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;
87 // PrintEscapedString - Print each character of the specified string, escaping
88 // it if it is not printable or if it is an escape char.
89 static void PrintEscapedString(StringRef Name, raw_ostream &Out) {
90 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
91 unsigned char C = Name[i];
92 if (isprint(C) && C != '\\' && C != '"')
95 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
106 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
107 /// prefixed with % (if the string only contains simple characters) or is
108 /// surrounded with ""'s (if it has special chars in it). Print it out.
109 static void PrintLLVMName(raw_ostream &OS, StringRef Name, PrefixType Prefix) {
110 assert(!Name.empty() && "Cannot get empty name!");
112 case NoPrefix: break;
113 case GlobalPrefix: OS << '@'; break;
114 case LabelPrefix: break;
115 case LocalPrefix: OS << '%'; break;
118 // Scan the name to see if it needs quotes first.
119 bool NeedsQuotes = isdigit(static_cast<unsigned char>(Name[0]));
121 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
122 // By making this unsigned, the value passed in to isalnum will always be
123 // in the range 0-255. This is important when building with MSVC because
124 // its implementation will assert. This situation can arise when dealing
125 // with UTF-8 multibyte characters.
126 unsigned char C = Name[i];
127 if (!isalnum(static_cast<unsigned char>(C)) && C != '-' && C != '.' &&
135 // If we didn't need any quotes, just write out the name in one blast.
141 // Okay, we need quotes. Output the quotes and escape any scary characters as
144 PrintEscapedString(Name, OS);
148 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
149 /// prefixed with % (if the string only contains simple characters) or is
150 /// surrounded with ""'s (if it has special chars in it). Print it out.
151 static void PrintLLVMName(raw_ostream &OS, const Value *V) {
152 PrintLLVMName(OS, V->getName(),
153 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
156 //===----------------------------------------------------------------------===//
157 // TypePrinting Class: Type printing machinery
158 //===----------------------------------------------------------------------===//
160 /// TypePrinting - Type printing machinery.
163 TypePrinting(const TypePrinting &) LLVM_DELETED_FUNCTION;
164 void operator=(const TypePrinting&) LLVM_DELETED_FUNCTION;
167 /// NamedTypes - The named types that are used by the current module.
168 TypeFinder NamedTypes;
170 /// NumberedTypes - The numbered types, along with their value.
171 DenseMap<StructType*, unsigned> NumberedTypes;
177 void incorporateTypes(const Module &M);
179 void print(Type *Ty, raw_ostream &OS);
181 void printStructBody(StructType *Ty, raw_ostream &OS);
183 } // end anonymous namespace.
186 void TypePrinting::incorporateTypes(const Module &M) {
187 NamedTypes.run(M, false);
189 // The list of struct types we got back includes all the struct types, split
190 // the unnamed ones out to a numbering and remove the anonymous structs.
191 unsigned NextNumber = 0;
193 std::vector<StructType*>::iterator NextToUse = NamedTypes.begin(), I, E;
194 for (I = NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) {
195 StructType *STy = *I;
197 // Ignore anonymous types.
198 if (STy->isLiteral())
201 if (STy->getName().empty())
202 NumberedTypes[STy] = NextNumber++;
207 NamedTypes.erase(NextToUse, NamedTypes.end());
211 /// CalcTypeName - Write the specified type to the specified raw_ostream, making
212 /// use of type names or up references to shorten the type name where possible.
213 void TypePrinting::print(Type *Ty, raw_ostream &OS) {
214 switch (Ty->getTypeID()) {
215 case Type::VoidTyID: OS << "void"; break;
216 case Type::HalfTyID: OS << "half"; break;
217 case Type::FloatTyID: OS << "float"; break;
218 case Type::DoubleTyID: OS << "double"; break;
219 case Type::X86_FP80TyID: OS << "x86_fp80"; break;
220 case Type::FP128TyID: OS << "fp128"; break;
221 case Type::PPC_FP128TyID: OS << "ppc_fp128"; break;
222 case Type::LabelTyID: OS << "label"; break;
223 case Type::MetadataTyID: OS << "metadata"; break;
224 case Type::X86_MMXTyID: OS << "x86_mmx"; break;
225 case Type::IntegerTyID:
226 OS << 'i' << cast<IntegerType>(Ty)->getBitWidth();
229 case Type::FunctionTyID: {
230 FunctionType *FTy = cast<FunctionType>(Ty);
231 print(FTy->getReturnType(), OS);
233 for (FunctionType::param_iterator I = FTy->param_begin(),
234 E = FTy->param_end(); I != E; ++I) {
235 if (I != FTy->param_begin())
239 if (FTy->isVarArg()) {
240 if (FTy->getNumParams()) OS << ", ";
246 case Type::StructTyID: {
247 StructType *STy = cast<StructType>(Ty);
249 if (STy->isLiteral())
250 return printStructBody(STy, OS);
252 if (!STy->getName().empty())
253 return PrintLLVMName(OS, STy->getName(), LocalPrefix);
255 DenseMap<StructType*, unsigned>::iterator I = NumberedTypes.find(STy);
256 if (I != NumberedTypes.end())
257 OS << '%' << I->second;
258 else // Not enumerated, print the hex address.
259 OS << "%\"type " << STy << '\"';
262 case Type::PointerTyID: {
263 PointerType *PTy = cast<PointerType>(Ty);
264 print(PTy->getElementType(), OS);
265 if (unsigned AddressSpace = PTy->getAddressSpace())
266 OS << " addrspace(" << AddressSpace << ')';
270 case Type::ArrayTyID: {
271 ArrayType *ATy = cast<ArrayType>(Ty);
272 OS << '[' << ATy->getNumElements() << " x ";
273 print(ATy->getElementType(), OS);
277 case Type::VectorTyID: {
278 VectorType *PTy = cast<VectorType>(Ty);
279 OS << "<" << PTy->getNumElements() << " x ";
280 print(PTy->getElementType(), OS);
285 OS << "<unrecognized-type>";
290 void TypePrinting::printStructBody(StructType *STy, raw_ostream &OS) {
291 if (STy->isOpaque()) {
299 if (STy->getNumElements() == 0) {
302 StructType::element_iterator I = STy->element_begin();
305 for (StructType::element_iterator E = STy->element_end(); I != E; ++I) {
318 //===----------------------------------------------------------------------===//
319 // SlotTracker Class: Enumerate slot numbers for unnamed values
320 //===----------------------------------------------------------------------===//
324 /// This class provides computation of slot numbers for LLVM Assembly writing.
328 /// ValueMap - A mapping of Values to slot numbers.
329 typedef DenseMap<const Value*, unsigned> ValueMap;
332 /// TheModule - The module for which we are holding slot numbers.
333 const Module* TheModule;
335 /// TheFunction - The function for which we are holding slot numbers.
336 const Function* TheFunction;
337 bool FunctionProcessed;
339 /// mMap - The slot map for the module level data.
343 /// fMap - The slot map for the function level data.
347 /// mdnMap - Map for MDNodes.
348 DenseMap<const MDNode*, unsigned> mdnMap;
351 /// asMap - The slot map for attribute sets.
352 DenseMap<AttributeSet, unsigned> asMap;
355 /// Construct from a module
356 explicit SlotTracker(const Module *M);
357 /// Construct from a function, starting out in incorp state.
358 explicit SlotTracker(const Function *F);
360 /// Return the slot number of the specified value in it's type
361 /// plane. If something is not in the SlotTracker, return -1.
362 int getLocalSlot(const Value *V);
363 int getGlobalSlot(const GlobalValue *V);
364 int getMetadataSlot(const MDNode *N);
365 int getAttributeGroupSlot(AttributeSet AS);
367 /// If you'd like to deal with a function instead of just a module, use
368 /// this method to get its data into the SlotTracker.
369 void incorporateFunction(const Function *F) {
371 FunctionProcessed = false;
374 /// After calling incorporateFunction, use this method to remove the
375 /// most recently incorporated function from the SlotTracker. This
376 /// will reset the state of the machine back to just the module contents.
377 void purgeFunction();
379 /// MDNode map iterators.
380 typedef DenseMap<const MDNode*, unsigned>::iterator mdn_iterator;
381 mdn_iterator mdn_begin() { return mdnMap.begin(); }
382 mdn_iterator mdn_end() { return mdnMap.end(); }
383 unsigned mdn_size() const { return mdnMap.size(); }
384 bool mdn_empty() const { return mdnMap.empty(); }
386 /// AttributeSet map iterators.
387 typedef DenseMap<AttributeSet, unsigned>::iterator as_iterator;
388 as_iterator as_begin() { return asMap.begin(); }
389 as_iterator as_end() { return asMap.end(); }
390 unsigned as_size() const { return asMap.size(); }
391 bool as_empty() const { return asMap.empty(); }
393 /// This function does the actual initialization.
394 inline void initialize();
396 // Implementation Details
398 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
399 void CreateModuleSlot(const GlobalValue *V);
401 /// CreateMetadataSlot - Insert the specified MDNode* into the slot table.
402 void CreateMetadataSlot(const MDNode *N);
404 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
405 void CreateFunctionSlot(const Value *V);
407 /// \brief Insert the specified AttributeSet into the slot table.
408 void CreateAttributeSetSlot(AttributeSet AS);
410 /// Add all of the module level global variables (and their initializers)
411 /// and function declarations, but not the contents of those functions.
412 void processModule();
414 /// Add all of the functions arguments, basic blocks, and instructions.
415 void processFunction();
417 SlotTracker(const SlotTracker &) LLVM_DELETED_FUNCTION;
418 void operator=(const SlotTracker &) LLVM_DELETED_FUNCTION;
421 } // end anonymous namespace
424 static SlotTracker *createSlotTracker(const Value *V) {
425 if (const Argument *FA = dyn_cast<Argument>(V))
426 return new SlotTracker(FA->getParent());
428 if (const Instruction *I = dyn_cast<Instruction>(V))
430 return new SlotTracker(I->getParent()->getParent());
432 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
433 return new SlotTracker(BB->getParent());
435 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
436 return new SlotTracker(GV->getParent());
438 if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
439 return new SlotTracker(GA->getParent());
441 if (const Function *Func = dyn_cast<Function>(V))
442 return new SlotTracker(Func);
444 if (const MDNode *MD = dyn_cast<MDNode>(V)) {
445 if (!MD->isFunctionLocal())
446 return new SlotTracker(MD->getFunction());
448 return new SlotTracker((Function *)0);
455 #define ST_DEBUG(X) dbgs() << X
460 // Module level constructor. Causes the contents of the Module (sans functions)
461 // to be added to the slot table.
462 SlotTracker::SlotTracker(const Module *M)
463 : TheModule(M), TheFunction(0), FunctionProcessed(false),
464 mNext(0), fNext(0), mdnNext(0), asNext(0) {
467 // Function level constructor. Causes the contents of the Module and the one
468 // function provided to be added to the slot table.
469 SlotTracker::SlotTracker(const Function *F)
470 : TheModule(F ? F->getParent() : 0), TheFunction(F), FunctionProcessed(false),
471 mNext(0), fNext(0), mdnNext(0), asNext(0) {
474 inline void SlotTracker::initialize() {
477 TheModule = 0; ///< Prevent re-processing next time we're called.
480 if (TheFunction && !FunctionProcessed)
484 // Iterate through all the global variables, functions, and global
485 // variable initializers and create slots for them.
486 void SlotTracker::processModule() {
487 ST_DEBUG("begin processModule!\n");
489 // Add all of the unnamed global variables to the value table.
490 for (Module::const_global_iterator I = TheModule->global_begin(),
491 E = TheModule->global_end(); I != E; ++I) {
496 // Add metadata used by named metadata.
497 for (Module::const_named_metadata_iterator
498 I = TheModule->named_metadata_begin(),
499 E = TheModule->named_metadata_end(); I != E; ++I) {
500 const NamedMDNode *NMD = I;
501 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
502 CreateMetadataSlot(NMD->getOperand(i));
505 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
508 // Add all the unnamed functions to the table.
511 // Add all the function attributes to the table.
512 // FIXME: Add attributes of other objects?
513 AttributeSet FnAttrs = I->getAttributes().getFnAttributes();
514 if (FnAttrs.hasAttributes(AttributeSet::FunctionIndex))
515 CreateAttributeSetSlot(FnAttrs);
518 ST_DEBUG("end processModule!\n");
521 // Process the arguments, basic blocks, and instructions of a function.
522 void SlotTracker::processFunction() {
523 ST_DEBUG("begin processFunction!\n");
526 // Add all the function arguments with no names.
527 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
528 AE = TheFunction->arg_end(); AI != AE; ++AI)
530 CreateFunctionSlot(AI);
532 ST_DEBUG("Inserting Instructions:\n");
534 SmallVector<std::pair<unsigned, MDNode*>, 4> MDForInst;
536 // Add all of the basic blocks and instructions with no names.
537 for (Function::const_iterator BB = TheFunction->begin(),
538 E = TheFunction->end(); BB != E; ++BB) {
540 CreateFunctionSlot(BB);
542 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E;
544 if (!I->getType()->isVoidTy() && !I->hasName())
545 CreateFunctionSlot(I);
547 // Intrinsics can directly use metadata. We allow direct calls to any
548 // llvm.foo function here, because the target may not be linked into the
550 if (const CallInst *CI = dyn_cast<CallInst>(I)) {
551 if (Function *F = CI->getCalledFunction())
552 if (F->getName().startswith("llvm."))
553 for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
554 if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i)))
555 CreateMetadataSlot(N);
557 // Add all the call attributes to the table.
558 AttributeSet Attrs = CI->getAttributes().getFnAttributes();
559 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
560 CreateAttributeSetSlot(Attrs);
561 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(I)) {
562 // Add all the call attributes to the table.
563 AttributeSet Attrs = II->getAttributes().getFnAttributes();
564 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
565 CreateAttributeSetSlot(Attrs);
568 // Process metadata attached with this instruction.
569 I->getAllMetadata(MDForInst);
570 for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
571 CreateMetadataSlot(MDForInst[i].second);
576 FunctionProcessed = true;
578 ST_DEBUG("end processFunction!\n");
581 /// Clean up after incorporating a function. This is the only way to get out of
582 /// the function incorporation state that affects get*Slot/Create*Slot. Function
583 /// incorporation state is indicated by TheFunction != 0.
584 void SlotTracker::purgeFunction() {
585 ST_DEBUG("begin purgeFunction!\n");
586 fMap.clear(); // Simply discard the function level map
588 FunctionProcessed = false;
589 ST_DEBUG("end purgeFunction!\n");
592 /// getGlobalSlot - Get the slot number of a global value.
593 int SlotTracker::getGlobalSlot(const GlobalValue *V) {
594 // Check for uninitialized state and do lazy initialization.
597 // Find the value in the module map
598 ValueMap::iterator MI = mMap.find(V);
599 return MI == mMap.end() ? -1 : (int)MI->second;
602 /// getMetadataSlot - Get the slot number of a MDNode.
603 int SlotTracker::getMetadataSlot(const MDNode *N) {
604 // Check for uninitialized state and do lazy initialization.
607 // Find the MDNode in the module map
608 mdn_iterator MI = mdnMap.find(N);
609 return MI == mdnMap.end() ? -1 : (int)MI->second;
613 /// getLocalSlot - Get the slot number for a value that is local to a function.
614 int SlotTracker::getLocalSlot(const Value *V) {
615 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
617 // Check for uninitialized state and do lazy initialization.
620 ValueMap::iterator FI = fMap.find(V);
621 return FI == fMap.end() ? -1 : (int)FI->second;
624 int SlotTracker::getAttributeGroupSlot(AttributeSet AS) {
625 // Check for uninitialized state and do lazy initialization.
628 // Find the AttributeSet in the module map.
629 as_iterator AI = asMap.find(AS);
630 return AI == asMap.end() ? -1 : (int)AI->second;
633 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
634 void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
635 assert(V && "Can't insert a null Value into SlotTracker!");
636 assert(!V->getType()->isVoidTy() && "Doesn't need a slot!");
637 assert(!V->hasName() && "Doesn't need a slot!");
639 unsigned DestSlot = mNext++;
642 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
644 // G = Global, F = Function, A = Alias, o = other
645 ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
646 (isa<Function>(V) ? 'F' :
647 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
650 /// CreateSlot - Create a new slot for the specified value if it has no name.
651 void SlotTracker::CreateFunctionSlot(const Value *V) {
652 assert(!V->getType()->isVoidTy() && !V->hasName() && "Doesn't need a slot!");
654 unsigned DestSlot = fNext++;
657 // G = Global, F = Function, o = other
658 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
659 DestSlot << " [o]\n");
662 /// CreateModuleSlot - Insert the specified MDNode* into the slot table.
663 void SlotTracker::CreateMetadataSlot(const MDNode *N) {
664 assert(N && "Can't insert a null Value into SlotTracker!");
666 // Don't insert if N is a function-local metadata, these are always printed
668 if (!N->isFunctionLocal()) {
669 mdn_iterator I = mdnMap.find(N);
670 if (I != mdnMap.end())
673 unsigned DestSlot = mdnNext++;
674 mdnMap[N] = DestSlot;
677 // Recursively add any MDNodes referenced by operands.
678 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
679 if (const MDNode *Op = dyn_cast_or_null<MDNode>(N->getOperand(i)))
680 CreateMetadataSlot(Op);
683 void SlotTracker::CreateAttributeSetSlot(AttributeSet AS) {
684 assert(AS.hasAttributes(AttributeSet::FunctionIndex) &&
685 "Doesn't need a slot!");
687 as_iterator I = asMap.find(AS);
688 if (I != asMap.end())
691 unsigned DestSlot = asNext++;
692 asMap[AS] = DestSlot;
695 //===----------------------------------------------------------------------===//
696 // AsmWriter Implementation
697 //===----------------------------------------------------------------------===//
699 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
700 TypePrinting *TypePrinter,
701 SlotTracker *Machine,
702 const Module *Context);
706 static const char *getPredicateText(unsigned predicate) {
707 const char * pred = "unknown";
709 case FCmpInst::FCMP_FALSE: pred = "false"; break;
710 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
711 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
712 case FCmpInst::FCMP_OGE: pred = "oge"; break;
713 case FCmpInst::FCMP_OLT: pred = "olt"; break;
714 case FCmpInst::FCMP_OLE: pred = "ole"; break;
715 case FCmpInst::FCMP_ONE: pred = "one"; break;
716 case FCmpInst::FCMP_ORD: pred = "ord"; break;
717 case FCmpInst::FCMP_UNO: pred = "uno"; break;
718 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
719 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
720 case FCmpInst::FCMP_UGE: pred = "uge"; break;
721 case FCmpInst::FCMP_ULT: pred = "ult"; break;
722 case FCmpInst::FCMP_ULE: pred = "ule"; break;
723 case FCmpInst::FCMP_UNE: pred = "une"; break;
724 case FCmpInst::FCMP_TRUE: pred = "true"; break;
725 case ICmpInst::ICMP_EQ: pred = "eq"; break;
726 case ICmpInst::ICMP_NE: pred = "ne"; break;
727 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
728 case ICmpInst::ICMP_SGE: pred = "sge"; break;
729 case ICmpInst::ICMP_SLT: pred = "slt"; break;
730 case ICmpInst::ICMP_SLE: pred = "sle"; break;
731 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
732 case ICmpInst::ICMP_UGE: pred = "uge"; break;
733 case ICmpInst::ICMP_ULT: pred = "ult"; break;
734 case ICmpInst::ICMP_ULE: pred = "ule"; break;
739 static void writeAtomicRMWOperation(raw_ostream &Out,
740 AtomicRMWInst::BinOp Op) {
742 default: Out << " <unknown operation " << Op << ">"; break;
743 case AtomicRMWInst::Xchg: Out << " xchg"; break;
744 case AtomicRMWInst::Add: Out << " add"; break;
745 case AtomicRMWInst::Sub: Out << " sub"; break;
746 case AtomicRMWInst::And: Out << " and"; break;
747 case AtomicRMWInst::Nand: Out << " nand"; break;
748 case AtomicRMWInst::Or: Out << " or"; break;
749 case AtomicRMWInst::Xor: Out << " xor"; break;
750 case AtomicRMWInst::Max: Out << " max"; break;
751 case AtomicRMWInst::Min: Out << " min"; break;
752 case AtomicRMWInst::UMax: Out << " umax"; break;
753 case AtomicRMWInst::UMin: Out << " umin"; break;
757 static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
758 if (const FPMathOperator *FPO = dyn_cast<const FPMathOperator>(U)) {
759 // Unsafe algebra implies all the others, no need to write them all out
760 if (FPO->hasUnsafeAlgebra())
763 if (FPO->hasNoNaNs())
765 if (FPO->hasNoInfs())
767 if (FPO->hasNoSignedZeros())
769 if (FPO->hasAllowReciprocal())
774 if (const OverflowingBinaryOperator *OBO =
775 dyn_cast<OverflowingBinaryOperator>(U)) {
776 if (OBO->hasNoUnsignedWrap())
778 if (OBO->hasNoSignedWrap())
780 } else if (const PossiblyExactOperator *Div =
781 dyn_cast<PossiblyExactOperator>(U)) {
784 } else if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
785 if (GEP->isInBounds())
790 static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
791 TypePrinting &TypePrinter,
792 SlotTracker *Machine,
793 const Module *Context) {
794 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
795 if (CI->getType()->isIntegerTy(1)) {
796 Out << (CI->getZExtValue() ? "true" : "false");
799 Out << CI->getValue();
803 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
804 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle ||
805 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble) {
806 // We would like to output the FP constant value in exponential notation,
807 // but we cannot do this if doing so will lose precision. Check here to
808 // make sure that we only output it in exponential format if we can parse
809 // the value back and get the same value.
812 bool isHalf = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEhalf;
813 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
814 bool isInf = CFP->getValueAPF().isInfinity();
815 bool isNaN = CFP->getValueAPF().isNaN();
816 if (!isHalf && !isInf && !isNaN) {
817 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
818 CFP->getValueAPF().convertToFloat();
819 SmallString<128> StrVal;
820 raw_svector_ostream(StrVal) << Val;
822 // Check to make sure that the stringized number is not some string like
823 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
824 // that the string matches the "[-+]?[0-9]" regex.
826 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
827 ((StrVal[0] == '-' || StrVal[0] == '+') &&
828 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
829 // Reparse stringized version!
830 if (APFloat(APFloat::IEEEdouble, StrVal).convertToDouble() == Val) {
836 // Otherwise we could not reparse it to exactly the same value, so we must
837 // output the string in hexadecimal format! Note that loading and storing
838 // floating point types changes the bits of NaNs on some hosts, notably
839 // x86, so we must not use these types.
840 assert(sizeof(double) == sizeof(uint64_t) &&
841 "assuming that double is 64 bits!");
843 APFloat apf = CFP->getValueAPF();
844 // Halves and floats are represented in ASCII IR as double, convert.
846 apf.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
849 utohex_buffer(uint64_t(apf.bitcastToAPInt().getZExtValue()),
854 // Either half, or some form of long double.
855 // These appear as a magic letter identifying the type, then a
856 // fixed number of hex digits.
858 // Bit position, in the current word, of the next nibble to print.
861 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended) {
863 // api needed to prevent premature destruction
864 APInt api = CFP->getValueAPF().bitcastToAPInt();
865 const uint64_t* p = api.getRawData();
866 uint64_t word = p[1];
868 int width = api.getBitWidth();
869 for (int j=0; j<width; j+=4, shiftcount-=4) {
870 unsigned int nibble = (word>>shiftcount) & 15;
872 Out << (unsigned char)(nibble + '0');
874 Out << (unsigned char)(nibble - 10 + 'A');
875 if (shiftcount == 0 && j+4 < width) {
879 shiftcount = width-j-4;
883 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad) {
886 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble) {
889 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEhalf) {
893 llvm_unreachable("Unsupported floating point type");
894 // api needed to prevent premature destruction
895 APInt api = CFP->getValueAPF().bitcastToAPInt();
896 const uint64_t* p = api.getRawData();
898 int width = api.getBitWidth();
899 for (int j=0; j<width; j+=4, shiftcount-=4) {
900 unsigned int nibble = (word>>shiftcount) & 15;
902 Out << (unsigned char)(nibble + '0');
904 Out << (unsigned char)(nibble - 10 + 'A');
905 if (shiftcount == 0 && j+4 < width) {
909 shiftcount = width-j-4;
915 if (isa<ConstantAggregateZero>(CV)) {
916 Out << "zeroinitializer";
920 if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
921 Out << "blockaddress(";
922 WriteAsOperandInternal(Out, BA->getFunction(), &TypePrinter, Machine,
925 WriteAsOperandInternal(Out, BA->getBasicBlock(), &TypePrinter, Machine,
931 if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
932 Type *ETy = CA->getType()->getElementType();
934 TypePrinter.print(ETy, Out);
936 WriteAsOperandInternal(Out, CA->getOperand(0),
937 &TypePrinter, Machine,
939 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
941 TypePrinter.print(ETy, Out);
943 WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
950 if (const ConstantDataArray *CA = dyn_cast<ConstantDataArray>(CV)) {
951 // As a special case, print the array as a string if it is an array of
952 // i8 with ConstantInt values.
953 if (CA->isString()) {
955 PrintEscapedString(CA->getAsString(), Out);
960 Type *ETy = CA->getType()->getElementType();
962 TypePrinter.print(ETy, Out);
964 WriteAsOperandInternal(Out, CA->getElementAsConstant(0),
965 &TypePrinter, Machine,
967 for (unsigned i = 1, e = CA->getNumElements(); i != e; ++i) {
969 TypePrinter.print(ETy, Out);
971 WriteAsOperandInternal(Out, CA->getElementAsConstant(i), &TypePrinter,
979 if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
980 if (CS->getType()->isPacked())
983 unsigned N = CS->getNumOperands();
986 TypePrinter.print(CS->getOperand(0)->getType(), Out);
989 WriteAsOperandInternal(Out, CS->getOperand(0), &TypePrinter, Machine,
992 for (unsigned i = 1; i < N; i++) {
994 TypePrinter.print(CS->getOperand(i)->getType(), Out);
997 WriteAsOperandInternal(Out, CS->getOperand(i), &TypePrinter, Machine,
1004 if (CS->getType()->isPacked())
1009 if (isa<ConstantVector>(CV) || isa<ConstantDataVector>(CV)) {
1010 Type *ETy = CV->getType()->getVectorElementType();
1012 TypePrinter.print(ETy, Out);
1014 WriteAsOperandInternal(Out, CV->getAggregateElement(0U), &TypePrinter,
1016 for (unsigned i = 1, e = CV->getType()->getVectorNumElements(); i != e;++i){
1018 TypePrinter.print(ETy, Out);
1020 WriteAsOperandInternal(Out, CV->getAggregateElement(i), &TypePrinter,
1027 if (isa<ConstantPointerNull>(CV)) {
1032 if (isa<UndefValue>(CV)) {
1037 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
1038 Out << CE->getOpcodeName();
1039 WriteOptimizationInfo(Out, CE);
1040 if (CE->isCompare())
1041 Out << ' ' << getPredicateText(CE->getPredicate());
1044 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
1045 TypePrinter.print((*OI)->getType(), Out);
1047 WriteAsOperandInternal(Out, *OI, &TypePrinter, Machine, Context);
1048 if (OI+1 != CE->op_end())
1052 if (CE->hasIndices()) {
1053 ArrayRef<unsigned> Indices = CE->getIndices();
1054 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
1055 Out << ", " << Indices[i];
1060 TypePrinter.print(CE->getType(), Out);
1067 Out << "<placeholder or erroneous Constant>";
1070 static void WriteMDNodeBodyInternal(raw_ostream &Out, const MDNode *Node,
1071 TypePrinting *TypePrinter,
1072 SlotTracker *Machine,
1073 const Module *Context) {
1075 for (unsigned mi = 0, me = Node->getNumOperands(); mi != me; ++mi) {
1076 const Value *V = Node->getOperand(mi);
1080 TypePrinter->print(V->getType(), Out);
1082 WriteAsOperandInternal(Out, Node->getOperand(mi),
1083 TypePrinter, Machine, Context);
1093 /// WriteAsOperand - Write the name of the specified value out to the specified
1094 /// ostream. This can be useful when you just want to print int %reg126, not
1095 /// the whole instruction that generated it.
1097 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
1098 TypePrinting *TypePrinter,
1099 SlotTracker *Machine,
1100 const Module *Context) {
1102 PrintLLVMName(Out, V);
1106 const Constant *CV = dyn_cast<Constant>(V);
1107 if (CV && !isa<GlobalValue>(CV)) {
1108 assert(TypePrinter && "Constants require TypePrinting!");
1109 WriteConstantInternal(Out, CV, *TypePrinter, Machine, Context);
1113 if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
1115 if (IA->hasSideEffects())
1116 Out << "sideeffect ";
1117 if (IA->isAlignStack())
1118 Out << "alignstack ";
1119 // We don't emit the AD_ATT dialect as it's the assumed default.
1120 if (IA->getDialect() == InlineAsm::AD_Intel)
1121 Out << "inteldialect ";
1123 PrintEscapedString(IA->getAsmString(), Out);
1125 PrintEscapedString(IA->getConstraintString(), Out);
1130 if (const MDNode *N = dyn_cast<MDNode>(V)) {
1131 if (N->isFunctionLocal()) {
1132 // Print metadata inline, not via slot reference number.
1133 WriteMDNodeBodyInternal(Out, N, TypePrinter, Machine, Context);
1138 if (N->isFunctionLocal())
1139 Machine = new SlotTracker(N->getFunction());
1141 Machine = new SlotTracker(Context);
1143 int Slot = Machine->getMetadataSlot(N);
1151 if (const MDString *MDS = dyn_cast<MDString>(V)) {
1153 PrintEscapedString(MDS->getString(), Out);
1158 if (V->getValueID() == Value::PseudoSourceValueVal ||
1159 V->getValueID() == Value::FixedStackPseudoSourceValueVal) {
1166 // If we have a SlotTracker, use it.
1168 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1169 Slot = Machine->getGlobalSlot(GV);
1172 Slot = Machine->getLocalSlot(V);
1174 // If the local value didn't succeed, then we may be referring to a value
1175 // from a different function. Translate it, as this can happen when using
1176 // address of blocks.
1178 if ((Machine = createSlotTracker(V))) {
1179 Slot = Machine->getLocalSlot(V);
1183 } else if ((Machine = createSlotTracker(V))) {
1184 // Otherwise, create one to get the # and then destroy it.
1185 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1186 Slot = Machine->getGlobalSlot(GV);
1189 Slot = Machine->getLocalSlot(V);
1198 Out << Prefix << Slot;
1203 void llvm::WriteAsOperand(raw_ostream &Out, const Value *V,
1204 bool PrintType, const Module *Context) {
1206 // Fast path: Don't construct and populate a TypePrinting object if we
1207 // won't be needing any types printed.
1209 ((!isa<Constant>(V) && !isa<MDNode>(V)) ||
1210 V->hasName() || isa<GlobalValue>(V))) {
1211 WriteAsOperandInternal(Out, V, 0, 0, Context);
1215 if (Context == 0) Context = getModuleFromVal(V);
1217 TypePrinting TypePrinter;
1219 TypePrinter.incorporateTypes(*Context);
1221 TypePrinter.print(V->getType(), Out);
1225 WriteAsOperandInternal(Out, V, &TypePrinter, 0, Context);
1230 class AssemblyWriter {
1231 formatted_raw_ostream &Out;
1232 SlotTracker &Machine;
1233 const Module *TheModule;
1234 TypePrinting TypePrinter;
1235 AssemblyAnnotationWriter *AnnotationWriter;
1238 inline AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
1240 AssemblyAnnotationWriter *AAW)
1241 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
1243 TypePrinter.incorporateTypes(*M);
1246 void printMDNodeBody(const MDNode *MD);
1247 void printNamedMDNode(const NamedMDNode *NMD);
1249 void printModule(const Module *M);
1251 void writeOperand(const Value *Op, bool PrintType);
1252 void writeParamOperand(const Value *Operand, AttributeSet Attrs,unsigned Idx);
1253 void writeAtomic(AtomicOrdering Ordering, SynchronizationScope SynchScope);
1255 void writeAllMDNodes();
1256 void writeAllAttributeGroups();
1258 void printTypeIdentities();
1259 void printGlobal(const GlobalVariable *GV);
1260 void printAlias(const GlobalAlias *GV);
1261 void printFunction(const Function *F);
1262 void printArgument(const Argument *FA, AttributeSet Attrs, unsigned Idx);
1263 void printBasicBlock(const BasicBlock *BB);
1264 void printInstruction(const Instruction &I);
1267 // printInfoComment - Print a little comment after the instruction indicating
1268 // which slot it occupies.
1269 void printInfoComment(const Value &V);
1271 } // end of anonymous namespace
1273 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
1275 Out << "<null operand!>";
1279 TypePrinter.print(Operand->getType(), Out);
1282 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1285 void AssemblyWriter::writeAtomic(AtomicOrdering Ordering,
1286 SynchronizationScope SynchScope) {
1287 if (Ordering == NotAtomic)
1290 switch (SynchScope) {
1291 case SingleThread: Out << " singlethread"; break;
1292 case CrossThread: break;
1296 default: Out << " <bad ordering " << int(Ordering) << ">"; break;
1297 case Unordered: Out << " unordered"; break;
1298 case Monotonic: Out << " monotonic"; break;
1299 case Acquire: Out << " acquire"; break;
1300 case Release: Out << " release"; break;
1301 case AcquireRelease: Out << " acq_rel"; break;
1302 case SequentiallyConsistent: Out << " seq_cst"; break;
1306 void AssemblyWriter::writeParamOperand(const Value *Operand,
1307 AttributeSet Attrs, unsigned Idx) {
1309 Out << "<null operand!>";
1314 TypePrinter.print(Operand->getType(), Out);
1315 // Print parameter attributes list
1316 if (Attrs.hasAttributes(Idx))
1317 Out << ' ' << Attrs.getAsString(Idx);
1319 // Print the operand
1320 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1323 void AssemblyWriter::printModule(const Module *M) {
1324 Machine.initialize();
1326 if (!M->getModuleIdentifier().empty() &&
1327 // Don't print the ID if it will start a new line (which would
1328 // require a comment char before it).
1329 M->getModuleIdentifier().find('\n') == std::string::npos)
1330 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
1332 if (!M->getDataLayout().empty())
1333 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
1334 if (!M->getTargetTriple().empty())
1335 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
1337 if (!M->getModuleInlineAsm().empty()) {
1338 // Split the string into lines, to make it easier to read the .ll file.
1339 std::string Asm = M->getModuleInlineAsm();
1341 size_t NewLine = Asm.find_first_of('\n', CurPos);
1343 while (NewLine != std::string::npos) {
1344 // We found a newline, print the portion of the asm string from the
1345 // last newline up to this newline.
1346 Out << "module asm \"";
1347 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
1351 NewLine = Asm.find_first_of('\n', CurPos);
1353 std::string rest(Asm.begin()+CurPos, Asm.end());
1354 if (!rest.empty()) {
1355 Out << "module asm \"";
1356 PrintEscapedString(rest, Out);
1361 printTypeIdentities();
1363 // Output all globals.
1364 if (!M->global_empty()) Out << '\n';
1365 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
1367 printGlobal(I); Out << '\n';
1370 // Output all aliases.
1371 if (!M->alias_empty()) Out << "\n";
1372 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
1376 // Output all of the functions.
1377 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
1380 // Output all attribute groups.
1381 if (!Machine.as_empty()) {
1383 writeAllAttributeGroups();
1386 // Output named metadata.
1387 if (!M->named_metadata_empty()) Out << '\n';
1389 for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
1390 E = M->named_metadata_end(); I != E; ++I)
1391 printNamedMDNode(I);
1394 if (!Machine.mdn_empty()) {
1400 void AssemblyWriter::printNamedMDNode(const NamedMDNode *NMD) {
1402 StringRef Name = NMD->getName();
1404 Out << "<empty name> ";
1406 if (isalpha(static_cast<unsigned char>(Name[0])) ||
1407 Name[0] == '-' || Name[0] == '$' ||
1408 Name[0] == '.' || Name[0] == '_')
1411 Out << '\\' << hexdigit(Name[0] >> 4) << hexdigit(Name[0] & 0x0F);
1412 for (unsigned i = 1, e = Name.size(); i != e; ++i) {
1413 unsigned char C = Name[i];
1414 if (isalnum(static_cast<unsigned char>(C)) || C == '-' || C == '$' ||
1415 C == '.' || C == '_')
1418 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
1422 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
1424 int Slot = Machine.getMetadataSlot(NMD->getOperand(i));
1434 static void PrintLinkage(GlobalValue::LinkageTypes LT,
1435 formatted_raw_ostream &Out) {
1437 case GlobalValue::ExternalLinkage: break;
1438 case GlobalValue::PrivateLinkage: Out << "private "; break;
1439 case GlobalValue::LinkerPrivateLinkage: Out << "linker_private "; break;
1440 case GlobalValue::LinkerPrivateWeakLinkage:
1441 Out << "linker_private_weak ";
1443 case GlobalValue::InternalLinkage: Out << "internal "; break;
1444 case GlobalValue::LinkOnceAnyLinkage: Out << "linkonce "; break;
1445 case GlobalValue::LinkOnceODRLinkage: Out << "linkonce_odr "; break;
1446 case GlobalValue::LinkOnceODRAutoHideLinkage:
1447 Out << "linkonce_odr_auto_hide ";
1449 case GlobalValue::WeakAnyLinkage: Out << "weak "; break;
1450 case GlobalValue::WeakODRLinkage: Out << "weak_odr "; break;
1451 case GlobalValue::CommonLinkage: Out << "common "; break;
1452 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1453 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1454 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1455 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1456 case GlobalValue::AvailableExternallyLinkage:
1457 Out << "available_externally ";
1463 static void PrintVisibility(GlobalValue::VisibilityTypes Vis,
1464 formatted_raw_ostream &Out) {
1466 case GlobalValue::DefaultVisibility: break;
1467 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1468 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1472 static void PrintThreadLocalModel(GlobalVariable::ThreadLocalMode TLM,
1473 formatted_raw_ostream &Out) {
1475 case GlobalVariable::NotThreadLocal:
1477 case GlobalVariable::GeneralDynamicTLSModel:
1478 Out << "thread_local ";
1480 case GlobalVariable::LocalDynamicTLSModel:
1481 Out << "thread_local(localdynamic) ";
1483 case GlobalVariable::InitialExecTLSModel:
1484 Out << "thread_local(initialexec) ";
1486 case GlobalVariable::LocalExecTLSModel:
1487 Out << "thread_local(localexec) ";
1492 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
1493 if (GV->isMaterializable())
1494 Out << "; Materializable\n";
1496 WriteAsOperandInternal(Out, GV, &TypePrinter, &Machine, GV->getParent());
1499 if (!GV->hasInitializer() && GV->hasExternalLinkage())
1502 PrintLinkage(GV->getLinkage(), Out);
1503 PrintVisibility(GV->getVisibility(), Out);
1504 PrintThreadLocalModel(GV->getThreadLocalMode(), Out);
1506 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1507 Out << "addrspace(" << AddressSpace << ") ";
1508 if (GV->hasUnnamedAddr()) Out << "unnamed_addr ";
1509 if (GV->isExternallyInitialized()) Out << "externally_initialized ";
1510 Out << (GV->isConstant() ? "constant " : "global ");
1511 TypePrinter.print(GV->getType()->getElementType(), Out);
1513 if (GV->hasInitializer()) {
1515 writeOperand(GV->getInitializer(), false);
1518 if (GV->hasSection()) {
1519 Out << ", section \"";
1520 PrintEscapedString(GV->getSection(), Out);
1523 if (GV->getAlignment())
1524 Out << ", align " << GV->getAlignment();
1526 printInfoComment(*GV);
1529 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1530 if (GA->isMaterializable())
1531 Out << "; Materializable\n";
1533 // Don't crash when dumping partially built GA
1535 Out << "<<nameless>> = ";
1537 PrintLLVMName(Out, GA);
1540 PrintVisibility(GA->getVisibility(), Out);
1544 PrintLinkage(GA->getLinkage(), Out);
1546 const Constant *Aliasee = GA->getAliasee();
1549 TypePrinter.print(GA->getType(), Out);
1550 Out << " <<NULL ALIASEE>>";
1552 writeOperand(Aliasee, !isa<ConstantExpr>(Aliasee));
1555 printInfoComment(*GA);
1559 void AssemblyWriter::printTypeIdentities() {
1560 if (TypePrinter.NumberedTypes.empty() &&
1561 TypePrinter.NamedTypes.empty())
1566 // We know all the numbers that each type is used and we know that it is a
1567 // dense assignment. Convert the map to an index table.
1568 std::vector<StructType*> NumberedTypes(TypePrinter.NumberedTypes.size());
1569 for (DenseMap<StructType*, unsigned>::iterator I =
1570 TypePrinter.NumberedTypes.begin(), E = TypePrinter.NumberedTypes.end();
1572 assert(I->second < NumberedTypes.size() && "Didn't get a dense numbering?");
1573 NumberedTypes[I->second] = I->first;
1576 // Emit all numbered types.
1577 for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i) {
1578 Out << '%' << i << " = type ";
1580 // Make sure we print out at least one level of the type structure, so
1581 // that we do not get %2 = type %2
1582 TypePrinter.printStructBody(NumberedTypes[i], Out);
1586 for (unsigned i = 0, e = TypePrinter.NamedTypes.size(); i != e; ++i) {
1587 PrintLLVMName(Out, TypePrinter.NamedTypes[i]->getName(), LocalPrefix);
1590 // Make sure we print out at least one level of the type structure, so
1591 // that we do not get %FILE = type %FILE
1592 TypePrinter.printStructBody(TypePrinter.NamedTypes[i], Out);
1597 /// printFunction - Print all aspects of a function.
1599 void AssemblyWriter::printFunction(const Function *F) {
1600 // Print out the return type and name.
1603 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1605 if (F->isMaterializable())
1606 Out << "; Materializable\n";
1608 const AttributeSet &Attrs = F->getAttributes();
1609 if (Attrs.hasAttributes(AttributeSet::FunctionIndex)) {
1610 AttributeSet AS = Attrs.getFnAttributes();
1611 std::string AttrStr;
1614 for (unsigned E = AS.getNumSlots(); Idx != E; ++Idx)
1615 if (AS.getSlotIndex(Idx) == AttributeSet::FunctionIndex)
1618 for (AttributeSet::iterator I = AS.begin(Idx), E = AS.end(Idx);
1620 Attribute Attr = *I;
1621 if (!Attr.isStringAttribute()) {
1622 if (!AttrStr.empty()) AttrStr += ' ';
1623 AttrStr += Attr.getAsString();
1627 if (!AttrStr.empty())
1628 Out << "; Function Attrs: " << AttrStr << '\n';
1631 if (F->isDeclaration())
1636 PrintLinkage(F->getLinkage(), Out);
1637 PrintVisibility(F->getVisibility(), Out);
1639 // Print the calling convention.
1640 if (F->getCallingConv() != CallingConv::C) {
1641 PrintCallingConv(F->getCallingConv(), Out);
1645 FunctionType *FT = F->getFunctionType();
1646 if (Attrs.hasAttributes(AttributeSet::ReturnIndex))
1647 Out << Attrs.getAsString(AttributeSet::ReturnIndex) << ' ';
1648 TypePrinter.print(F->getReturnType(), Out);
1650 WriteAsOperandInternal(Out, F, &TypePrinter, &Machine, F->getParent());
1652 Machine.incorporateFunction(F);
1654 // Loop over the arguments, printing them...
1657 if (!F->isDeclaration()) {
1658 // If this isn't a declaration, print the argument names as well.
1659 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1661 // Insert commas as we go... the first arg doesn't get a comma
1662 if (I != F->arg_begin()) Out << ", ";
1663 printArgument(I, Attrs, Idx);
1667 // Otherwise, print the types from the function type.
1668 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1669 // Insert commas as we go... the first arg doesn't get a comma
1673 TypePrinter.print(FT->getParamType(i), Out);
1675 if (Attrs.hasAttributes(i+1))
1676 Out << ' ' << Attrs.getAsString(i+1);
1680 // Finish printing arguments...
1681 if (FT->isVarArg()) {
1682 if (FT->getNumParams()) Out << ", ";
1683 Out << "..."; // Output varargs portion of signature!
1686 if (F->hasUnnamedAddr())
1687 Out << " unnamed_addr";
1688 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
1689 Out << " #" << Machine.getAttributeGroupSlot(Attrs.getFnAttributes());
1690 if (F->hasSection()) {
1691 Out << " section \"";
1692 PrintEscapedString(F->getSection(), Out);
1695 if (F->getAlignment())
1696 Out << " align " << F->getAlignment();
1698 Out << " gc \"" << F->getGC() << '"';
1699 if (F->isDeclaration()) {
1703 // Output all of the function's basic blocks.
1704 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1710 Machine.purgeFunction();
1713 /// printArgument - This member is called for every argument that is passed into
1714 /// the function. Simply print it out
1716 void AssemblyWriter::printArgument(const Argument *Arg,
1717 AttributeSet Attrs, unsigned Idx) {
1719 TypePrinter.print(Arg->getType(), Out);
1721 // Output parameter attributes list
1722 if (Attrs.hasAttributes(Idx))
1723 Out << ' ' << Attrs.getAsString(Idx);
1725 // Output name, if available...
1726 if (Arg->hasName()) {
1728 PrintLLVMName(Out, Arg);
1732 /// printBasicBlock - This member is called for each basic block in a method.
1734 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1735 if (BB->hasName()) { // Print out the label if it exists...
1737 PrintLLVMName(Out, BB->getName(), LabelPrefix);
1739 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1740 Out << "\n; <label>:";
1741 int Slot = Machine.getLocalSlot(BB);
1748 if (BB->getParent() == 0) {
1749 Out.PadToColumn(50);
1750 Out << "; Error: Block without parent!";
1751 } else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1752 // Output predecessors for the block.
1753 Out.PadToColumn(50);
1755 const_pred_iterator PI = pred_begin(BB), PE = pred_end(BB);
1758 Out << " No predecessors!";
1761 writeOperand(*PI, false);
1762 for (++PI; PI != PE; ++PI) {
1764 writeOperand(*PI, false);
1771 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1773 // Output all of the instructions in the basic block...
1774 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
1775 printInstruction(*I);
1779 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1782 /// printInfoComment - Print a little comment after the instruction indicating
1783 /// which slot it occupies.
1785 void AssemblyWriter::printInfoComment(const Value &V) {
1786 if (AnnotationWriter)
1787 AnnotationWriter->printInfoComment(V, Out);
1790 // This member is called for each Instruction in a function..
1791 void AssemblyWriter::printInstruction(const Instruction &I) {
1792 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1794 // Print out indentation for an instruction.
1797 // Print out name if it exists...
1799 PrintLLVMName(Out, &I);
1801 } else if (!I.getType()->isVoidTy()) {
1802 // Print out the def slot taken.
1803 int SlotNum = Machine.getLocalSlot(&I);
1805 Out << "<badref> = ";
1807 Out << '%' << SlotNum << " = ";
1810 if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall())
1813 // Print out the opcode...
1814 Out << I.getOpcodeName();
1816 // If this is an atomic load or store, print out the atomic marker.
1817 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isAtomic()) ||
1818 (isa<StoreInst>(I) && cast<StoreInst>(I).isAtomic()))
1821 // If this is a volatile operation, print out the volatile marker.
1822 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1823 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile()) ||
1824 (isa<AtomicCmpXchgInst>(I) && cast<AtomicCmpXchgInst>(I).isVolatile()) ||
1825 (isa<AtomicRMWInst>(I) && cast<AtomicRMWInst>(I).isVolatile()))
1828 // Print out optimization information.
1829 WriteOptimizationInfo(Out, &I);
1831 // Print out the compare instruction predicates
1832 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1833 Out << ' ' << getPredicateText(CI->getPredicate());
1835 // Print out the atomicrmw operation
1836 if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I))
1837 writeAtomicRMWOperation(Out, RMWI->getOperation());
1839 // Print out the type of the operands...
1840 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1842 // Special case conditional branches to swizzle the condition out to the front
1843 if (isa<BranchInst>(I) && cast<BranchInst>(I).isConditional()) {
1844 const BranchInst &BI(cast<BranchInst>(I));
1846 writeOperand(BI.getCondition(), true);
1848 writeOperand(BI.getSuccessor(0), true);
1850 writeOperand(BI.getSuccessor(1), true);
1852 } else if (isa<SwitchInst>(I)) {
1853 const SwitchInst& SI(cast<SwitchInst>(I));
1854 // Special case switch instruction to get formatting nice and correct.
1856 writeOperand(SI.getCondition(), true);
1858 writeOperand(SI.getDefaultDest(), true);
1860 for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end();
1863 writeOperand(i.getCaseValue(), true);
1865 writeOperand(i.getCaseSuccessor(), true);
1868 } else if (isa<IndirectBrInst>(I)) {
1869 // Special case indirectbr instruction to get formatting nice and correct.
1871 writeOperand(Operand, true);
1874 for (unsigned i = 1, e = I.getNumOperands(); i != e; ++i) {
1877 writeOperand(I.getOperand(i), true);
1880 } else if (const PHINode *PN = dyn_cast<PHINode>(&I)) {
1882 TypePrinter.print(I.getType(), Out);
1885 for (unsigned op = 0, Eop = PN->getNumIncomingValues(); op < Eop; ++op) {
1886 if (op) Out << ", ";
1888 writeOperand(PN->getIncomingValue(op), false); Out << ", ";
1889 writeOperand(PN->getIncomingBlock(op), false); Out << " ]";
1891 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1893 writeOperand(I.getOperand(0), true);
1894 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1896 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1898 writeOperand(I.getOperand(0), true); Out << ", ";
1899 writeOperand(I.getOperand(1), true);
1900 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1902 } else if (const LandingPadInst *LPI = dyn_cast<LandingPadInst>(&I)) {
1904 TypePrinter.print(I.getType(), Out);
1905 Out << " personality ";
1906 writeOperand(I.getOperand(0), true); Out << '\n';
1908 if (LPI->isCleanup())
1911 for (unsigned i = 0, e = LPI->getNumClauses(); i != e; ++i) {
1912 if (i != 0 || LPI->isCleanup()) Out << "\n";
1913 if (LPI->isCatch(i))
1918 writeOperand(LPI->getClause(i), true);
1920 } else if (isa<ReturnInst>(I) && !Operand) {
1922 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1923 // Print the calling convention being used.
1924 if (CI->getCallingConv() != CallingConv::C) {
1926 PrintCallingConv(CI->getCallingConv(), Out);
1929 Operand = CI->getCalledValue();
1930 PointerType *PTy = cast<PointerType>(Operand->getType());
1931 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1932 Type *RetTy = FTy->getReturnType();
1933 const AttributeSet &PAL = CI->getAttributes();
1935 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1936 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1938 // If possible, print out the short form of the call instruction. We can
1939 // only do this if the first argument is a pointer to a nonvararg function,
1940 // and if the return type is not a pointer to a function.
1943 if (!FTy->isVarArg() &&
1944 (!RetTy->isPointerTy() ||
1945 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1946 TypePrinter.print(RetTy, Out);
1948 writeOperand(Operand, false);
1950 writeOperand(Operand, true);
1953 for (unsigned op = 0, Eop = CI->getNumArgOperands(); op < Eop; ++op) {
1956 writeParamOperand(CI->getArgOperand(op), PAL, op + 1);
1959 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1960 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
1961 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1962 Operand = II->getCalledValue();
1963 PointerType *PTy = cast<PointerType>(Operand->getType());
1964 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1965 Type *RetTy = FTy->getReturnType();
1966 const AttributeSet &PAL = II->getAttributes();
1968 // Print the calling convention being used.
1969 if (II->getCallingConv() != CallingConv::C) {
1971 PrintCallingConv(II->getCallingConv(), Out);
1974 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1975 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1977 // If possible, print out the short form of the invoke instruction. We can
1978 // only do this if the first argument is a pointer to a nonvararg function,
1979 // and if the return type is not a pointer to a function.
1982 if (!FTy->isVarArg() &&
1983 (!RetTy->isPointerTy() ||
1984 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1985 TypePrinter.print(RetTy, Out);
1987 writeOperand(Operand, false);
1989 writeOperand(Operand, true);
1992 for (unsigned op = 0, Eop = II->getNumArgOperands(); op < Eop; ++op) {
1995 writeParamOperand(II->getArgOperand(op), PAL, op + 1);
1999 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
2000 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
2003 writeOperand(II->getNormalDest(), true);
2005 writeOperand(II->getUnwindDest(), true);
2007 } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
2009 TypePrinter.print(AI->getAllocatedType(), Out);
2010 if (!AI->getArraySize() || AI->isArrayAllocation()) {
2012 writeOperand(AI->getArraySize(), true);
2014 if (AI->getAlignment()) {
2015 Out << ", align " << AI->getAlignment();
2017 } else if (isa<CastInst>(I)) {
2020 writeOperand(Operand, true); // Work with broken code
2023 TypePrinter.print(I.getType(), Out);
2024 } else if (isa<VAArgInst>(I)) {
2027 writeOperand(Operand, true); // Work with broken code
2030 TypePrinter.print(I.getType(), Out);
2031 } else if (Operand) { // Print the normal way.
2033 // PrintAllTypes - Instructions who have operands of all the same type
2034 // omit the type from all but the first operand. If the instruction has
2035 // different type operands (for example br), then they are all printed.
2036 bool PrintAllTypes = false;
2037 Type *TheType = Operand->getType();
2039 // Select, Store and ShuffleVector always print all types.
2040 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
2041 || isa<ReturnInst>(I)) {
2042 PrintAllTypes = true;
2044 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
2045 Operand = I.getOperand(i);
2046 // note that Operand shouldn't be null, but the test helps make dump()
2047 // more tolerant of malformed IR
2048 if (Operand && Operand->getType() != TheType) {
2049 PrintAllTypes = true; // We have differing types! Print them all!
2055 if (!PrintAllTypes) {
2057 TypePrinter.print(TheType, Out);
2061 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
2063 writeOperand(I.getOperand(i), PrintAllTypes);
2067 // Print atomic ordering/alignment for memory operations
2068 if (const LoadInst *LI = dyn_cast<LoadInst>(&I)) {
2070 writeAtomic(LI->getOrdering(), LI->getSynchScope());
2071 if (LI->getAlignment())
2072 Out << ", align " << LI->getAlignment();
2073 } else if (const StoreInst *SI = dyn_cast<StoreInst>(&I)) {
2075 writeAtomic(SI->getOrdering(), SI->getSynchScope());
2076 if (SI->getAlignment())
2077 Out << ", align " << SI->getAlignment();
2078 } else if (const AtomicCmpXchgInst *CXI = dyn_cast<AtomicCmpXchgInst>(&I)) {
2079 writeAtomic(CXI->getOrdering(), CXI->getSynchScope());
2080 } else if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I)) {
2081 writeAtomic(RMWI->getOrdering(), RMWI->getSynchScope());
2082 } else if (const FenceInst *FI = dyn_cast<FenceInst>(&I)) {
2083 writeAtomic(FI->getOrdering(), FI->getSynchScope());
2086 // Print Metadata info.
2087 SmallVector<std::pair<unsigned, MDNode*>, 4> InstMD;
2088 I.getAllMetadata(InstMD);
2089 if (!InstMD.empty()) {
2090 SmallVector<StringRef, 8> MDNames;
2091 I.getType()->getContext().getMDKindNames(MDNames);
2092 for (unsigned i = 0, e = InstMD.size(); i != e; ++i) {
2093 unsigned Kind = InstMD[i].first;
2094 if (Kind < MDNames.size()) {
2095 Out << ", !" << MDNames[Kind];
2097 Out << ", !<unknown kind #" << Kind << ">";
2100 WriteAsOperandInternal(Out, InstMD[i].second, &TypePrinter, &Machine,
2104 printInfoComment(I);
2107 static void WriteMDNodeComment(const MDNode *Node,
2108 formatted_raw_ostream &Out) {
2109 if (Node->getNumOperands() < 1)
2112 Value *Op = Node->getOperand(0);
2113 if (!Op || !isa<ConstantInt>(Op) || cast<ConstantInt>(Op)->getBitWidth() < 32)
2116 DIDescriptor Desc(Node);
2120 unsigned Tag = Desc.getTag();
2121 Out.PadToColumn(50);
2122 if (dwarf::TagString(Tag)) {
2125 } else if (Tag == dwarf::DW_TAG_user_base) {
2126 Out << "; [ DW_TAG_user_base ]";
2130 void AssemblyWriter::writeAllMDNodes() {
2131 SmallVector<const MDNode *, 16> Nodes;
2132 Nodes.resize(Machine.mdn_size());
2133 for (SlotTracker::mdn_iterator I = Machine.mdn_begin(), E = Machine.mdn_end();
2135 Nodes[I->second] = cast<MDNode>(I->first);
2137 for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
2138 Out << '!' << i << " = metadata ";
2139 printMDNodeBody(Nodes[i]);
2143 void AssemblyWriter::printMDNodeBody(const MDNode *Node) {
2144 WriteMDNodeBodyInternal(Out, Node, &TypePrinter, &Machine, TheModule);
2145 WriteMDNodeComment(Node, Out);
2149 void AssemblyWriter::writeAllAttributeGroups() {
2150 std::vector<std::pair<AttributeSet, unsigned> > asVec;
2151 asVec.resize(Machine.as_size());
2153 for (SlotTracker::as_iterator I = Machine.as_begin(), E = Machine.as_end();
2155 asVec[I->second] = *I;
2157 for (std::vector<std::pair<AttributeSet, unsigned> >::iterator
2158 I = asVec.begin(), E = asVec.end(); I != E; ++I)
2159 Out << "attributes #" << I->second << " = { "
2160 << I->first.getAsString(AttributeSet::FunctionIndex, true) << " }\n";
2163 //===----------------------------------------------------------------------===//
2164 // External Interface declarations
2165 //===----------------------------------------------------------------------===//
2167 void Module::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2168 SlotTracker SlotTable(this);
2169 formatted_raw_ostream OS(ROS);
2170 AssemblyWriter W(OS, SlotTable, this, AAW);
2171 W.printModule(this);
2174 void NamedMDNode::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2175 SlotTracker SlotTable(getParent());
2176 formatted_raw_ostream OS(ROS);
2177 AssemblyWriter W(OS, SlotTable, getParent(), AAW);
2178 W.printNamedMDNode(this);
2181 void Type::print(raw_ostream &OS) const {
2183 OS << "<null Type>";
2187 TP.print(const_cast<Type*>(this), OS);
2189 // If the type is a named struct type, print the body as well.
2190 if (StructType *STy = dyn_cast<StructType>(const_cast<Type*>(this)))
2191 if (!STy->isLiteral()) {
2193 TP.printStructBody(STy, OS);
2197 void Value::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2199 ROS << "printing a <null> value\n";
2202 formatted_raw_ostream OS(ROS);
2203 if (const Instruction *I = dyn_cast<Instruction>(this)) {
2204 const Function *F = I->getParent() ? I->getParent()->getParent() : 0;
2205 SlotTracker SlotTable(F);
2206 AssemblyWriter W(OS, SlotTable, getModuleFromVal(I), AAW);
2207 W.printInstruction(*I);
2208 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(this)) {
2209 SlotTracker SlotTable(BB->getParent());
2210 AssemblyWriter W(OS, SlotTable, getModuleFromVal(BB), AAW);
2211 W.printBasicBlock(BB);
2212 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(this)) {
2213 SlotTracker SlotTable(GV->getParent());
2214 AssemblyWriter W(OS, SlotTable, GV->getParent(), AAW);
2215 if (const GlobalVariable *V = dyn_cast<GlobalVariable>(GV))
2217 else if (const Function *F = dyn_cast<Function>(GV))
2220 W.printAlias(cast<GlobalAlias>(GV));
2221 } else if (const MDNode *N = dyn_cast<MDNode>(this)) {
2222 const Function *F = N->getFunction();
2223 SlotTracker SlotTable(F);
2224 AssemblyWriter W(OS, SlotTable, F ? F->getParent() : 0, AAW);
2225 W.printMDNodeBody(N);
2226 } else if (const Constant *C = dyn_cast<Constant>(this)) {
2227 TypePrinting TypePrinter;
2228 TypePrinter.print(C->getType(), OS);
2230 WriteConstantInternal(OS, C, TypePrinter, 0, 0);
2231 } else if (isa<InlineAsm>(this) || isa<MDString>(this) ||
2232 isa<Argument>(this)) {
2233 WriteAsOperand(OS, this, true, 0);
2235 // Otherwise we don't know what it is. Call the virtual function to
2236 // allow a subclass to print itself.
2241 // Value::printCustom - subclasses should override this to implement printing.
2242 void Value::printCustom(raw_ostream &OS) const {
2243 llvm_unreachable("Unknown value to print out!");
2246 // Value::dump - allow easy printing of Values from the debugger.
2247 void Value::dump() const { print(dbgs()); dbgs() << '\n'; }
2249 // Type::dump - allow easy printing of Types from the debugger.
2250 void Type::dump() const { print(dbgs()); }
2252 // Module::dump() - Allow printing of Modules from the debugger.
2253 void Module::dump() const { print(dbgs(), 0); }
2255 // NamedMDNode::dump() - Allow printing of NamedMDNodes from the debugger.
2256 void NamedMDNode::dump() const { print(dbgs(), 0); }