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 ConstantPoolSection = "\t.const\n";
143 JumpTableDataSection = "\t.const\n";
144 CStringSection = "\t.cstring";
145 CStringSection_ = getUnnamedSection("\t.cstring",
146 SectionFlags::Mergeable | SectionFlags::Strings);
147 FourByteConstantSection = "\t.literal4\n";
148 FourByteConstantSection_ = getUnnamedSection("\t.literal4\n",
149 SectionFlags::Mergeable);
150 EightByteConstantSection_ = getUnnamedSection("\t.literal8\n",
151 SectionFlags::Mergeable);
152 // FIXME: Why don't always use this section?
154 SixteenByteConstantSection = "\t.literal16\n";
155 SixteenByteConstantSection_ = getUnnamedSection("\t.literal16\n",
156 SectionFlags::Mergeable);
158 ReadOnlySection = "\t.const\n";
159 ReadOnlySection_ = getUnnamedSection("\t.const\n", SectionFlags::None);
160 // FIXME: These should be named sections, really.
162 getUnnamedSection(".section __TEXT,__textcoal_nt,coalesced,pure_instructions",
164 ConstDataCoalSection =
165 getUnnamedSection(".section __DATA,__const_coal,coalesced",
167 ConstDataSection = getUnnamedSection(".const_data", SectionFlags::None);
168 DataCoalSection = getUnnamedSection(".section __DATA,__datacoal_nt,coalesced",
169 SectionFlags::Writeable);
171 LCOMMDirective = "\t.lcomm\t";
172 SwitchToSectionDirective = "\t.section ";
173 StringConstantPrefix = "\1LC";
174 COMMDirectiveTakesAlignment = false;
175 HasDotTypeDotSizeDirective = false;
176 if (TM.getRelocationModel() == Reloc::Static) {
177 StaticCtorsSection = ".constructor";
178 StaticDtorsSection = ".destructor";
180 StaticCtorsSection = ".mod_init_func";
181 StaticDtorsSection = ".mod_term_func";
184 PersonalityPrefix = "";
185 PersonalitySuffix = "+4@GOTPCREL";
187 PersonalityPrefix = "L";
188 PersonalitySuffix = "$non_lazy_ptr";
190 NeedsIndirectEncoding = true;
191 InlineAsmStart = "## InlineAsm Start";
192 InlineAsmEnd = "## InlineAsm End";
193 CommentString = "##";
194 SetDirective = "\t.set";
196 UsedDirective = "\t.no_dead_strip\t";
197 WeakDefDirective = "\t.weak_definition ";
198 WeakRefDirective = "\t.weak_reference ";
199 HiddenDirective = "\t.private_extern ";
200 ProtectedDirective = "\t.globl\t";
202 // In non-PIC modes, emit a special label before jump tables so that the
203 // linker can perform more accurate dead code stripping.
204 if (TM.getRelocationModel() != Reloc::PIC_) {
205 // Emit a local label that is preserved until the linker runs.
206 JumpTableSpecialLabelPrefix = "l";
209 SupportsDebugInformation = true;
211 DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
212 DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
213 DwarfLineSection = ".section __DWARF,__debug_line,regular,debug";
214 DwarfFrameSection = ".section __DWARF,__debug_frame,regular,debug";
215 DwarfPubNamesSection = ".section __DWARF,__debug_pubnames,regular,debug";
216 DwarfPubTypesSection = ".section __DWARF,__debug_pubtypes,regular,debug";
217 DwarfStrSection = ".section __DWARF,__debug_str,regular,debug";
218 DwarfLocSection = ".section __DWARF,__debug_loc,regular,debug";
219 DwarfARangesSection = ".section __DWARF,__debug_aranges,regular,debug";
220 DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
221 DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
223 // Exceptions handling
224 SupportsExceptionHandling = true;
225 GlobalEHDirective = "\t.globl\t";
226 SupportsWeakOmittedEHFrame = false;
227 AbsoluteEHSectionOffsets = false;
228 DwarfEHFrameSection =
229 ".section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support";
230 DwarfExceptionSection = ".section __DATA,__gcc_except_tab";
234 X86DarwinTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
236 if (Reason == DwarfEncoding::Functions && Global)
237 return (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4);
238 else if (Reason == DwarfEncoding::CodeLabels || !Global)
239 return DW_EH_PE_pcrel;
241 return DW_EH_PE_absptr;
245 X86DarwinTargetAsmInfo::SelectSectionForGlobal(const GlobalValue *GV) const {
246 SectionKind::Kind Kind = SectionKindForGlobal(GV);
247 bool isWeak = GV->isWeakForLinker();
248 bool isNonStatic = (X86TM->getRelocationModel() != Reloc::Static);
251 case SectionKind::Text:
253 return TextCoalSection;
255 return getTextSection_();
256 case SectionKind::Data:
257 case SectionKind::ThreadData:
258 case SectionKind::BSS:
259 case SectionKind::ThreadBSS:
260 if (cast<GlobalVariable>(GV)->isConstant())
261 return (isWeak ? ConstDataCoalSection : ConstDataSection);
263 return (isWeak ? DataCoalSection : getDataSection_());
264 case SectionKind::ROData:
265 return (isWeak ? ConstDataCoalSection :
266 (isNonStatic ? ConstDataSection : getReadOnlySection_()));
267 case SectionKind::RODataMergeStr:
269 ConstDataCoalSection :
270 MergeableStringSection(cast<GlobalVariable>(GV)));
271 case SectionKind::RODataMergeConst:
273 ConstDataCoalSection:
274 MergeableConstSection(cast<GlobalVariable>(GV)));
276 assert(0 && "Unsuported section kind for global");
279 // FIXME: Do we have any extra special weird cases?
283 X86DarwinTargetAsmInfo::MergeableStringSection(const GlobalVariable *GV) const {
284 const TargetData *TD = X86TM->getTargetData();
285 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
286 const Type *Type = cast<ConstantArray>(C)->getType()->getElementType();
288 unsigned Size = TD->getABITypeSize(Type);
290 const TargetData *TD = X86TM->getTargetData();
291 unsigned Align = TD->getPreferredAlignment(GV);
293 return getCStringSection_();
296 return getReadOnlySection_();
300 X86DarwinTargetAsmInfo::MergeableConstSection(const GlobalVariable *GV) const {
301 const TargetData *TD = X86TM->getTargetData();
302 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
304 unsigned Size = TD->getABITypeSize(C->getType());
306 return FourByteConstantSection_;
308 return EightByteConstantSection_;
309 else if (Size == 16 && X86TM->getSubtarget<X86Subtarget>().is64Bit())
310 return SixteenByteConstantSection_;
312 return getReadOnlySection_();
316 X86DarwinTargetAsmInfo::UniqueSectionForGlobal(const GlobalValue* GV,
317 SectionKind::Kind kind) const {
318 assert(0 && "Darwin does not use unique sections");
322 X86ELFTargetAsmInfo::X86ELFTargetAsmInfo(const X86TargetMachine &TM):
323 X86TargetAsmInfo(TM) {
324 bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
326 TextSection_ = getUnnamedSection("\t.text", SectionFlags::Code);
327 DataSection_ = getUnnamedSection("\t.data", SectionFlags::Writeable);
328 BSSSection_ = getUnnamedSection("\t.bss",
329 SectionFlags::Writeable | SectionFlags::BSS);
330 ReadOnlySection_ = getNamedSection("\t.rodata", SectionFlags::None);
331 TLSDataSection_ = getNamedSection("\t.tdata",
332 SectionFlags::Writeable | SectionFlags::TLS);
333 TLSBSSSection_ = getNamedSection("\t.tbss",
334 SectionFlags::Writeable | SectionFlags::TLS | SectionFlags::BSS);
336 ReadOnlySection = ".rodata";
337 FourByteConstantSection = "\t.section\t.rodata.cst4,\"aM\",@progbits,4";
338 EightByteConstantSection = "\t.section\t.rodata.cst8,\"aM\",@progbits,8";
339 SixteenByteConstantSection = "\t.section\t.rodata.cst16,\"aM\",@progbits,16";
340 CStringSection = ".rodata.str";
341 PrivateGlobalPrefix = ".L";
342 WeakRefDirective = "\t.weak\t";
343 SetDirective = "\t.set\t";
346 // Set up DWARF directives
347 HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
350 AbsoluteDebugSectionOffsets = true;
351 SupportsDebugInformation = true;
352 DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
353 DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
354 DwarfLineSection = "\t.section\t.debug_line,\"\",@progbits";
355 DwarfFrameSection = "\t.section\t.debug_frame,\"\",@progbits";
356 DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",@progbits";
357 DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",@progbits";
358 DwarfStrSection = "\t.section\t.debug_str,\"\",@progbits";
359 DwarfLocSection = "\t.section\t.debug_loc,\"\",@progbits";
360 DwarfARangesSection = "\t.section\t.debug_aranges,\"\",@progbits";
361 DwarfRangesSection = "\t.section\t.debug_ranges,\"\",@progbits";
362 DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",@progbits";
364 // Exceptions handling
366 SupportsExceptionHandling = true;
367 AbsoluteEHSectionOffsets = false;
368 DwarfEHFrameSection = "\t.section\t.eh_frame,\"aw\",@progbits";
369 DwarfExceptionSection = "\t.section\t.gcc_except_table,\"a\",@progbits";
371 // On Linux we must declare when we can use a non-executable stack.
372 if (X86TM->getSubtarget<X86Subtarget>().isLinux())
373 NonexecutableStackDirective = "\t.section\t.note.GNU-stack,\"\",@progbits";
377 X86ELFTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
379 CodeModel::Model CM = X86TM->getCodeModel();
380 bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
382 if (X86TM->getRelocationModel() == Reloc::PIC_) {
386 // 32 bit targets always encode pointers as 4 bytes
387 Format = DW_EH_PE_sdata4;
389 // 64 bit targets encode pointers in 4 bytes iff:
390 // - code model is small OR
391 // - code model is medium and we're emitting externally visible symbols
392 // or any code symbols
393 if (CM == CodeModel::Small ||
394 (CM == CodeModel::Medium && (Global ||
395 Reason != DwarfEncoding::Data)))
396 Format = DW_EH_PE_sdata4;
398 Format = DW_EH_PE_sdata8;
402 Format |= DW_EH_PE_indirect;
404 return (Format | DW_EH_PE_pcrel);
407 (CM == CodeModel::Small ||
408 (CM == CodeModel::Medium && Reason != DwarfEncoding::Data)))
409 return DW_EH_PE_udata4;
411 return DW_EH_PE_absptr;
416 X86ELFTargetAsmInfo::SelectSectionForGlobal(const GlobalValue *GV) const {
417 SectionKind::Kind Kind = SectionKindForGlobal(GV);
419 if (const Function *F = dyn_cast<Function>(GV)) {
420 switch (F->getLinkage()) {
421 default: assert(0 && "Unknown linkage type!");
422 case Function::InternalLinkage:
423 case Function::DLLExportLinkage:
424 case Function::ExternalLinkage:
425 return getTextSection_();
426 case Function::WeakLinkage:
427 case Function::LinkOnceLinkage:
428 std::string Name = UniqueSectionForGlobal(GV, Kind);
429 unsigned Flags = SectionFlagsForGlobal(GV, Name.c_str());
430 return getNamedSection(Name.c_str(), Flags);
432 } else if (const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) {
433 if (GVar->isWeakForLinker()) {
434 std::string Name = UniqueSectionForGlobal(GVar, Kind);
435 unsigned Flags = SectionFlagsForGlobal(GVar, Name.c_str());
436 return getNamedSection(Name.c_str(), Flags);
439 case SectionKind::Data:
440 return getDataSection_();
441 case SectionKind::BSS:
442 // ELF targets usually have BSS sections
443 return getBSSSection_();
444 case SectionKind::ROData:
445 return getReadOnlySection_();
446 case SectionKind::RODataMergeStr:
447 return MergeableStringSection(GVar);
448 case SectionKind::RODataMergeConst:
449 return MergeableConstSection(GVar);
450 case SectionKind::ThreadData:
451 // ELF targets usually support TLS stuff
452 return getTLSDataSection_();
453 case SectionKind::ThreadBSS:
454 return getTLSBSSSection_();
456 assert(0 && "Unsuported section kind for global");
460 assert(0 && "Unsupported global");
464 X86ELFTargetAsmInfo::MergeableConstSection(const GlobalVariable *GV) const {
465 const TargetData *TD = X86TM->getTargetData();
466 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
467 const Type *Type = C->getType();
469 // FIXME: string here is temporary, until stuff will fully land in.
470 // We cannot use {Four,Eight,Sixteen}ByteConstantSection here, since it's
471 // currently directly used by asmprinter.
472 unsigned Size = TD->getABITypeSize(Type);
473 if (Size == 4 || Size == 8 || Size == 16) {
474 std::string Name = ".rodata.cst" + utostr(Size);
476 return getNamedSection(Name.c_str(),
477 SectionFlags::setEntitySize(SectionFlags::Mergeable,
481 return getReadOnlySection_();
485 X86ELFTargetAsmInfo::MergeableStringSection(const GlobalVariable *GV) const {
486 const TargetData *TD = X86TM->getTargetData();
487 Constant *C = cast<GlobalVariable>(GV)->getInitializer();
488 const ConstantArray *CVA = cast<ConstantArray>(C);
489 const Type *Type = CVA->getType()->getElementType();
491 unsigned Size = TD->getABITypeSize(Type);
493 // We also need alignment here
494 const TargetData *TD = X86TM->getTargetData();
495 unsigned Align = TD->getPreferredAlignment(GV);
499 std::string Name = getCStringSection() + utostr(Size) + '.' + utostr(Align);
500 unsigned Flags = SectionFlags::setEntitySize(SectionFlags::Mergeable |
501 SectionFlags::Strings,
503 return getNamedSection(Name.c_str(), Flags);
506 return getReadOnlySection_();
509 std::string X86ELFTargetAsmInfo::PrintSectionFlags(unsigned flags) const {
510 std::string Flags = ",\"";
512 if (!(flags & SectionFlags::Debug))
514 if (flags & SectionFlags::Code)
516 if (flags & SectionFlags::Writeable)
518 if (flags & SectionFlags::Mergeable)
520 if (flags & SectionFlags::Strings)
522 if (flags & SectionFlags::TLS)
527 // FIXME: There can be exceptions here
528 if (flags & SectionFlags::BSS)
531 Flags += ",@progbits";
533 if (unsigned entitySize = SectionFlags::getEntitySize(flags))
534 Flags += "," + utostr(entitySize);
539 X86COFFTargetAsmInfo::X86COFFTargetAsmInfo(const X86TargetMachine &TM):
540 X86TargetAsmInfo(TM) {
542 LCOMMDirective = "\t.lcomm\t";
543 COMMDirectiveTakesAlignment = false;
544 HasDotTypeDotSizeDirective = false;
545 StaticCtorsSection = "\t.section .ctors,\"aw\"";
546 StaticDtorsSection = "\t.section .dtors,\"aw\"";
547 HiddenDirective = NULL;
548 PrivateGlobalPrefix = "L"; // Prefix for private global symbols
549 WeakRefDirective = "\t.weak\t";
550 SetDirective = "\t.set\t";
552 // Set up DWARF directives
553 HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
554 AbsoluteDebugSectionOffsets = true;
555 AbsoluteEHSectionOffsets = false;
556 SupportsDebugInformation = true;
557 DwarfSectionOffsetDirective = "\t.secrel32\t";
558 DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"dr\"";
559 DwarfInfoSection = "\t.section\t.debug_info,\"dr\"";
560 DwarfLineSection = "\t.section\t.debug_line,\"dr\"";
561 DwarfFrameSection = "\t.section\t.debug_frame,\"dr\"";
562 DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"dr\"";
563 DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"dr\"";
564 DwarfStrSection = "\t.section\t.debug_str,\"dr\"";
565 DwarfLocSection = "\t.section\t.debug_loc,\"dr\"";
566 DwarfARangesSection = "\t.section\t.debug_aranges,\"dr\"";
567 DwarfRangesSection = "\t.section\t.debug_ranges,\"dr\"";
568 DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"dr\"";
572 X86COFFTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
574 CodeModel::Model CM = X86TM->getCodeModel();
575 bool is64Bit = X86TM->getSubtarget<X86Subtarget>().is64Bit();
577 if (X86TM->getRelocationModel() == Reloc::PIC_) {
581 // 32 bit targets always encode pointers as 4 bytes
582 Format = DW_EH_PE_sdata4;
584 // 64 bit targets encode pointers in 4 bytes iff:
585 // - code model is small OR
586 // - code model is medium and we're emitting externally visible symbols
587 // or any code symbols
588 if (CM == CodeModel::Small ||
589 (CM == CodeModel::Medium && (Global ||
590 Reason != DwarfEncoding::Data)))
591 Format = DW_EH_PE_sdata4;
593 Format = DW_EH_PE_sdata8;
597 Format |= DW_EH_PE_indirect;
599 return (Format | DW_EH_PE_pcrel);
602 (CM == CodeModel::Small ||
603 (CM == CodeModel::Medium && Reason != DwarfEncoding::Data)))
604 return DW_EH_PE_udata4;
606 return DW_EH_PE_absptr;
611 X86COFFTargetAsmInfo::UniqueSectionForGlobal(const GlobalValue* GV,
612 SectionKind::Kind kind) const {
614 case SectionKind::Text:
615 return ".text$linkonce" + GV->getName();
616 case SectionKind::Data:
617 case SectionKind::BSS:
618 case SectionKind::ThreadData:
619 case SectionKind::ThreadBSS:
620 return ".data$linkonce" + GV->getName();
621 case SectionKind::ROData:
622 case SectionKind::RODataMergeConst:
623 case SectionKind::RODataMergeStr:
624 return ".rdata$linkonce" + GV->getName();
626 assert(0 && "Unknown section kind");
630 std::string X86COFFTargetAsmInfo::PrintSectionFlags(unsigned flags) const {
631 std::string Flags = ",\"";
633 if (flags & SectionFlags::Code)
635 if (flags & SectionFlags::Writeable)
643 X86WinTargetAsmInfo::X86WinTargetAsmInfo(const X86TargetMachine &TM):
644 X86TargetAsmInfo(TM) {
648 PrivateGlobalPrefix = "$";
649 AlignDirective = "\talign\t";
650 ZeroDirective = "\tdb\t";
651 ZeroDirectiveSuffix = " dup(0)";
652 AsciiDirective = "\tdb\t";
654 Data8bitsDirective = "\tdb\t";
655 Data16bitsDirective = "\tdw\t";
656 Data32bitsDirective = "\tdd\t";
657 Data64bitsDirective = "\tdq\t";
658 HasDotTypeDotSizeDirective = false;
660 TextSection = "_text";
661 DataSection = "_data";
662 JumpTableDataSection = NULL;
663 SwitchToSectionDirective = "";
664 TextSectionStartSuffix = "\tsegment 'CODE'";
665 DataSectionStartSuffix = "\tsegment 'DATA'";
666 SectionEndDirectiveSuffix = "\tends\n";