1 //===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===//
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 library implements the functionality defined in llvm/Assembly/Writer.h
12 // Note that these routines must be extremely tolerant of various errors in the
13 // LLVM code, because it can be used for debugging transformations.
15 //===----------------------------------------------------------------------===//
17 #include "llvm/Assembly/Writer.h"
18 #include "llvm/ADT/DenseMap.h"
19 #include "llvm/ADT/STLExtras.h"
20 #include "llvm/ADT/SmallString.h"
21 #include "llvm/ADT/StringExtras.h"
22 #include "llvm/Assembly/AssemblyAnnotationWriter.h"
23 #include "llvm/Assembly/PrintModulePass.h"
24 #include "llvm/DebugInfo.h"
25 #include "llvm/IR/CallingConv.h"
26 #include "llvm/IR/Constants.h"
27 #include "llvm/IR/DerivedTypes.h"
28 #include "llvm/IR/InlineAsm.h"
29 #include "llvm/IR/IntrinsicInst.h"
30 #include "llvm/IR/LLVMContext.h"
31 #include "llvm/IR/Module.h"
32 #include "llvm/IR/Operator.h"
33 #include "llvm/IR/TypeFinder.h"
34 #include "llvm/IR/ValueSymbolTable.h"
35 #include "llvm/Support/CFG.h"
36 #include "llvm/Support/Debug.h"
37 #include "llvm/Support/Dwarf.h"
38 #include "llvm/Support/ErrorHandling.h"
39 #include "llvm/Support/FormattedStream.h"
40 #include "llvm/Support/MathExtras.h"
45 // Make virtual table appear in this compilation unit.
46 AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
48 //===----------------------------------------------------------------------===//
50 //===----------------------------------------------------------------------===//
52 static const Module *getModuleFromVal(const Value *V) {
53 if (const Argument *MA = dyn_cast<Argument>(V))
54 return MA->getParent() ? MA->getParent()->getParent() : 0;
56 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
57 return BB->getParent() ? BB->getParent()->getParent() : 0;
59 if (const Instruction *I = dyn_cast<Instruction>(V)) {
60 const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
61 return M ? M->getParent() : 0;
64 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
65 return GV->getParent();
69 static void PrintCallingConv(unsigned cc, raw_ostream &Out) {
71 default: Out << "cc" << cc; break;
72 case CallingConv::Fast: Out << "fastcc"; break;
73 case CallingConv::Cold: Out << "coldcc"; break;
74 case CallingConv::X86_StdCall: Out << "x86_stdcallcc"; break;
75 case CallingConv::X86_FastCall: Out << "x86_fastcallcc"; break;
76 case CallingConv::X86_ThisCall: Out << "x86_thiscallcc"; break;
77 case CallingConv::Intel_OCL_BI: Out << "intel_ocl_bicc"; break;
78 case CallingConv::ARM_APCS: Out << "arm_apcscc"; break;
79 case CallingConv::ARM_AAPCS: Out << "arm_aapcscc"; break;
80 case CallingConv::ARM_AAPCS_VFP: Out << "arm_aapcs_vfpcc"; break;
81 case CallingConv::MSP430_INTR: Out << "msp430_intrcc"; break;
82 case CallingConv::PTX_Kernel: Out << "ptx_kernel"; break;
83 case CallingConv::PTX_Device: Out << "ptx_device"; break;
84 case CallingConv::X86_64_SysV: Out << "x86_64_sysvcc"; break;
85 case CallingConv::X86_64_Win64: Out << "x86_64_win64cc"; break;
89 // PrintEscapedString - Print each character of the specified string, escaping
90 // it if it is not printable or if it is an escape char.
91 static void PrintEscapedString(StringRef Name, raw_ostream &Out) {
92 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
93 unsigned char C = Name[i];
94 if (isprint(C) && C != '\\' && C != '"')
97 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
108 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
109 /// prefixed with % (if the string only contains simple characters) or is
110 /// surrounded with ""'s (if it has special chars in it). Print it out.
111 static void PrintLLVMName(raw_ostream &OS, StringRef Name, PrefixType Prefix) {
112 assert(!Name.empty() && "Cannot get empty name!");
114 case NoPrefix: break;
115 case GlobalPrefix: OS << '@'; break;
116 case LabelPrefix: break;
117 case LocalPrefix: OS << '%'; break;
120 // Scan the name to see if it needs quotes first.
121 bool NeedsQuotes = isdigit(static_cast<unsigned char>(Name[0]));
123 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
124 // By making this unsigned, the value passed in to isalnum will always be
125 // in the range 0-255. This is important when building with MSVC because
126 // its implementation will assert. This situation can arise when dealing
127 // with UTF-8 multibyte characters.
128 unsigned char C = Name[i];
129 if (!isalnum(static_cast<unsigned char>(C)) && C != '-' && C != '.' &&
137 // If we didn't need any quotes, just write out the name in one blast.
143 // Okay, we need quotes. Output the quotes and escape any scary characters as
146 PrintEscapedString(Name, OS);
150 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
151 /// prefixed with % (if the string only contains simple characters) or is
152 /// surrounded with ""'s (if it has special chars in it). Print it out.
153 static void PrintLLVMName(raw_ostream &OS, const Value *V) {
154 PrintLLVMName(OS, V->getName(),
155 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
158 //===----------------------------------------------------------------------===//
159 // TypePrinting Class: Type printing machinery
160 //===----------------------------------------------------------------------===//
162 /// TypePrinting - Type printing machinery.
165 TypePrinting(const TypePrinting &) LLVM_DELETED_FUNCTION;
166 void operator=(const TypePrinting&) LLVM_DELETED_FUNCTION;
169 /// NamedTypes - The named types that are used by the current module.
170 TypeFinder NamedTypes;
172 /// NumberedTypes - The numbered types, along with their value.
173 DenseMap<StructType*, unsigned> NumberedTypes;
179 void incorporateTypes(const Module &M);
181 void print(Type *Ty, raw_ostream &OS);
183 void printStructBody(StructType *Ty, raw_ostream &OS);
185 } // end anonymous namespace.
188 void TypePrinting::incorporateTypes(const Module &M) {
189 NamedTypes.run(M, false);
191 // The list of struct types we got back includes all the struct types, split
192 // the unnamed ones out to a numbering and remove the anonymous structs.
193 unsigned NextNumber = 0;
195 std::vector<StructType*>::iterator NextToUse = NamedTypes.begin(), I, E;
196 for (I = NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) {
197 StructType *STy = *I;
199 // Ignore anonymous types.
200 if (STy->isLiteral())
203 if (STy->getName().empty())
204 NumberedTypes[STy] = NextNumber++;
209 NamedTypes.erase(NextToUse, NamedTypes.end());
213 /// CalcTypeName - Write the specified type to the specified raw_ostream, making
214 /// use of type names or up references to shorten the type name where possible.
215 void TypePrinting::print(Type *Ty, raw_ostream &OS) {
216 switch (Ty->getTypeID()) {
217 case Type::VoidTyID: OS << "void"; break;
218 case Type::HalfTyID: OS << "half"; break;
219 case Type::FloatTyID: OS << "float"; break;
220 case Type::DoubleTyID: OS << "double"; break;
221 case Type::X86_FP80TyID: OS << "x86_fp80"; break;
222 case Type::FP128TyID: OS << "fp128"; break;
223 case Type::PPC_FP128TyID: OS << "ppc_fp128"; break;
224 case Type::LabelTyID: OS << "label"; break;
225 case Type::MetadataTyID: OS << "metadata"; break;
226 case Type::X86_MMXTyID: OS << "x86_mmx"; break;
227 case Type::IntegerTyID:
228 OS << 'i' << cast<IntegerType>(Ty)->getBitWidth();
231 case Type::FunctionTyID: {
232 FunctionType *FTy = cast<FunctionType>(Ty);
233 print(FTy->getReturnType(), OS);
235 for (FunctionType::param_iterator I = FTy->param_begin(),
236 E = FTy->param_end(); I != E; ++I) {
237 if (I != FTy->param_begin())
241 if (FTy->isVarArg()) {
242 if (FTy->getNumParams()) OS << ", ";
248 case Type::StructTyID: {
249 StructType *STy = cast<StructType>(Ty);
251 if (STy->isLiteral())
252 return printStructBody(STy, OS);
254 if (!STy->getName().empty())
255 return PrintLLVMName(OS, STy->getName(), LocalPrefix);
257 DenseMap<StructType*, unsigned>::iterator I = NumberedTypes.find(STy);
258 if (I != NumberedTypes.end())
259 OS << '%' << I->second;
260 else // Not enumerated, print the hex address.
261 OS << "%\"type " << STy << '\"';
264 case Type::PointerTyID: {
265 PointerType *PTy = cast<PointerType>(Ty);
266 print(PTy->getElementType(), OS);
267 if (unsigned AddressSpace = PTy->getAddressSpace())
268 OS << " addrspace(" << AddressSpace << ')';
272 case Type::ArrayTyID: {
273 ArrayType *ATy = cast<ArrayType>(Ty);
274 OS << '[' << ATy->getNumElements() << " x ";
275 print(ATy->getElementType(), OS);
279 case Type::VectorTyID: {
280 VectorType *PTy = cast<VectorType>(Ty);
281 OS << "<" << PTy->getNumElements() << " x ";
282 print(PTy->getElementType(), OS);
287 OS << "<unrecognized-type>";
292 void TypePrinting::printStructBody(StructType *STy, raw_ostream &OS) {
293 if (STy->isOpaque()) {
301 if (STy->getNumElements() == 0) {
304 StructType::element_iterator I = STy->element_begin();
307 for (StructType::element_iterator E = STy->element_end(); I != E; ++I) {
320 //===----------------------------------------------------------------------===//
321 // SlotTracker Class: Enumerate slot numbers for unnamed values
322 //===----------------------------------------------------------------------===//
326 /// This class provides computation of slot numbers for LLVM Assembly writing.
330 /// ValueMap - A mapping of Values to slot numbers.
331 typedef DenseMap<const Value*, unsigned> ValueMap;
334 /// TheModule - The module for which we are holding slot numbers.
335 const Module* TheModule;
337 /// TheFunction - The function for which we are holding slot numbers.
338 const Function* TheFunction;
339 bool FunctionProcessed;
341 /// mMap - The slot map for the module level data.
345 /// fMap - The slot map for the function level data.
349 /// mdnMap - Map for MDNodes.
350 DenseMap<const MDNode*, unsigned> mdnMap;
353 /// asMap - The slot map for attribute sets.
354 DenseMap<AttributeSet, unsigned> asMap;
357 /// Construct from a module
358 explicit SlotTracker(const Module *M);
359 /// Construct from a function, starting out in incorp state.
360 explicit SlotTracker(const Function *F);
362 /// Return the slot number of the specified value in it's type
363 /// plane. If something is not in the SlotTracker, return -1.
364 int getLocalSlot(const Value *V);
365 int getGlobalSlot(const GlobalValue *V);
366 int getMetadataSlot(const MDNode *N);
367 int getAttributeGroupSlot(AttributeSet AS);
369 /// If you'd like to deal with a function instead of just a module, use
370 /// this method to get its data into the SlotTracker.
371 void incorporateFunction(const Function *F) {
373 FunctionProcessed = false;
376 /// After calling incorporateFunction, use this method to remove the
377 /// most recently incorporated function from the SlotTracker. This
378 /// will reset the state of the machine back to just the module contents.
379 void purgeFunction();
381 /// MDNode map iterators.
382 typedef DenseMap<const MDNode*, unsigned>::iterator mdn_iterator;
383 mdn_iterator mdn_begin() { return mdnMap.begin(); }
384 mdn_iterator mdn_end() { return mdnMap.end(); }
385 unsigned mdn_size() const { return mdnMap.size(); }
386 bool mdn_empty() const { return mdnMap.empty(); }
388 /// AttributeSet map iterators.
389 typedef DenseMap<AttributeSet, unsigned>::iterator as_iterator;
390 as_iterator as_begin() { return asMap.begin(); }
391 as_iterator as_end() { return asMap.end(); }
392 unsigned as_size() const { return asMap.size(); }
393 bool as_empty() const { return asMap.empty(); }
395 /// This function does the actual initialization.
396 inline void initialize();
398 // Implementation Details
400 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
401 void CreateModuleSlot(const GlobalValue *V);
403 /// CreateMetadataSlot - Insert the specified MDNode* into the slot table.
404 void CreateMetadataSlot(const MDNode *N);
406 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
407 void CreateFunctionSlot(const Value *V);
409 /// \brief Insert the specified AttributeSet into the slot table.
410 void CreateAttributeSetSlot(AttributeSet AS);
412 /// Add all of the module level global variables (and their initializers)
413 /// and function declarations, but not the contents of those functions.
414 void processModule();
416 /// Add all of the functions arguments, basic blocks, and instructions.
417 void processFunction();
419 SlotTracker(const SlotTracker &) LLVM_DELETED_FUNCTION;
420 void operator=(const SlotTracker &) LLVM_DELETED_FUNCTION;
423 } // end anonymous namespace
426 static SlotTracker *createSlotTracker(const Value *V) {
427 if (const Argument *FA = dyn_cast<Argument>(V))
428 return new SlotTracker(FA->getParent());
430 if (const Instruction *I = dyn_cast<Instruction>(V))
432 return new SlotTracker(I->getParent()->getParent());
434 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
435 return new SlotTracker(BB->getParent());
437 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
438 return new SlotTracker(GV->getParent());
440 if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
441 return new SlotTracker(GA->getParent());
443 if (const Function *Func = dyn_cast<Function>(V))
444 return new SlotTracker(Func);
446 if (const MDNode *MD = dyn_cast<MDNode>(V)) {
447 if (!MD->isFunctionLocal())
448 return new SlotTracker(MD->getFunction());
450 return new SlotTracker((Function *)0);
457 #define ST_DEBUG(X) dbgs() << X
462 // Module level constructor. Causes the contents of the Module (sans functions)
463 // to be added to the slot table.
464 SlotTracker::SlotTracker(const Module *M)
465 : TheModule(M), TheFunction(0), FunctionProcessed(false),
466 mNext(0), fNext(0), mdnNext(0), asNext(0) {
469 // Function level constructor. Causes the contents of the Module and the one
470 // function provided to be added to the slot table.
471 SlotTracker::SlotTracker(const Function *F)
472 : TheModule(F ? F->getParent() : 0), TheFunction(F), FunctionProcessed(false),
473 mNext(0), fNext(0), mdnNext(0), asNext(0) {
476 inline void SlotTracker::initialize() {
479 TheModule = 0; ///< Prevent re-processing next time we're called.
482 if (TheFunction && !FunctionProcessed)
486 // Iterate through all the global variables, functions, and global
487 // variable initializers and create slots for them.
488 void SlotTracker::processModule() {
489 ST_DEBUG("begin processModule!\n");
491 // Add all of the unnamed global variables to the value table.
492 for (Module::const_global_iterator I = TheModule->global_begin(),
493 E = TheModule->global_end(); I != E; ++I) {
498 // Add metadata used by named metadata.
499 for (Module::const_named_metadata_iterator
500 I = TheModule->named_metadata_begin(),
501 E = TheModule->named_metadata_end(); I != E; ++I) {
502 const NamedMDNode *NMD = I;
503 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
504 CreateMetadataSlot(NMD->getOperand(i));
507 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
510 // Add all the unnamed functions to the table.
513 // Add all the function attributes to the table.
514 // FIXME: Add attributes of other objects?
515 AttributeSet FnAttrs = I->getAttributes().getFnAttributes();
516 if (FnAttrs.hasAttributes(AttributeSet::FunctionIndex))
517 CreateAttributeSetSlot(FnAttrs);
520 ST_DEBUG("end processModule!\n");
523 // Process the arguments, basic blocks, and instructions of a function.
524 void SlotTracker::processFunction() {
525 ST_DEBUG("begin processFunction!\n");
528 // Add all the function arguments with no names.
529 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
530 AE = TheFunction->arg_end(); AI != AE; ++AI)
532 CreateFunctionSlot(AI);
534 ST_DEBUG("Inserting Instructions:\n");
536 SmallVector<std::pair<unsigned, MDNode*>, 4> MDForInst;
538 // Add all of the basic blocks and instructions with no names.
539 for (Function::const_iterator BB = TheFunction->begin(),
540 E = TheFunction->end(); BB != E; ++BB) {
542 CreateFunctionSlot(BB);
544 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E;
546 if (!I->getType()->isVoidTy() && !I->hasName())
547 CreateFunctionSlot(I);
549 // Intrinsics can directly use metadata. We allow direct calls to any
550 // llvm.foo function here, because the target may not be linked into the
552 if (const CallInst *CI = dyn_cast<CallInst>(I)) {
553 if (Function *F = CI->getCalledFunction())
554 if (F->getName().startswith("llvm."))
555 for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
556 if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i)))
557 CreateMetadataSlot(N);
559 // Add all the call attributes to the table.
560 AttributeSet Attrs = CI->getAttributes().getFnAttributes();
561 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
562 CreateAttributeSetSlot(Attrs);
563 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(I)) {
564 // Add all the call attributes to the table.
565 AttributeSet Attrs = II->getAttributes().getFnAttributes();
566 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
567 CreateAttributeSetSlot(Attrs);
570 // Process metadata attached with this instruction.
571 I->getAllMetadata(MDForInst);
572 for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
573 CreateMetadataSlot(MDForInst[i].second);
578 FunctionProcessed = true;
580 ST_DEBUG("end processFunction!\n");
583 /// Clean up after incorporating a function. This is the only way to get out of
584 /// the function incorporation state that affects get*Slot/Create*Slot. Function
585 /// incorporation state is indicated by TheFunction != 0.
586 void SlotTracker::purgeFunction() {
587 ST_DEBUG("begin purgeFunction!\n");
588 fMap.clear(); // Simply discard the function level map
590 FunctionProcessed = false;
591 ST_DEBUG("end purgeFunction!\n");
594 /// getGlobalSlot - Get the slot number of a global value.
595 int SlotTracker::getGlobalSlot(const GlobalValue *V) {
596 // Check for uninitialized state and do lazy initialization.
599 // Find the value in the module map
600 ValueMap::iterator MI = mMap.find(V);
601 return MI == mMap.end() ? -1 : (int)MI->second;
604 /// getMetadataSlot - Get the slot number of a MDNode.
605 int SlotTracker::getMetadataSlot(const MDNode *N) {
606 // Check for uninitialized state and do lazy initialization.
609 // Find the MDNode in the module map
610 mdn_iterator MI = mdnMap.find(N);
611 return MI == mdnMap.end() ? -1 : (int)MI->second;
615 /// getLocalSlot - Get the slot number for a value that is local to a function.
616 int SlotTracker::getLocalSlot(const Value *V) {
617 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
619 // Check for uninitialized state and do lazy initialization.
622 ValueMap::iterator FI = fMap.find(V);
623 return FI == fMap.end() ? -1 : (int)FI->second;
626 int SlotTracker::getAttributeGroupSlot(AttributeSet AS) {
627 // Check for uninitialized state and do lazy initialization.
630 // Find the AttributeSet in the module map.
631 as_iterator AI = asMap.find(AS);
632 return AI == asMap.end() ? -1 : (int)AI->second;
635 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
636 void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
637 assert(V && "Can't insert a null Value into SlotTracker!");
638 assert(!V->getType()->isVoidTy() && "Doesn't need a slot!");
639 assert(!V->hasName() && "Doesn't need a slot!");
641 unsigned DestSlot = mNext++;
644 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
646 // G = Global, F = Function, A = Alias, o = other
647 ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
648 (isa<Function>(V) ? 'F' :
649 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
652 /// CreateSlot - Create a new slot for the specified value if it has no name.
653 void SlotTracker::CreateFunctionSlot(const Value *V) {
654 assert(!V->getType()->isVoidTy() && !V->hasName() && "Doesn't need a slot!");
656 unsigned DestSlot = fNext++;
659 // G = Global, F = Function, o = other
660 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
661 DestSlot << " [o]\n");
664 /// CreateModuleSlot - Insert the specified MDNode* into the slot table.
665 void SlotTracker::CreateMetadataSlot(const MDNode *N) {
666 assert(N && "Can't insert a null Value into SlotTracker!");
668 // Don't insert if N is a function-local metadata, these are always printed
670 if (!N->isFunctionLocal()) {
671 mdn_iterator I = mdnMap.find(N);
672 if (I != mdnMap.end())
675 unsigned DestSlot = mdnNext++;
676 mdnMap[N] = DestSlot;
679 // Recursively add any MDNodes referenced by operands.
680 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
681 if (const MDNode *Op = dyn_cast_or_null<MDNode>(N->getOperand(i)))
682 CreateMetadataSlot(Op);
685 void SlotTracker::CreateAttributeSetSlot(AttributeSet AS) {
686 assert(AS.hasAttributes(AttributeSet::FunctionIndex) &&
687 "Doesn't need a slot!");
689 as_iterator I = asMap.find(AS);
690 if (I != asMap.end())
693 unsigned DestSlot = asNext++;
694 asMap[AS] = DestSlot;
697 //===----------------------------------------------------------------------===//
698 // AsmWriter Implementation
699 //===----------------------------------------------------------------------===//
701 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
702 TypePrinting *TypePrinter,
703 SlotTracker *Machine,
704 const Module *Context);
708 static const char *getPredicateText(unsigned predicate) {
709 const char * pred = "unknown";
711 case FCmpInst::FCMP_FALSE: pred = "false"; break;
712 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
713 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
714 case FCmpInst::FCMP_OGE: pred = "oge"; break;
715 case FCmpInst::FCMP_OLT: pred = "olt"; break;
716 case FCmpInst::FCMP_OLE: pred = "ole"; break;
717 case FCmpInst::FCMP_ONE: pred = "one"; break;
718 case FCmpInst::FCMP_ORD: pred = "ord"; break;
719 case FCmpInst::FCMP_UNO: pred = "uno"; break;
720 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
721 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
722 case FCmpInst::FCMP_UGE: pred = "uge"; break;
723 case FCmpInst::FCMP_ULT: pred = "ult"; break;
724 case FCmpInst::FCMP_ULE: pred = "ule"; break;
725 case FCmpInst::FCMP_UNE: pred = "une"; break;
726 case FCmpInst::FCMP_TRUE: pred = "true"; break;
727 case ICmpInst::ICMP_EQ: pred = "eq"; break;
728 case ICmpInst::ICMP_NE: pred = "ne"; break;
729 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
730 case ICmpInst::ICMP_SGE: pred = "sge"; break;
731 case ICmpInst::ICMP_SLT: pred = "slt"; break;
732 case ICmpInst::ICMP_SLE: pred = "sle"; break;
733 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
734 case ICmpInst::ICMP_UGE: pred = "uge"; break;
735 case ICmpInst::ICMP_ULT: pred = "ult"; break;
736 case ICmpInst::ICMP_ULE: pred = "ule"; break;
741 static void writeAtomicRMWOperation(raw_ostream &Out,
742 AtomicRMWInst::BinOp Op) {
744 default: Out << " <unknown operation " << Op << ">"; break;
745 case AtomicRMWInst::Xchg: Out << " xchg"; break;
746 case AtomicRMWInst::Add: Out << " add"; break;
747 case AtomicRMWInst::Sub: Out << " sub"; break;
748 case AtomicRMWInst::And: Out << " and"; break;
749 case AtomicRMWInst::Nand: Out << " nand"; break;
750 case AtomicRMWInst::Or: Out << " or"; break;
751 case AtomicRMWInst::Xor: Out << " xor"; break;
752 case AtomicRMWInst::Max: Out << " max"; break;
753 case AtomicRMWInst::Min: Out << " min"; break;
754 case AtomicRMWInst::UMax: Out << " umax"; break;
755 case AtomicRMWInst::UMin: Out << " umin"; break;
759 static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
760 if (const FPMathOperator *FPO = dyn_cast<const FPMathOperator>(U)) {
761 // Unsafe algebra implies all the others, no need to write them all out
762 if (FPO->hasUnsafeAlgebra())
765 if (FPO->hasNoNaNs())
767 if (FPO->hasNoInfs())
769 if (FPO->hasNoSignedZeros())
771 if (FPO->hasAllowReciprocal())
776 if (const OverflowingBinaryOperator *OBO =
777 dyn_cast<OverflowingBinaryOperator>(U)) {
778 if (OBO->hasNoUnsignedWrap())
780 if (OBO->hasNoSignedWrap())
782 } else if (const PossiblyExactOperator *Div =
783 dyn_cast<PossiblyExactOperator>(U)) {
786 } else if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
787 if (GEP->isInBounds())
792 static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
793 TypePrinting &TypePrinter,
794 SlotTracker *Machine,
795 const Module *Context) {
796 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
797 if (CI->getType()->isIntegerTy(1)) {
798 Out << (CI->getZExtValue() ? "true" : "false");
801 Out << CI->getValue();
805 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
806 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle ||
807 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble) {
808 // We would like to output the FP constant value in exponential notation,
809 // but we cannot do this if doing so will lose precision. Check here to
810 // make sure that we only output it in exponential format if we can parse
811 // the value back and get the same value.
814 bool isHalf = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEhalf;
815 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
816 bool isInf = CFP->getValueAPF().isInfinity();
817 bool isNaN = CFP->getValueAPF().isNaN();
818 if (!isHalf && !isInf && !isNaN) {
819 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
820 CFP->getValueAPF().convertToFloat();
821 SmallString<128> StrVal;
822 raw_svector_ostream(StrVal) << Val;
824 // Check to make sure that the stringized number is not some string like
825 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
826 // that the string matches the "[-+]?[0-9]" regex.
828 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
829 ((StrVal[0] == '-' || StrVal[0] == '+') &&
830 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
831 // Reparse stringized version!
832 if (APFloat(APFloat::IEEEdouble, StrVal).convertToDouble() == Val) {
838 // Otherwise we could not reparse it to exactly the same value, so we must
839 // output the string in hexadecimal format! Note that loading and storing
840 // floating point types changes the bits of NaNs on some hosts, notably
841 // x86, so we must not use these types.
842 assert(sizeof(double) == sizeof(uint64_t) &&
843 "assuming that double is 64 bits!");
845 APFloat apf = CFP->getValueAPF();
846 // Halves and floats are represented in ASCII IR as double, convert.
848 apf.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
851 utohex_buffer(uint64_t(apf.bitcastToAPInt().getZExtValue()),
856 // Either half, or some form of long double.
857 // These appear as a magic letter identifying the type, then a
858 // fixed number of hex digits.
860 // Bit position, in the current word, of the next nibble to print.
863 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended) {
865 // api needed to prevent premature destruction
866 APInt api = CFP->getValueAPF().bitcastToAPInt();
867 const uint64_t* p = api.getRawData();
868 uint64_t word = p[1];
870 int width = api.getBitWidth();
871 for (int j=0; j<width; j+=4, shiftcount-=4) {
872 unsigned int nibble = (word>>shiftcount) & 15;
874 Out << (unsigned char)(nibble + '0');
876 Out << (unsigned char)(nibble - 10 + 'A');
877 if (shiftcount == 0 && j+4 < width) {
881 shiftcount = width-j-4;
885 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad) {
888 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble) {
891 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEhalf) {
895 llvm_unreachable("Unsupported floating point type");
896 // api needed to prevent premature destruction
897 APInt api = CFP->getValueAPF().bitcastToAPInt();
898 const uint64_t* p = api.getRawData();
900 int width = api.getBitWidth();
901 for (int j=0; j<width; j+=4, shiftcount-=4) {
902 unsigned int nibble = (word>>shiftcount) & 15;
904 Out << (unsigned char)(nibble + '0');
906 Out << (unsigned char)(nibble - 10 + 'A');
907 if (shiftcount == 0 && j+4 < width) {
911 shiftcount = width-j-4;
917 if (isa<ConstantAggregateZero>(CV)) {
918 Out << "zeroinitializer";
922 if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
923 Out << "blockaddress(";
924 WriteAsOperandInternal(Out, BA->getFunction(), &TypePrinter, Machine,
927 WriteAsOperandInternal(Out, BA->getBasicBlock(), &TypePrinter, Machine,
933 if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
934 Type *ETy = CA->getType()->getElementType();
936 TypePrinter.print(ETy, Out);
938 WriteAsOperandInternal(Out, CA->getOperand(0),
939 &TypePrinter, Machine,
941 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
943 TypePrinter.print(ETy, Out);
945 WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
952 if (const ConstantDataArray *CA = dyn_cast<ConstantDataArray>(CV)) {
953 // As a special case, print the array as a string if it is an array of
954 // i8 with ConstantInt values.
955 if (CA->isString()) {
957 PrintEscapedString(CA->getAsString(), Out);
962 Type *ETy = CA->getType()->getElementType();
964 TypePrinter.print(ETy, Out);
966 WriteAsOperandInternal(Out, CA->getElementAsConstant(0),
967 &TypePrinter, Machine,
969 for (unsigned i = 1, e = CA->getNumElements(); i != e; ++i) {
971 TypePrinter.print(ETy, Out);
973 WriteAsOperandInternal(Out, CA->getElementAsConstant(i), &TypePrinter,
981 if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
982 if (CS->getType()->isPacked())
985 unsigned N = CS->getNumOperands();
988 TypePrinter.print(CS->getOperand(0)->getType(), Out);
991 WriteAsOperandInternal(Out, CS->getOperand(0), &TypePrinter, Machine,
994 for (unsigned i = 1; i < N; i++) {
996 TypePrinter.print(CS->getOperand(i)->getType(), Out);
999 WriteAsOperandInternal(Out, CS->getOperand(i), &TypePrinter, Machine,
1006 if (CS->getType()->isPacked())
1011 if (isa<ConstantVector>(CV) || isa<ConstantDataVector>(CV)) {
1012 Type *ETy = CV->getType()->getVectorElementType();
1014 TypePrinter.print(ETy, Out);
1016 WriteAsOperandInternal(Out, CV->getAggregateElement(0U), &TypePrinter,
1018 for (unsigned i = 1, e = CV->getType()->getVectorNumElements(); i != e;++i){
1020 TypePrinter.print(ETy, Out);
1022 WriteAsOperandInternal(Out, CV->getAggregateElement(i), &TypePrinter,
1029 if (isa<ConstantPointerNull>(CV)) {
1034 if (isa<UndefValue>(CV)) {
1039 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
1040 Out << CE->getOpcodeName();
1041 WriteOptimizationInfo(Out, CE);
1042 if (CE->isCompare())
1043 Out << ' ' << getPredicateText(CE->getPredicate());
1046 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
1047 TypePrinter.print((*OI)->getType(), Out);
1049 WriteAsOperandInternal(Out, *OI, &TypePrinter, Machine, Context);
1050 if (OI+1 != CE->op_end())
1054 if (CE->hasIndices()) {
1055 ArrayRef<unsigned> Indices = CE->getIndices();
1056 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
1057 Out << ", " << Indices[i];
1062 TypePrinter.print(CE->getType(), Out);
1069 Out << "<placeholder or erroneous Constant>";
1072 static void WriteMDNodeBodyInternal(raw_ostream &Out, const MDNode *Node,
1073 TypePrinting *TypePrinter,
1074 SlotTracker *Machine,
1075 const Module *Context) {
1077 for (unsigned mi = 0, me = Node->getNumOperands(); mi != me; ++mi) {
1078 const Value *V = Node->getOperand(mi);
1082 TypePrinter->print(V->getType(), Out);
1084 WriteAsOperandInternal(Out, Node->getOperand(mi),
1085 TypePrinter, Machine, Context);
1095 /// WriteAsOperand - Write the name of the specified value out to the specified
1096 /// ostream. This can be useful when you just want to print int %reg126, not
1097 /// the whole instruction that generated it.
1099 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
1100 TypePrinting *TypePrinter,
1101 SlotTracker *Machine,
1102 const Module *Context) {
1104 PrintLLVMName(Out, V);
1108 const Constant *CV = dyn_cast<Constant>(V);
1109 if (CV && !isa<GlobalValue>(CV)) {
1110 assert(TypePrinter && "Constants require TypePrinting!");
1111 WriteConstantInternal(Out, CV, *TypePrinter, Machine, Context);
1115 if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
1117 if (IA->hasSideEffects())
1118 Out << "sideeffect ";
1119 if (IA->isAlignStack())
1120 Out << "alignstack ";
1121 // We don't emit the AD_ATT dialect as it's the assumed default.
1122 if (IA->getDialect() == InlineAsm::AD_Intel)
1123 Out << "inteldialect ";
1125 PrintEscapedString(IA->getAsmString(), Out);
1127 PrintEscapedString(IA->getConstraintString(), Out);
1132 if (const MDNode *N = dyn_cast<MDNode>(V)) {
1133 if (N->isFunctionLocal()) {
1134 // Print metadata inline, not via slot reference number.
1135 WriteMDNodeBodyInternal(Out, N, TypePrinter, Machine, Context);
1140 if (N->isFunctionLocal())
1141 Machine = new SlotTracker(N->getFunction());
1143 Machine = new SlotTracker(Context);
1145 int Slot = Machine->getMetadataSlot(N);
1153 if (const MDString *MDS = dyn_cast<MDString>(V)) {
1155 PrintEscapedString(MDS->getString(), Out);
1160 if (V->getValueID() == Value::PseudoSourceValueVal ||
1161 V->getValueID() == Value::FixedStackPseudoSourceValueVal) {
1168 // If we have a SlotTracker, use it.
1170 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1171 Slot = Machine->getGlobalSlot(GV);
1174 Slot = Machine->getLocalSlot(V);
1176 // If the local value didn't succeed, then we may be referring to a value
1177 // from a different function. Translate it, as this can happen when using
1178 // address of blocks.
1180 if ((Machine = createSlotTracker(V))) {
1181 Slot = Machine->getLocalSlot(V);
1185 } else if ((Machine = createSlotTracker(V))) {
1186 // Otherwise, create one to get the # and then destroy it.
1187 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1188 Slot = Machine->getGlobalSlot(GV);
1191 Slot = Machine->getLocalSlot(V);
1200 Out << Prefix << Slot;
1205 void llvm::WriteAsOperand(raw_ostream &Out, const Value *V,
1206 bool PrintType, const Module *Context) {
1208 // Fast path: Don't construct and populate a TypePrinting object if we
1209 // won't be needing any types printed.
1211 ((!isa<Constant>(V) && !isa<MDNode>(V)) ||
1212 V->hasName() || isa<GlobalValue>(V))) {
1213 WriteAsOperandInternal(Out, V, 0, 0, Context);
1217 if (Context == 0) Context = getModuleFromVal(V);
1219 TypePrinting TypePrinter;
1221 TypePrinter.incorporateTypes(*Context);
1223 TypePrinter.print(V->getType(), Out);
1227 WriteAsOperandInternal(Out, V, &TypePrinter, 0, Context);
1232 class AssemblyWriter {
1233 formatted_raw_ostream &Out;
1234 SlotTracker &Machine;
1235 const Module *TheModule;
1236 TypePrinting TypePrinter;
1237 AssemblyAnnotationWriter *AnnotationWriter;
1240 inline AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
1242 AssemblyAnnotationWriter *AAW)
1243 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
1245 TypePrinter.incorporateTypes(*M);
1248 void printMDNodeBody(const MDNode *MD);
1249 void printNamedMDNode(const NamedMDNode *NMD);
1251 void printModule(const Module *M);
1253 void writeOperand(const Value *Op, bool PrintType);
1254 void writeParamOperand(const Value *Operand, AttributeSet Attrs,unsigned Idx);
1255 void writeAtomic(AtomicOrdering Ordering, SynchronizationScope SynchScope);
1257 void writeAllMDNodes();
1258 void writeAllAttributeGroups();
1260 void printTypeIdentities();
1261 void printGlobal(const GlobalVariable *GV);
1262 void printAlias(const GlobalAlias *GV);
1263 void printFunction(const Function *F);
1264 void printArgument(const Argument *FA, AttributeSet Attrs, unsigned Idx);
1265 void printBasicBlock(const BasicBlock *BB);
1266 void printInstruction(const Instruction &I);
1269 // printInfoComment - Print a little comment after the instruction indicating
1270 // which slot it occupies.
1271 void printInfoComment(const Value &V);
1273 } // end of anonymous namespace
1275 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
1277 Out << "<null operand!>";
1281 TypePrinter.print(Operand->getType(), Out);
1284 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1287 void AssemblyWriter::writeAtomic(AtomicOrdering Ordering,
1288 SynchronizationScope SynchScope) {
1289 if (Ordering == NotAtomic)
1292 switch (SynchScope) {
1293 case SingleThread: Out << " singlethread"; break;
1294 case CrossThread: break;
1298 default: Out << " <bad ordering " << int(Ordering) << ">"; break;
1299 case Unordered: Out << " unordered"; break;
1300 case Monotonic: Out << " monotonic"; break;
1301 case Acquire: Out << " acquire"; break;
1302 case Release: Out << " release"; break;
1303 case AcquireRelease: Out << " acq_rel"; break;
1304 case SequentiallyConsistent: Out << " seq_cst"; break;
1308 void AssemblyWriter::writeParamOperand(const Value *Operand,
1309 AttributeSet Attrs, unsigned Idx) {
1311 Out << "<null operand!>";
1316 TypePrinter.print(Operand->getType(), Out);
1317 // Print parameter attributes list
1318 if (Attrs.hasAttributes(Idx))
1319 Out << ' ' << Attrs.getAsString(Idx);
1321 // Print the operand
1322 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1325 void AssemblyWriter::printModule(const Module *M) {
1326 Machine.initialize();
1328 if (!M->getModuleIdentifier().empty() &&
1329 // Don't print the ID if it will start a new line (which would
1330 // require a comment char before it).
1331 M->getModuleIdentifier().find('\n') == std::string::npos)
1332 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
1334 if (!M->getDataLayout().empty())
1335 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
1336 if (!M->getTargetTriple().empty())
1337 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
1339 if (!M->getModuleInlineAsm().empty()) {
1340 // Split the string into lines, to make it easier to read the .ll file.
1341 std::string Asm = M->getModuleInlineAsm();
1343 size_t NewLine = Asm.find_first_of('\n', CurPos);
1345 while (NewLine != std::string::npos) {
1346 // We found a newline, print the portion of the asm string from the
1347 // last newline up to this newline.
1348 Out << "module asm \"";
1349 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
1353 NewLine = Asm.find_first_of('\n', CurPos);
1355 std::string rest(Asm.begin()+CurPos, Asm.end());
1356 if (!rest.empty()) {
1357 Out << "module asm \"";
1358 PrintEscapedString(rest, Out);
1363 printTypeIdentities();
1365 // Output all globals.
1366 if (!M->global_empty()) Out << '\n';
1367 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
1369 printGlobal(I); Out << '\n';
1372 // Output all aliases.
1373 if (!M->alias_empty()) Out << "\n";
1374 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
1378 // Output all of the functions.
1379 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
1382 // Output all attribute groups.
1383 if (!Machine.as_empty()) {
1385 writeAllAttributeGroups();
1388 // Output named metadata.
1389 if (!M->named_metadata_empty()) Out << '\n';
1391 for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
1392 E = M->named_metadata_end(); I != E; ++I)
1393 printNamedMDNode(I);
1396 if (!Machine.mdn_empty()) {
1402 void AssemblyWriter::printNamedMDNode(const NamedMDNode *NMD) {
1404 StringRef Name = NMD->getName();
1406 Out << "<empty name> ";
1408 if (isalpha(static_cast<unsigned char>(Name[0])) ||
1409 Name[0] == '-' || Name[0] == '$' ||
1410 Name[0] == '.' || Name[0] == '_')
1413 Out << '\\' << hexdigit(Name[0] >> 4) << hexdigit(Name[0] & 0x0F);
1414 for (unsigned i = 1, e = Name.size(); i != e; ++i) {
1415 unsigned char C = Name[i];
1416 if (isalnum(static_cast<unsigned char>(C)) || C == '-' || C == '$' ||
1417 C == '.' || C == '_')
1420 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
1424 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
1426 int Slot = Machine.getMetadataSlot(NMD->getOperand(i));
1436 static void PrintLinkage(GlobalValue::LinkageTypes LT,
1437 formatted_raw_ostream &Out) {
1439 case GlobalValue::ExternalLinkage: break;
1440 case GlobalValue::PrivateLinkage: Out << "private "; break;
1441 case GlobalValue::LinkerPrivateLinkage: Out << "linker_private "; break;
1442 case GlobalValue::LinkerPrivateWeakLinkage:
1443 Out << "linker_private_weak ";
1445 case GlobalValue::InternalLinkage: Out << "internal "; break;
1446 case GlobalValue::LinkOnceAnyLinkage: Out << "linkonce "; break;
1447 case GlobalValue::LinkOnceODRLinkage: Out << "linkonce_odr "; break;
1448 case GlobalValue::LinkOnceODRAutoHideLinkage:
1449 Out << "linkonce_odr_auto_hide ";
1451 case GlobalValue::WeakAnyLinkage: Out << "weak "; break;
1452 case GlobalValue::WeakODRLinkage: Out << "weak_odr "; break;
1453 case GlobalValue::CommonLinkage: Out << "common "; break;
1454 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1455 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1456 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1457 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1458 case GlobalValue::AvailableExternallyLinkage:
1459 Out << "available_externally ";
1465 static void PrintVisibility(GlobalValue::VisibilityTypes Vis,
1466 formatted_raw_ostream &Out) {
1468 case GlobalValue::DefaultVisibility: break;
1469 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1470 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1474 static void PrintThreadLocalModel(GlobalVariable::ThreadLocalMode TLM,
1475 formatted_raw_ostream &Out) {
1477 case GlobalVariable::NotThreadLocal:
1479 case GlobalVariable::GeneralDynamicTLSModel:
1480 Out << "thread_local ";
1482 case GlobalVariable::LocalDynamicTLSModel:
1483 Out << "thread_local(localdynamic) ";
1485 case GlobalVariable::InitialExecTLSModel:
1486 Out << "thread_local(initialexec) ";
1488 case GlobalVariable::LocalExecTLSModel:
1489 Out << "thread_local(localexec) ";
1494 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
1495 if (GV->isMaterializable())
1496 Out << "; Materializable\n";
1498 WriteAsOperandInternal(Out, GV, &TypePrinter, &Machine, GV->getParent());
1501 if (!GV->hasInitializer() && GV->hasExternalLinkage())
1504 PrintLinkage(GV->getLinkage(), Out);
1505 PrintVisibility(GV->getVisibility(), Out);
1506 PrintThreadLocalModel(GV->getThreadLocalMode(), Out);
1508 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1509 Out << "addrspace(" << AddressSpace << ") ";
1510 if (GV->hasUnnamedAddr()) Out << "unnamed_addr ";
1511 if (GV->isExternallyInitialized()) Out << "externally_initialized ";
1512 Out << (GV->isConstant() ? "constant " : "global ");
1513 TypePrinter.print(GV->getType()->getElementType(), Out);
1515 if (GV->hasInitializer()) {
1517 writeOperand(GV->getInitializer(), false);
1520 if (GV->hasSection()) {
1521 Out << ", section \"";
1522 PrintEscapedString(GV->getSection(), Out);
1525 if (GV->getAlignment())
1526 Out << ", align " << GV->getAlignment();
1528 printInfoComment(*GV);
1531 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1532 if (GA->isMaterializable())
1533 Out << "; Materializable\n";
1535 // Don't crash when dumping partially built GA
1537 Out << "<<nameless>> = ";
1539 PrintLLVMName(Out, GA);
1542 PrintVisibility(GA->getVisibility(), Out);
1546 PrintLinkage(GA->getLinkage(), Out);
1548 const Constant *Aliasee = GA->getAliasee();
1551 TypePrinter.print(GA->getType(), Out);
1552 Out << " <<NULL ALIASEE>>";
1554 writeOperand(Aliasee, !isa<ConstantExpr>(Aliasee));
1557 printInfoComment(*GA);
1561 void AssemblyWriter::printTypeIdentities() {
1562 if (TypePrinter.NumberedTypes.empty() &&
1563 TypePrinter.NamedTypes.empty())
1568 // We know all the numbers that each type is used and we know that it is a
1569 // dense assignment. Convert the map to an index table.
1570 std::vector<StructType*> NumberedTypes(TypePrinter.NumberedTypes.size());
1571 for (DenseMap<StructType*, unsigned>::iterator I =
1572 TypePrinter.NumberedTypes.begin(), E = TypePrinter.NumberedTypes.end();
1574 assert(I->second < NumberedTypes.size() && "Didn't get a dense numbering?");
1575 NumberedTypes[I->second] = I->first;
1578 // Emit all numbered types.
1579 for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i) {
1580 Out << '%' << i << " = type ";
1582 // Make sure we print out at least one level of the type structure, so
1583 // that we do not get %2 = type %2
1584 TypePrinter.printStructBody(NumberedTypes[i], Out);
1588 for (unsigned i = 0, e = TypePrinter.NamedTypes.size(); i != e; ++i) {
1589 PrintLLVMName(Out, TypePrinter.NamedTypes[i]->getName(), LocalPrefix);
1592 // Make sure we print out at least one level of the type structure, so
1593 // that we do not get %FILE = type %FILE
1594 TypePrinter.printStructBody(TypePrinter.NamedTypes[i], Out);
1599 /// printFunction - Print all aspects of a function.
1601 void AssemblyWriter::printFunction(const Function *F) {
1602 // Print out the return type and name.
1605 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1607 if (F->isMaterializable())
1608 Out << "; Materializable\n";
1610 const AttributeSet &Attrs = F->getAttributes();
1611 if (Attrs.hasAttributes(AttributeSet::FunctionIndex)) {
1612 AttributeSet AS = Attrs.getFnAttributes();
1613 std::string AttrStr;
1616 for (unsigned E = AS.getNumSlots(); Idx != E; ++Idx)
1617 if (AS.getSlotIndex(Idx) == AttributeSet::FunctionIndex)
1620 for (AttributeSet::iterator I = AS.begin(Idx), E = AS.end(Idx);
1622 Attribute Attr = *I;
1623 if (!Attr.isStringAttribute()) {
1624 if (!AttrStr.empty()) AttrStr += ' ';
1625 AttrStr += Attr.getAsString();
1629 if (!AttrStr.empty())
1630 Out << "; Function Attrs: " << AttrStr << '\n';
1633 if (F->isDeclaration())
1638 PrintLinkage(F->getLinkage(), Out);
1639 PrintVisibility(F->getVisibility(), Out);
1641 // Print the calling convention.
1642 if (F->getCallingConv() != CallingConv::C) {
1643 PrintCallingConv(F->getCallingConv(), Out);
1647 FunctionType *FT = F->getFunctionType();
1648 if (Attrs.hasAttributes(AttributeSet::ReturnIndex))
1649 Out << Attrs.getAsString(AttributeSet::ReturnIndex) << ' ';
1650 TypePrinter.print(F->getReturnType(), Out);
1652 WriteAsOperandInternal(Out, F, &TypePrinter, &Machine, F->getParent());
1654 Machine.incorporateFunction(F);
1656 // Loop over the arguments, printing them...
1659 if (!F->isDeclaration()) {
1660 // If this isn't a declaration, print the argument names as well.
1661 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1663 // Insert commas as we go... the first arg doesn't get a comma
1664 if (I != F->arg_begin()) Out << ", ";
1665 printArgument(I, Attrs, Idx);
1669 // Otherwise, print the types from the function type.
1670 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1671 // Insert commas as we go... the first arg doesn't get a comma
1675 TypePrinter.print(FT->getParamType(i), Out);
1677 if (Attrs.hasAttributes(i+1))
1678 Out << ' ' << Attrs.getAsString(i+1);
1682 // Finish printing arguments...
1683 if (FT->isVarArg()) {
1684 if (FT->getNumParams()) Out << ", ";
1685 Out << "..."; // Output varargs portion of signature!
1688 if (F->hasUnnamedAddr())
1689 Out << " unnamed_addr";
1690 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
1691 Out << " #" << Machine.getAttributeGroupSlot(Attrs.getFnAttributes());
1692 if (F->hasSection()) {
1693 Out << " section \"";
1694 PrintEscapedString(F->getSection(), Out);
1697 if (F->getAlignment())
1698 Out << " align " << F->getAlignment();
1700 Out << " gc \"" << F->getGC() << '"';
1701 if (F->isDeclaration()) {
1705 // Output all of the function's basic blocks.
1706 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1712 Machine.purgeFunction();
1715 /// printArgument - This member is called for every argument that is passed into
1716 /// the function. Simply print it out
1718 void AssemblyWriter::printArgument(const Argument *Arg,
1719 AttributeSet Attrs, unsigned Idx) {
1721 TypePrinter.print(Arg->getType(), Out);
1723 // Output parameter attributes list
1724 if (Attrs.hasAttributes(Idx))
1725 Out << ' ' << Attrs.getAsString(Idx);
1727 // Output name, if available...
1728 if (Arg->hasName()) {
1730 PrintLLVMName(Out, Arg);
1734 /// printBasicBlock - This member is called for each basic block in a method.
1736 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1737 if (BB->hasName()) { // Print out the label if it exists...
1739 PrintLLVMName(Out, BB->getName(), LabelPrefix);
1741 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1742 Out << "\n; <label>:";
1743 int Slot = Machine.getLocalSlot(BB);
1750 if (BB->getParent() == 0) {
1751 Out.PadToColumn(50);
1752 Out << "; Error: Block without parent!";
1753 } else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1754 // Output predecessors for the block.
1755 Out.PadToColumn(50);
1757 const_pred_iterator PI = pred_begin(BB), PE = pred_end(BB);
1760 Out << " No predecessors!";
1763 writeOperand(*PI, false);
1764 for (++PI; PI != PE; ++PI) {
1766 writeOperand(*PI, false);
1773 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1775 // Output all of the instructions in the basic block...
1776 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
1777 printInstruction(*I);
1781 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1784 /// printInfoComment - Print a little comment after the instruction indicating
1785 /// which slot it occupies.
1787 void AssemblyWriter::printInfoComment(const Value &V) {
1788 if (AnnotationWriter)
1789 AnnotationWriter->printInfoComment(V, Out);
1792 // This member is called for each Instruction in a function..
1793 void AssemblyWriter::printInstruction(const Instruction &I) {
1794 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1796 // Print out indentation for an instruction.
1799 // Print out name if it exists...
1801 PrintLLVMName(Out, &I);
1803 } else if (!I.getType()->isVoidTy()) {
1804 // Print out the def slot taken.
1805 int SlotNum = Machine.getLocalSlot(&I);
1807 Out << "<badref> = ";
1809 Out << '%' << SlotNum << " = ";
1812 if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall())
1815 // Print out the opcode...
1816 Out << I.getOpcodeName();
1818 // If this is an atomic load or store, print out the atomic marker.
1819 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isAtomic()) ||
1820 (isa<StoreInst>(I) && cast<StoreInst>(I).isAtomic()))
1823 // If this is a volatile operation, print out the volatile marker.
1824 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1825 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile()) ||
1826 (isa<AtomicCmpXchgInst>(I) && cast<AtomicCmpXchgInst>(I).isVolatile()) ||
1827 (isa<AtomicRMWInst>(I) && cast<AtomicRMWInst>(I).isVolatile()))
1830 // Print out optimization information.
1831 WriteOptimizationInfo(Out, &I);
1833 // Print out the compare instruction predicates
1834 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1835 Out << ' ' << getPredicateText(CI->getPredicate());
1837 // Print out the atomicrmw operation
1838 if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I))
1839 writeAtomicRMWOperation(Out, RMWI->getOperation());
1841 // Print out the type of the operands...
1842 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1844 // Special case conditional branches to swizzle the condition out to the front
1845 if (isa<BranchInst>(I) && cast<BranchInst>(I).isConditional()) {
1846 const BranchInst &BI(cast<BranchInst>(I));
1848 writeOperand(BI.getCondition(), true);
1850 writeOperand(BI.getSuccessor(0), true);
1852 writeOperand(BI.getSuccessor(1), true);
1854 } else if (isa<SwitchInst>(I)) {
1855 const SwitchInst& SI(cast<SwitchInst>(I));
1856 // Special case switch instruction to get formatting nice and correct.
1858 writeOperand(SI.getCondition(), true);
1860 writeOperand(SI.getDefaultDest(), true);
1862 for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end();
1865 writeOperand(i.getCaseValue(), true);
1867 writeOperand(i.getCaseSuccessor(), true);
1870 } else if (isa<IndirectBrInst>(I)) {
1871 // Special case indirectbr instruction to get formatting nice and correct.
1873 writeOperand(Operand, true);
1876 for (unsigned i = 1, e = I.getNumOperands(); i != e; ++i) {
1879 writeOperand(I.getOperand(i), true);
1882 } else if (const PHINode *PN = dyn_cast<PHINode>(&I)) {
1884 TypePrinter.print(I.getType(), Out);
1887 for (unsigned op = 0, Eop = PN->getNumIncomingValues(); op < Eop; ++op) {
1888 if (op) Out << ", ";
1890 writeOperand(PN->getIncomingValue(op), false); Out << ", ";
1891 writeOperand(PN->getIncomingBlock(op), false); Out << " ]";
1893 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1895 writeOperand(I.getOperand(0), true);
1896 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1898 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1900 writeOperand(I.getOperand(0), true); Out << ", ";
1901 writeOperand(I.getOperand(1), true);
1902 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1904 } else if (const LandingPadInst *LPI = dyn_cast<LandingPadInst>(&I)) {
1906 TypePrinter.print(I.getType(), Out);
1907 Out << " personality ";
1908 writeOperand(I.getOperand(0), true); Out << '\n';
1910 if (LPI->isCleanup())
1913 for (unsigned i = 0, e = LPI->getNumClauses(); i != e; ++i) {
1914 if (i != 0 || LPI->isCleanup()) Out << "\n";
1915 if (LPI->isCatch(i))
1920 writeOperand(LPI->getClause(i), true);
1922 } else if (isa<ReturnInst>(I) && !Operand) {
1924 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1925 // Print the calling convention being used.
1926 if (CI->getCallingConv() != CallingConv::C) {
1928 PrintCallingConv(CI->getCallingConv(), Out);
1931 Operand = CI->getCalledValue();
1932 PointerType *PTy = cast<PointerType>(Operand->getType());
1933 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1934 Type *RetTy = FTy->getReturnType();
1935 const AttributeSet &PAL = CI->getAttributes();
1937 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1938 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1940 // If possible, print out the short form of the call instruction. We can
1941 // only do this if the first argument is a pointer to a nonvararg function,
1942 // and if the return type is not a pointer to a function.
1945 if (!FTy->isVarArg() &&
1946 (!RetTy->isPointerTy() ||
1947 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1948 TypePrinter.print(RetTy, Out);
1950 writeOperand(Operand, false);
1952 writeOperand(Operand, true);
1955 for (unsigned op = 0, Eop = CI->getNumArgOperands(); op < Eop; ++op) {
1958 writeParamOperand(CI->getArgOperand(op), PAL, op + 1);
1961 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1962 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
1963 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1964 Operand = II->getCalledValue();
1965 PointerType *PTy = cast<PointerType>(Operand->getType());
1966 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1967 Type *RetTy = FTy->getReturnType();
1968 const AttributeSet &PAL = II->getAttributes();
1970 // Print the calling convention being used.
1971 if (II->getCallingConv() != CallingConv::C) {
1973 PrintCallingConv(II->getCallingConv(), Out);
1976 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1977 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1979 // If possible, print out the short form of the invoke instruction. We can
1980 // only do this if the first argument is a pointer to a nonvararg function,
1981 // and if the return type is not a pointer to a function.
1984 if (!FTy->isVarArg() &&
1985 (!RetTy->isPointerTy() ||
1986 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1987 TypePrinter.print(RetTy, Out);
1989 writeOperand(Operand, false);
1991 writeOperand(Operand, true);
1994 for (unsigned op = 0, Eop = II->getNumArgOperands(); op < Eop; ++op) {
1997 writeParamOperand(II->getArgOperand(op), PAL, op + 1);
2001 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
2002 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
2005 writeOperand(II->getNormalDest(), true);
2007 writeOperand(II->getUnwindDest(), true);
2009 } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
2011 TypePrinter.print(AI->getAllocatedType(), Out);
2012 if (!AI->getArraySize() || AI->isArrayAllocation()) {
2014 writeOperand(AI->getArraySize(), true);
2016 if (AI->getAlignment()) {
2017 Out << ", align " << AI->getAlignment();
2019 } else if (isa<CastInst>(I)) {
2022 writeOperand(Operand, true); // Work with broken code
2025 TypePrinter.print(I.getType(), Out);
2026 } else if (isa<VAArgInst>(I)) {
2029 writeOperand(Operand, true); // Work with broken code
2032 TypePrinter.print(I.getType(), Out);
2033 } else if (Operand) { // Print the normal way.
2035 // PrintAllTypes - Instructions who have operands of all the same type
2036 // omit the type from all but the first operand. If the instruction has
2037 // different type operands (for example br), then they are all printed.
2038 bool PrintAllTypes = false;
2039 Type *TheType = Operand->getType();
2041 // Select, Store and ShuffleVector always print all types.
2042 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
2043 || isa<ReturnInst>(I)) {
2044 PrintAllTypes = true;
2046 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
2047 Operand = I.getOperand(i);
2048 // note that Operand shouldn't be null, but the test helps make dump()
2049 // more tolerant of malformed IR
2050 if (Operand && Operand->getType() != TheType) {
2051 PrintAllTypes = true; // We have differing types! Print them all!
2057 if (!PrintAllTypes) {
2059 TypePrinter.print(TheType, Out);
2063 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
2065 writeOperand(I.getOperand(i), PrintAllTypes);
2069 // Print atomic ordering/alignment for memory operations
2070 if (const LoadInst *LI = dyn_cast<LoadInst>(&I)) {
2072 writeAtomic(LI->getOrdering(), LI->getSynchScope());
2073 if (LI->getAlignment())
2074 Out << ", align " << LI->getAlignment();
2075 } else if (const StoreInst *SI = dyn_cast<StoreInst>(&I)) {
2077 writeAtomic(SI->getOrdering(), SI->getSynchScope());
2078 if (SI->getAlignment())
2079 Out << ", align " << SI->getAlignment();
2080 } else if (const AtomicCmpXchgInst *CXI = dyn_cast<AtomicCmpXchgInst>(&I)) {
2081 writeAtomic(CXI->getOrdering(), CXI->getSynchScope());
2082 } else if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I)) {
2083 writeAtomic(RMWI->getOrdering(), RMWI->getSynchScope());
2084 } else if (const FenceInst *FI = dyn_cast<FenceInst>(&I)) {
2085 writeAtomic(FI->getOrdering(), FI->getSynchScope());
2088 // Print Metadata info.
2089 SmallVector<std::pair<unsigned, MDNode*>, 4> InstMD;
2090 I.getAllMetadata(InstMD);
2091 if (!InstMD.empty()) {
2092 SmallVector<StringRef, 8> MDNames;
2093 I.getType()->getContext().getMDKindNames(MDNames);
2094 for (unsigned i = 0, e = InstMD.size(); i != e; ++i) {
2095 unsigned Kind = InstMD[i].first;
2096 if (Kind < MDNames.size()) {
2097 Out << ", !" << MDNames[Kind];
2099 Out << ", !<unknown kind #" << Kind << ">";
2102 WriteAsOperandInternal(Out, InstMD[i].second, &TypePrinter, &Machine,
2106 printInfoComment(I);
2109 static void WriteMDNodeComment(const MDNode *Node,
2110 formatted_raw_ostream &Out) {
2111 if (Node->getNumOperands() < 1)
2114 Value *Op = Node->getOperand(0);
2115 if (!Op || !isa<ConstantInt>(Op) || cast<ConstantInt>(Op)->getBitWidth() < 32)
2118 DIDescriptor Desc(Node);
2122 unsigned Tag = Desc.getTag();
2123 Out.PadToColumn(50);
2124 if (dwarf::TagString(Tag)) {
2127 } else if (Tag == dwarf::DW_TAG_user_base) {
2128 Out << "; [ DW_TAG_user_base ]";
2132 void AssemblyWriter::writeAllMDNodes() {
2133 SmallVector<const MDNode *, 16> Nodes;
2134 Nodes.resize(Machine.mdn_size());
2135 for (SlotTracker::mdn_iterator I = Machine.mdn_begin(), E = Machine.mdn_end();
2137 Nodes[I->second] = cast<MDNode>(I->first);
2139 for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
2140 Out << '!' << i << " = metadata ";
2141 printMDNodeBody(Nodes[i]);
2145 void AssemblyWriter::printMDNodeBody(const MDNode *Node) {
2146 WriteMDNodeBodyInternal(Out, Node, &TypePrinter, &Machine, TheModule);
2147 WriteMDNodeComment(Node, Out);
2151 void AssemblyWriter::writeAllAttributeGroups() {
2152 std::vector<std::pair<AttributeSet, unsigned> > asVec;
2153 asVec.resize(Machine.as_size());
2155 for (SlotTracker::as_iterator I = Machine.as_begin(), E = Machine.as_end();
2157 asVec[I->second] = *I;
2159 for (std::vector<std::pair<AttributeSet, unsigned> >::iterator
2160 I = asVec.begin(), E = asVec.end(); I != E; ++I)
2161 Out << "attributes #" << I->second << " = { "
2162 << I->first.getAsString(AttributeSet::FunctionIndex, true) << " }\n";
2165 //===----------------------------------------------------------------------===//
2166 // External Interface declarations
2167 //===----------------------------------------------------------------------===//
2169 void Module::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2170 SlotTracker SlotTable(this);
2171 formatted_raw_ostream OS(ROS);
2172 AssemblyWriter W(OS, SlotTable, this, AAW);
2173 W.printModule(this);
2176 void NamedMDNode::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2177 SlotTracker SlotTable(getParent());
2178 formatted_raw_ostream OS(ROS);
2179 AssemblyWriter W(OS, SlotTable, getParent(), AAW);
2180 W.printNamedMDNode(this);
2183 void Type::print(raw_ostream &OS) const {
2185 OS << "<null Type>";
2189 TP.print(const_cast<Type*>(this), OS);
2191 // If the type is a named struct type, print the body as well.
2192 if (StructType *STy = dyn_cast<StructType>(const_cast<Type*>(this)))
2193 if (!STy->isLiteral()) {
2195 TP.printStructBody(STy, OS);
2199 void Value::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2201 ROS << "printing a <null> value\n";
2204 formatted_raw_ostream OS(ROS);
2205 if (const Instruction *I = dyn_cast<Instruction>(this)) {
2206 const Function *F = I->getParent() ? I->getParent()->getParent() : 0;
2207 SlotTracker SlotTable(F);
2208 AssemblyWriter W(OS, SlotTable, getModuleFromVal(I), AAW);
2209 W.printInstruction(*I);
2210 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(this)) {
2211 SlotTracker SlotTable(BB->getParent());
2212 AssemblyWriter W(OS, SlotTable, getModuleFromVal(BB), AAW);
2213 W.printBasicBlock(BB);
2214 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(this)) {
2215 SlotTracker SlotTable(GV->getParent());
2216 AssemblyWriter W(OS, SlotTable, GV->getParent(), AAW);
2217 if (const GlobalVariable *V = dyn_cast<GlobalVariable>(GV))
2219 else if (const Function *F = dyn_cast<Function>(GV))
2222 W.printAlias(cast<GlobalAlias>(GV));
2223 } else if (const MDNode *N = dyn_cast<MDNode>(this)) {
2224 const Function *F = N->getFunction();
2225 SlotTracker SlotTable(F);
2226 AssemblyWriter W(OS, SlotTable, F ? F->getParent() : 0, AAW);
2227 W.printMDNodeBody(N);
2228 } else if (const Constant *C = dyn_cast<Constant>(this)) {
2229 TypePrinting TypePrinter;
2230 TypePrinter.print(C->getType(), OS);
2232 WriteConstantInternal(OS, C, TypePrinter, 0, 0);
2233 } else if (isa<InlineAsm>(this) || isa<MDString>(this) ||
2234 isa<Argument>(this)) {
2235 WriteAsOperand(OS, this, true, 0);
2237 // Otherwise we don't know what it is. Call the virtual function to
2238 // allow a subclass to print itself.
2243 // Value::printCustom - subclasses should override this to implement printing.
2244 void Value::printCustom(raw_ostream &OS) const {
2245 llvm_unreachable("Unknown value to print out!");
2248 // Value::dump - allow easy printing of Values from the debugger.
2249 void Value::dump() const { print(dbgs()); dbgs() << '\n'; }
2251 // Type::dump - allow easy printing of Types from the debugger.
2252 void Type::dump() const { print(dbgs()); }
2254 // Module::dump() - Allow printing of Modules from the debugger.
2255 void Module::dump() const { print(dbgs(), 0); }
2257 // NamedMDNode::dump() - Allow printing of NamedMDNodes from the debugger.
2258 void NamedMDNode::dump() const { print(dbgs(), 0); }