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/CommandLine.h"
37 #include "llvm/Support/Debug.h"
38 #include "llvm/Support/Dwarf.h"
39 #include "llvm/Support/ErrorHandling.h"
40 #include "llvm/Support/FormattedStream.h"
41 #include "llvm/Support/MathExtras.h"
47 OldStyleAttrSyntax("enable-old-style-attr-syntax",
48 cl::desc("Output attributes on functions rather than in attribute groups"),
52 // Make virtual table appear in this compilation unit.
53 AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
55 //===----------------------------------------------------------------------===//
57 //===----------------------------------------------------------------------===//
59 static const Module *getModuleFromVal(const Value *V) {
60 if (const Argument *MA = dyn_cast<Argument>(V))
61 return MA->getParent() ? MA->getParent()->getParent() : 0;
63 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
64 return BB->getParent() ? BB->getParent()->getParent() : 0;
66 if (const Instruction *I = dyn_cast<Instruction>(V)) {
67 const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
68 return M ? M->getParent() : 0;
71 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
72 return GV->getParent();
76 static void PrintCallingConv(unsigned cc, raw_ostream &Out) {
78 default: Out << "cc" << cc; break;
79 case CallingConv::Fast: Out << "fastcc"; break;
80 case CallingConv::Cold: Out << "coldcc"; break;
81 case CallingConv::X86_StdCall: Out << "x86_stdcallcc"; break;
82 case CallingConv::X86_FastCall: Out << "x86_fastcallcc"; break;
83 case CallingConv::X86_ThisCall: Out << "x86_thiscallcc"; break;
84 case CallingConv::Intel_OCL_BI: Out << "intel_ocl_bicc"; break;
85 case CallingConv::ARM_APCS: Out << "arm_apcscc"; break;
86 case CallingConv::ARM_AAPCS: Out << "arm_aapcscc"; break;
87 case CallingConv::ARM_AAPCS_VFP: Out << "arm_aapcs_vfpcc"; break;
88 case CallingConv::MSP430_INTR: Out << "msp430_intrcc"; break;
89 case CallingConv::PTX_Kernel: Out << "ptx_kernel"; break;
90 case CallingConv::PTX_Device: Out << "ptx_device"; break;
94 // PrintEscapedString - Print each character of the specified string, escaping
95 // it if it is not printable or if it is an escape char.
96 static void PrintEscapedString(StringRef Name, raw_ostream &Out) {
97 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
98 unsigned char C = Name[i];
99 if (isprint(C) && C != '\\' && C != '"')
102 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
113 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
114 /// prefixed with % (if the string only contains simple characters) or is
115 /// surrounded with ""'s (if it has special chars in it). Print it out.
116 static void PrintLLVMName(raw_ostream &OS, StringRef Name, PrefixType Prefix) {
117 assert(!Name.empty() && "Cannot get empty name!");
119 case NoPrefix: break;
120 case GlobalPrefix: OS << '@'; break;
121 case LabelPrefix: break;
122 case LocalPrefix: OS << '%'; break;
125 // Scan the name to see if it needs quotes first.
126 bool NeedsQuotes = isdigit(static_cast<unsigned char>(Name[0]));
128 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
129 // By making this unsigned, the value passed in to isalnum will always be
130 // in the range 0-255. This is important when building with MSVC because
131 // its implementation will assert. This situation can arise when dealing
132 // with UTF-8 multibyte characters.
133 unsigned char C = Name[i];
134 if (!isalnum(static_cast<unsigned char>(C)) && C != '-' && C != '.' &&
142 // If we didn't need any quotes, just write out the name in one blast.
148 // Okay, we need quotes. Output the quotes and escape any scary characters as
151 PrintEscapedString(Name, OS);
155 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
156 /// prefixed with % (if the string only contains simple characters) or is
157 /// surrounded with ""'s (if it has special chars in it). Print it out.
158 static void PrintLLVMName(raw_ostream &OS, const Value *V) {
159 PrintLLVMName(OS, V->getName(),
160 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
163 //===----------------------------------------------------------------------===//
164 // TypePrinting Class: Type printing machinery
165 //===----------------------------------------------------------------------===//
167 /// TypePrinting - Type printing machinery.
170 TypePrinting(const TypePrinting &) LLVM_DELETED_FUNCTION;
171 void operator=(const TypePrinting&) LLVM_DELETED_FUNCTION;
174 /// NamedTypes - The named types that are used by the current module.
175 TypeFinder NamedTypes;
177 /// NumberedTypes - The numbered types, along with their value.
178 DenseMap<StructType*, unsigned> NumberedTypes;
184 void incorporateTypes(const Module &M);
186 void print(Type *Ty, raw_ostream &OS);
188 void printStructBody(StructType *Ty, raw_ostream &OS);
190 } // end anonymous namespace.
193 void TypePrinting::incorporateTypes(const Module &M) {
194 NamedTypes.run(M, false);
196 // The list of struct types we got back includes all the struct types, split
197 // the unnamed ones out to a numbering and remove the anonymous structs.
198 unsigned NextNumber = 0;
200 std::vector<StructType*>::iterator NextToUse = NamedTypes.begin(), I, E;
201 for (I = NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) {
202 StructType *STy = *I;
204 // Ignore anonymous types.
205 if (STy->isLiteral())
208 if (STy->getName().empty())
209 NumberedTypes[STy] = NextNumber++;
214 NamedTypes.erase(NextToUse, NamedTypes.end());
218 /// CalcTypeName - Write the specified type to the specified raw_ostream, making
219 /// use of type names or up references to shorten the type name where possible.
220 void TypePrinting::print(Type *Ty, raw_ostream &OS) {
221 switch (Ty->getTypeID()) {
222 case Type::VoidTyID: OS << "void"; break;
223 case Type::HalfTyID: OS << "half"; break;
224 case Type::FloatTyID: OS << "float"; break;
225 case Type::DoubleTyID: OS << "double"; break;
226 case Type::X86_FP80TyID: OS << "x86_fp80"; break;
227 case Type::FP128TyID: OS << "fp128"; break;
228 case Type::PPC_FP128TyID: OS << "ppc_fp128"; break;
229 case Type::LabelTyID: OS << "label"; break;
230 case Type::MetadataTyID: OS << "metadata"; break;
231 case Type::X86_MMXTyID: OS << "x86_mmx"; break;
232 case Type::IntegerTyID:
233 OS << 'i' << cast<IntegerType>(Ty)->getBitWidth();
236 case Type::FunctionTyID: {
237 FunctionType *FTy = cast<FunctionType>(Ty);
238 print(FTy->getReturnType(), OS);
240 for (FunctionType::param_iterator I = FTy->param_begin(),
241 E = FTy->param_end(); I != E; ++I) {
242 if (I != FTy->param_begin())
246 if (FTy->isVarArg()) {
247 if (FTy->getNumParams()) OS << ", ";
253 case Type::StructTyID: {
254 StructType *STy = cast<StructType>(Ty);
256 if (STy->isLiteral())
257 return printStructBody(STy, OS);
259 if (!STy->getName().empty())
260 return PrintLLVMName(OS, STy->getName(), LocalPrefix);
262 DenseMap<StructType*, unsigned>::iterator I = NumberedTypes.find(STy);
263 if (I != NumberedTypes.end())
264 OS << '%' << I->second;
265 else // Not enumerated, print the hex address.
266 OS << "%\"type " << STy << '\"';
269 case Type::PointerTyID: {
270 PointerType *PTy = cast<PointerType>(Ty);
271 print(PTy->getElementType(), OS);
272 if (unsigned AddressSpace = PTy->getAddressSpace())
273 OS << " addrspace(" << AddressSpace << ')';
277 case Type::ArrayTyID: {
278 ArrayType *ATy = cast<ArrayType>(Ty);
279 OS << '[' << ATy->getNumElements() << " x ";
280 print(ATy->getElementType(), OS);
284 case Type::VectorTyID: {
285 VectorType *PTy = cast<VectorType>(Ty);
286 OS << "<" << PTy->getNumElements() << " x ";
287 print(PTy->getElementType(), OS);
292 OS << "<unrecognized-type>";
297 void TypePrinting::printStructBody(StructType *STy, raw_ostream &OS) {
298 if (STy->isOpaque()) {
306 if (STy->getNumElements() == 0) {
309 StructType::element_iterator I = STy->element_begin();
312 for (StructType::element_iterator E = STy->element_end(); I != E; ++I) {
325 //===----------------------------------------------------------------------===//
326 // SlotTracker Class: Enumerate slot numbers for unnamed values
327 //===----------------------------------------------------------------------===//
331 /// This class provides computation of slot numbers for LLVM Assembly writing.
335 /// ValueMap - A mapping of Values to slot numbers.
336 typedef DenseMap<const Value*, unsigned> ValueMap;
339 /// TheModule - The module for which we are holding slot numbers.
340 const Module* TheModule;
342 /// TheFunction - The function for which we are holding slot numbers.
343 const Function* TheFunction;
344 bool FunctionProcessed;
346 /// mMap - The slot map for the module level data.
350 /// fMap - The slot map for the function level data.
354 /// mdnMap - Map for MDNodes.
355 DenseMap<const MDNode*, unsigned> mdnMap;
358 /// asMap - The slot map for attribute sets.
359 DenseMap<AttributeSet, unsigned> asMap;
362 /// Construct from a module
363 explicit SlotTracker(const Module *M);
364 /// Construct from a function, starting out in incorp state.
365 explicit SlotTracker(const Function *F);
367 /// Return the slot number of the specified value in it's type
368 /// plane. If something is not in the SlotTracker, return -1.
369 int getLocalSlot(const Value *V);
370 int getGlobalSlot(const GlobalValue *V);
371 int getMetadataSlot(const MDNode *N);
372 int getAttributeGroupSlot(AttributeSet AS);
374 /// If you'd like to deal with a function instead of just a module, use
375 /// this method to get its data into the SlotTracker.
376 void incorporateFunction(const Function *F) {
378 FunctionProcessed = false;
381 /// After calling incorporateFunction, use this method to remove the
382 /// most recently incorporated function from the SlotTracker. This
383 /// will reset the state of the machine back to just the module contents.
384 void purgeFunction();
386 /// MDNode map iterators.
387 typedef DenseMap<const MDNode*, unsigned>::iterator mdn_iterator;
388 mdn_iterator mdn_begin() { return mdnMap.begin(); }
389 mdn_iterator mdn_end() { return mdnMap.end(); }
390 unsigned mdn_size() const { return mdnMap.size(); }
391 bool mdn_empty() const { return mdnMap.empty(); }
393 /// AttributeSet map iterators.
394 typedef DenseMap<AttributeSet, unsigned>::iterator as_iterator;
395 as_iterator as_begin() { return asMap.begin(); }
396 as_iterator as_end() { return asMap.end(); }
397 unsigned as_size() const { return asMap.size(); }
398 bool as_empty() const { return asMap.empty(); }
400 /// This function does the actual initialization.
401 inline void initialize();
403 // Implementation Details
405 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
406 void CreateModuleSlot(const GlobalValue *V);
408 /// CreateMetadataSlot - Insert the specified MDNode* into the slot table.
409 void CreateMetadataSlot(const MDNode *N);
411 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
412 void CreateFunctionSlot(const Value *V);
414 /// \brief Insert the specified AttributeSet into the slot table.
415 void CreateAttributeSetSlot(AttributeSet AS);
417 /// Add all of the module level global variables (and their initializers)
418 /// and function declarations, but not the contents of those functions.
419 void processModule();
421 /// Add all of the functions arguments, basic blocks, and instructions.
422 void processFunction();
424 SlotTracker(const SlotTracker &) LLVM_DELETED_FUNCTION;
425 void operator=(const SlotTracker &) LLVM_DELETED_FUNCTION;
428 } // end anonymous namespace
431 static SlotTracker *createSlotTracker(const Value *V) {
432 if (const Argument *FA = dyn_cast<Argument>(V))
433 return new SlotTracker(FA->getParent());
435 if (const Instruction *I = dyn_cast<Instruction>(V))
437 return new SlotTracker(I->getParent()->getParent());
439 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
440 return new SlotTracker(BB->getParent());
442 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
443 return new SlotTracker(GV->getParent());
445 if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
446 return new SlotTracker(GA->getParent());
448 if (const Function *Func = dyn_cast<Function>(V))
449 return new SlotTracker(Func);
451 if (const MDNode *MD = dyn_cast<MDNode>(V)) {
452 if (!MD->isFunctionLocal())
453 return new SlotTracker(MD->getFunction());
455 return new SlotTracker((Function *)0);
462 #define ST_DEBUG(X) dbgs() << X
467 // Module level constructor. Causes the contents of the Module (sans functions)
468 // to be added to the slot table.
469 SlotTracker::SlotTracker(const Module *M)
470 : TheModule(M), TheFunction(0), FunctionProcessed(false),
471 mNext(0), fNext(0), mdnNext(0), asNext(0) {
474 // Function level constructor. Causes the contents of the Module and the one
475 // function provided to be added to the slot table.
476 SlotTracker::SlotTracker(const Function *F)
477 : TheModule(F ? F->getParent() : 0), TheFunction(F), FunctionProcessed(false),
478 mNext(0), fNext(0), mdnNext(0), asNext(0) {
481 inline void SlotTracker::initialize() {
484 TheModule = 0; ///< Prevent re-processing next time we're called.
487 if (TheFunction && !FunctionProcessed)
491 // Iterate through all the global variables, functions, and global
492 // variable initializers and create slots for them.
493 void SlotTracker::processModule() {
494 ST_DEBUG("begin processModule!\n");
496 // Add all of the unnamed global variables to the value table.
497 for (Module::const_global_iterator I = TheModule->global_begin(),
498 E = TheModule->global_end(); I != E; ++I) {
503 // Add metadata used by named metadata.
504 for (Module::const_named_metadata_iterator
505 I = TheModule->named_metadata_begin(),
506 E = TheModule->named_metadata_end(); I != E; ++I) {
507 const NamedMDNode *NMD = I;
508 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
509 CreateMetadataSlot(NMD->getOperand(i));
512 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
515 // Add all the unnamed functions to the table.
518 // Add all the function attributes to the table.
519 // FIXME: Add attributes of other objects?
520 AttributeSet FnAttrs = I->getAttributes().getFnAttributes();
521 if (FnAttrs.hasAttributes(AttributeSet::FunctionIndex))
522 CreateAttributeSetSlot(FnAttrs);
525 ST_DEBUG("end processModule!\n");
528 // Process the arguments, basic blocks, and instructions of a function.
529 void SlotTracker::processFunction() {
530 ST_DEBUG("begin processFunction!\n");
533 // Add all the function arguments with no names.
534 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
535 AE = TheFunction->arg_end(); AI != AE; ++AI)
537 CreateFunctionSlot(AI);
539 ST_DEBUG("Inserting Instructions:\n");
541 SmallVector<std::pair<unsigned, MDNode*>, 4> MDForInst;
543 // Add all of the basic blocks and instructions with no names.
544 for (Function::const_iterator BB = TheFunction->begin(),
545 E = TheFunction->end(); BB != E; ++BB) {
547 CreateFunctionSlot(BB);
549 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E;
551 if (!I->getType()->isVoidTy() && !I->hasName())
552 CreateFunctionSlot(I);
554 // Intrinsics can directly use metadata. We allow direct calls to any
555 // llvm.foo function here, because the target may not be linked into the
557 if (const CallInst *CI = dyn_cast<CallInst>(I)) {
558 if (Function *F = CI->getCalledFunction())
559 if (F->getName().startswith("llvm."))
560 for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
561 if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i)))
562 CreateMetadataSlot(N);
564 // Add all the call attributes to the table.
565 AttributeSet Attrs = CI->getAttributes().getFnAttributes();
566 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
567 CreateAttributeSetSlot(Attrs);
568 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(I)) {
569 // Add all the call attributes to the table.
570 AttributeSet Attrs = II->getAttributes().getFnAttributes();
571 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
572 CreateAttributeSetSlot(Attrs);
575 // Process metadata attached with this instruction.
576 I->getAllMetadata(MDForInst);
577 for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
578 CreateMetadataSlot(MDForInst[i].second);
583 FunctionProcessed = true;
585 ST_DEBUG("end processFunction!\n");
588 /// Clean up after incorporating a function. This is the only way to get out of
589 /// the function incorporation state that affects get*Slot/Create*Slot. Function
590 /// incorporation state is indicated by TheFunction != 0.
591 void SlotTracker::purgeFunction() {
592 ST_DEBUG("begin purgeFunction!\n");
593 fMap.clear(); // Simply discard the function level map
595 FunctionProcessed = false;
596 ST_DEBUG("end purgeFunction!\n");
599 /// getGlobalSlot - Get the slot number of a global value.
600 int SlotTracker::getGlobalSlot(const GlobalValue *V) {
601 // Check for uninitialized state and do lazy initialization.
604 // Find the value in the module map
605 ValueMap::iterator MI = mMap.find(V);
606 return MI == mMap.end() ? -1 : (int)MI->second;
609 /// getMetadataSlot - Get the slot number of a MDNode.
610 int SlotTracker::getMetadataSlot(const MDNode *N) {
611 // Check for uninitialized state and do lazy initialization.
614 // Find the MDNode in the module map
615 mdn_iterator MI = mdnMap.find(N);
616 return MI == mdnMap.end() ? -1 : (int)MI->second;
620 /// getLocalSlot - Get the slot number for a value that is local to a function.
621 int SlotTracker::getLocalSlot(const Value *V) {
622 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
624 // Check for uninitialized state and do lazy initialization.
627 ValueMap::iterator FI = fMap.find(V);
628 return FI == fMap.end() ? -1 : (int)FI->second;
631 int SlotTracker::getAttributeGroupSlot(AttributeSet AS) {
632 // Check for uninitialized state and do lazy initialization.
635 // Find the AttributeSet in the module map.
636 as_iterator AI = asMap.find(AS);
637 return AI == asMap.end() ? -1 : (int)AI->second;
640 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
641 void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
642 assert(V && "Can't insert a null Value into SlotTracker!");
643 assert(!V->getType()->isVoidTy() && "Doesn't need a slot!");
644 assert(!V->hasName() && "Doesn't need a slot!");
646 unsigned DestSlot = mNext++;
649 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
651 // G = Global, F = Function, A = Alias, o = other
652 ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
653 (isa<Function>(V) ? 'F' :
654 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
657 /// CreateSlot - Create a new slot for the specified value if it has no name.
658 void SlotTracker::CreateFunctionSlot(const Value *V) {
659 assert(!V->getType()->isVoidTy() && !V->hasName() && "Doesn't need a slot!");
661 unsigned DestSlot = fNext++;
664 // G = Global, F = Function, o = other
665 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
666 DestSlot << " [o]\n");
669 /// CreateModuleSlot - Insert the specified MDNode* into the slot table.
670 void SlotTracker::CreateMetadataSlot(const MDNode *N) {
671 assert(N && "Can't insert a null Value into SlotTracker!");
673 // Don't insert if N is a function-local metadata, these are always printed
675 if (!N->isFunctionLocal()) {
676 mdn_iterator I = mdnMap.find(N);
677 if (I != mdnMap.end())
680 unsigned DestSlot = mdnNext++;
681 mdnMap[N] = DestSlot;
684 // Recursively add any MDNodes referenced by operands.
685 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
686 if (const MDNode *Op = dyn_cast_or_null<MDNode>(N->getOperand(i)))
687 CreateMetadataSlot(Op);
690 void SlotTracker::CreateAttributeSetSlot(AttributeSet AS) {
691 assert(AS.hasAttributes(AttributeSet::FunctionIndex) &&
692 "Doesn't need a slot!");
694 as_iterator I = asMap.find(AS);
695 if (I != asMap.end())
698 unsigned DestSlot = asNext++;
699 asMap[AS] = DestSlot;
702 //===----------------------------------------------------------------------===//
703 // AsmWriter Implementation
704 //===----------------------------------------------------------------------===//
706 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
707 TypePrinting *TypePrinter,
708 SlotTracker *Machine,
709 const Module *Context);
713 static const char *getPredicateText(unsigned predicate) {
714 const char * pred = "unknown";
716 case FCmpInst::FCMP_FALSE: pred = "false"; break;
717 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
718 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
719 case FCmpInst::FCMP_OGE: pred = "oge"; break;
720 case FCmpInst::FCMP_OLT: pred = "olt"; break;
721 case FCmpInst::FCMP_OLE: pred = "ole"; break;
722 case FCmpInst::FCMP_ONE: pred = "one"; break;
723 case FCmpInst::FCMP_ORD: pred = "ord"; break;
724 case FCmpInst::FCMP_UNO: pred = "uno"; break;
725 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
726 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
727 case FCmpInst::FCMP_UGE: pred = "uge"; break;
728 case FCmpInst::FCMP_ULT: pred = "ult"; break;
729 case FCmpInst::FCMP_ULE: pred = "ule"; break;
730 case FCmpInst::FCMP_UNE: pred = "une"; break;
731 case FCmpInst::FCMP_TRUE: pred = "true"; break;
732 case ICmpInst::ICMP_EQ: pred = "eq"; break;
733 case ICmpInst::ICMP_NE: pred = "ne"; break;
734 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
735 case ICmpInst::ICMP_SGE: pred = "sge"; break;
736 case ICmpInst::ICMP_SLT: pred = "slt"; break;
737 case ICmpInst::ICMP_SLE: pred = "sle"; break;
738 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
739 case ICmpInst::ICMP_UGE: pred = "uge"; break;
740 case ICmpInst::ICMP_ULT: pred = "ult"; break;
741 case ICmpInst::ICMP_ULE: pred = "ule"; break;
746 static void writeAtomicRMWOperation(raw_ostream &Out,
747 AtomicRMWInst::BinOp Op) {
749 default: Out << " <unknown operation " << Op << ">"; break;
750 case AtomicRMWInst::Xchg: Out << " xchg"; break;
751 case AtomicRMWInst::Add: Out << " add"; break;
752 case AtomicRMWInst::Sub: Out << " sub"; break;
753 case AtomicRMWInst::And: Out << " and"; break;
754 case AtomicRMWInst::Nand: Out << " nand"; break;
755 case AtomicRMWInst::Or: Out << " or"; break;
756 case AtomicRMWInst::Xor: Out << " xor"; break;
757 case AtomicRMWInst::Max: Out << " max"; break;
758 case AtomicRMWInst::Min: Out << " min"; break;
759 case AtomicRMWInst::UMax: Out << " umax"; break;
760 case AtomicRMWInst::UMin: Out << " umin"; break;
764 static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
765 if (const FPMathOperator *FPO = dyn_cast<const FPMathOperator>(U)) {
766 // Unsafe algebra implies all the others, no need to write them all out
767 if (FPO->hasUnsafeAlgebra())
770 if (FPO->hasNoNaNs())
772 if (FPO->hasNoInfs())
774 if (FPO->hasNoSignedZeros())
776 if (FPO->hasAllowReciprocal())
781 if (const OverflowingBinaryOperator *OBO =
782 dyn_cast<OverflowingBinaryOperator>(U)) {
783 if (OBO->hasNoUnsignedWrap())
785 if (OBO->hasNoSignedWrap())
787 } else if (const PossiblyExactOperator *Div =
788 dyn_cast<PossiblyExactOperator>(U)) {
791 } else if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
792 if (GEP->isInBounds())
797 static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
798 TypePrinting &TypePrinter,
799 SlotTracker *Machine,
800 const Module *Context) {
801 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
802 if (CI->getType()->isIntegerTy(1)) {
803 Out << (CI->getZExtValue() ? "true" : "false");
806 Out << CI->getValue();
810 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
811 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle ||
812 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble) {
813 // We would like to output the FP constant value in exponential notation,
814 // but we cannot do this if doing so will lose precision. Check here to
815 // make sure that we only output it in exponential format if we can parse
816 // the value back and get the same value.
819 bool isHalf = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEhalf;
820 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
821 bool isInf = CFP->getValueAPF().isInfinity();
822 bool isNaN = CFP->getValueAPF().isNaN();
823 if (!isHalf && !isInf && !isNaN) {
824 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
825 CFP->getValueAPF().convertToFloat();
826 SmallString<128> StrVal;
827 raw_svector_ostream(StrVal) << Val;
829 // Check to make sure that the stringized number is not some string like
830 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
831 // that the string matches the "[-+]?[0-9]" regex.
833 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
834 ((StrVal[0] == '-' || StrVal[0] == '+') &&
835 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
836 // Reparse stringized version!
837 if (APFloat(APFloat::IEEEdouble, StrVal).convertToDouble() == Val) {
843 // Otherwise we could not reparse it to exactly the same value, so we must
844 // output the string in hexadecimal format! Note that loading and storing
845 // floating point types changes the bits of NaNs on some hosts, notably
846 // x86, so we must not use these types.
847 assert(sizeof(double) == sizeof(uint64_t) &&
848 "assuming that double is 64 bits!");
850 APFloat apf = CFP->getValueAPF();
851 // Halves and floats are represented in ASCII IR as double, convert.
853 apf.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
856 utohex_buffer(uint64_t(apf.bitcastToAPInt().getZExtValue()),
861 // Either half, or some form of long double.
862 // These appear as a magic letter identifying the type, then a
863 // fixed number of hex digits.
865 // Bit position, in the current word, of the next nibble to print.
868 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended) {
870 // api needed to prevent premature destruction
871 APInt api = CFP->getValueAPF().bitcastToAPInt();
872 const uint64_t* p = api.getRawData();
873 uint64_t word = p[1];
875 int width = api.getBitWidth();
876 for (int j=0; j<width; j+=4, shiftcount-=4) {
877 unsigned int nibble = (word>>shiftcount) & 15;
879 Out << (unsigned char)(nibble + '0');
881 Out << (unsigned char)(nibble - 10 + 'A');
882 if (shiftcount == 0 && j+4 < width) {
886 shiftcount = width-j-4;
890 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad) {
893 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble) {
896 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEhalf) {
900 llvm_unreachable("Unsupported floating point type");
901 // api needed to prevent premature destruction
902 APInt api = CFP->getValueAPF().bitcastToAPInt();
903 const uint64_t* p = api.getRawData();
905 int width = api.getBitWidth();
906 for (int j=0; j<width; j+=4, shiftcount-=4) {
907 unsigned int nibble = (word>>shiftcount) & 15;
909 Out << (unsigned char)(nibble + '0');
911 Out << (unsigned char)(nibble - 10 + 'A');
912 if (shiftcount == 0 && j+4 < width) {
916 shiftcount = width-j-4;
922 if (isa<ConstantAggregateZero>(CV)) {
923 Out << "zeroinitializer";
927 if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
928 Out << "blockaddress(";
929 WriteAsOperandInternal(Out, BA->getFunction(), &TypePrinter, Machine,
932 WriteAsOperandInternal(Out, BA->getBasicBlock(), &TypePrinter, Machine,
938 if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
939 Type *ETy = CA->getType()->getElementType();
941 TypePrinter.print(ETy, Out);
943 WriteAsOperandInternal(Out, CA->getOperand(0),
944 &TypePrinter, Machine,
946 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
948 TypePrinter.print(ETy, Out);
950 WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
957 if (const ConstantDataArray *CA = dyn_cast<ConstantDataArray>(CV)) {
958 // As a special case, print the array as a string if it is an array of
959 // i8 with ConstantInt values.
960 if (CA->isString()) {
962 PrintEscapedString(CA->getAsString(), Out);
967 Type *ETy = CA->getType()->getElementType();
969 TypePrinter.print(ETy, Out);
971 WriteAsOperandInternal(Out, CA->getElementAsConstant(0),
972 &TypePrinter, Machine,
974 for (unsigned i = 1, e = CA->getNumElements(); i != e; ++i) {
976 TypePrinter.print(ETy, Out);
978 WriteAsOperandInternal(Out, CA->getElementAsConstant(i), &TypePrinter,
986 if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
987 if (CS->getType()->isPacked())
990 unsigned N = CS->getNumOperands();
993 TypePrinter.print(CS->getOperand(0)->getType(), Out);
996 WriteAsOperandInternal(Out, CS->getOperand(0), &TypePrinter, Machine,
999 for (unsigned i = 1; i < N; i++) {
1001 TypePrinter.print(CS->getOperand(i)->getType(), Out);
1004 WriteAsOperandInternal(Out, CS->getOperand(i), &TypePrinter, Machine,
1011 if (CS->getType()->isPacked())
1016 if (isa<ConstantVector>(CV) || isa<ConstantDataVector>(CV)) {
1017 Type *ETy = CV->getType()->getVectorElementType();
1019 TypePrinter.print(ETy, Out);
1021 WriteAsOperandInternal(Out, CV->getAggregateElement(0U), &TypePrinter,
1023 for (unsigned i = 1, e = CV->getType()->getVectorNumElements(); i != e;++i){
1025 TypePrinter.print(ETy, Out);
1027 WriteAsOperandInternal(Out, CV->getAggregateElement(i), &TypePrinter,
1034 if (isa<ConstantPointerNull>(CV)) {
1039 if (isa<UndefValue>(CV)) {
1044 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
1045 Out << CE->getOpcodeName();
1046 WriteOptimizationInfo(Out, CE);
1047 if (CE->isCompare())
1048 Out << ' ' << getPredicateText(CE->getPredicate());
1051 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
1052 TypePrinter.print((*OI)->getType(), Out);
1054 WriteAsOperandInternal(Out, *OI, &TypePrinter, Machine, Context);
1055 if (OI+1 != CE->op_end())
1059 if (CE->hasIndices()) {
1060 ArrayRef<unsigned> Indices = CE->getIndices();
1061 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
1062 Out << ", " << Indices[i];
1067 TypePrinter.print(CE->getType(), Out);
1074 Out << "<placeholder or erroneous Constant>";
1077 static void WriteMDNodeBodyInternal(raw_ostream &Out, const MDNode *Node,
1078 TypePrinting *TypePrinter,
1079 SlotTracker *Machine,
1080 const Module *Context) {
1082 for (unsigned mi = 0, me = Node->getNumOperands(); mi != me; ++mi) {
1083 const Value *V = Node->getOperand(mi);
1087 TypePrinter->print(V->getType(), Out);
1089 WriteAsOperandInternal(Out, Node->getOperand(mi),
1090 TypePrinter, Machine, Context);
1100 /// WriteAsOperand - Write the name of the specified value out to the specified
1101 /// ostream. This can be useful when you just want to print int %reg126, not
1102 /// the whole instruction that generated it.
1104 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
1105 TypePrinting *TypePrinter,
1106 SlotTracker *Machine,
1107 const Module *Context) {
1109 PrintLLVMName(Out, V);
1113 const Constant *CV = dyn_cast<Constant>(V);
1114 if (CV && !isa<GlobalValue>(CV)) {
1115 assert(TypePrinter && "Constants require TypePrinting!");
1116 WriteConstantInternal(Out, CV, *TypePrinter, Machine, Context);
1120 if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
1122 if (IA->hasSideEffects())
1123 Out << "sideeffect ";
1124 if (IA->isAlignStack())
1125 Out << "alignstack ";
1126 // We don't emit the AD_ATT dialect as it's the assumed default.
1127 if (IA->getDialect() == InlineAsm::AD_Intel)
1128 Out << "inteldialect ";
1130 PrintEscapedString(IA->getAsmString(), Out);
1132 PrintEscapedString(IA->getConstraintString(), Out);
1137 if (const MDNode *N = dyn_cast<MDNode>(V)) {
1138 if (N->isFunctionLocal()) {
1139 // Print metadata inline, not via slot reference number.
1140 WriteMDNodeBodyInternal(Out, N, TypePrinter, Machine, Context);
1145 if (N->isFunctionLocal())
1146 Machine = new SlotTracker(N->getFunction());
1148 Machine = new SlotTracker(Context);
1150 int Slot = Machine->getMetadataSlot(N);
1158 if (const MDString *MDS = dyn_cast<MDString>(V)) {
1160 PrintEscapedString(MDS->getString(), Out);
1165 if (V->getValueID() == Value::PseudoSourceValueVal ||
1166 V->getValueID() == Value::FixedStackPseudoSourceValueVal) {
1173 // If we have a SlotTracker, use it.
1175 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1176 Slot = Machine->getGlobalSlot(GV);
1179 Slot = Machine->getLocalSlot(V);
1181 // If the local value didn't succeed, then we may be referring to a value
1182 // from a different function. Translate it, as this can happen when using
1183 // address of blocks.
1185 if ((Machine = createSlotTracker(V))) {
1186 Slot = Machine->getLocalSlot(V);
1190 } else if ((Machine = createSlotTracker(V))) {
1191 // Otherwise, create one to get the # and then destroy it.
1192 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1193 Slot = Machine->getGlobalSlot(GV);
1196 Slot = Machine->getLocalSlot(V);
1205 Out << Prefix << Slot;
1210 void llvm::WriteAsOperand(raw_ostream &Out, const Value *V,
1211 bool PrintType, const Module *Context) {
1213 // Fast path: Don't construct and populate a TypePrinting object if we
1214 // won't be needing any types printed.
1216 ((!isa<Constant>(V) && !isa<MDNode>(V)) ||
1217 V->hasName() || isa<GlobalValue>(V))) {
1218 WriteAsOperandInternal(Out, V, 0, 0, Context);
1222 if (Context == 0) Context = getModuleFromVal(V);
1224 TypePrinting TypePrinter;
1226 TypePrinter.incorporateTypes(*Context);
1228 TypePrinter.print(V->getType(), Out);
1232 WriteAsOperandInternal(Out, V, &TypePrinter, 0, Context);
1237 class AssemblyWriter {
1238 formatted_raw_ostream &Out;
1239 SlotTracker &Machine;
1240 const Module *TheModule;
1241 TypePrinting TypePrinter;
1242 AssemblyAnnotationWriter *AnnotationWriter;
1245 inline AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
1247 AssemblyAnnotationWriter *AAW)
1248 : Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
1250 TypePrinter.incorporateTypes(*M);
1253 void printMDNodeBody(const MDNode *MD);
1254 void printNamedMDNode(const NamedMDNode *NMD);
1256 void printModule(const Module *M);
1258 void writeOperand(const Value *Op, bool PrintType);
1259 void writeParamOperand(const Value *Operand, AttributeSet Attrs,unsigned Idx);
1260 void writeAtomic(AtomicOrdering Ordering, SynchronizationScope SynchScope);
1262 void writeAllMDNodes();
1263 void writeAllAttributeGroups();
1265 void printTypeIdentities();
1266 void printGlobal(const GlobalVariable *GV);
1267 void printAlias(const GlobalAlias *GV);
1268 void printFunction(const Function *F);
1269 void printArgument(const Argument *FA, AttributeSet Attrs, unsigned Idx);
1270 void printBasicBlock(const BasicBlock *BB);
1271 void printInstruction(const Instruction &I);
1274 // printInfoComment - Print a little comment after the instruction indicating
1275 // which slot it occupies.
1276 void printInfoComment(const Value &V);
1278 } // end of anonymous namespace
1280 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
1282 Out << "<null operand!>";
1286 TypePrinter.print(Operand->getType(), Out);
1289 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1292 void AssemblyWriter::writeAtomic(AtomicOrdering Ordering,
1293 SynchronizationScope SynchScope) {
1294 if (Ordering == NotAtomic)
1297 switch (SynchScope) {
1298 case SingleThread: Out << " singlethread"; break;
1299 case CrossThread: break;
1303 default: Out << " <bad ordering " << int(Ordering) << ">"; break;
1304 case Unordered: Out << " unordered"; break;
1305 case Monotonic: Out << " monotonic"; break;
1306 case Acquire: Out << " acquire"; break;
1307 case Release: Out << " release"; break;
1308 case AcquireRelease: Out << " acq_rel"; break;
1309 case SequentiallyConsistent: Out << " seq_cst"; break;
1313 void AssemblyWriter::writeParamOperand(const Value *Operand,
1314 AttributeSet Attrs, unsigned Idx) {
1316 Out << "<null operand!>";
1321 TypePrinter.print(Operand->getType(), Out);
1322 // Print parameter attributes list
1323 if (Attrs.hasAttributes(Idx))
1324 Out << ' ' << Attrs.getAsString(Idx);
1326 // Print the operand
1327 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1330 void AssemblyWriter::printModule(const Module *M) {
1331 Machine.initialize();
1333 if (!M->getModuleIdentifier().empty() &&
1334 // Don't print the ID if it will start a new line (which would
1335 // require a comment char before it).
1336 M->getModuleIdentifier().find('\n') == std::string::npos)
1337 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
1339 if (!M->getDataLayout().empty())
1340 Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
1341 if (!M->getTargetTriple().empty())
1342 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
1344 if (!M->getModuleInlineAsm().empty()) {
1345 // Split the string into lines, to make it easier to read the .ll file.
1346 std::string Asm = M->getModuleInlineAsm();
1348 size_t NewLine = Asm.find_first_of('\n', CurPos);
1350 while (NewLine != std::string::npos) {
1351 // We found a newline, print the portion of the asm string from the
1352 // last newline up to this newline.
1353 Out << "module asm \"";
1354 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
1358 NewLine = Asm.find_first_of('\n', CurPos);
1360 std::string rest(Asm.begin()+CurPos, Asm.end());
1361 if (!rest.empty()) {
1362 Out << "module asm \"";
1363 PrintEscapedString(rest, Out);
1368 printTypeIdentities();
1370 // Output all globals.
1371 if (!M->global_empty()) Out << '\n';
1372 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
1374 printGlobal(I); Out << '\n';
1377 // Output all aliases.
1378 if (!M->alias_empty()) Out << "\n";
1379 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
1383 // Output all of the functions.
1384 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
1387 // Output all attribute groups.
1388 if (!OldStyleAttrSyntax && !Machine.as_empty()) {
1390 writeAllAttributeGroups();
1393 // Output named metadata.
1394 if (!M->named_metadata_empty()) Out << '\n';
1396 for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
1397 E = M->named_metadata_end(); I != E; ++I)
1398 printNamedMDNode(I);
1401 if (!Machine.mdn_empty()) {
1407 void AssemblyWriter::printNamedMDNode(const NamedMDNode *NMD) {
1409 StringRef Name = NMD->getName();
1411 Out << "<empty name> ";
1413 if (isalpha(static_cast<unsigned char>(Name[0])) ||
1414 Name[0] == '-' || Name[0] == '$' ||
1415 Name[0] == '.' || Name[0] == '_')
1418 Out << '\\' << hexdigit(Name[0] >> 4) << hexdigit(Name[0] & 0x0F);
1419 for (unsigned i = 1, e = Name.size(); i != e; ++i) {
1420 unsigned char C = Name[i];
1421 if (isalnum(static_cast<unsigned char>(C)) || C == '-' || C == '$' ||
1422 C == '.' || C == '_')
1425 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
1429 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
1431 int Slot = Machine.getMetadataSlot(NMD->getOperand(i));
1441 static void PrintLinkage(GlobalValue::LinkageTypes LT,
1442 formatted_raw_ostream &Out) {
1444 case GlobalValue::ExternalLinkage: break;
1445 case GlobalValue::PrivateLinkage: Out << "private "; break;
1446 case GlobalValue::LinkerPrivateLinkage: Out << "linker_private "; break;
1447 case GlobalValue::LinkerPrivateWeakLinkage:
1448 Out << "linker_private_weak ";
1450 case GlobalValue::InternalLinkage: Out << "internal "; break;
1451 case GlobalValue::LinkOnceAnyLinkage: Out << "linkonce "; break;
1452 case GlobalValue::LinkOnceODRLinkage: Out << "linkonce_odr "; break;
1453 case GlobalValue::LinkOnceODRAutoHideLinkage:
1454 Out << "linkonce_odr_auto_hide ";
1456 case GlobalValue::WeakAnyLinkage: Out << "weak "; break;
1457 case GlobalValue::WeakODRLinkage: Out << "weak_odr "; break;
1458 case GlobalValue::CommonLinkage: Out << "common "; break;
1459 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1460 case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
1461 case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
1462 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1463 case GlobalValue::AvailableExternallyLinkage:
1464 Out << "available_externally ";
1470 static void PrintVisibility(GlobalValue::VisibilityTypes Vis,
1471 formatted_raw_ostream &Out) {
1473 case GlobalValue::DefaultVisibility: break;
1474 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1475 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1479 static void PrintThreadLocalModel(GlobalVariable::ThreadLocalMode TLM,
1480 formatted_raw_ostream &Out) {
1482 case GlobalVariable::NotThreadLocal:
1484 case GlobalVariable::GeneralDynamicTLSModel:
1485 Out << "thread_local ";
1487 case GlobalVariable::LocalDynamicTLSModel:
1488 Out << "thread_local(localdynamic) ";
1490 case GlobalVariable::InitialExecTLSModel:
1491 Out << "thread_local(initialexec) ";
1493 case GlobalVariable::LocalExecTLSModel:
1494 Out << "thread_local(localexec) ";
1499 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
1500 if (GV->isMaterializable())
1501 Out << "; Materializable\n";
1503 WriteAsOperandInternal(Out, GV, &TypePrinter, &Machine, GV->getParent());
1506 if (!GV->hasInitializer() && GV->hasExternalLinkage())
1509 PrintLinkage(GV->getLinkage(), Out);
1510 PrintVisibility(GV->getVisibility(), Out);
1511 PrintThreadLocalModel(GV->getThreadLocalMode(), Out);
1513 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1514 Out << "addrspace(" << AddressSpace << ") ";
1515 if (GV->hasUnnamedAddr()) Out << "unnamed_addr ";
1516 if (GV->isExternallyInitialized()) Out << "externally_initialized ";
1517 Out << (GV->isConstant() ? "constant " : "global ");
1518 TypePrinter.print(GV->getType()->getElementType(), Out);
1520 if (GV->hasInitializer()) {
1522 writeOperand(GV->getInitializer(), false);
1525 if (GV->hasSection()) {
1526 Out << ", section \"";
1527 PrintEscapedString(GV->getSection(), Out);
1530 if (GV->getAlignment())
1531 Out << ", align " << GV->getAlignment();
1533 printInfoComment(*GV);
1536 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1537 if (GA->isMaterializable())
1538 Out << "; Materializable\n";
1540 // Don't crash when dumping partially built GA
1542 Out << "<<nameless>> = ";
1544 PrintLLVMName(Out, GA);
1547 PrintVisibility(GA->getVisibility(), Out);
1551 PrintLinkage(GA->getLinkage(), Out);
1553 const Constant *Aliasee = GA->getAliasee();
1556 TypePrinter.print(GA->getType(), Out);
1557 Out << " <<NULL ALIASEE>>";
1559 writeOperand(Aliasee, !isa<ConstantExpr>(Aliasee));
1562 printInfoComment(*GA);
1566 void AssemblyWriter::printTypeIdentities() {
1567 if (TypePrinter.NumberedTypes.empty() &&
1568 TypePrinter.NamedTypes.empty())
1573 // We know all the numbers that each type is used and we know that it is a
1574 // dense assignment. Convert the map to an index table.
1575 std::vector<StructType*> NumberedTypes(TypePrinter.NumberedTypes.size());
1576 for (DenseMap<StructType*, unsigned>::iterator I =
1577 TypePrinter.NumberedTypes.begin(), E = TypePrinter.NumberedTypes.end();
1579 assert(I->second < NumberedTypes.size() && "Didn't get a dense numbering?");
1580 NumberedTypes[I->second] = I->first;
1583 // Emit all numbered types.
1584 for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i) {
1585 Out << '%' << i << " = type ";
1587 // Make sure we print out at least one level of the type structure, so
1588 // that we do not get %2 = type %2
1589 TypePrinter.printStructBody(NumberedTypes[i], Out);
1593 for (unsigned i = 0, e = TypePrinter.NamedTypes.size(); i != e; ++i) {
1594 PrintLLVMName(Out, TypePrinter.NamedTypes[i]->getName(), LocalPrefix);
1597 // Make sure we print out at least one level of the type structure, so
1598 // that we do not get %FILE = type %FILE
1599 TypePrinter.printStructBody(TypePrinter.NamedTypes[i], Out);
1604 /// printFunction - Print all aspects of a function.
1606 void AssemblyWriter::printFunction(const Function *F) {
1607 // Print out the return type and name.
1610 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1612 if (F->isMaterializable())
1613 Out << "; Materializable\n";
1615 const AttributeSet &Attrs = F->getAttributes();
1616 if (!OldStyleAttrSyntax && Attrs.hasAttributes(AttributeSet::FunctionIndex)) {
1617 AttributeSet AS = Attrs.getFnAttributes();
1618 std::string AttrStr = AS.getAsString(AttributeSet::FunctionIndex, false);
1619 if (!AttrStr.empty())
1620 Out << "; Function Attrs: " << AttrStr << '\n';
1623 if (F->isDeclaration())
1628 PrintLinkage(F->getLinkage(), Out);
1629 PrintVisibility(F->getVisibility(), Out);
1631 // Print the calling convention.
1632 if (F->getCallingConv() != CallingConv::C) {
1633 PrintCallingConv(F->getCallingConv(), Out);
1637 FunctionType *FT = F->getFunctionType();
1638 if (Attrs.hasAttributes(AttributeSet::ReturnIndex))
1639 Out << Attrs.getAsString(AttributeSet::ReturnIndex) << ' ';
1640 TypePrinter.print(F->getReturnType(), Out);
1642 WriteAsOperandInternal(Out, F, &TypePrinter, &Machine, F->getParent());
1644 Machine.incorporateFunction(F);
1646 // Loop over the arguments, printing them...
1649 if (!F->isDeclaration()) {
1650 // If this isn't a declaration, print the argument names as well.
1651 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1653 // Insert commas as we go... the first arg doesn't get a comma
1654 if (I != F->arg_begin()) Out << ", ";
1655 printArgument(I, Attrs, Idx);
1659 // Otherwise, print the types from the function type.
1660 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1661 // Insert commas as we go... the first arg doesn't get a comma
1665 TypePrinter.print(FT->getParamType(i), Out);
1667 if (Attrs.hasAttributes(i+1))
1668 Out << ' ' << Attrs.getAsString(i+1);
1672 // Finish printing arguments...
1673 if (FT->isVarArg()) {
1674 if (FT->getNumParams()) Out << ", ";
1675 Out << "..."; // Output varargs portion of signature!
1678 if (F->hasUnnamedAddr())
1679 Out << " unnamed_addr";
1680 if (!OldStyleAttrSyntax) {
1681 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
1682 Out << " #" << Machine.getAttributeGroupSlot(Attrs.getFnAttributes());
1684 AttributeSet AS = Attrs.getFnAttributes();
1685 std::string AttrStr = AS.getAsString(AttributeSet::FunctionIndex, false);
1686 if (!AttrStr.empty())
1687 Out << ' ' << AttrStr;
1689 if (F->hasSection()) {
1690 Out << " section \"";
1691 PrintEscapedString(F->getSection(), Out);
1694 if (F->getAlignment())
1695 Out << " align " << F->getAlignment();
1697 Out << " gc \"" << F->getGC() << '"';
1698 if (F->isDeclaration()) {
1702 // Output all of the function's basic blocks.
1703 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1709 Machine.purgeFunction();
1712 /// printArgument - This member is called for every argument that is passed into
1713 /// the function. Simply print it out
1715 void AssemblyWriter::printArgument(const Argument *Arg,
1716 AttributeSet Attrs, unsigned Idx) {
1718 TypePrinter.print(Arg->getType(), Out);
1720 // Output parameter attributes list
1721 if (Attrs.hasAttributes(Idx))
1722 Out << ' ' << Attrs.getAsString(Idx);
1724 // Output name, if available...
1725 if (Arg->hasName()) {
1727 PrintLLVMName(Out, Arg);
1731 /// printBasicBlock - This member is called for each basic block in a method.
1733 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1734 if (BB->hasName()) { // Print out the label if it exists...
1736 PrintLLVMName(Out, BB->getName(), LabelPrefix);
1738 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1739 Out << "\n; <label>:";
1740 int Slot = Machine.getLocalSlot(BB);
1747 if (BB->getParent() == 0) {
1748 Out.PadToColumn(50);
1749 Out << "; Error: Block without parent!";
1750 } else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1751 // Output predecessors for the block.
1752 Out.PadToColumn(50);
1754 const_pred_iterator PI = pred_begin(BB), PE = pred_end(BB);
1757 Out << " No predecessors!";
1760 writeOperand(*PI, false);
1761 for (++PI; PI != PE; ++PI) {
1763 writeOperand(*PI, false);
1770 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1772 // Output all of the instructions in the basic block...
1773 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
1774 printInstruction(*I);
1778 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1781 /// printInfoComment - Print a little comment after the instruction indicating
1782 /// which slot it occupies.
1784 void AssemblyWriter::printInfoComment(const Value &V) {
1785 if (AnnotationWriter)
1786 AnnotationWriter->printInfoComment(V, Out);
1789 // This member is called for each Instruction in a function..
1790 void AssemblyWriter::printInstruction(const Instruction &I) {
1791 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1793 // Print out indentation for an instruction.
1796 // Print out name if it exists...
1798 PrintLLVMName(Out, &I);
1800 } else if (!I.getType()->isVoidTy()) {
1801 // Print out the def slot taken.
1802 int SlotNum = Machine.getLocalSlot(&I);
1804 Out << "<badref> = ";
1806 Out << '%' << SlotNum << " = ";
1809 if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall())
1812 // Print out the opcode...
1813 Out << I.getOpcodeName();
1815 // If this is an atomic load or store, print out the atomic marker.
1816 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isAtomic()) ||
1817 (isa<StoreInst>(I) && cast<StoreInst>(I).isAtomic()))
1820 // If this is a volatile operation, print out the volatile marker.
1821 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1822 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile()) ||
1823 (isa<AtomicCmpXchgInst>(I) && cast<AtomicCmpXchgInst>(I).isVolatile()) ||
1824 (isa<AtomicRMWInst>(I) && cast<AtomicRMWInst>(I).isVolatile()))
1827 // Print out optimization information.
1828 WriteOptimizationInfo(Out, &I);
1830 // Print out the compare instruction predicates
1831 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1832 Out << ' ' << getPredicateText(CI->getPredicate());
1834 // Print out the atomicrmw operation
1835 if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I))
1836 writeAtomicRMWOperation(Out, RMWI->getOperation());
1838 // Print out the type of the operands...
1839 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
1841 // Special case conditional branches to swizzle the condition out to the front
1842 if (isa<BranchInst>(I) && cast<BranchInst>(I).isConditional()) {
1843 const BranchInst &BI(cast<BranchInst>(I));
1845 writeOperand(BI.getCondition(), true);
1847 writeOperand(BI.getSuccessor(0), true);
1849 writeOperand(BI.getSuccessor(1), true);
1851 } else if (isa<SwitchInst>(I)) {
1852 const SwitchInst& SI(cast<SwitchInst>(I));
1853 // Special case switch instruction to get formatting nice and correct.
1855 writeOperand(SI.getCondition(), true);
1857 writeOperand(SI.getDefaultDest(), true);
1859 for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end();
1862 writeOperand(i.getCaseValue(), true);
1864 writeOperand(i.getCaseSuccessor(), true);
1867 } else if (isa<IndirectBrInst>(I)) {
1868 // Special case indirectbr instruction to get formatting nice and correct.
1870 writeOperand(Operand, true);
1873 for (unsigned i = 1, e = I.getNumOperands(); i != e; ++i) {
1876 writeOperand(I.getOperand(i), true);
1879 } else if (const PHINode *PN = dyn_cast<PHINode>(&I)) {
1881 TypePrinter.print(I.getType(), Out);
1884 for (unsigned op = 0, Eop = PN->getNumIncomingValues(); op < Eop; ++op) {
1885 if (op) Out << ", ";
1887 writeOperand(PN->getIncomingValue(op), false); Out << ", ";
1888 writeOperand(PN->getIncomingBlock(op), false); Out << " ]";
1890 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1892 writeOperand(I.getOperand(0), true);
1893 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1895 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1897 writeOperand(I.getOperand(0), true); Out << ", ";
1898 writeOperand(I.getOperand(1), true);
1899 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1901 } else if (const LandingPadInst *LPI = dyn_cast<LandingPadInst>(&I)) {
1903 TypePrinter.print(I.getType(), Out);
1904 Out << " personality ";
1905 writeOperand(I.getOperand(0), true); Out << '\n';
1907 if (LPI->isCleanup())
1910 for (unsigned i = 0, e = LPI->getNumClauses(); i != e; ++i) {
1911 if (i != 0 || LPI->isCleanup()) Out << "\n";
1912 if (LPI->isCatch(i))
1917 writeOperand(LPI->getClause(i), true);
1919 } else if (isa<ReturnInst>(I) && !Operand) {
1921 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1922 // Print the calling convention being used.
1923 if (CI->getCallingConv() != CallingConv::C) {
1925 PrintCallingConv(CI->getCallingConv(), Out);
1928 Operand = CI->getCalledValue();
1929 PointerType *PTy = cast<PointerType>(Operand->getType());
1930 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1931 Type *RetTy = FTy->getReturnType();
1932 const AttributeSet &PAL = CI->getAttributes();
1934 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1935 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1937 // If possible, print out the short form of the call instruction. We can
1938 // only do this if the first argument is a pointer to a nonvararg function,
1939 // and if the return type is not a pointer to a function.
1942 if (!FTy->isVarArg() &&
1943 (!RetTy->isPointerTy() ||
1944 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1945 TypePrinter.print(RetTy, Out);
1947 writeOperand(Operand, false);
1949 writeOperand(Operand, true);
1952 for (unsigned op = 0, Eop = CI->getNumArgOperands(); op < Eop; ++op) {
1955 writeParamOperand(CI->getArgOperand(op), PAL, op + 1);
1958 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1959 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
1960 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1961 Operand = II->getCalledValue();
1962 PointerType *PTy = cast<PointerType>(Operand->getType());
1963 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1964 Type *RetTy = FTy->getReturnType();
1965 const AttributeSet &PAL = II->getAttributes();
1967 // Print the calling convention being used.
1968 if (II->getCallingConv() != CallingConv::C) {
1970 PrintCallingConv(II->getCallingConv(), Out);
1973 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1974 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1976 // If possible, print out the short form of the invoke instruction. We can
1977 // only do this if the first argument is a pointer to a nonvararg function,
1978 // and if the return type is not a pointer to a function.
1981 if (!FTy->isVarArg() &&
1982 (!RetTy->isPointerTy() ||
1983 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1984 TypePrinter.print(RetTy, Out);
1986 writeOperand(Operand, false);
1988 writeOperand(Operand, true);
1991 for (unsigned op = 0, Eop = II->getNumArgOperands(); op < Eop; ++op) {
1994 writeParamOperand(II->getArgOperand(op), PAL, op + 1);
1998 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1999 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
2002 writeOperand(II->getNormalDest(), true);
2004 writeOperand(II->getUnwindDest(), true);
2006 } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
2008 TypePrinter.print(AI->getAllocatedType(), Out);
2009 if (!AI->getArraySize() || AI->isArrayAllocation()) {
2011 writeOperand(AI->getArraySize(), true);
2013 if (AI->getAlignment()) {
2014 Out << ", align " << AI->getAlignment();
2016 } else if (isa<CastInst>(I)) {
2019 writeOperand(Operand, true); // Work with broken code
2022 TypePrinter.print(I.getType(), Out);
2023 } else if (isa<VAArgInst>(I)) {
2026 writeOperand(Operand, true); // Work with broken code
2029 TypePrinter.print(I.getType(), Out);
2030 } else if (Operand) { // Print the normal way.
2032 // PrintAllTypes - Instructions who have operands of all the same type
2033 // omit the type from all but the first operand. If the instruction has
2034 // different type operands (for example br), then they are all printed.
2035 bool PrintAllTypes = false;
2036 Type *TheType = Operand->getType();
2038 // Select, Store and ShuffleVector always print all types.
2039 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
2040 || isa<ReturnInst>(I)) {
2041 PrintAllTypes = true;
2043 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
2044 Operand = I.getOperand(i);
2045 // note that Operand shouldn't be null, but the test helps make dump()
2046 // more tolerant of malformed IR
2047 if (Operand && Operand->getType() != TheType) {
2048 PrintAllTypes = true; // We have differing types! Print them all!
2054 if (!PrintAllTypes) {
2056 TypePrinter.print(TheType, Out);
2060 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
2062 writeOperand(I.getOperand(i), PrintAllTypes);
2066 // Print atomic ordering/alignment for memory operations
2067 if (const LoadInst *LI = dyn_cast<LoadInst>(&I)) {
2069 writeAtomic(LI->getOrdering(), LI->getSynchScope());
2070 if (LI->getAlignment())
2071 Out << ", align " << LI->getAlignment();
2072 } else if (const StoreInst *SI = dyn_cast<StoreInst>(&I)) {
2074 writeAtomic(SI->getOrdering(), SI->getSynchScope());
2075 if (SI->getAlignment())
2076 Out << ", align " << SI->getAlignment();
2077 } else if (const AtomicCmpXchgInst *CXI = dyn_cast<AtomicCmpXchgInst>(&I)) {
2078 writeAtomic(CXI->getOrdering(), CXI->getSynchScope());
2079 } else if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I)) {
2080 writeAtomic(RMWI->getOrdering(), RMWI->getSynchScope());
2081 } else if (const FenceInst *FI = dyn_cast<FenceInst>(&I)) {
2082 writeAtomic(FI->getOrdering(), FI->getSynchScope());
2085 // Print Metadata info.
2086 SmallVector<std::pair<unsigned, MDNode*>, 4> InstMD;
2087 I.getAllMetadata(InstMD);
2088 if (!InstMD.empty()) {
2089 SmallVector<StringRef, 8> MDNames;
2090 I.getType()->getContext().getMDKindNames(MDNames);
2091 for (unsigned i = 0, e = InstMD.size(); i != e; ++i) {
2092 unsigned Kind = InstMD[i].first;
2093 if (Kind < MDNames.size()) {
2094 Out << ", !" << MDNames[Kind];
2096 Out << ", !<unknown kind #" << Kind << ">";
2099 WriteAsOperandInternal(Out, InstMD[i].second, &TypePrinter, &Machine,
2103 printInfoComment(I);
2106 static void WriteMDNodeComment(const MDNode *Node,
2107 formatted_raw_ostream &Out) {
2108 if (Node->getNumOperands() < 1)
2111 Value *Op = Node->getOperand(0);
2112 if (!Op || !isa<ConstantInt>(Op) || cast<ConstantInt>(Op)->getBitWidth() < 32)
2115 DIDescriptor Desc(Node);
2119 unsigned Tag = Desc.getTag();
2120 Out.PadToColumn(50);
2121 if (dwarf::TagString(Tag)) {
2124 } else if (Tag == dwarf::DW_TAG_user_base) {
2125 Out << "; [ DW_TAG_user_base ]";
2129 void AssemblyWriter::writeAllMDNodes() {
2130 SmallVector<const MDNode *, 16> Nodes;
2131 Nodes.resize(Machine.mdn_size());
2132 for (SlotTracker::mdn_iterator I = Machine.mdn_begin(), E = Machine.mdn_end();
2134 Nodes[I->second] = cast<MDNode>(I->first);
2136 for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
2137 Out << '!' << i << " = metadata ";
2138 printMDNodeBody(Nodes[i]);
2142 void AssemblyWriter::printMDNodeBody(const MDNode *Node) {
2143 WriteMDNodeBodyInternal(Out, Node, &TypePrinter, &Machine, TheModule);
2144 WriteMDNodeComment(Node, Out);
2148 void AssemblyWriter::writeAllAttributeGroups() {
2149 std::vector<std::pair<AttributeSet, unsigned> > asVec;
2150 asVec.resize(Machine.as_size());
2152 for (SlotTracker::as_iterator I = Machine.as_begin(), E = Machine.as_end();
2154 asVec[I->second] = *I;
2156 for (std::vector<std::pair<AttributeSet, unsigned> >::iterator
2157 I = asVec.begin(), E = asVec.end(); I != E; ++I)
2158 Out << "attributes #" << I->second << " = { "
2159 << I->first.getAsString(AttributeSet::FunctionIndex, true, true)
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); }