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. This is important for
558 // inline ASM, which may have attributes but no declaration.
559 if (CI->isInlineAsm()) {
560 AttributeSet Attrs = CI->getAttributes().getFnAttributes();
561 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
562 CreateAttributeSetSlot(Attrs);
566 // Process metadata attached with this instruction.
567 I->getAllMetadata(MDForInst);
568 for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
569 CreateMetadataSlot(MDForInst[i].second);
574 FunctionProcessed = true;
576 ST_DEBUG("end processFunction!\n");
579 /// Clean up after incorporating a function. This is the only way to get out of
580 /// the function incorporation state that affects get*Slot/Create*Slot. Function
581 /// incorporation state is indicated by TheFunction != 0.
582 void SlotTracker::purgeFunction() {
583 ST_DEBUG("begin purgeFunction!\n");
584 fMap.clear(); // Simply discard the function level map
586 FunctionProcessed = false;
587 ST_DEBUG("end purgeFunction!\n");
590 /// getGlobalSlot - Get the slot number of a global value.
591 int SlotTracker::getGlobalSlot(const GlobalValue *V) {
592 // Check for uninitialized state and do lazy initialization.
595 // Find the value in the module map
596 ValueMap::iterator MI = mMap.find(V);
597 return MI == mMap.end() ? -1 : (int)MI->second;
600 /// getMetadataSlot - Get the slot number of a MDNode.
601 int SlotTracker::getMetadataSlot(const MDNode *N) {
602 // Check for uninitialized state and do lazy initialization.
605 // Find the MDNode in the module map
606 mdn_iterator MI = mdnMap.find(N);
607 return MI == mdnMap.end() ? -1 : (int)MI->second;
611 /// getLocalSlot - Get the slot number for a value that is local to a function.
612 int SlotTracker::getLocalSlot(const Value *V) {
613 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
615 // Check for uninitialized state and do lazy initialization.
618 ValueMap::iterator FI = fMap.find(V);
619 return FI == fMap.end() ? -1 : (int)FI->second;
622 int SlotTracker::getAttributeGroupSlot(AttributeSet AS) {
623 // Check for uninitialized state and do lazy initialization.
626 // Find the AttributeSet in the module map.
627 as_iterator AI = asMap.find(AS);
628 return AI == asMap.end() ? -1 : (int)AI->second;
631 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
632 void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
633 assert(V && "Can't insert a null Value into SlotTracker!");
634 assert(!V->getType()->isVoidTy() && "Doesn't need a slot!");
635 assert(!V->hasName() && "Doesn't need a slot!");
637 unsigned DestSlot = mNext++;
640 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
642 // G = Global, F = Function, A = Alias, o = other
643 ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
644 (isa<Function>(V) ? 'F' :
645 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
648 /// CreateSlot - Create a new slot for the specified value if it has no name.
649 void SlotTracker::CreateFunctionSlot(const Value *V) {
650 assert(!V->getType()->isVoidTy() && !V->hasName() && "Doesn't need a slot!");
652 unsigned DestSlot = fNext++;
655 // G = Global, F = Function, o = other
656 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
657 DestSlot << " [o]\n");
660 /// CreateModuleSlot - Insert the specified MDNode* into the slot table.
661 void SlotTracker::CreateMetadataSlot(const MDNode *N) {
662 assert(N && "Can't insert a null Value into SlotTracker!");
664 // Don't insert if N is a function-local metadata, these are always printed
666 if (!N->isFunctionLocal()) {
667 mdn_iterator I = mdnMap.find(N);
668 if (I != mdnMap.end())
671 unsigned DestSlot = mdnNext++;
672 mdnMap[N] = DestSlot;
675 // Recursively add any MDNodes referenced by operands.
676 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
677 if (const MDNode *Op = dyn_cast_or_null<MDNode>(N->getOperand(i)))
678 CreateMetadataSlot(Op);
681 void SlotTracker::CreateAttributeSetSlot(AttributeSet AS) {
682 assert(AS.hasAttributes(AttributeSet::FunctionIndex) &&
683 "Doesn't need a slot!");
685 as_iterator I = asMap.find(AS);
686 if (I != asMap.end())
689 unsigned DestSlot = asNext++;
690 asMap[AS] = DestSlot;
693 //===----------------------------------------------------------------------===//
694 // AsmWriter Implementation
695 //===----------------------------------------------------------------------===//
697 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
698 TypePrinting *TypePrinter,
699 SlotTracker *Machine,
700 const Module *Context);
704 static const char *getPredicateText(unsigned predicate) {
705 const char * pred = "unknown";
707 case FCmpInst::FCMP_FALSE: pred = "false"; break;
708 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
709 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
710 case FCmpInst::FCMP_OGE: pred = "oge"; break;
711 case FCmpInst::FCMP_OLT: pred = "olt"; break;
712 case FCmpInst::FCMP_OLE: pred = "ole"; break;
713 case FCmpInst::FCMP_ONE: pred = "one"; break;
714 case FCmpInst::FCMP_ORD: pred = "ord"; break;
715 case FCmpInst::FCMP_UNO: pred = "uno"; break;
716 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
717 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
718 case FCmpInst::FCMP_UGE: pred = "uge"; break;
719 case FCmpInst::FCMP_ULT: pred = "ult"; break;
720 case FCmpInst::FCMP_ULE: pred = "ule"; break;
721 case FCmpInst::FCMP_UNE: pred = "une"; break;
722 case FCmpInst::FCMP_TRUE: pred = "true"; break;
723 case ICmpInst::ICMP_EQ: pred = "eq"; break;
724 case ICmpInst::ICMP_NE: pred = "ne"; break;
725 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
726 case ICmpInst::ICMP_SGE: pred = "sge"; break;
727 case ICmpInst::ICMP_SLT: pred = "slt"; break;
728 case ICmpInst::ICMP_SLE: pred = "sle"; break;
729 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
730 case ICmpInst::ICMP_UGE: pred = "uge"; break;
731 case ICmpInst::ICMP_ULT: pred = "ult"; break;
732 case ICmpInst::ICMP_ULE: pred = "ule"; break;
737 static void writeAtomicRMWOperation(raw_ostream &Out,
738 AtomicRMWInst::BinOp Op) {
740 default: Out << " <unknown operation " << Op << ">"; break;
741 case AtomicRMWInst::Xchg: Out << " xchg"; break;
742 case AtomicRMWInst::Add: Out << " add"; break;
743 case AtomicRMWInst::Sub: Out << " sub"; break;
744 case AtomicRMWInst::And: Out << " and"; break;
745 case AtomicRMWInst::Nand: Out << " nand"; break;
746 case AtomicRMWInst::Or: Out << " or"; break;
747 case AtomicRMWInst::Xor: Out << " xor"; break;
748 case AtomicRMWInst::Max: Out << " max"; break;
749 case AtomicRMWInst::Min: Out << " min"; break;
750 case AtomicRMWInst::UMax: Out << " umax"; break;
751 case AtomicRMWInst::UMin: Out << " umin"; break;
755 static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
756 if (const FPMathOperator *FPO = dyn_cast<const FPMathOperator>(U)) {
757 // Unsafe algebra implies all the others, no need to write them all out
758 if (FPO->hasUnsafeAlgebra())
761 if (FPO->hasNoNaNs())
763 if (FPO->hasNoInfs())
765 if (FPO->hasNoSignedZeros())
767 if (FPO->hasAllowReciprocal())
772 if (const OverflowingBinaryOperator *OBO =
773 dyn_cast<OverflowingBinaryOperator>(U)) {
774 if (OBO->hasNoUnsignedWrap())
776 if (OBO->hasNoSignedWrap())
778 } else if (const PossiblyExactOperator *Div =
779 dyn_cast<PossiblyExactOperator>(U)) {
782 } else if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
783 if (GEP->isInBounds())
788 static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
789 TypePrinting &TypePrinter,
790 SlotTracker *Machine,
791 const Module *Context) {
792 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
793 if (CI->getType()->isIntegerTy(1)) {
794 Out << (CI->getZExtValue() ? "true" : "false");
797 Out << CI->getValue();
801 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
802 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle ||
803 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble) {
804 // We would like to output the FP constant value in exponential notation,
805 // but we cannot do this if doing so will lose precision. Check here to
806 // make sure that we only output it in exponential format if we can parse
807 // the value back and get the same value.
810 bool isHalf = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEhalf;
811 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
812 bool isInf = CFP->getValueAPF().isInfinity();
813 bool isNaN = CFP->getValueAPF().isNaN();
814 if (!isHalf && !isInf && !isNaN) {
815 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
816 CFP->getValueAPF().convertToFloat();
817 SmallString<128> StrVal;
818 raw_svector_ostream(StrVal) << Val;
820 // Check to make sure that the stringized number is not some string like
821 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
822 // that the string matches the "[-+]?[0-9]" regex.
824 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
825 ((StrVal[0] == '-' || StrVal[0] == '+') &&
826 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
827 // Reparse stringized version!
828 if (APFloat(APFloat::IEEEdouble, StrVal).convertToDouble() == Val) {
834 // Otherwise we could not reparse it to exactly the same value, so we must
835 // output the string in hexadecimal format! Note that loading and storing
836 // floating point types changes the bits of NaNs on some hosts, notably
837 // x86, so we must not use these types.
838 assert(sizeof(double) == sizeof(uint64_t) &&
839 "assuming that double is 64 bits!");
841 APFloat apf = CFP->getValueAPF();
842 // Halves and floats are represented in ASCII IR as double, convert.
844 apf.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
847 utohex_buffer(uint64_t(apf.bitcastToAPInt().getZExtValue()),
852 // Either half, or some form of long double.
853 // These appear as a magic letter identifying the type, then a
854 // fixed number of hex digits.
856 // Bit position, in the current word, of the next nibble to print.
859 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended) {
861 // api needed to prevent premature destruction
862 APInt api = CFP->getValueAPF().bitcastToAPInt();
863 const uint64_t* p = api.getRawData();
864 uint64_t word = p[1];
866 int width = api.getBitWidth();
867 for (int j=0; j<width; j+=4, shiftcount-=4) {
868 unsigned int nibble = (word>>shiftcount) & 15;
870 Out << (unsigned char)(nibble + '0');
872 Out << (unsigned char)(nibble - 10 + 'A');
873 if (shiftcount == 0 && j+4 < width) {
877 shiftcount = width-j-4;
881 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad) {
884 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble) {
887 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEhalf) {
891 llvm_unreachable("Unsupported floating point type");
892 // api needed to prevent premature destruction
893 APInt api = CFP->getValueAPF().bitcastToAPInt();
894 const uint64_t* p = api.getRawData();
896 int width = api.getBitWidth();
897 for (int j=0; j<width; j+=4, shiftcount-=4) {
898 unsigned int nibble = (word>>shiftcount) & 15;
900 Out << (unsigned char)(nibble + '0');
902 Out << (unsigned char)(nibble - 10 + 'A');
903 if (shiftcount == 0 && j+4 < width) {
907 shiftcount = width-j-4;
913 if (isa<ConstantAggregateZero>(CV)) {
914 Out << "zeroinitializer";
918 if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
919 Out << "blockaddress(";
920 WriteAsOperandInternal(Out, BA->getFunction(), &TypePrinter, Machine,
923 WriteAsOperandInternal(Out, BA->getBasicBlock(), &TypePrinter, Machine,
929 if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
930 Type *ETy = CA->getType()->getElementType();
932 TypePrinter.print(ETy, Out);
934 WriteAsOperandInternal(Out, CA->getOperand(0),
935 &TypePrinter, Machine,
937 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
939 TypePrinter.print(ETy, Out);
941 WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
948 if (const ConstantDataArray *CA = dyn_cast<ConstantDataArray>(CV)) {
949 // As a special case, print the array as a string if it is an array of
950 // i8 with ConstantInt values.
951 if (CA->isString()) {
953 PrintEscapedString(CA->getAsString(), Out);
958 Type *ETy = CA->getType()->getElementType();
960 TypePrinter.print(ETy, Out);
962 WriteAsOperandInternal(Out, CA->getElementAsConstant(0),
963 &TypePrinter, Machine,
965 for (unsigned i = 1, e = CA->getNumElements(); i != e; ++i) {
967 TypePrinter.print(ETy, Out);
969 WriteAsOperandInternal(Out, CA->getElementAsConstant(i), &TypePrinter,
977 if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
978 if (CS->getType()->isPacked())
981 unsigned N = CS->getNumOperands();
984 TypePrinter.print(CS->getOperand(0)->getType(), Out);
987 WriteAsOperandInternal(Out, CS->getOperand(0), &TypePrinter, Machine,
990 for (unsigned i = 1; i < N; i++) {
992 TypePrinter.print(CS->getOperand(i)->getType(), Out);
995 WriteAsOperandInternal(Out, CS->getOperand(i), &TypePrinter, Machine,
1002 if (CS->getType()->isPacked())
1007 if (isa<ConstantVector>(CV) || isa<ConstantDataVector>(CV)) {
1008 Type *ETy = CV->getType()->getVectorElementType();
1010 TypePrinter.print(ETy, Out);
1012 WriteAsOperandInternal(Out, CV->getAggregateElement(0U), &TypePrinter,
1014 for (unsigned i = 1, e = CV->getType()->getVectorNumElements(); i != e;++i){
1016 TypePrinter.print(ETy, Out);
1018 WriteAsOperandInternal(Out, CV->getAggregateElement(i), &TypePrinter,
1025 if (isa<ConstantPointerNull>(CV)) {
1030 if (isa<UndefValue>(CV)) {
1035 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
1036 Out << CE->getOpcodeName();
1037 WriteOptimizationInfo(Out, CE);
1038 if (CE->isCompare())
1039 Out << ' ' << getPredicateText(CE->getPredicate());
1042 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
1043 TypePrinter.print((*OI)->getType(), Out);
1045 WriteAsOperandInternal(Out, *OI, &TypePrinter, Machine, Context);
1046 if (OI+1 != CE->op_end())
1050 if (CE->hasIndices()) {
1051 ArrayRef<unsigned> Indices = CE->getIndices();
1052 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
1053 Out << ", " << Indices[i];
1058 TypePrinter.print(CE->getType(), Out);
1065 Out << "<placeholder or erroneous Constant>";
1068 static void WriteMDNodeBodyInternal(raw_ostream &Out, const MDNode *Node,
1069 TypePrinting *TypePrinter,
1070 SlotTracker *Machine,
1071 const Module *Context) {
1073 for (unsigned mi = 0, me = Node->getNumOperands(); mi != me; ++mi) {
1074 const Value *V = Node->getOperand(mi);
1078 TypePrinter->print(V->getType(), Out);
1080 WriteAsOperandInternal(Out, Node->getOperand(mi),
1081 TypePrinter, Machine, Context);
1091 /// WriteAsOperand - Write the name of the specified value out to the specified
1092 /// ostream. This can be useful when you just want to print int %reg126, not
1093 /// the whole instruction that generated it.
1095 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
1096 TypePrinting *TypePrinter,
1097 SlotTracker *Machine,
1098 const Module *Context) {
1100 PrintLLVMName(Out, V);
1104 const Constant *CV = dyn_cast<Constant>(V);
1105 if (CV && !isa<GlobalValue>(CV)) {
1106 assert(TypePrinter && "Constants require TypePrinting!");
1107 WriteConstantInternal(Out, CV, *TypePrinter, Machine, Context);
1111 if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
1113 if (IA->hasSideEffects())
1114 Out << "sideeffect ";
1115 if (IA->isAlignStack())
1116 Out << "alignstack ";
1117 // We don't emit the AD_ATT dialect as it's the assumed default.
1118 if (IA->getDialect() == InlineAsm::AD_Intel)
1119 Out << "inteldialect ";
1121 PrintEscapedString(IA->getAsmString(), Out);
1123 PrintEscapedString(IA->getConstraintString(), Out);
1128 if (const MDNode *N = dyn_cast<MDNode>(V)) {
1129 if (N->isFunctionLocal()) {
1130 // Print metadata inline, not via slot reference number.
1131 WriteMDNodeBodyInternal(Out, N, TypePrinter, Machine, Context);
1136 if (N->isFunctionLocal())
1137 Machine = new SlotTracker(N->getFunction());
1139 Machine = new SlotTracker(Context);
1141 int Slot = Machine->getMetadataSlot(N);
1149 if (const MDString *MDS = dyn_cast<MDString>(V)) {
1151 PrintEscapedString(MDS->getString(), Out);
1156 if (V->getValueID() == Value::PseudoSourceValueVal ||
1157 V->getValueID() == Value::FixedStackPseudoSourceValueVal) {
1164 // If we have a SlotTracker, use it.
1166 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1167 Slot = Machine->getGlobalSlot(GV);
1170 Slot = Machine->getLocalSlot(V);
1172 // If the local value didn't succeed, then we may be referring to a value
1173 // from a different function. Translate it, as this can happen when using
1174 // address of blocks.
1176 if ((Machine = createSlotTracker(V))) {
1177 Slot = Machine->getLocalSlot(V);
1181 } else if ((Machine = createSlotTracker(V))) {
1182 // Otherwise, create one to get the # and then destroy it.
1183 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1184 Slot = Machine->getGlobalSlot(GV);
1187 Slot = Machine->getLocalSlot(V);
1196 Out << Prefix << Slot;
1201 void llvm::WriteAsOperand(raw_ostream &Out, const Value *V,
1202 bool PrintType, const Module *Context) {
1204 // Fast path: Don't construct and populate a TypePrinting object if we
1205 // won't be needing any types printed.
1207 ((!isa<Constant>(V) && !isa<MDNode>(V)) ||
1208 V->hasName() || isa<GlobalValue>(V))) {
1209 WriteAsOperandInternal(Out, V, 0, 0, Context);
1213 if (Context == 0) Context = getModuleFromVal(V);
1215 TypePrinting TypePrinter;
1217 TypePrinter.incorporateTypes(*Context);
1219 TypePrinter.print(V->getType(), Out);
1223 WriteAsOperandInternal(Out, V, &TypePrinter, 0, Context);
1228 class AssemblyWriter {
1229 formatted_raw_ostream &Out;
1230 SlotTracker &Machine;
1231 const Module *TheModule;
1232 TypePrinting TypePrinter;
1233 AssemblyAnnotationWriter *AnnotationWriter;
1236 inline AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
1238 AssemblyAnnotationWriter *AAW)
1239 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
1241 TypePrinter.incorporateTypes(*M);
1244 void printMDNodeBody(const MDNode *MD);
1245 void printNamedMDNode(const NamedMDNode *NMD);
1247 void printModule(const Module *M);
1249 void writeOperand(const Value *Op, bool PrintType);
1250 void writeParamOperand(const Value *Operand, AttributeSet Attrs,unsigned Idx);
1251 void writeAtomic(AtomicOrdering Ordering, SynchronizationScope SynchScope);
1253 void writeAllMDNodes();
1254 void writeAllAttributeGroups();
1256 void printTypeIdentities();
1257 void printGlobal(const GlobalVariable *GV);
1258 void printAlias(const GlobalAlias *GV);
1259 void printFunction(const Function *F);
1260 void printArgument(const Argument *FA, AttributeSet Attrs, unsigned Idx);
1261 void printBasicBlock(const BasicBlock *BB);
1262 void printInstruction(const Instruction &I);
1265 // printInfoComment - Print a little comment after the instruction indicating
1266 // which slot it occupies.
1267 void printInfoComment(const Value &V);
1269 } // end of anonymous namespace
1271 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
1273 Out << "<null operand!>";
1277 TypePrinter.print(Operand->getType(), Out);
1280 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1283 void AssemblyWriter::writeAtomic(AtomicOrdering Ordering,
1284 SynchronizationScope SynchScope) {
1285 if (Ordering == NotAtomic)
1288 switch (SynchScope) {
1289 case SingleThread: Out << " singlethread"; break;
1290 case CrossThread: break;
1294 default: Out << " <bad ordering " << int(Ordering) << ">"; break;
1295 case Unordered: Out << " unordered"; break;
1296 case Monotonic: Out << " monotonic"; break;
1297 case Acquire: Out << " acquire"; break;
1298 case Release: Out << " release"; break;
1299 case AcquireRelease: Out << " acq_rel"; break;
1300 case SequentiallyConsistent: Out << " seq_cst"; break;
1304 void AssemblyWriter::writeParamOperand(const Value *Operand,
1305 AttributeSet Attrs, unsigned Idx) {
1307 Out << "<null operand!>";
1312 TypePrinter.print(Operand->getType(), Out);
1313 // Print parameter attributes list
1314 if (Attrs.hasAttributes(Idx))
1315 Out << ' ' << Attrs.getAsString(Idx);
1317 // Print the operand
1318 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1321 void AssemblyWriter::printModule(const Module *M) {
1322 Machine.initialize();
1324 if (!M->getModuleIdentifier().empty() &&
1325 // Don't print the ID if it will start a new line (which would
1326 // require a comment char before it).
1327 M->getModuleIdentifier().find('\n') == std::string::npos)
1328 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
1330 if (!M->getDataLayout().empty())
1331 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
1332 if (!M->getTargetTriple().empty())
1333 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
1335 if (!M->getModuleInlineAsm().empty()) {
1336 // Split the string into lines, to make it easier to read the .ll file.
1337 std::string Asm = M->getModuleInlineAsm();
1339 size_t NewLine = Asm.find_first_of('\n', CurPos);
1341 while (NewLine != std::string::npos) {
1342 // We found a newline, print the portion of the asm string from the
1343 // last newline up to this newline.
1344 Out << "module asm \"";
1345 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
1349 NewLine = Asm.find_first_of('\n', CurPos);
1351 std::string rest(Asm.begin()+CurPos, Asm.end());
1352 if (!rest.empty()) {
1353 Out << "module asm \"";
1354 PrintEscapedString(rest, Out);
1359 printTypeIdentities();
1361 // Output all globals.
1362 if (!M->global_empty()) Out << '\n';
1363 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
1365 printGlobal(I); Out << '\n';
1368 // Output all aliases.
1369 if (!M->alias_empty()) Out << "\n";
1370 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
1374 // Output all of the functions.
1375 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
1378 // Output all attribute groups.
1379 if (!Machine.as_empty()) {
1381 writeAllAttributeGroups();
1384 // Output named metadata.
1385 if (!M->named_metadata_empty()) Out << '\n';
1387 for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
1388 E = M->named_metadata_end(); I != E; ++I)
1389 printNamedMDNode(I);
1392 if (!Machine.mdn_empty()) {
1398 void AssemblyWriter::printNamedMDNode(const NamedMDNode *NMD) {
1400 StringRef Name = NMD->getName();
1402 Out << "<empty name> ";
1404 if (isalpha(static_cast<unsigned char>(Name[0])) ||
1405 Name[0] == '-' || Name[0] == '$' ||
1406 Name[0] == '.' || Name[0] == '_')
1409 Out << '\\' << hexdigit(Name[0] >> 4) << hexdigit(Name[0] & 0x0F);
1410 for (unsigned i = 1, e = Name.size(); i != e; ++i) {
1411 unsigned char C = Name[i];
1412 if (isalnum(static_cast<unsigned char>(C)) || C == '-' || C == '$' ||
1413 C == '.' || C == '_')
1416 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
1420 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
1422 int Slot = Machine.getMetadataSlot(NMD->getOperand(i));
1432 static void PrintLinkage(GlobalValue::LinkageTypes LT,
1433 formatted_raw_ostream &Out) {
1435 case GlobalValue::ExternalLinkage: break;
1436 case GlobalValue::PrivateLinkage: Out << "private "; break;
1437 case GlobalValue::LinkerPrivateLinkage: Out << "linker_private "; break;
1438 case GlobalValue::LinkerPrivateWeakLinkage:
1439 Out << "linker_private_weak ";
1441 case GlobalValue::InternalLinkage: Out << "internal "; break;
1442 case GlobalValue::LinkOnceAnyLinkage: Out << "linkonce "; break;
1443 case GlobalValue::LinkOnceODRLinkage: Out << "linkonce_odr "; break;
1444 case GlobalValue::LinkOnceODRAutoHideLinkage:
1445 Out << "linkonce_odr_auto_hide ";
1447 case GlobalValue::WeakAnyLinkage: Out << "weak "; break;
1448 case GlobalValue::WeakODRLinkage: Out << "weak_odr "; break;
1449 case GlobalValue::CommonLinkage: Out << "common "; break;
1450 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1451 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1452 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1453 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1454 case GlobalValue::AvailableExternallyLinkage:
1455 Out << "available_externally ";
1461 static void PrintVisibility(GlobalValue::VisibilityTypes Vis,
1462 formatted_raw_ostream &Out) {
1464 case GlobalValue::DefaultVisibility: break;
1465 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1466 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1470 static void PrintThreadLocalModel(GlobalVariable::ThreadLocalMode TLM,
1471 formatted_raw_ostream &Out) {
1473 case GlobalVariable::NotThreadLocal:
1475 case GlobalVariable::GeneralDynamicTLSModel:
1476 Out << "thread_local ";
1478 case GlobalVariable::LocalDynamicTLSModel:
1479 Out << "thread_local(localdynamic) ";
1481 case GlobalVariable::InitialExecTLSModel:
1482 Out << "thread_local(initialexec) ";
1484 case GlobalVariable::LocalExecTLSModel:
1485 Out << "thread_local(localexec) ";
1490 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
1491 if (GV->isMaterializable())
1492 Out << "; Materializable\n";
1494 WriteAsOperandInternal(Out, GV, &TypePrinter, &Machine, GV->getParent());
1497 if (!GV->hasInitializer() && GV->hasExternalLinkage())
1500 PrintLinkage(GV->getLinkage(), Out);
1501 PrintVisibility(GV->getVisibility(), Out);
1502 PrintThreadLocalModel(GV->getThreadLocalMode(), Out);
1504 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1505 Out << "addrspace(" << AddressSpace << ") ";
1506 if (GV->hasUnnamedAddr()) Out << "unnamed_addr ";
1507 if (GV->isExternallyInitialized()) Out << "externally_initialized ";
1508 Out << (GV->isConstant() ? "constant " : "global ");
1509 TypePrinter.print(GV->getType()->getElementType(), Out);
1511 if (GV->hasInitializer()) {
1513 writeOperand(GV->getInitializer(), false);
1516 if (GV->hasSection()) {
1517 Out << ", section \"";
1518 PrintEscapedString(GV->getSection(), Out);
1521 if (GV->getAlignment())
1522 Out << ", align " << GV->getAlignment();
1524 printInfoComment(*GV);
1527 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1528 if (GA->isMaterializable())
1529 Out << "; Materializable\n";
1531 // Don't crash when dumping partially built GA
1533 Out << "<<nameless>> = ";
1535 PrintLLVMName(Out, GA);
1538 PrintVisibility(GA->getVisibility(), Out);
1542 PrintLinkage(GA->getLinkage(), Out);
1544 const Constant *Aliasee = GA->getAliasee();
1547 TypePrinter.print(GA->getType(), Out);
1548 Out << " <<NULL ALIASEE>>";
1550 writeOperand(Aliasee, !isa<ConstantExpr>(Aliasee));
1553 printInfoComment(*GA);
1557 void AssemblyWriter::printTypeIdentities() {
1558 if (TypePrinter.NumberedTypes.empty() &&
1559 TypePrinter.NamedTypes.empty())
1564 // We know all the numbers that each type is used and we know that it is a
1565 // dense assignment. Convert the map to an index table.
1566 std::vector<StructType*> NumberedTypes(TypePrinter.NumberedTypes.size());
1567 for (DenseMap<StructType*, unsigned>::iterator I =
1568 TypePrinter.NumberedTypes.begin(), E = TypePrinter.NumberedTypes.end();
1570 assert(I->second < NumberedTypes.size() && "Didn't get a dense numbering?");
1571 NumberedTypes[I->second] = I->first;
1574 // Emit all numbered types.
1575 for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i) {
1576 Out << '%' << i << " = type ";
1578 // Make sure we print out at least one level of the type structure, so
1579 // that we do not get %2 = type %2
1580 TypePrinter.printStructBody(NumberedTypes[i], Out);
1584 for (unsigned i = 0, e = TypePrinter.NamedTypes.size(); i != e; ++i) {
1585 PrintLLVMName(Out, TypePrinter.NamedTypes[i]->getName(), LocalPrefix);
1588 // Make sure we print out at least one level of the type structure, so
1589 // that we do not get %FILE = type %FILE
1590 TypePrinter.printStructBody(TypePrinter.NamedTypes[i], Out);
1595 /// printFunction - Print all aspects of a function.
1597 void AssemblyWriter::printFunction(const Function *F) {
1598 // Print out the return type and name.
1601 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1603 if (F->isMaterializable())
1604 Out << "; Materializable\n";
1606 if (F->isDeclaration())
1611 PrintLinkage(F->getLinkage(), Out);
1612 PrintVisibility(F->getVisibility(), Out);
1614 // Print the calling convention.
1615 if (F->getCallingConv() != CallingConv::C) {
1616 PrintCallingConv(F->getCallingConv(), Out);
1620 FunctionType *FT = F->getFunctionType();
1621 const AttributeSet &Attrs = F->getAttributes();
1622 if (Attrs.hasAttributes(AttributeSet::ReturnIndex))
1623 Out << Attrs.getAsString(AttributeSet::ReturnIndex) << ' ';
1624 TypePrinter.print(F->getReturnType(), Out);
1626 WriteAsOperandInternal(Out, F, &TypePrinter, &Machine, F->getParent());
1628 Machine.incorporateFunction(F);
1630 // Loop over the arguments, printing them...
1633 if (!F->isDeclaration()) {
1634 // If this isn't a declaration, print the argument names as well.
1635 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1637 // Insert commas as we go... the first arg doesn't get a comma
1638 if (I != F->arg_begin()) Out << ", ";
1639 printArgument(I, Attrs, Idx);
1643 // Otherwise, print the types from the function type.
1644 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1645 // Insert commas as we go... the first arg doesn't get a comma
1649 TypePrinter.print(FT->getParamType(i), Out);
1651 if (Attrs.hasAttributes(i+1))
1652 Out << ' ' << Attrs.getAsString(i+1);
1656 // Finish printing arguments...
1657 if (FT->isVarArg()) {
1658 if (FT->getNumParams()) Out << ", ";
1659 Out << "..."; // Output varargs portion of signature!
1662 if (F->hasUnnamedAddr())
1663 Out << " unnamed_addr";
1664 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
1665 Out << " #" << Machine.getAttributeGroupSlot(Attrs.getFnAttributes());
1666 if (F->hasSection()) {
1667 Out << " section \"";
1668 PrintEscapedString(F->getSection(), Out);
1671 if (F->getAlignment())
1672 Out << " align " << F->getAlignment();
1674 Out << " gc \"" << F->getGC() << '"';
1675 if (F->isDeclaration()) {
1679 // Output all of the function's basic blocks.
1680 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1686 Machine.purgeFunction();
1689 /// printArgument - This member is called for every argument that is passed into
1690 /// the function. Simply print it out
1692 void AssemblyWriter::printArgument(const Argument *Arg,
1693 AttributeSet Attrs, unsigned Idx) {
1695 TypePrinter.print(Arg->getType(), Out);
1697 // Output parameter attributes list
1698 if (Attrs.hasAttributes(Idx))
1699 Out << ' ' << Attrs.getAsString(Idx);
1701 // Output name, if available...
1702 if (Arg->hasName()) {
1704 PrintLLVMName(Out, Arg);
1708 /// printBasicBlock - This member is called for each basic block in a method.
1710 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1711 if (BB->hasName()) { // Print out the label if it exists...
1713 PrintLLVMName(Out, BB->getName(), LabelPrefix);
1715 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1716 Out << "\n; <label>:";
1717 int Slot = Machine.getLocalSlot(BB);
1724 if (BB->getParent() == 0) {
1725 Out.PadToColumn(50);
1726 Out << "; Error: Block without parent!";
1727 } else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1728 // Output predecessors for the block.
1729 Out.PadToColumn(50);
1731 const_pred_iterator PI = pred_begin(BB), PE = pred_end(BB);
1734 Out << " No predecessors!";
1737 writeOperand(*PI, false);
1738 for (++PI; PI != PE; ++PI) {
1740 writeOperand(*PI, false);
1747 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1749 // Output all of the instructions in the basic block...
1750 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
1751 printInstruction(*I);
1755 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1758 /// printInfoComment - Print a little comment after the instruction indicating
1759 /// which slot it occupies.
1761 void AssemblyWriter::printInfoComment(const Value &V) {
1762 if (AnnotationWriter) {
1763 AnnotationWriter->printInfoComment(V, Out);
1768 // This member is called for each Instruction in a function..
1769 void AssemblyWriter::printInstruction(const Instruction &I) {
1770 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1772 // Print out indentation for an instruction.
1775 // Print out name if it exists...
1777 PrintLLVMName(Out, &I);
1779 } else if (!I.getType()->isVoidTy()) {
1780 // Print out the def slot taken.
1781 int SlotNum = Machine.getLocalSlot(&I);
1783 Out << "<badref> = ";
1785 Out << '%' << SlotNum << " = ";
1788 if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall())
1791 // Print out the opcode...
1792 Out << I.getOpcodeName();
1794 // If this is an atomic load or store, print out the atomic marker.
1795 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isAtomic()) ||
1796 (isa<StoreInst>(I) && cast<StoreInst>(I).isAtomic()))
1799 // If this is a volatile operation, print out the volatile marker.
1800 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1801 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile()) ||
1802 (isa<AtomicCmpXchgInst>(I) && cast<AtomicCmpXchgInst>(I).isVolatile()) ||
1803 (isa<AtomicRMWInst>(I) && cast<AtomicRMWInst>(I).isVolatile()))
1806 // Print out optimization information.
1807 WriteOptimizationInfo(Out, &I);
1809 // Print out the compare instruction predicates
1810 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1811 Out << ' ' << getPredicateText(CI->getPredicate());
1813 // Print out the atomicrmw operation
1814 if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I))
1815 writeAtomicRMWOperation(Out, RMWI->getOperation());
1817 // Print out the type of the operands...
1818 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1820 // Special case conditional branches to swizzle the condition out to the front
1821 if (isa<BranchInst>(I) && cast<BranchInst>(I).isConditional()) {
1822 const BranchInst &BI(cast<BranchInst>(I));
1824 writeOperand(BI.getCondition(), true);
1826 writeOperand(BI.getSuccessor(0), true);
1828 writeOperand(BI.getSuccessor(1), true);
1830 } else if (isa<SwitchInst>(I)) {
1831 const SwitchInst& SI(cast<SwitchInst>(I));
1832 // Special case switch instruction to get formatting nice and correct.
1834 writeOperand(SI.getCondition(), true);
1836 writeOperand(SI.getDefaultDest(), true);
1838 for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end();
1841 writeOperand(i.getCaseValue(), true);
1843 writeOperand(i.getCaseSuccessor(), true);
1846 } else if (isa<IndirectBrInst>(I)) {
1847 // Special case indirectbr instruction to get formatting nice and correct.
1849 writeOperand(Operand, true);
1852 for (unsigned i = 1, e = I.getNumOperands(); i != e; ++i) {
1855 writeOperand(I.getOperand(i), true);
1858 } else if (const PHINode *PN = dyn_cast<PHINode>(&I)) {
1860 TypePrinter.print(I.getType(), Out);
1863 for (unsigned op = 0, Eop = PN->getNumIncomingValues(); op < Eop; ++op) {
1864 if (op) Out << ", ";
1866 writeOperand(PN->getIncomingValue(op), false); Out << ", ";
1867 writeOperand(PN->getIncomingBlock(op), false); Out << " ]";
1869 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1871 writeOperand(I.getOperand(0), true);
1872 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1874 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1876 writeOperand(I.getOperand(0), true); Out << ", ";
1877 writeOperand(I.getOperand(1), true);
1878 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1880 } else if (const LandingPadInst *LPI = dyn_cast<LandingPadInst>(&I)) {
1882 TypePrinter.print(I.getType(), Out);
1883 Out << " personality ";
1884 writeOperand(I.getOperand(0), true); Out << '\n';
1886 if (LPI->isCleanup())
1889 for (unsigned i = 0, e = LPI->getNumClauses(); i != e; ++i) {
1890 if (i != 0 || LPI->isCleanup()) Out << "\n";
1891 if (LPI->isCatch(i))
1896 writeOperand(LPI->getClause(i), true);
1898 } else if (isa<ReturnInst>(I) && !Operand) {
1900 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1901 // Print the calling convention being used.
1902 if (CI->getCallingConv() != CallingConv::C) {
1904 PrintCallingConv(CI->getCallingConv(), Out);
1907 Operand = CI->getCalledValue();
1908 PointerType *PTy = cast<PointerType>(Operand->getType());
1909 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1910 Type *RetTy = FTy->getReturnType();
1911 const AttributeSet &PAL = CI->getAttributes();
1913 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1914 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1916 // If possible, print out the short form of the call instruction. We can
1917 // only do this if the first argument is a pointer to a nonvararg function,
1918 // and if the return type is not a pointer to a function.
1921 if (!FTy->isVarArg() &&
1922 (!RetTy->isPointerTy() ||
1923 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1924 TypePrinter.print(RetTy, Out);
1926 writeOperand(Operand, false);
1928 writeOperand(Operand, true);
1931 for (unsigned op = 0, Eop = CI->getNumArgOperands(); op < Eop; ++op) {
1934 writeParamOperand(CI->getArgOperand(op), PAL, op + 1);
1937 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1938 Out << ' ' << PAL.getAsString(AttributeSet::FunctionIndex);
1939 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1940 Operand = II->getCalledValue();
1941 PointerType *PTy = cast<PointerType>(Operand->getType());
1942 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1943 Type *RetTy = FTy->getReturnType();
1944 const AttributeSet &PAL = II->getAttributes();
1946 // Print the calling convention being used.
1947 if (II->getCallingConv() != CallingConv::C) {
1949 PrintCallingConv(II->getCallingConv(), Out);
1952 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1953 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1955 // If possible, print out the short form of the invoke instruction. We can
1956 // only do this if the first argument is a pointer to a nonvararg function,
1957 // and if the return type is not a pointer to a function.
1960 if (!FTy->isVarArg() &&
1961 (!RetTy->isPointerTy() ||
1962 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1963 TypePrinter.print(RetTy, Out);
1965 writeOperand(Operand, false);
1967 writeOperand(Operand, true);
1970 for (unsigned op = 0, Eop = II->getNumArgOperands(); op < Eop; ++op) {
1973 writeParamOperand(II->getArgOperand(op), PAL, op + 1);
1977 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1978 Out << ' ' << PAL.getAsString(AttributeSet::FunctionIndex);
1981 writeOperand(II->getNormalDest(), true);
1983 writeOperand(II->getUnwindDest(), true);
1985 } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
1987 TypePrinter.print(AI->getAllocatedType(), Out);
1988 if (!AI->getArraySize() || AI->isArrayAllocation()) {
1990 writeOperand(AI->getArraySize(), true);
1992 if (AI->getAlignment()) {
1993 Out << ", align " << AI->getAlignment();
1995 } else if (isa<CastInst>(I)) {
1998 writeOperand(Operand, true); // Work with broken code
2001 TypePrinter.print(I.getType(), Out);
2002 } else if (isa<VAArgInst>(I)) {
2005 writeOperand(Operand, true); // Work with broken code
2008 TypePrinter.print(I.getType(), Out);
2009 } else if (Operand) { // Print the normal way.
2011 // PrintAllTypes - Instructions who have operands of all the same type
2012 // omit the type from all but the first operand. If the instruction has
2013 // different type operands (for example br), then they are all printed.
2014 bool PrintAllTypes = false;
2015 Type *TheType = Operand->getType();
2017 // Select, Store and ShuffleVector always print all types.
2018 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
2019 || isa<ReturnInst>(I)) {
2020 PrintAllTypes = true;
2022 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
2023 Operand = I.getOperand(i);
2024 // note that Operand shouldn't be null, but the test helps make dump()
2025 // more tolerant of malformed IR
2026 if (Operand && Operand->getType() != TheType) {
2027 PrintAllTypes = true; // We have differing types! Print them all!
2033 if (!PrintAllTypes) {
2035 TypePrinter.print(TheType, Out);
2039 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
2041 writeOperand(I.getOperand(i), PrintAllTypes);
2045 // Print atomic ordering/alignment for memory operations
2046 if (const LoadInst *LI = dyn_cast<LoadInst>(&I)) {
2048 writeAtomic(LI->getOrdering(), LI->getSynchScope());
2049 if (LI->getAlignment())
2050 Out << ", align " << LI->getAlignment();
2051 } else if (const StoreInst *SI = dyn_cast<StoreInst>(&I)) {
2053 writeAtomic(SI->getOrdering(), SI->getSynchScope());
2054 if (SI->getAlignment())
2055 Out << ", align " << SI->getAlignment();
2056 } else if (const AtomicCmpXchgInst *CXI = dyn_cast<AtomicCmpXchgInst>(&I)) {
2057 writeAtomic(CXI->getOrdering(), CXI->getSynchScope());
2058 } else if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I)) {
2059 writeAtomic(RMWI->getOrdering(), RMWI->getSynchScope());
2060 } else if (const FenceInst *FI = dyn_cast<FenceInst>(&I)) {
2061 writeAtomic(FI->getOrdering(), FI->getSynchScope());
2064 // Print Metadata info.
2065 SmallVector<std::pair<unsigned, MDNode*>, 4> InstMD;
2066 I.getAllMetadata(InstMD);
2067 if (!InstMD.empty()) {
2068 SmallVector<StringRef, 8> MDNames;
2069 I.getType()->getContext().getMDKindNames(MDNames);
2070 for (unsigned i = 0, e = InstMD.size(); i != e; ++i) {
2071 unsigned Kind = InstMD[i].first;
2072 if (Kind < MDNames.size()) {
2073 Out << ", !" << MDNames[Kind];
2075 Out << ", !<unknown kind #" << Kind << ">";
2078 WriteAsOperandInternal(Out, InstMD[i].second, &TypePrinter, &Machine,
2082 printInfoComment(I);
2085 static void WriteMDNodeComment(const MDNode *Node,
2086 formatted_raw_ostream &Out) {
2087 if (Node->getNumOperands() < 1)
2090 Value *Op = Node->getOperand(0);
2091 if (!Op || !isa<ConstantInt>(Op) || cast<ConstantInt>(Op)->getBitWidth() < 32)
2094 DIDescriptor Desc(Node);
2095 if (Desc.getVersion() < LLVMDebugVersion11)
2098 unsigned Tag = Desc.getTag();
2099 Out.PadToColumn(50);
2100 if (dwarf::TagString(Tag)) {
2103 } else if (Tag == dwarf::DW_TAG_user_base) {
2104 Out << "; [ DW_TAG_user_base ]";
2108 void AssemblyWriter::writeAllMDNodes() {
2109 SmallVector<const MDNode *, 16> Nodes;
2110 Nodes.resize(Machine.mdn_size());
2111 for (SlotTracker::mdn_iterator I = Machine.mdn_begin(), E = Machine.mdn_end();
2113 Nodes[I->second] = cast<MDNode>(I->first);
2115 for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
2116 Out << '!' << i << " = metadata ";
2117 printMDNodeBody(Nodes[i]);
2121 void AssemblyWriter::printMDNodeBody(const MDNode *Node) {
2122 WriteMDNodeBodyInternal(Out, Node, &TypePrinter, &Machine, TheModule);
2123 WriteMDNodeComment(Node, Out);
2127 void AssemblyWriter::writeAllAttributeGroups() {
2128 std::vector<std::pair<AttributeSet, unsigned> > asVec;
2129 asVec.resize(Machine.as_size());
2131 for (SlotTracker::as_iterator I = Machine.as_begin(), E = Machine.as_end();
2133 asVec[I->second] = *I;
2135 for (std::vector<std::pair<AttributeSet, unsigned> >::iterator
2136 I = asVec.begin(), E = asVec.end(); I != E; ++I)
2137 Out << "attributes #" << I->second << " = { "
2138 << I->first.getAsString(AttributeSet::FunctionIndex, true) << " }\n";
2141 //===----------------------------------------------------------------------===//
2142 // External Interface declarations
2143 //===----------------------------------------------------------------------===//
2145 void Module::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2146 SlotTracker SlotTable(this);
2147 formatted_raw_ostream OS(ROS);
2148 AssemblyWriter W(OS, SlotTable, this, AAW);
2149 W.printModule(this);
2152 void NamedMDNode::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2153 SlotTracker SlotTable(getParent());
2154 formatted_raw_ostream OS(ROS);
2155 AssemblyWriter W(OS, SlotTable, getParent(), AAW);
2156 W.printNamedMDNode(this);
2159 void Type::print(raw_ostream &OS) const {
2161 OS << "<null Type>";
2165 TP.print(const_cast<Type*>(this), OS);
2167 // If the type is a named struct type, print the body as well.
2168 if (StructType *STy = dyn_cast<StructType>(const_cast<Type*>(this)))
2169 if (!STy->isLiteral()) {
2171 TP.printStructBody(STy, OS);
2175 void Value::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2177 ROS << "printing a <null> value\n";
2180 formatted_raw_ostream OS(ROS);
2181 if (const Instruction *I = dyn_cast<Instruction>(this)) {
2182 const Function *F = I->getParent() ? I->getParent()->getParent() : 0;
2183 SlotTracker SlotTable(F);
2184 AssemblyWriter W(OS, SlotTable, getModuleFromVal(I), AAW);
2185 W.printInstruction(*I);
2186 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(this)) {
2187 SlotTracker SlotTable(BB->getParent());
2188 AssemblyWriter W(OS, SlotTable, getModuleFromVal(BB), AAW);
2189 W.printBasicBlock(BB);
2190 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(this)) {
2191 SlotTracker SlotTable(GV->getParent());
2192 AssemblyWriter W(OS, SlotTable, GV->getParent(), AAW);
2193 if (const GlobalVariable *V = dyn_cast<GlobalVariable>(GV))
2195 else if (const Function *F = dyn_cast<Function>(GV))
2198 W.printAlias(cast<GlobalAlias>(GV));
2199 } else if (const MDNode *N = dyn_cast<MDNode>(this)) {
2200 const Function *F = N->getFunction();
2201 SlotTracker SlotTable(F);
2202 AssemblyWriter W(OS, SlotTable, F ? F->getParent() : 0, AAW);
2203 W.printMDNodeBody(N);
2204 } else if (const Constant *C = dyn_cast<Constant>(this)) {
2205 TypePrinting TypePrinter;
2206 TypePrinter.print(C->getType(), OS);
2208 WriteConstantInternal(OS, C, TypePrinter, 0, 0);
2209 } else if (isa<InlineAsm>(this) || isa<MDString>(this) ||
2210 isa<Argument>(this)) {
2211 WriteAsOperand(OS, this, true, 0);
2213 // Otherwise we don't know what it is. Call the virtual function to
2214 // allow a subclass to print itself.
2219 // Value::printCustom - subclasses should override this to implement printing.
2220 void Value::printCustom(raw_ostream &OS) const {
2221 llvm_unreachable("Unknown value to print out!");
2224 // Value::dump - allow easy printing of Values from the debugger.
2225 void Value::dump() const { print(dbgs()); dbgs() << '\n'; }
2227 // Type::dump - allow easy printing of Types from the debugger.
2228 void Type::dump() const { print(dbgs()); }
2230 // Module::dump() - Allow printing of Modules from the debugger.
2231 void Module::dump() const { print(dbgs(), 0); }
2233 // NamedMDNode::dump() - Allow printing of NamedMDNodes from the debugger.
2234 void NamedMDNode::dump() const { print(dbgs(), 0); }