
68 Constant *Int = Intrinsic::getDeclaration(M, Intrinsic::bswap, Tys, 1);
70 Value *Op = CI->getOperand(1);
71 Op = CallInst::Create(Int, Op, CI->getName(), CI);
73 CI->replaceAllUsesWith(Op);
74 CI->eraseFromParent();
79 bool X86TargetAsmInfo::ExpandInlineAsm(CallInst *CI) const {
80 InlineAsm *IA = cast<InlineAsm>(CI->getCalledValue());
81 std::vector<InlineAsm::ConstraintInfo> Constraints = IA->ParseConstraints();
83 std::string AsmStr = IA->getAsmString();
85 // TODO: should remove alternatives from the asmstring: "foo {a|b}" -> "foo a"
86 std::vector<std::string> AsmPieces;
87 SplitString(AsmStr, AsmPieces, "\n"); // ; as separator?
89 switch (AsmPieces.size()) {
90 default: return false;
92 AsmStr = AsmPieces[0];
94 SplitString(AsmStr, AsmPieces, " \t"); // Split with whitespace.
97 if (AsmPieces.size() == 2 &&
98 AsmPieces[0] == "bswap" && AsmPieces[1] == "$0") {
99 // No need to check constraints, nothing other than the equivalent of
100 // "=r,0" would be valid here.
101 return LowerToBSwap(CI);
105 if (CI->getType() == Type::Int64Ty && Constraints.size() >= 2 &&
106 Constraints[0].Codes.size() == 1 && Constraints[0].Codes[0] == "A" &&
107 Constraints[1].Codes.size() == 1 && Constraints[1].Codes[0] == "0") {
108 // bswap %eax / bswap %edx / xchgl %eax, %edx -> llvm.bswap.i64
109 std::vector<std::string> Words;
110 SplitString(AsmPieces[0], Words, " \t");
111 if (Words.size() == 2 && Words[0] == "bswap" && Words[1] == "%eax") {
113 SplitString(AsmPieces[1], Words, " \t");
114 if (Words.size() == 2 && Words[0] == "bswap" && Words[1] == "%edx") {
116 SplitString(AsmPieces[2], Words, " \t,");
117 if (Words.size() == 3 && Words[0] == "xchgl" && Words[1] == "%eax" &&
118 Words[2] == "%edx") {
119 return LowerToBSwap(CI);
129 X86DarwinTargetAsmInfo::X86DarwinTargetAsmInfo(const X86TargetMachine &TM):
130 X86TargetAsmInfo(TM) {
131 bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
133 AlignmentIsInBytes = false;
134 TextAlignFillValue = 0x90;
137 Data64bitsDirective = 0; // we can't emit a 64-bit unit
138 ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
139 PrivateGlobalPrefix = "L"; // Marker for constant pool idxs
140 BSSSection = 0; // no BSS section.
141 ZeroFillDirective = "\t.zerofill\t"; // Uses .zerofill
142 // FIXME: It seems, this should be .const_data if relocation model is not
144 ConstantPoolSection = "\t.const\n";
145 JumpTableDataSection = "\t.const\n";
146 CStringSection = "\t.cstring";
147 CStringSection_ = getUnnamedSection("\t.cstring",
148 SectionFlags::Mergeable | SectionFlags::Strings);
149 FourByteConstantSection = "\t.literal4\n";
150 FourByteConstantSection_ = getUnnamedSection("\t.literal4\n",
151 SectionFlags::Mergeable);
152 EightByteConstantSection = "\t.literal8\n";
153 EightByteConstantSection_ = getUnnamedSection("\t.literal8\n",
154 SectionFlags::Mergeable);
155 // FIXME: Why don't always use this section?
157 SixteenByteConstantSection = "\t.literal16\n";
158 SixteenByteConstantSection_ = getUnnamedSection("\t.literal16\n",
159 SectionFlags::Mergeable);
161 ReadOnlySection = "\t.const\n";
162 ReadOnlySection_ = getUnnamedSection("\t.const\n", SectionFlags::None);
163 // FIXME: These should be named sections, really.
165 getUnnamedSection(".section __TEXT,__textcoal_nt,coalesced,pure_instructions",
167 ConstDataCoalSection =
168 getUnnamedSection(".section __DATA,__const_coal,coalesced",
170 ConstDataSection = getUnnamedSection(".const_data", SectionFlags::None);
171 DataCoalSection = getUnnamedSection(".section __DATA,__datacoal_nt,coalesced",
172 SectionFlags::Writeable);
174 LCOMMDirective = "\t.lcomm\t";
175 SwitchToSectionDirective = "\t.section ";
176 StringConstantPrefix = "\1LC";
177 COMMDirectiveTakesAlignment = false;
178 HasDotTypeDotSizeDirective = false;
179 if (TM.getRelocationModel() == Reloc::Static) {
180 StaticCtorsSection = ".constructor";
181 StaticDtorsSection = ".destructor";
183 StaticCtorsSection = ".mod_init_func";
184 StaticDtorsSection = ".mod_term_func";
187 PersonalityPrefix = "";
188 PersonalitySuffix = "+4@GOTPCREL";
190 PersonalityPrefix = "L";
191 PersonalitySuffix = "$non_lazy_ptr";
193 NeedsIndirectEncoding = true;
194 InlineAsmStart = "## InlineAsm Start";
195 InlineAsmEnd = "## InlineAsm End";
196 CommentString = "##";
197 SetDirective = "\t.set";
199 UsedDirective = "\t.no_dead_strip\t";
200 WeakDefDirective = "\t.weak_definition ";
201 WeakRefDirective = "\t.weak_reference ";
202 HiddenDirective = "\t.private_extern ";
203 ProtectedDirective = "\t.globl\t";
205 // In non-PIC modes, emit a special label before jump tables so that the
206 // linker can perform more accurate dead code stripping.
207 if (TM.getRelocationModel() != Reloc::PIC_) {
208 // Emit a local label that is preserved until the linker runs.
209 JumpTableSpecialLabelPrefix = "l";
212 SupportsDebugInformation = true;
214 DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
215 DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
216 DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
217 DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
218 DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
219 DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
220 DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
221 DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
222 DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
223 DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
224 DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
226 // Exceptions handling
227 SupportsExceptionHandling = true;
228 GlobalEHDirective = "\t.globl\t";
229 SupportsWeakOmittedEHFrame = false;
230 AbsoluteEHSectionOffsets = false;
231 DwarfEHFrameSection =
232 ".section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support";
233 DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
237 X86DarwinTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
239 if (Reason == DwarfEncoding::Functions && Global)
240 return (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4);
241 else if (Reason == DwarfEncoding::CodeLabels || !Global)
242 return DW_EH_PE_pcrel;
244 return DW_EH_PE_absptr;
248 X86DarwinTargetAsmInfo::SelectSectionForGlobal(const GlobalValue *GV) const {
249 SectionKind::Kind Kind = SectionKindForGlobal(GV);
250 bool isWeak = GV->isWeakForLinker();
251 bool isNonStatic = (X86TM->getRelocationModel() != Reloc::Static);
254 case SectionKind::Text:
256 return TextCoalSection;
258 return getTextSection_();
259 case SectionKind::Data:
260 case SectionKind::ThreadData:
261 case SectionKind::BSS:
262 case SectionKind::ThreadBSS:
263 if (cast<GlobalVariable>(GV)->isConstant())
264 return (isWeak ? ConstDataCoalSection : ConstDataSection);
266 return (isWeak ? DataCoalSection : getDataSection_());
267 case SectionKind::ROData:
268 return (isWeak ? ConstDataCoalSection :
269 (isNonStatic ? ConstDataSection : getReadOnlySection_()));
270 case SectionKind::RODataMergeStr:
272 ConstDataCoalSection :
273 MergeableStringSection(cast<GlobalVariable>(GV)));
274 case SectionKind::RODataMergeConst:
276 ConstDataCoalSection:
277 MergeableConstSection(cast<GlobalVariable>(GV)));
279 assert(0 && "Unsuported section kind for global");
282 // FIXME: Do we have any extra special weird cases?
286 X86DarwinTargetAsmInfo::MergeableStringSection(const GlobalVariable *GV) const {
287 const TargetData *TD = X86TM->getTargetData();
288 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
289 const Type *Type = cast<ConstantArray>(C)->getType()->getElementType();
291 unsigned Size = TD->getABITypeSize(Type);
293 const TargetData *TD = X86TM->getTargetData();
294 unsigned Align = TD->getPreferredAlignment(GV);
296 return getCStringSection_();
299 return getReadOnlySection_();
303 X86DarwinTargetAsmInfo::MergeableConstSection(const GlobalVariable *GV) const {
304 const TargetData *TD = X86TM->getTargetData();
305 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
307 unsigned Size = TD->getABITypeSize(C->getType());
309 return FourByteConstantSection_;
311 return EightByteConstantSection_;
312 else if (Size == 16 && X86TM->getSubtarget<X86Subtarget>().is64Bit())
313 return SixteenByteConstantSection_;
315 return getReadOnlySection_();
319 X86DarwinTargetAsmInfo::UniqueSectionForGlobal(const GlobalValue* GV,
320 SectionKind::Kind kind) const {
321 assert(0 && "Darwin does not use unique sections");
325 X86ELFTargetAsmInfo::X86ELFTargetAsmInfo(const X86TargetMachine &TM):
326 X86TargetAsmInfo(TM) {
327 bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
329 TextSection_ = getUnnamedSection("\t.text", SectionFlags::Code);
330 DataSection_ = getUnnamedSection("\t.data", SectionFlags::Writeable);
331 BSSSection_ = getUnnamedSection("\t.bss",
332 SectionFlags::Writeable | SectionFlags::BSS);
333 ReadOnlySection_ = getNamedSection("\t.rodata", SectionFlags::None);
334 TLSDataSection_ = getNamedSection("\t.tdata",
335 SectionFlags::Writeable | SectionFlags::TLS);
336 TLSBSSSection_ = getNamedSection("\t.tbss",
337 SectionFlags::Writeable | SectionFlags::TLS | SectionFlags::BSS);
339 ReadOnlySection = ".rodata";
340 FourByteConstantSection = "\t.section\t.rodata.cst4,\"aM\",@progbits,4";
341 EightByteConstantSection = "\t.section\t.rodata.cst8,\"aM\",@progbits,8";
342 SixteenByteConstantSection = "\t.section\t.rodata.cst16,\"aM\",@progbits,16";
343 CStringSection = ".rodata.str";
344 PrivateGlobalPrefix = ".L";
345 WeakRefDirective = "\t.weak\t";
346 SetDirective = "\t.set\t";
349 // Set up DWARF directives
350 HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
353 AbsoluteDebugSectionOffsets = true;
354 SupportsDebugInformation = true;
355 DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
356 DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
357 DwarfLineSection = "\t.section\t.debug_line,\"\",@progbits";
358 DwarfFrameSection = "\t.section\t.debug_frame,\"\",@progbits";
359 DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",@progbits";
360 DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",@progbits";
361 DwarfStrSection = "\t.section\t.debug_str,\"\",@progbits";
362 DwarfLocSection = "\t.section\t.debug_loc,\"\",@progbits";
363 DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
364 DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
365 DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
367 // Exceptions handling
369 SupportsExceptionHandling = true;
370 AbsoluteEHSectionOffsets = false;
371 DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
372 DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";
374 // On Linux we must declare when we can use a non-executable stack.
375 if (X86TM->getSubtarget<X86Subtarget>().isLinux())
376 NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
380 X86ELFTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
382 CodeModel::Model CM = X86TM->getCodeModel();
383 bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
385 if (X86TM->getRelocationModel() == Reloc::PIC_) {
389 // 32 bit targets always encode pointers as 4 bytes
390 Format = DW_EH_PE_sdata4;
392 // 64 bit targets encode pointers in 4 bytes iff:
393 // - code model is small OR
394 // - code model is medium and we're emitting externally visible symbols
395 // or any code symbols
396 if (CM == CodeModel::Small ||
397 (CM == CodeModel::Medium && (Global ||
398 Reason != DwarfEncoding::Data)))
399 Format = DW_EH_PE_sdata4;
401 Format = DW_EH_PE_sdata8;
405 Format |= DW_EH_PE_indirect;
407 return (Format | DW_EH_PE_pcrel);
410 (CM == CodeModel::Small ||
411 (CM == CodeModel::Medium && Reason != DwarfEncoding::Data)))
412 return DW_EH_PE_udata4;
414 return DW_EH_PE_absptr;
419 X86ELFTargetAsmInfo::SelectSectionForGlobal(const GlobalValue *GV) const {
420 SectionKind::Kind Kind = SectionKindForGlobal(GV);
422 if (const Function *F = dyn_cast<Function>(GV)) {
423 switch (F->getLinkage()) {
424 default: assert(0 && "Unknown linkage type!");
425 case Function::InternalLinkage:
426 case Function::DLLExportLinkage:
427 case Function::ExternalLinkage:
428 return getTextSection_();
429 case Function::WeakLinkage:
430 case Function::LinkOnceLinkage:
431 std::string Name = UniqueSectionForGlobal(GV, Kind);
432 unsigned Flags = SectionFlagsForGlobal(GV, Name.c_str());
433 return getNamedSection(Name.c_str(), Flags);
435 } else if (const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) {
436 if (GVar->isWeakForLinker()) {
437 std::string Name = UniqueSectionForGlobal(GVar, Kind);
438 unsigned Flags = SectionFlagsForGlobal(GVar, Name.c_str());
439 return getNamedSection(Name.c_str(), Flags);
442 case SectionKind::Data:
443 return getDataSection_();
444 case SectionKind::BSS:
445 // ELF targets usually have BSS sections
446 return getBSSSection_();
447 case SectionKind::ROData:
448 return getReadOnlySection_();
449 case SectionKind::RODataMergeStr:
450 return MergeableStringSection(GVar);
451 case SectionKind::RODataMergeConst:
452 return MergeableConstSection(GVar);
453 case SectionKind::ThreadData:
454 // ELF targets usually support TLS stuff
455 return getTLSDataSection_();
456 case SectionKind::ThreadBSS:
457 return getTLSBSSSection_();
459 assert(0 && "Unsuported section kind for global");
463 assert(0 && "Unsupported global");
467 X86ELFTargetAsmInfo::MergeableConstSection(const GlobalVariable *GV) const {
468 const TargetData *TD = X86TM->getTargetData();
469 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
470 const Type *Type = C->getType();
472 // FIXME: string here is temporary, until stuff will fully land in.
473 // We cannot use {Four,Eight,Sixteen}ByteConstantSection here, since it's
474 // currently directly used by asmprinter.
475 unsigned Size = TD->getABITypeSize(Type);
476 if (Size == 4 || Size == 8 || Size == 16) {
477 std::string Name = ".rodata.cst" + utostr(Size);
479 return getNamedSection(Name.c_str(),
480 SectionFlags::setEntitySize(SectionFlags::Mergeable,
484 return getReadOnlySection_();
488 X86ELFTargetAsmInfo::MergeableStringSection(const GlobalVariable *GV) const {
489 const TargetData *TD = X86TM->getTargetData();
490 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
491 const ConstantArray *CVA = cast<ConstantArray>(C);
492 const Type *Type = CVA->getType()->getElementType();
494 unsigned Size = TD->getABITypeSize(Type);
496 // We also need alignment here
497 const TargetData *TD = X86TM->getTargetData();
498 unsigned Align = TD->getPreferredAlignment(GV);
502 std::string Name = getCStringSection() + utostr(Size) + '.' + utostr(Align);
503 unsigned Flags = SectionFlags::setEntitySize(SectionFlags::Mergeable |
504 SectionFlags::Strings,
506 return getNamedSection(Name.c_str(), Flags);
509 return getReadOnlySection_();
512 std::string X86ELFTargetAsmInfo::PrintSectionFlags(unsigned flags) const {
513 std::string Flags = ",\"";
515 if (!(flags & SectionFlags::Debug))
517 if (flags & SectionFlags::Code)
519 if (flags & SectionFlags::Writeable)
521 if (flags & SectionFlags::Mergeable)
523 if (flags & SectionFlags::Strings)
525 if (flags & SectionFlags::TLS)
530 // FIXME: There can be exceptions here
531 if (flags & SectionFlags::BSS)
534 Flags += ",@progbits";
536 if (unsigned entitySize = SectionFlags::getEntitySize(flags))
537 Flags += "," + utostr(entitySize);
542 X86COFFTargetAsmInfo::X86COFFTargetAsmInfo(const X86TargetMachine &TM):
543 X86TargetAsmInfo(TM) {
545 LCOMMDirective = "\t.lcomm\t";
546 COMMDirectiveTakesAlignment = false;
547 HasDotTypeDotSizeDirective = false;
548 StaticCtorsSection = "\t.section .ctors,\"aw\"";
549 StaticDtorsSection = "\t.section .dtors,\"aw\"";
550 HiddenDirective = NULL;
551 PrivateGlobalPrefix = "L"; // Prefix for private global symbols
552 WeakRefDirective = "\t.weak\t";
553 SetDirective = "\t.set\t";
555 // Set up DWARF directives
556 HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
557 AbsoluteDebugSectionOffsets = true;
558 AbsoluteEHSectionOffsets = false;
559 SupportsDebugInformation = true;
560 DwarfSectionOffsetDirective = "\t.secrel32\t";
561 DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"dr\"";
562 DwarfInfoSection = "\t.section\t.debug_info,\"dr\"";
563 DwarfLineSection = "\t.section\t.debug_line,\"dr\"";
564 DwarfFrameSection = "\t.section\t.debug_frame,\"dr\"";
565 DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"dr\"";
566 DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"dr\"";
567 DwarfStrSection = "\t.section\t.debug_str,\"dr\"";
568 DwarfLocSection = "\t.section\t.debug_loc,\"dr\"";
569 DwarfARangesSection = "\t.section\t.debug_aranges,\"dr\"";
570 DwarfRangesSection = "\t.section\t.debug_ranges,\"dr\"";
571 DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"dr\"";
575 X86COFFTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
577 CodeModel::Model CM = X86TM->getCodeModel();
578 bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
580 if (X86TM->getRelocationModel() == Reloc::PIC_) {
584 // 32 bit targets always encode pointers as 4 bytes
585 Format = DW_EH_PE_sdata4;
587 // 64 bit targets encode pointers in 4 bytes iff:
588 // - code model is small OR
589 // - code model is medium and we're emitting externally visible symbols
590 // or any code symbols
591 if (CM == CodeModel::Small ||
592 (CM == CodeModel::Medium && (Global ||
593 Reason != DwarfEncoding::Data)))
594 Format = DW_EH_PE_sdata4;
596 Format = DW_EH_PE_sdata8;
600 Format |= DW_EH_PE_indirect;
602 return (Format | DW_EH_PE_pcrel);
605 (CM == CodeModel::Small ||
606 (CM == CodeModel::Medium && Reason != DwarfEncoding::Data)))
607 return DW_EH_PE_udata4;
609 return DW_EH_PE_absptr;
614 X86COFFTargetAsmInfo::UniqueSectionForGlobal(const GlobalValue* GV,
615 SectionKind::Kind kind) const {
617 case SectionKind::Text:
618 return ".text$linkonce" + GV->getName();
619 case SectionKind::Data:
620 case SectionKind::BSS:
621 case SectionKind::ThreadData:
622 case SectionKind::ThreadBSS:
623 return ".data$linkonce" + GV->getName();
624 case SectionKind::ROData:
625 case SectionKind::RODataMergeConst:
626 case SectionKind::RODataMergeStr:
627 return ".rdata$linkonce" + GV->getName();
629 assert(0 && "Unknown section kind");
633 std::string X86COFFTargetAsmInfo::PrintSectionFlags(unsigned flags) const {
634 std::string Flags = ",\"";
636 if (flags & SectionFlags::Code)
638 if (flags & SectionFlags::Writeable)
646 X86WinTargetAsmInfo::X86WinTargetAsmInfo(const X86TargetMachine &TM):
647 X86TargetAsmInfo(TM) {
651 PrivateGlobalPrefix = "$";
652 AlignDirective = "\talign\t";
653 ZeroDirective = "\tdb\t";
654 ZeroDirectiveSuffix = " dup(0)";
655 AsciiDirective = "\tdb\t";
657 Data8bitsDirective = "\tdb\t";
658 Data16bitsDirective = "\tdw\t";
659 Data32bitsDirective = "\tdd\t";
660 Data64bitsDirective = "\tdq\t";
661 HasDotTypeDotSizeDirective = false;
663 TextSection = "_text";
664 DataSection = "_data";
665 JumpTableDataSection = NULL;
666 SwitchToSectionDirective = "";
667 TextSectionStartSuffix = "\tsegment 'CODE'";
668 DataSectionStartSuffix = "\tsegment 'DATA'";
669 SectionEndDirectiveSuffix = "\tends\n";