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/IR/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 "AsmWriter.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/IR/AssemblyAnnotationWriter.h"
23 #include "llvm/IR/CFG.h"
24 #include "llvm/IR/CallingConv.h"
25 #include "llvm/IR/Constants.h"
26 #include "llvm/IR/DebugInfo.h"
27 #include "llvm/IR/DerivedTypes.h"
28 #include "llvm/IR/IRPrintingPasses.h"
29 #include "llvm/IR/InlineAsm.h"
30 #include "llvm/IR/IntrinsicInst.h"
31 #include "llvm/IR/LLVMContext.h"
32 #include "llvm/IR/Module.h"
33 #include "llvm/IR/Operator.h"
34 #include "llvm/IR/TypeFinder.h"
35 #include "llvm/IR/ValueSymbolTable.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() : nullptr;
56 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
57 return BB->getParent() ? BB->getParent()->getParent() : nullptr;
59 if (const Instruction *I = dyn_cast<Instruction>(V)) {
60 const Function *M = I->getParent() ? I->getParent()->getParent() : nullptr;
61 return M ? M->getParent() : nullptr;
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::WebKit_JS: Out << "webkit_jscc"; break;
75 case CallingConv::AnyReg: Out << "anyregcc"; break;
76 case CallingConv::PreserveMost: Out << "preserve_mostcc"; break;
77 case CallingConv::PreserveAll: Out << "preserve_allcc"; break;
78 case CallingConv::X86_StdCall: Out << "x86_stdcallcc"; break;
79 case CallingConv::X86_FastCall: Out << "x86_fastcallcc"; break;
80 case CallingConv::X86_ThisCall: Out << "x86_thiscallcc"; break;
81 case CallingConv::X86_CDeclMethod:Out << "x86_cdeclmethodcc"; break;
82 case CallingConv::Intel_OCL_BI: Out << "intel_ocl_bicc"; break;
83 case CallingConv::ARM_APCS: Out << "arm_apcscc"; break;
84 case CallingConv::ARM_AAPCS: Out << "arm_aapcscc"; break;
85 case CallingConv::ARM_AAPCS_VFP: Out << "arm_aapcs_vfpcc"; break;
86 case CallingConv::MSP430_INTR: Out << "msp430_intrcc"; break;
87 case CallingConv::PTX_Kernel: Out << "ptx_kernel"; break;
88 case CallingConv::PTX_Device: Out << "ptx_device"; break;
89 case CallingConv::X86_64_SysV: Out << "x86_64_sysvcc"; break;
90 case CallingConv::X86_64_Win64: Out << "x86_64_win64cc"; break;
91 case CallingConv::SPIR_FUNC: Out << "spir_func"; break;
92 case CallingConv::SPIR_KERNEL: Out << "spir_kernel"; break;
96 // PrintEscapedString - Print each character of the specified string, escaping
97 // it if it is not printable or if it is an escape char.
98 static void PrintEscapedString(StringRef Name, raw_ostream &Out) {
99 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
100 unsigned char C = Name[i];
101 if (isprint(C) && C != '\\' && C != '"')
104 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
115 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
116 /// prefixed with % (if the string only contains simple characters) or is
117 /// surrounded with ""'s (if it has special chars in it). Print it out.
118 static void PrintLLVMName(raw_ostream &OS, StringRef Name, PrefixType Prefix) {
119 assert(!Name.empty() && "Cannot get empty name!");
121 case NoPrefix: break;
122 case GlobalPrefix: OS << '@'; break;
123 case LabelPrefix: break;
124 case LocalPrefix: OS << '%'; break;
127 // Scan the name to see if it needs quotes first.
128 bool NeedsQuotes = isdigit(static_cast<unsigned char>(Name[0]));
130 for (unsigned i = 0, e = Name.size(); i != e; ++i) {
131 // By making this unsigned, the value passed in to isalnum will always be
132 // in the range 0-255. This is important when building with MSVC because
133 // its implementation will assert. This situation can arise when dealing
134 // with UTF-8 multibyte characters.
135 unsigned char C = Name[i];
136 if (!isalnum(static_cast<unsigned char>(C)) && C != '-' && C != '.' &&
144 // If we didn't need any quotes, just write out the name in one blast.
150 // Okay, we need quotes. Output the quotes and escape any scary characters as
153 PrintEscapedString(Name, OS);
157 /// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
158 /// prefixed with % (if the string only contains simple characters) or is
159 /// surrounded with ""'s (if it has special chars in it). Print it out.
160 static void PrintLLVMName(raw_ostream &OS, const Value *V) {
161 PrintLLVMName(OS, V->getName(),
162 isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
168 void TypePrinting::incorporateTypes(const Module &M) {
169 NamedTypes.run(M, false);
171 // The list of struct types we got back includes all the struct types, split
172 // the unnamed ones out to a numbering and remove the anonymous structs.
173 unsigned NextNumber = 0;
175 std::vector<StructType*>::iterator NextToUse = NamedTypes.begin(), I, E;
176 for (I = NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) {
177 StructType *STy = *I;
179 // Ignore anonymous types.
180 if (STy->isLiteral())
183 if (STy->getName().empty())
184 NumberedTypes[STy] = NextNumber++;
189 NamedTypes.erase(NextToUse, NamedTypes.end());
193 /// CalcTypeName - Write the specified type to the specified raw_ostream, making
194 /// use of type names or up references to shorten the type name where possible.
195 void TypePrinting::print(Type *Ty, raw_ostream &OS) {
196 switch (Ty->getTypeID()) {
197 case Type::VoidTyID: OS << "void"; return;
198 case Type::HalfTyID: OS << "half"; return;
199 case Type::FloatTyID: OS << "float"; return;
200 case Type::DoubleTyID: OS << "double"; return;
201 case Type::X86_FP80TyID: OS << "x86_fp80"; return;
202 case Type::FP128TyID: OS << "fp128"; return;
203 case Type::PPC_FP128TyID: OS << "ppc_fp128"; return;
204 case Type::LabelTyID: OS << "label"; return;
205 case Type::MetadataTyID: OS << "metadata"; return;
206 case Type::X86_MMXTyID: OS << "x86_mmx"; return;
207 case Type::IntegerTyID:
208 OS << 'i' << cast<IntegerType>(Ty)->getBitWidth();
211 case Type::FunctionTyID: {
212 FunctionType *FTy = cast<FunctionType>(Ty);
213 print(FTy->getReturnType(), OS);
215 for (FunctionType::param_iterator I = FTy->param_begin(),
216 E = FTy->param_end(); I != E; ++I) {
217 if (I != FTy->param_begin())
221 if (FTy->isVarArg()) {
222 if (FTy->getNumParams()) OS << ", ";
228 case Type::StructTyID: {
229 StructType *STy = cast<StructType>(Ty);
231 if (STy->isLiteral())
232 return printStructBody(STy, OS);
234 if (!STy->getName().empty())
235 return PrintLLVMName(OS, STy->getName(), LocalPrefix);
237 DenseMap<StructType*, unsigned>::iterator I = NumberedTypes.find(STy);
238 if (I != NumberedTypes.end())
239 OS << '%' << I->second;
240 else // Not enumerated, print the hex address.
241 OS << "%\"type " << STy << '\"';
244 case Type::PointerTyID: {
245 PointerType *PTy = cast<PointerType>(Ty);
246 print(PTy->getElementType(), OS);
247 if (unsigned AddressSpace = PTy->getAddressSpace())
248 OS << " addrspace(" << AddressSpace << ')';
252 case Type::ArrayTyID: {
253 ArrayType *ATy = cast<ArrayType>(Ty);
254 OS << '[' << ATy->getNumElements() << " x ";
255 print(ATy->getElementType(), OS);
259 case Type::VectorTyID: {
260 VectorType *PTy = cast<VectorType>(Ty);
261 OS << "<" << PTy->getNumElements() << " x ";
262 print(PTy->getElementType(), OS);
267 llvm_unreachable("Invalid TypeID");
270 void TypePrinting::printStructBody(StructType *STy, raw_ostream &OS) {
271 if (STy->isOpaque()) {
279 if (STy->getNumElements() == 0) {
282 StructType::element_iterator I = STy->element_begin();
285 for (StructType::element_iterator E = STy->element_end(); I != E; ++I) {
296 //===----------------------------------------------------------------------===//
297 // SlotTracker Class: Enumerate slot numbers for unnamed values
298 //===----------------------------------------------------------------------===//
299 /// This class provides computation of slot numbers for LLVM Assembly writing.
303 /// ValueMap - A mapping of Values to slot numbers.
304 typedef DenseMap<const Value*, unsigned> ValueMap;
307 /// TheModule - The module for which we are holding slot numbers.
308 const Module* TheModule;
310 /// TheFunction - The function for which we are holding slot numbers.
311 const Function* TheFunction;
312 bool FunctionProcessed;
314 /// mMap - The slot map for the module level data.
318 /// fMap - The slot map for the function level data.
322 /// mdnMap - Map for MDNodes.
323 DenseMap<const MDNode*, unsigned> mdnMap;
326 /// asMap - The slot map for attribute sets.
327 DenseMap<AttributeSet, unsigned> asMap;
330 /// Construct from a module
331 explicit SlotTracker(const Module *M);
332 /// Construct from a function, starting out in incorp state.
333 explicit SlotTracker(const Function *F);
335 /// Return the slot number of the specified value in it's type
336 /// plane. If something is not in the SlotTracker, return -1.
337 int getLocalSlot(const Value *V);
338 int getGlobalSlot(const GlobalValue *V);
339 int getMetadataSlot(const MDNode *N);
340 int getAttributeGroupSlot(AttributeSet AS);
342 /// If you'd like to deal with a function instead of just a module, use
343 /// this method to get its data into the SlotTracker.
344 void incorporateFunction(const Function *F) {
346 FunctionProcessed = false;
349 /// After calling incorporateFunction, use this method to remove the
350 /// most recently incorporated function from the SlotTracker. This
351 /// will reset the state of the machine back to just the module contents.
352 void purgeFunction();
354 /// MDNode map iterators.
355 typedef DenseMap<const MDNode*, unsigned>::iterator mdn_iterator;
356 mdn_iterator mdn_begin() { return mdnMap.begin(); }
357 mdn_iterator mdn_end() { return mdnMap.end(); }
358 unsigned mdn_size() const { return mdnMap.size(); }
359 bool mdn_empty() const { return mdnMap.empty(); }
361 /// AttributeSet map iterators.
362 typedef DenseMap<AttributeSet, unsigned>::iterator as_iterator;
363 as_iterator as_begin() { return asMap.begin(); }
364 as_iterator as_end() { return asMap.end(); }
365 unsigned as_size() const { return asMap.size(); }
366 bool as_empty() const { return asMap.empty(); }
368 /// This function does the actual initialization.
369 inline void initialize();
371 // Implementation Details
373 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
374 void CreateModuleSlot(const GlobalValue *V);
376 /// CreateMetadataSlot - Insert the specified MDNode* into the slot table.
377 void CreateMetadataSlot(const MDNode *N);
379 /// CreateFunctionSlot - Insert the specified Value* into the slot table.
380 void CreateFunctionSlot(const Value *V);
382 /// \brief Insert the specified AttributeSet into the slot table.
383 void CreateAttributeSetSlot(AttributeSet AS);
385 /// Add all of the module level global variables (and their initializers)
386 /// and function declarations, but not the contents of those functions.
387 void processModule();
389 /// Add all of the functions arguments, basic blocks, and instructions.
390 void processFunction();
392 SlotTracker(const SlotTracker &) LLVM_DELETED_FUNCTION;
393 void operator=(const SlotTracker &) LLVM_DELETED_FUNCTION;
396 SlotTracker *createSlotTracker(const Module *M) {
397 return new SlotTracker(M);
400 static SlotTracker *createSlotTracker(const Value *V) {
401 if (const Argument *FA = dyn_cast<Argument>(V))
402 return new SlotTracker(FA->getParent());
404 if (const Instruction *I = dyn_cast<Instruction>(V))
406 return new SlotTracker(I->getParent()->getParent());
408 if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
409 return new SlotTracker(BB->getParent());
411 if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
412 return new SlotTracker(GV->getParent());
414 if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
415 return new SlotTracker(GA->getParent());
417 if (const Function *Func = dyn_cast<Function>(V))
418 return new SlotTracker(Func);
420 if (const MDNode *MD = dyn_cast<MDNode>(V)) {
421 if (!MD->isFunctionLocal())
422 return new SlotTracker(MD->getFunction());
424 return new SlotTracker((Function *)nullptr);
431 #define ST_DEBUG(X) dbgs() << X
436 // Module level constructor. Causes the contents of the Module (sans functions)
437 // to be added to the slot table.
438 SlotTracker::SlotTracker(const Module *M)
439 : TheModule(M), TheFunction(nullptr), FunctionProcessed(false),
440 mNext(0), fNext(0), mdnNext(0), asNext(0) {
443 // Function level constructor. Causes the contents of the Module and the one
444 // function provided to be added to the slot table.
445 SlotTracker::SlotTracker(const Function *F)
446 : TheModule(F ? F->getParent() : nullptr), TheFunction(F),
447 FunctionProcessed(false), mNext(0), fNext(0), mdnNext(0), asNext(0) {
450 inline void SlotTracker::initialize() {
453 TheModule = nullptr; ///< Prevent re-processing next time we're called.
456 if (TheFunction && !FunctionProcessed)
460 // Iterate through all the global variables, functions, and global
461 // variable initializers and create slots for them.
462 void SlotTracker::processModule() {
463 ST_DEBUG("begin processModule!\n");
465 // Add all of the unnamed global variables to the value table.
466 for (Module::const_global_iterator I = TheModule->global_begin(),
467 E = TheModule->global_end(); I != E; ++I) {
472 // Add metadata used by named metadata.
473 for (Module::const_named_metadata_iterator
474 I = TheModule->named_metadata_begin(),
475 E = TheModule->named_metadata_end(); I != E; ++I) {
476 const NamedMDNode *NMD = I;
477 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
478 CreateMetadataSlot(NMD->getOperand(i));
481 for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
484 // Add all the unnamed functions to the table.
487 // Add all the function attributes to the table.
488 // FIXME: Add attributes of other objects?
489 AttributeSet FnAttrs = I->getAttributes().getFnAttributes();
490 if (FnAttrs.hasAttributes(AttributeSet::FunctionIndex))
491 CreateAttributeSetSlot(FnAttrs);
494 ST_DEBUG("end processModule!\n");
497 // Process the arguments, basic blocks, and instructions of a function.
498 void SlotTracker::processFunction() {
499 ST_DEBUG("begin processFunction!\n");
502 // Add all the function arguments with no names.
503 for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
504 AE = TheFunction->arg_end(); AI != AE; ++AI)
506 CreateFunctionSlot(AI);
508 ST_DEBUG("Inserting Instructions:\n");
510 SmallVector<std::pair<unsigned, MDNode*>, 4> MDForInst;
512 // Add all of the basic blocks and instructions with no names.
513 for (Function::const_iterator BB = TheFunction->begin(),
514 E = TheFunction->end(); BB != E; ++BB) {
516 CreateFunctionSlot(BB);
518 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E;
520 if (!I->getType()->isVoidTy() && !I->hasName())
521 CreateFunctionSlot(I);
523 // Intrinsics can directly use metadata. We allow direct calls to any
524 // llvm.foo function here, because the target may not be linked into the
526 if (const CallInst *CI = dyn_cast<CallInst>(I)) {
527 if (Function *F = CI->getCalledFunction())
528 if (F->isIntrinsic())
529 for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
530 if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i)))
531 CreateMetadataSlot(N);
533 // Add all the call attributes to the table.
534 AttributeSet Attrs = CI->getAttributes().getFnAttributes();
535 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
536 CreateAttributeSetSlot(Attrs);
537 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(I)) {
538 // Add all the call attributes to the table.
539 AttributeSet Attrs = II->getAttributes().getFnAttributes();
540 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
541 CreateAttributeSetSlot(Attrs);
544 // Process metadata attached with this instruction.
545 I->getAllMetadata(MDForInst);
546 for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
547 CreateMetadataSlot(MDForInst[i].second);
552 FunctionProcessed = true;
554 ST_DEBUG("end processFunction!\n");
557 /// Clean up after incorporating a function. This is the only way to get out of
558 /// the function incorporation state that affects get*Slot/Create*Slot. Function
559 /// incorporation state is indicated by TheFunction != 0.
560 void SlotTracker::purgeFunction() {
561 ST_DEBUG("begin purgeFunction!\n");
562 fMap.clear(); // Simply discard the function level map
563 TheFunction = nullptr;
564 FunctionProcessed = false;
565 ST_DEBUG("end purgeFunction!\n");
568 /// getGlobalSlot - Get the slot number of a global value.
569 int SlotTracker::getGlobalSlot(const GlobalValue *V) {
570 // Check for uninitialized state and do lazy initialization.
573 // Find the value in the module map
574 ValueMap::iterator MI = mMap.find(V);
575 return MI == mMap.end() ? -1 : (int)MI->second;
578 /// getMetadataSlot - Get the slot number of a MDNode.
579 int SlotTracker::getMetadataSlot(const MDNode *N) {
580 // Check for uninitialized state and do lazy initialization.
583 // Find the MDNode in the module map
584 mdn_iterator MI = mdnMap.find(N);
585 return MI == mdnMap.end() ? -1 : (int)MI->second;
589 /// getLocalSlot - Get the slot number for a value that is local to a function.
590 int SlotTracker::getLocalSlot(const Value *V) {
591 assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
593 // Check for uninitialized state and do lazy initialization.
596 ValueMap::iterator FI = fMap.find(V);
597 return FI == fMap.end() ? -1 : (int)FI->second;
600 int SlotTracker::getAttributeGroupSlot(AttributeSet AS) {
601 // Check for uninitialized state and do lazy initialization.
604 // Find the AttributeSet in the module map.
605 as_iterator AI = asMap.find(AS);
606 return AI == asMap.end() ? -1 : (int)AI->second;
609 /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
610 void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
611 assert(V && "Can't insert a null Value into SlotTracker!");
612 assert(!V->getType()->isVoidTy() && "Doesn't need a slot!");
613 assert(!V->hasName() && "Doesn't need a slot!");
615 unsigned DestSlot = mNext++;
618 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
620 // G = Global, F = Function, A = Alias, o = other
621 ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
622 (isa<Function>(V) ? 'F' :
623 (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
626 /// CreateSlot - Create a new slot for the specified value if it has no name.
627 void SlotTracker::CreateFunctionSlot(const Value *V) {
628 assert(!V->getType()->isVoidTy() && !V->hasName() && "Doesn't need a slot!");
630 unsigned DestSlot = fNext++;
633 // G = Global, F = Function, o = other
634 ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
635 DestSlot << " [o]\n");
638 /// CreateModuleSlot - Insert the specified MDNode* into the slot table.
639 void SlotTracker::CreateMetadataSlot(const MDNode *N) {
640 assert(N && "Can't insert a null Value into SlotTracker!");
642 // Don't insert if N is a function-local metadata, these are always printed
644 if (!N->isFunctionLocal()) {
645 mdn_iterator I = mdnMap.find(N);
646 if (I != mdnMap.end())
649 unsigned DestSlot = mdnNext++;
650 mdnMap[N] = DestSlot;
653 // Recursively add any MDNodes referenced by operands.
654 for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
655 if (const MDNode *Op = dyn_cast_or_null<MDNode>(N->getOperand(i)))
656 CreateMetadataSlot(Op);
659 void SlotTracker::CreateAttributeSetSlot(AttributeSet AS) {
660 assert(AS.hasAttributes(AttributeSet::FunctionIndex) &&
661 "Doesn't need a slot!");
663 as_iterator I = asMap.find(AS);
664 if (I != asMap.end())
667 unsigned DestSlot = asNext++;
668 asMap[AS] = DestSlot;
671 //===----------------------------------------------------------------------===//
672 // AsmWriter Implementation
673 //===----------------------------------------------------------------------===//
675 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
676 TypePrinting *TypePrinter,
677 SlotTracker *Machine,
678 const Module *Context);
680 static const char *getPredicateText(unsigned predicate) {
681 const char * pred = "unknown";
683 case FCmpInst::FCMP_FALSE: pred = "false"; break;
684 case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
685 case FCmpInst::FCMP_OGT: pred = "ogt"; break;
686 case FCmpInst::FCMP_OGE: pred = "oge"; break;
687 case FCmpInst::FCMP_OLT: pred = "olt"; break;
688 case FCmpInst::FCMP_OLE: pred = "ole"; break;
689 case FCmpInst::FCMP_ONE: pred = "one"; break;
690 case FCmpInst::FCMP_ORD: pred = "ord"; break;
691 case FCmpInst::FCMP_UNO: pred = "uno"; break;
692 case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
693 case FCmpInst::FCMP_UGT: pred = "ugt"; break;
694 case FCmpInst::FCMP_UGE: pred = "uge"; break;
695 case FCmpInst::FCMP_ULT: pred = "ult"; break;
696 case FCmpInst::FCMP_ULE: pred = "ule"; break;
697 case FCmpInst::FCMP_UNE: pred = "une"; break;
698 case FCmpInst::FCMP_TRUE: pred = "true"; break;
699 case ICmpInst::ICMP_EQ: pred = "eq"; break;
700 case ICmpInst::ICMP_NE: pred = "ne"; break;
701 case ICmpInst::ICMP_SGT: pred = "sgt"; break;
702 case ICmpInst::ICMP_SGE: pred = "sge"; break;
703 case ICmpInst::ICMP_SLT: pred = "slt"; break;
704 case ICmpInst::ICMP_SLE: pred = "sle"; break;
705 case ICmpInst::ICMP_UGT: pred = "ugt"; break;
706 case ICmpInst::ICMP_UGE: pred = "uge"; break;
707 case ICmpInst::ICMP_ULT: pred = "ult"; break;
708 case ICmpInst::ICMP_ULE: pred = "ule"; break;
713 static void writeAtomicRMWOperation(raw_ostream &Out,
714 AtomicRMWInst::BinOp Op) {
716 default: Out << " <unknown operation " << Op << ">"; break;
717 case AtomicRMWInst::Xchg: Out << " xchg"; break;
718 case AtomicRMWInst::Add: Out << " add"; break;
719 case AtomicRMWInst::Sub: Out << " sub"; break;
720 case AtomicRMWInst::And: Out << " and"; break;
721 case AtomicRMWInst::Nand: Out << " nand"; break;
722 case AtomicRMWInst::Or: Out << " or"; break;
723 case AtomicRMWInst::Xor: Out << " xor"; break;
724 case AtomicRMWInst::Max: Out << " max"; break;
725 case AtomicRMWInst::Min: Out << " min"; break;
726 case AtomicRMWInst::UMax: Out << " umax"; break;
727 case AtomicRMWInst::UMin: Out << " umin"; break;
731 static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
732 if (const FPMathOperator *FPO = dyn_cast<const FPMathOperator>(U)) {
733 // Unsafe algebra implies all the others, no need to write them all out
734 if (FPO->hasUnsafeAlgebra())
737 if (FPO->hasNoNaNs())
739 if (FPO->hasNoInfs())
741 if (FPO->hasNoSignedZeros())
743 if (FPO->hasAllowReciprocal())
748 if (const OverflowingBinaryOperator *OBO =
749 dyn_cast<OverflowingBinaryOperator>(U)) {
750 if (OBO->hasNoUnsignedWrap())
752 if (OBO->hasNoSignedWrap())
754 } else if (const PossiblyExactOperator *Div =
755 dyn_cast<PossiblyExactOperator>(U)) {
758 } else if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
759 if (GEP->isInBounds())
764 static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
765 TypePrinting &TypePrinter,
766 SlotTracker *Machine,
767 const Module *Context) {
768 if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
769 if (CI->getType()->isIntegerTy(1)) {
770 Out << (CI->getZExtValue() ? "true" : "false");
773 Out << CI->getValue();
777 if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
778 if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle ||
779 &CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble) {
780 // We would like to output the FP constant value in exponential notation,
781 // but we cannot do this if doing so will lose precision. Check here to
782 // make sure that we only output it in exponential format if we can parse
783 // the value back and get the same value.
786 bool isHalf = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEhalf;
787 bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
788 bool isInf = CFP->getValueAPF().isInfinity();
789 bool isNaN = CFP->getValueAPF().isNaN();
790 if (!isHalf && !isInf && !isNaN) {
791 double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
792 CFP->getValueAPF().convertToFloat();
793 SmallString<128> StrVal;
794 raw_svector_ostream(StrVal) << Val;
796 // Check to make sure that the stringized number is not some string like
797 // "Inf" or NaN, that atof will accept, but the lexer will not. Check
798 // that the string matches the "[-+]?[0-9]" regex.
800 if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
801 ((StrVal[0] == '-' || StrVal[0] == '+') &&
802 (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
803 // Reparse stringized version!
804 if (APFloat(APFloat::IEEEdouble, StrVal).convertToDouble() == Val) {
810 // Otherwise we could not reparse it to exactly the same value, so we must
811 // output the string in hexadecimal format! Note that loading and storing
812 // floating point types changes the bits of NaNs on some hosts, notably
813 // x86, so we must not use these types.
814 static_assert(sizeof(double) == sizeof(uint64_t),
815 "assuming that double is 64 bits!");
817 APFloat apf = CFP->getValueAPF();
818 // Halves and floats are represented in ASCII IR as double, convert.
820 apf.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
823 utohex_buffer(uint64_t(apf.bitcastToAPInt().getZExtValue()),
828 // Either half, or some form of long double.
829 // These appear as a magic letter identifying the type, then a
830 // fixed number of hex digits.
832 // Bit position, in the current word, of the next nibble to print.
835 if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended) {
837 // api needed to prevent premature destruction
838 APInt api = CFP->getValueAPF().bitcastToAPInt();
839 const uint64_t* p = api.getRawData();
840 uint64_t word = p[1];
842 int width = api.getBitWidth();
843 for (int j=0; j<width; j+=4, shiftcount-=4) {
844 unsigned int nibble = (word>>shiftcount) & 15;
846 Out << (unsigned char)(nibble + '0');
848 Out << (unsigned char)(nibble - 10 + 'A');
849 if (shiftcount == 0 && j+4 < width) {
853 shiftcount = width-j-4;
857 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad) {
860 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble) {
863 } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEhalf) {
867 llvm_unreachable("Unsupported floating point type");
868 // api needed to prevent premature destruction
869 APInt api = CFP->getValueAPF().bitcastToAPInt();
870 const uint64_t* p = api.getRawData();
872 int width = api.getBitWidth();
873 for (int j=0; j<width; j+=4, shiftcount-=4) {
874 unsigned int nibble = (word>>shiftcount) & 15;
876 Out << (unsigned char)(nibble + '0');
878 Out << (unsigned char)(nibble - 10 + 'A');
879 if (shiftcount == 0 && j+4 < width) {
883 shiftcount = width-j-4;
889 if (isa<ConstantAggregateZero>(CV)) {
890 Out << "zeroinitializer";
894 if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
895 Out << "blockaddress(";
896 WriteAsOperandInternal(Out, BA->getFunction(), &TypePrinter, Machine,
899 WriteAsOperandInternal(Out, BA->getBasicBlock(), &TypePrinter, Machine,
905 if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
906 Type *ETy = CA->getType()->getElementType();
908 TypePrinter.print(ETy, Out);
910 WriteAsOperandInternal(Out, CA->getOperand(0),
911 &TypePrinter, Machine,
913 for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
915 TypePrinter.print(ETy, Out);
917 WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
924 if (const ConstantDataArray *CA = dyn_cast<ConstantDataArray>(CV)) {
925 // As a special case, print the array as a string if it is an array of
926 // i8 with ConstantInt values.
927 if (CA->isString()) {
929 PrintEscapedString(CA->getAsString(), Out);
934 Type *ETy = CA->getType()->getElementType();
936 TypePrinter.print(ETy, Out);
938 WriteAsOperandInternal(Out, CA->getElementAsConstant(0),
939 &TypePrinter, Machine,
941 for (unsigned i = 1, e = CA->getNumElements(); i != e; ++i) {
943 TypePrinter.print(ETy, Out);
945 WriteAsOperandInternal(Out, CA->getElementAsConstant(i), &TypePrinter,
953 if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
954 if (CS->getType()->isPacked())
957 unsigned N = CS->getNumOperands();
960 TypePrinter.print(CS->getOperand(0)->getType(), Out);
963 WriteAsOperandInternal(Out, CS->getOperand(0), &TypePrinter, Machine,
966 for (unsigned i = 1; i < N; i++) {
968 TypePrinter.print(CS->getOperand(i)->getType(), Out);
971 WriteAsOperandInternal(Out, CS->getOperand(i), &TypePrinter, Machine,
978 if (CS->getType()->isPacked())
983 if (isa<ConstantVector>(CV) || isa<ConstantDataVector>(CV)) {
984 Type *ETy = CV->getType()->getVectorElementType();
986 TypePrinter.print(ETy, Out);
988 WriteAsOperandInternal(Out, CV->getAggregateElement(0U), &TypePrinter,
990 for (unsigned i = 1, e = CV->getType()->getVectorNumElements(); i != e;++i){
992 TypePrinter.print(ETy, Out);
994 WriteAsOperandInternal(Out, CV->getAggregateElement(i), &TypePrinter,
1001 if (isa<ConstantPointerNull>(CV)) {
1006 if (isa<UndefValue>(CV)) {
1011 if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
1012 Out << CE->getOpcodeName();
1013 WriteOptimizationInfo(Out, CE);
1014 if (CE->isCompare())
1015 Out << ' ' << getPredicateText(CE->getPredicate());
1018 for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
1019 TypePrinter.print((*OI)->getType(), Out);
1021 WriteAsOperandInternal(Out, *OI, &TypePrinter, Machine, Context);
1022 if (OI+1 != CE->op_end())
1026 if (CE->hasIndices()) {
1027 ArrayRef<unsigned> Indices = CE->getIndices();
1028 for (unsigned i = 0, e = Indices.size(); i != e; ++i)
1029 Out << ", " << Indices[i];
1034 TypePrinter.print(CE->getType(), Out);
1041 Out << "<placeholder or erroneous Constant>";
1044 static void WriteMDNodeBodyInternal(raw_ostream &Out, const MDNode *Node,
1045 TypePrinting *TypePrinter,
1046 SlotTracker *Machine,
1047 const Module *Context) {
1049 for (unsigned mi = 0, me = Node->getNumOperands(); mi != me; ++mi) {
1050 const Value *V = Node->getOperand(mi);
1054 TypePrinter->print(V->getType(), Out);
1056 WriteAsOperandInternal(Out, Node->getOperand(mi),
1057 TypePrinter, Machine, Context);
1066 // Full implementation of printing a Value as an operand with support for
1067 // TypePrinting, etc.
1068 static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
1069 TypePrinting *TypePrinter,
1070 SlotTracker *Machine,
1071 const Module *Context) {
1073 PrintLLVMName(Out, V);
1077 const Constant *CV = dyn_cast<Constant>(V);
1078 if (CV && !isa<GlobalValue>(CV)) {
1079 assert(TypePrinter && "Constants require TypePrinting!");
1080 WriteConstantInternal(Out, CV, *TypePrinter, Machine, Context);
1084 if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
1086 if (IA->hasSideEffects())
1087 Out << "sideeffect ";
1088 if (IA->isAlignStack())
1089 Out << "alignstack ";
1090 // We don't emit the AD_ATT dialect as it's the assumed default.
1091 if (IA->getDialect() == InlineAsm::AD_Intel)
1092 Out << "inteldialect ";
1094 PrintEscapedString(IA->getAsmString(), Out);
1096 PrintEscapedString(IA->getConstraintString(), Out);
1101 if (const MDNode *N = dyn_cast<MDNode>(V)) {
1102 if (N->isFunctionLocal()) {
1103 // Print metadata inline, not via slot reference number.
1104 WriteMDNodeBodyInternal(Out, N, TypePrinter, Machine, Context);
1109 if (N->isFunctionLocal())
1110 Machine = new SlotTracker(N->getFunction());
1112 Machine = new SlotTracker(Context);
1114 int Slot = Machine->getMetadataSlot(N);
1122 if (const MDString *MDS = dyn_cast<MDString>(V)) {
1124 PrintEscapedString(MDS->getString(), Out);
1131 // If we have a SlotTracker, use it.
1133 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1134 Slot = Machine->getGlobalSlot(GV);
1137 Slot = Machine->getLocalSlot(V);
1139 // If the local value didn't succeed, then we may be referring to a value
1140 // from a different function. Translate it, as this can happen when using
1141 // address of blocks.
1143 if ((Machine = createSlotTracker(V))) {
1144 Slot = Machine->getLocalSlot(V);
1148 } else if ((Machine = createSlotTracker(V))) {
1149 // Otherwise, create one to get the # and then destroy it.
1150 if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
1151 Slot = Machine->getGlobalSlot(GV);
1154 Slot = Machine->getLocalSlot(V);
1163 Out << Prefix << Slot;
1168 void AssemblyWriter::init() {
1170 TypePrinter.incorporateTypes(*TheModule);
1174 AssemblyWriter::AssemblyWriter(formatted_raw_ostream &o, SlotTracker &Mac,
1176 AssemblyAnnotationWriter *AAW)
1177 : Out(o), TheModule(M), Machine(Mac), AnnotationWriter(AAW) {
1181 AssemblyWriter::AssemblyWriter(formatted_raw_ostream &o, const Module *M,
1182 AssemblyAnnotationWriter *AAW)
1183 : Out(o), TheModule(M), ModuleSlotTracker(createSlotTracker(M)),
1184 Machine(*ModuleSlotTracker), AnnotationWriter(AAW) {
1188 AssemblyWriter::~AssemblyWriter() { }
1190 void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
1192 Out << "<null operand!>";
1196 TypePrinter.print(Operand->getType(), Out);
1199 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1202 void AssemblyWriter::writeAtomic(AtomicOrdering Ordering,
1203 SynchronizationScope SynchScope) {
1204 if (Ordering == NotAtomic)
1207 switch (SynchScope) {
1208 case SingleThread: Out << " singlethread"; break;
1209 case CrossThread: break;
1213 default: Out << " <bad ordering " << int(Ordering) << ">"; break;
1214 case Unordered: Out << " unordered"; break;
1215 case Monotonic: Out << " monotonic"; break;
1216 case Acquire: Out << " acquire"; break;
1217 case Release: Out << " release"; break;
1218 case AcquireRelease: Out << " acq_rel"; break;
1219 case SequentiallyConsistent: Out << " seq_cst"; break;
1223 void AssemblyWriter::writeAtomicCmpXchg(AtomicOrdering SuccessOrdering,
1224 AtomicOrdering FailureOrdering,
1225 SynchronizationScope SynchScope) {
1226 assert(SuccessOrdering != NotAtomic && FailureOrdering != NotAtomic);
1228 switch (SynchScope) {
1229 case SingleThread: Out << " singlethread"; break;
1230 case CrossThread: break;
1233 switch (SuccessOrdering) {
1234 default: Out << " <bad ordering " << int(SuccessOrdering) << ">"; break;
1235 case Unordered: Out << " unordered"; break;
1236 case Monotonic: Out << " monotonic"; break;
1237 case Acquire: Out << " acquire"; break;
1238 case Release: Out << " release"; break;
1239 case AcquireRelease: Out << " acq_rel"; break;
1240 case SequentiallyConsistent: Out << " seq_cst"; break;
1243 switch (FailureOrdering) {
1244 default: Out << " <bad ordering " << int(FailureOrdering) << ">"; break;
1245 case Unordered: Out << " unordered"; break;
1246 case Monotonic: Out << " monotonic"; break;
1247 case Acquire: Out << " acquire"; break;
1248 case Release: Out << " release"; break;
1249 case AcquireRelease: Out << " acq_rel"; break;
1250 case SequentiallyConsistent: Out << " seq_cst"; break;
1254 void AssemblyWriter::writeParamOperand(const Value *Operand,
1255 AttributeSet Attrs, unsigned Idx) {
1257 Out << "<null operand!>";
1262 TypePrinter.print(Operand->getType(), Out);
1263 // Print parameter attributes list
1264 if (Attrs.hasAttributes(Idx))
1265 Out << ' ' << Attrs.getAsString(Idx);
1267 // Print the operand
1268 WriteAsOperandInternal(Out, Operand, &TypePrinter, &Machine, TheModule);
1271 void AssemblyWriter::printModule(const Module *M) {
1272 Machine.initialize();
1274 if (!M->getModuleIdentifier().empty() &&
1275 // Don't print the ID if it will start a new line (which would
1276 // require a comment char before it).
1277 M->getModuleIdentifier().find('\n') == std::string::npos)
1278 Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
1280 const std::string &DL = M->getDataLayoutStr();
1282 Out << "target datalayout = \"" << DL << "\"\n";
1283 if (!M->getTargetTriple().empty())
1284 Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
1286 if (!M->getModuleInlineAsm().empty()) {
1287 // Split the string into lines, to make it easier to read the .ll file.
1288 std::string Asm = M->getModuleInlineAsm();
1290 size_t NewLine = Asm.find_first_of('\n', CurPos);
1292 while (NewLine != std::string::npos) {
1293 // We found a newline, print the portion of the asm string from the
1294 // last newline up to this newline.
1295 Out << "module asm \"";
1296 PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
1300 NewLine = Asm.find_first_of('\n', CurPos);
1302 std::string rest(Asm.begin()+CurPos, Asm.end());
1303 if (!rest.empty()) {
1304 Out << "module asm \"";
1305 PrintEscapedString(rest, Out);
1310 printTypeIdentities();
1312 // Output all globals.
1313 if (!M->global_empty()) Out << '\n';
1314 for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
1316 printGlobal(I); Out << '\n';
1319 // Output all aliases.
1320 if (!M->alias_empty()) Out << "\n";
1321 for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
1325 // Output all of the functions.
1326 for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
1329 // Output all attribute groups.
1330 if (!Machine.as_empty()) {
1332 writeAllAttributeGroups();
1335 // Output named metadata.
1336 if (!M->named_metadata_empty()) Out << '\n';
1338 for (Module::const_named_metadata_iterator I = M->named_metadata_begin(),
1339 E = M->named_metadata_end(); I != E; ++I)
1340 printNamedMDNode(I);
1343 if (!Machine.mdn_empty()) {
1349 void AssemblyWriter::printNamedMDNode(const NamedMDNode *NMD) {
1351 StringRef Name = NMD->getName();
1353 Out << "<empty name> ";
1355 if (isalpha(static_cast<unsigned char>(Name[0])) ||
1356 Name[0] == '-' || Name[0] == '$' ||
1357 Name[0] == '.' || Name[0] == '_')
1360 Out << '\\' << hexdigit(Name[0] >> 4) << hexdigit(Name[0] & 0x0F);
1361 for (unsigned i = 1, e = Name.size(); i != e; ++i) {
1362 unsigned char C = Name[i];
1363 if (isalnum(static_cast<unsigned char>(C)) || C == '-' || C == '$' ||
1364 C == '.' || C == '_')
1367 Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
1371 for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
1373 int Slot = Machine.getMetadataSlot(NMD->getOperand(i));
1383 static void PrintLinkage(GlobalValue::LinkageTypes LT,
1384 formatted_raw_ostream &Out) {
1386 case GlobalValue::ExternalLinkage: break;
1387 case GlobalValue::PrivateLinkage: Out << "private "; break;
1388 case GlobalValue::InternalLinkage: Out << "internal "; break;
1389 case GlobalValue::LinkOnceAnyLinkage: Out << "linkonce "; break;
1390 case GlobalValue::LinkOnceODRLinkage: Out << "linkonce_odr "; break;
1391 case GlobalValue::WeakAnyLinkage: Out << "weak "; break;
1392 case GlobalValue::WeakODRLinkage: Out << "weak_odr "; break;
1393 case GlobalValue::CommonLinkage: Out << "common "; break;
1394 case GlobalValue::AppendingLinkage: Out << "appending "; break;
1395 case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
1396 case GlobalValue::AvailableExternallyLinkage:
1397 Out << "available_externally ";
1403 static void PrintVisibility(GlobalValue::VisibilityTypes Vis,
1404 formatted_raw_ostream &Out) {
1406 case GlobalValue::DefaultVisibility: break;
1407 case GlobalValue::HiddenVisibility: Out << "hidden "; break;
1408 case GlobalValue::ProtectedVisibility: Out << "protected "; break;
1412 static void PrintDLLStorageClass(GlobalValue::DLLStorageClassTypes SCT,
1413 formatted_raw_ostream &Out) {
1415 case GlobalValue::DefaultStorageClass: break;
1416 case GlobalValue::DLLImportStorageClass: Out << "dllimport "; break;
1417 case GlobalValue::DLLExportStorageClass: Out << "dllexport "; break;
1421 static void PrintThreadLocalModel(GlobalVariable::ThreadLocalMode TLM,
1422 formatted_raw_ostream &Out) {
1424 case GlobalVariable::NotThreadLocal:
1426 case GlobalVariable::GeneralDynamicTLSModel:
1427 Out << "thread_local ";
1429 case GlobalVariable::LocalDynamicTLSModel:
1430 Out << "thread_local(localdynamic) ";
1432 case GlobalVariable::InitialExecTLSModel:
1433 Out << "thread_local(initialexec) ";
1435 case GlobalVariable::LocalExecTLSModel:
1436 Out << "thread_local(localexec) ";
1441 void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
1442 if (GV->isMaterializable())
1443 Out << "; Materializable\n";
1445 WriteAsOperandInternal(Out, GV, &TypePrinter, &Machine, GV->getParent());
1448 if (!GV->hasInitializer() && GV->hasExternalLinkage())
1451 PrintLinkage(GV->getLinkage(), Out);
1452 PrintVisibility(GV->getVisibility(), Out);
1453 PrintDLLStorageClass(GV->getDLLStorageClass(), Out);
1454 PrintThreadLocalModel(GV->getThreadLocalMode(), Out);
1456 if (unsigned AddressSpace = GV->getType()->getAddressSpace())
1457 Out << "addrspace(" << AddressSpace << ") ";
1458 if (GV->hasUnnamedAddr()) Out << "unnamed_addr ";
1459 if (GV->isExternallyInitialized()) Out << "externally_initialized ";
1460 Out << (GV->isConstant() ? "constant " : "global ");
1461 TypePrinter.print(GV->getType()->getElementType(), Out);
1463 if (GV->hasInitializer()) {
1465 writeOperand(GV->getInitializer(), false);
1468 if (GV->hasSection()) {
1469 Out << ", section \"";
1470 PrintEscapedString(GV->getSection(), Out);
1473 if (GV->getAlignment())
1474 Out << ", align " << GV->getAlignment();
1476 printInfoComment(*GV);
1479 void AssemblyWriter::printAlias(const GlobalAlias *GA) {
1480 if (GA->isMaterializable())
1481 Out << "; Materializable\n";
1483 // Don't crash when dumping partially built GA
1485 Out << "<<nameless>> = ";
1487 PrintLLVMName(Out, GA);
1490 PrintVisibility(GA->getVisibility(), Out);
1491 PrintDLLStorageClass(GA->getDLLStorageClass(), Out);
1495 PrintLinkage(GA->getLinkage(), Out);
1497 const Constant *Aliasee = GA->getAliasee();
1500 TypePrinter.print(GA->getType(), Out);
1501 Out << " <<NULL ALIASEE>>";
1503 writeOperand(Aliasee, !isa<ConstantExpr>(Aliasee));
1506 printInfoComment(*GA);
1510 void AssemblyWriter::printTypeIdentities() {
1511 if (TypePrinter.NumberedTypes.empty() &&
1512 TypePrinter.NamedTypes.empty())
1517 // We know all the numbers that each type is used and we know that it is a
1518 // dense assignment. Convert the map to an index table.
1519 std::vector<StructType*> NumberedTypes(TypePrinter.NumberedTypes.size());
1520 for (DenseMap<StructType*, unsigned>::iterator I =
1521 TypePrinter.NumberedTypes.begin(), E = TypePrinter.NumberedTypes.end();
1523 assert(I->second < NumberedTypes.size() && "Didn't get a dense numbering?");
1524 NumberedTypes[I->second] = I->first;
1527 // Emit all numbered types.
1528 for (unsigned i = 0, e = NumberedTypes.size(); i != e; ++i) {
1529 Out << '%' << i << " = type ";
1531 // Make sure we print out at least one level of the type structure, so
1532 // that we do not get %2 = type %2
1533 TypePrinter.printStructBody(NumberedTypes[i], Out);
1537 for (unsigned i = 0, e = TypePrinter.NamedTypes.size(); i != e; ++i) {
1538 PrintLLVMName(Out, TypePrinter.NamedTypes[i]->getName(), LocalPrefix);
1541 // Make sure we print out at least one level of the type structure, so
1542 // that we do not get %FILE = type %FILE
1543 TypePrinter.printStructBody(TypePrinter.NamedTypes[i], Out);
1548 /// printFunction - Print all aspects of a function.
1550 void AssemblyWriter::printFunction(const Function *F) {
1551 // Print out the return type and name.
1554 if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
1556 if (F->isMaterializable())
1557 Out << "; Materializable\n";
1559 const AttributeSet &Attrs = F->getAttributes();
1560 if (Attrs.hasAttributes(AttributeSet::FunctionIndex)) {
1561 AttributeSet AS = Attrs.getFnAttributes();
1562 std::string AttrStr;
1565 for (unsigned E = AS.getNumSlots(); Idx != E; ++Idx)
1566 if (AS.getSlotIndex(Idx) == AttributeSet::FunctionIndex)
1569 for (AttributeSet::iterator I = AS.begin(Idx), E = AS.end(Idx);
1571 Attribute Attr = *I;
1572 if (!Attr.isStringAttribute()) {
1573 if (!AttrStr.empty()) AttrStr += ' ';
1574 AttrStr += Attr.getAsString();
1578 if (!AttrStr.empty())
1579 Out << "; Function Attrs: " << AttrStr << '\n';
1582 if (F->isDeclaration())
1587 PrintLinkage(F->getLinkage(), Out);
1588 PrintVisibility(F->getVisibility(), Out);
1589 PrintDLLStorageClass(F->getDLLStorageClass(), Out);
1591 // Print the calling convention.
1592 if (F->getCallingConv() != CallingConv::C) {
1593 PrintCallingConv(F->getCallingConv(), Out);
1597 FunctionType *FT = F->getFunctionType();
1598 if (Attrs.hasAttributes(AttributeSet::ReturnIndex))
1599 Out << Attrs.getAsString(AttributeSet::ReturnIndex) << ' ';
1600 TypePrinter.print(F->getReturnType(), Out);
1602 WriteAsOperandInternal(Out, F, &TypePrinter, &Machine, F->getParent());
1604 Machine.incorporateFunction(F);
1606 // Loop over the arguments, printing them...
1609 if (!F->isDeclaration()) {
1610 // If this isn't a declaration, print the argument names as well.
1611 for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
1613 // Insert commas as we go... the first arg doesn't get a comma
1614 if (I != F->arg_begin()) Out << ", ";
1615 printArgument(I, Attrs, Idx);
1619 // Otherwise, print the types from the function type.
1620 for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
1621 // Insert commas as we go... the first arg doesn't get a comma
1625 TypePrinter.print(FT->getParamType(i), Out);
1627 if (Attrs.hasAttributes(i+1))
1628 Out << ' ' << Attrs.getAsString(i+1);
1632 // Finish printing arguments...
1633 if (FT->isVarArg()) {
1634 if (FT->getNumParams()) Out << ", ";
1635 Out << "..."; // Output varargs portion of signature!
1638 if (F->hasUnnamedAddr())
1639 Out << " unnamed_addr";
1640 if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
1641 Out << " #" << Machine.getAttributeGroupSlot(Attrs.getFnAttributes());
1642 if (F->hasSection()) {
1643 Out << " section \"";
1644 PrintEscapedString(F->getSection(), Out);
1647 if (F->getAlignment())
1648 Out << " align " << F->getAlignment();
1650 Out << " gc \"" << F->getGC() << '"';
1651 if (F->hasPrefixData()) {
1653 writeOperand(F->getPrefixData(), true);
1655 if (F->isDeclaration()) {
1659 // Output all of the function's basic blocks.
1660 for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
1666 Machine.purgeFunction();
1669 /// printArgument - This member is called for every argument that is passed into
1670 /// the function. Simply print it out
1672 void AssemblyWriter::printArgument(const Argument *Arg,
1673 AttributeSet Attrs, unsigned Idx) {
1675 TypePrinter.print(Arg->getType(), Out);
1677 // Output parameter attributes list
1678 if (Attrs.hasAttributes(Idx))
1679 Out << ' ' << Attrs.getAsString(Idx);
1681 // Output name, if available...
1682 if (Arg->hasName()) {
1684 PrintLLVMName(Out, Arg);
1688 /// printBasicBlock - This member is called for each basic block in a method.
1690 void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
1691 if (BB->hasName()) { // Print out the label if it exists...
1693 PrintLLVMName(Out, BB->getName(), LabelPrefix);
1695 } else if (!BB->use_empty()) { // Don't print block # of no uses...
1696 Out << "\n; <label>:";
1697 int Slot = Machine.getLocalSlot(BB);
1704 if (!BB->getParent()) {
1705 Out.PadToColumn(50);
1706 Out << "; Error: Block without parent!";
1707 } else if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
1708 // Output predecessors for the block.
1709 Out.PadToColumn(50);
1711 const_pred_iterator PI = pred_begin(BB), PE = pred_end(BB);
1714 Out << " No predecessors!";
1717 writeOperand(*PI, false);
1718 for (++PI; PI != PE; ++PI) {
1720 writeOperand(*PI, false);
1727 if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
1729 // Output all of the instructions in the basic block...
1730 for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
1731 printInstructionLine(*I);
1734 if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
1737 /// printInstructionLine - Print an instruction and a newline character.
1738 void AssemblyWriter::printInstructionLine(const Instruction &I) {
1739 printInstruction(I);
1743 /// printInfoComment - Print a little comment after the instruction indicating
1744 /// which slot it occupies.
1746 void AssemblyWriter::printInfoComment(const Value &V) {
1747 if (AnnotationWriter)
1748 AnnotationWriter->printInfoComment(V, Out);
1751 // This member is called for each Instruction in a function..
1752 void AssemblyWriter::printInstruction(const Instruction &I) {
1753 if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
1755 // Print out indentation for an instruction.
1758 // Print out name if it exists...
1760 PrintLLVMName(Out, &I);
1762 } else if (!I.getType()->isVoidTy()) {
1763 // Print out the def slot taken.
1764 int SlotNum = Machine.getLocalSlot(&I);
1766 Out << "<badref> = ";
1768 Out << '%' << SlotNum << " = ";
1771 if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall())
1774 // Print out the opcode...
1775 Out << I.getOpcodeName();
1777 // If this is an atomic load or store, print out the atomic marker.
1778 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isAtomic()) ||
1779 (isa<StoreInst>(I) && cast<StoreInst>(I).isAtomic()))
1782 // If this is a volatile operation, print out the volatile marker.
1783 if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
1784 (isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile()) ||
1785 (isa<AtomicCmpXchgInst>(I) && cast<AtomicCmpXchgInst>(I).isVolatile()) ||
1786 (isa<AtomicRMWInst>(I) && cast<AtomicRMWInst>(I).isVolatile()))
1789 // Print out optimization information.
1790 WriteOptimizationInfo(Out, &I);
1792 // Print out the compare instruction predicates
1793 if (const CmpInst *CI = dyn_cast<CmpInst>(&I))
1794 Out << ' ' << getPredicateText(CI->getPredicate());
1796 // Print out the atomicrmw operation
1797 if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I))
1798 writeAtomicRMWOperation(Out, RMWI->getOperation());
1800 // Print out the type of the operands...
1801 const Value *Operand = I.getNumOperands() ? I.getOperand(0) : nullptr;
1803 // Special case conditional branches to swizzle the condition out to the front
1804 if (isa<BranchInst>(I) && cast<BranchInst>(I).isConditional()) {
1805 const BranchInst &BI(cast<BranchInst>(I));
1807 writeOperand(BI.getCondition(), true);
1809 writeOperand(BI.getSuccessor(0), true);
1811 writeOperand(BI.getSuccessor(1), true);
1813 } else if (isa<SwitchInst>(I)) {
1814 const SwitchInst& SI(cast<SwitchInst>(I));
1815 // Special case switch instruction to get formatting nice and correct.
1817 writeOperand(SI.getCondition(), true);
1819 writeOperand(SI.getDefaultDest(), true);
1821 for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end();
1824 writeOperand(i.getCaseValue(), true);
1826 writeOperand(i.getCaseSuccessor(), true);
1829 } else if (isa<IndirectBrInst>(I)) {
1830 // Special case indirectbr instruction to get formatting nice and correct.
1832 writeOperand(Operand, true);
1835 for (unsigned i = 1, e = I.getNumOperands(); i != e; ++i) {
1838 writeOperand(I.getOperand(i), true);
1841 } else if (const PHINode *PN = dyn_cast<PHINode>(&I)) {
1843 TypePrinter.print(I.getType(), Out);
1846 for (unsigned op = 0, Eop = PN->getNumIncomingValues(); op < Eop; ++op) {
1847 if (op) Out << ", ";
1849 writeOperand(PN->getIncomingValue(op), false); Out << ", ";
1850 writeOperand(PN->getIncomingBlock(op), false); Out << " ]";
1852 } else if (const ExtractValueInst *EVI = dyn_cast<ExtractValueInst>(&I)) {
1854 writeOperand(I.getOperand(0), true);
1855 for (const unsigned *i = EVI->idx_begin(), *e = EVI->idx_end(); i != e; ++i)
1857 } else if (const InsertValueInst *IVI = dyn_cast<InsertValueInst>(&I)) {
1859 writeOperand(I.getOperand(0), true); Out << ", ";
1860 writeOperand(I.getOperand(1), true);
1861 for (const unsigned *i = IVI->idx_begin(), *e = IVI->idx_end(); i != e; ++i)
1863 } else if (const LandingPadInst *LPI = dyn_cast<LandingPadInst>(&I)) {
1865 TypePrinter.print(I.getType(), Out);
1866 Out << " personality ";
1867 writeOperand(I.getOperand(0), true); Out << '\n';
1869 if (LPI->isCleanup())
1872 for (unsigned i = 0, e = LPI->getNumClauses(); i != e; ++i) {
1873 if (i != 0 || LPI->isCleanup()) Out << "\n";
1874 if (LPI->isCatch(i))
1879 writeOperand(LPI->getClause(i), true);
1881 } else if (isa<ReturnInst>(I) && !Operand) {
1883 } else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
1884 // Print the calling convention being used.
1885 if (CI->getCallingConv() != CallingConv::C) {
1887 PrintCallingConv(CI->getCallingConv(), Out);
1890 Operand = CI->getCalledValue();
1891 PointerType *PTy = cast<PointerType>(Operand->getType());
1892 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1893 Type *RetTy = FTy->getReturnType();
1894 const AttributeSet &PAL = CI->getAttributes();
1896 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1897 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1899 // If possible, print out the short form of the call instruction. We can
1900 // only do this if the first argument is a pointer to a nonvararg function,
1901 // and if the return type is not a pointer to a function.
1904 if (!FTy->isVarArg() &&
1905 (!RetTy->isPointerTy() ||
1906 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1907 TypePrinter.print(RetTy, Out);
1909 writeOperand(Operand, false);
1911 writeOperand(Operand, true);
1914 for (unsigned op = 0, Eop = CI->getNumArgOperands(); op < Eop; ++op) {
1917 writeParamOperand(CI->getArgOperand(op), PAL, op + 1);
1920 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1921 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
1922 } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
1923 Operand = II->getCalledValue();
1924 PointerType *PTy = cast<PointerType>(Operand->getType());
1925 FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
1926 Type *RetTy = FTy->getReturnType();
1927 const AttributeSet &PAL = II->getAttributes();
1929 // Print the calling convention being used.
1930 if (II->getCallingConv() != CallingConv::C) {
1932 PrintCallingConv(II->getCallingConv(), Out);
1935 if (PAL.hasAttributes(AttributeSet::ReturnIndex))
1936 Out << ' ' << PAL.getAsString(AttributeSet::ReturnIndex);
1938 // If possible, print out the short form of the invoke instruction. We can
1939 // only do this if the first argument is a pointer to a nonvararg function,
1940 // and if the return type is not a pointer to a function.
1943 if (!FTy->isVarArg() &&
1944 (!RetTy->isPointerTy() ||
1945 !cast<PointerType>(RetTy)->getElementType()->isFunctionTy())) {
1946 TypePrinter.print(RetTy, Out);
1948 writeOperand(Operand, false);
1950 writeOperand(Operand, true);
1953 for (unsigned op = 0, Eop = II->getNumArgOperands(); op < Eop; ++op) {
1956 writeParamOperand(II->getArgOperand(op), PAL, op + 1);
1960 if (PAL.hasAttributes(AttributeSet::FunctionIndex))
1961 Out << " #" << Machine.getAttributeGroupSlot(PAL.getFnAttributes());
1964 writeOperand(II->getNormalDest(), true);
1966 writeOperand(II->getUnwindDest(), true);
1968 } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
1970 if (AI->isUsedWithInAlloca())
1972 TypePrinter.print(AI->getAllocatedType(), Out);
1973 if (!AI->getArraySize() || AI->isArrayAllocation()) {
1975 writeOperand(AI->getArraySize(), true);
1977 if (AI->getAlignment()) {
1978 Out << ", align " << AI->getAlignment();
1980 } else if (isa<CastInst>(I)) {
1983 writeOperand(Operand, true); // Work with broken code
1986 TypePrinter.print(I.getType(), Out);
1987 } else if (isa<VAArgInst>(I)) {
1990 writeOperand(Operand, true); // Work with broken code
1993 TypePrinter.print(I.getType(), Out);
1994 } else if (Operand) { // Print the normal way.
1996 // PrintAllTypes - Instructions who have operands of all the same type
1997 // omit the type from all but the first operand. If the instruction has
1998 // different type operands (for example br), then they are all printed.
1999 bool PrintAllTypes = false;
2000 Type *TheType = Operand->getType();
2002 // Select, Store and ShuffleVector always print all types.
2003 if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)
2004 || isa<ReturnInst>(I)) {
2005 PrintAllTypes = true;
2007 for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
2008 Operand = I.getOperand(i);
2009 // note that Operand shouldn't be null, but the test helps make dump()
2010 // more tolerant of malformed IR
2011 if (Operand && Operand->getType() != TheType) {
2012 PrintAllTypes = true; // We have differing types! Print them all!
2018 if (!PrintAllTypes) {
2020 TypePrinter.print(TheType, Out);
2024 for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
2026 writeOperand(I.getOperand(i), PrintAllTypes);
2030 // Print atomic ordering/alignment for memory operations
2031 if (const LoadInst *LI = dyn_cast<LoadInst>(&I)) {
2033 writeAtomic(LI->getOrdering(), LI->getSynchScope());
2034 if (LI->getAlignment())
2035 Out << ", align " << LI->getAlignment();
2036 } else if (const StoreInst *SI = dyn_cast<StoreInst>(&I)) {
2038 writeAtomic(SI->getOrdering(), SI->getSynchScope());
2039 if (SI->getAlignment())
2040 Out << ", align " << SI->getAlignment();
2041 } else if (const AtomicCmpXchgInst *CXI = dyn_cast<AtomicCmpXchgInst>(&I)) {
2042 writeAtomicCmpXchg(CXI->getSuccessOrdering(), CXI->getFailureOrdering(),
2043 CXI->getSynchScope());
2044 } else if (const AtomicRMWInst *RMWI = dyn_cast<AtomicRMWInst>(&I)) {
2045 writeAtomic(RMWI->getOrdering(), RMWI->getSynchScope());
2046 } else if (const FenceInst *FI = dyn_cast<FenceInst>(&I)) {
2047 writeAtomic(FI->getOrdering(), FI->getSynchScope());
2050 // Print Metadata info.
2051 SmallVector<std::pair<unsigned, MDNode*>, 4> InstMD;
2052 I.getAllMetadata(InstMD);
2053 if (!InstMD.empty()) {
2054 SmallVector<StringRef, 8> MDNames;
2055 I.getType()->getContext().getMDKindNames(MDNames);
2056 for (unsigned i = 0, e = InstMD.size(); i != e; ++i) {
2057 unsigned Kind = InstMD[i].first;
2058 if (Kind < MDNames.size()) {
2059 Out << ", !" << MDNames[Kind];
2061 Out << ", !<unknown kind #" << Kind << ">";
2064 WriteAsOperandInternal(Out, InstMD[i].second, &TypePrinter, &Machine,
2068 printInfoComment(I);
2071 static void WriteMDNodeComment(const MDNode *Node,
2072 formatted_raw_ostream &Out) {
2073 if (Node->getNumOperands() < 1)
2076 Value *Op = Node->getOperand(0);
2077 if (!Op || !isa<ConstantInt>(Op) || cast<ConstantInt>(Op)->getBitWidth() < 32)
2080 DIDescriptor Desc(Node);
2084 unsigned Tag = Desc.getTag();
2085 Out.PadToColumn(50);
2086 if (dwarf::TagString(Tag)) {
2089 } else if (Tag == dwarf::DW_TAG_user_base) {
2090 Out << "; [ DW_TAG_user_base ]";
2094 void AssemblyWriter::writeMDNode(unsigned Slot, const MDNode *Node) {
2095 Out << '!' << Slot << " = metadata ";
2096 printMDNodeBody(Node);
2099 void AssemblyWriter::writeAllMDNodes() {
2100 SmallVector<const MDNode *, 16> Nodes;
2101 Nodes.resize(Machine.mdn_size());
2102 for (SlotTracker::mdn_iterator I = Machine.mdn_begin(), E = Machine.mdn_end();
2104 Nodes[I->second] = cast<MDNode>(I->first);
2106 for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
2107 writeMDNode(i, Nodes[i]);
2111 void AssemblyWriter::printMDNodeBody(const MDNode *Node) {
2112 WriteMDNodeBodyInternal(Out, Node, &TypePrinter, &Machine, TheModule);
2113 WriteMDNodeComment(Node, Out);
2117 void AssemblyWriter::writeAllAttributeGroups() {
2118 std::vector<std::pair<AttributeSet, unsigned> > asVec;
2119 asVec.resize(Machine.as_size());
2121 for (SlotTracker::as_iterator I = Machine.as_begin(), E = Machine.as_end();
2123 asVec[I->second] = *I;
2125 for (std::vector<std::pair<AttributeSet, unsigned> >::iterator
2126 I = asVec.begin(), E = asVec.end(); I != E; ++I)
2127 Out << "attributes #" << I->second << " = { "
2128 << I->first.getAsString(AttributeSet::FunctionIndex, true) << " }\n";
2133 //===----------------------------------------------------------------------===//
2134 // External Interface declarations
2135 //===----------------------------------------------------------------------===//
2137 void Module::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2138 SlotTracker SlotTable(this);
2139 formatted_raw_ostream OS(ROS);
2140 AssemblyWriter W(OS, SlotTable, this, AAW);
2141 W.printModule(this);
2144 void NamedMDNode::print(raw_ostream &ROS, AssemblyAnnotationWriter *AAW) const {
2145 SlotTracker SlotTable(getParent());
2146 formatted_raw_ostream OS(ROS);
2147 AssemblyWriter W(OS, SlotTable, getParent(), AAW);
2148 W.printNamedMDNode(this);
2151 void Type::print(raw_ostream &OS) const {
2153 OS << "<null Type>";
2157 TP.print(const_cast<Type*>(this), OS);
2159 // If the type is a named struct type, print the body as well.
2160 if (StructType *STy = dyn_cast<StructType>(const_cast<Type*>(this)))
2161 if (!STy->isLiteral()) {
2163 TP.printStructBody(STy, OS);
2167 void Value::print(raw_ostream &ROS) const {
2169 ROS << "printing a <null> value\n";
2172 formatted_raw_ostream OS(ROS);
2173 if (const Instruction *I = dyn_cast<Instruction>(this)) {
2174 const Function *F = I->getParent() ? I->getParent()->getParent() : nullptr;
2175 SlotTracker SlotTable(F);
2176 AssemblyWriter W(OS, SlotTable, getModuleFromVal(I), nullptr);
2177 W.printInstruction(*I);
2178 } else if (const BasicBlock *BB = dyn_cast<BasicBlock>(this)) {
2179 SlotTracker SlotTable(BB->getParent());
2180 AssemblyWriter W(OS, SlotTable, getModuleFromVal(BB), nullptr);
2181 W.printBasicBlock(BB);
2182 } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(this)) {
2183 SlotTracker SlotTable(GV->getParent());
2184 AssemblyWriter W(OS, SlotTable, GV->getParent(), nullptr);
2185 if (const GlobalVariable *V = dyn_cast<GlobalVariable>(GV))
2187 else if (const Function *F = dyn_cast<Function>(GV))
2190 W.printAlias(cast<GlobalAlias>(GV));
2191 } else if (const MDNode *N = dyn_cast<MDNode>(this)) {
2192 const Function *F = N->getFunction();
2193 SlotTracker SlotTable(F);
2194 AssemblyWriter W(OS, SlotTable, F ? F->getParent() : nullptr, nullptr);
2195 W.printMDNodeBody(N);
2196 } else if (const Constant *C = dyn_cast<Constant>(this)) {
2197 TypePrinting TypePrinter;
2198 TypePrinter.print(C->getType(), OS);
2200 WriteConstantInternal(OS, C, TypePrinter, nullptr, nullptr);
2201 } else if (isa<InlineAsm>(this) || isa<MDString>(this) ||
2202 isa<Argument>(this)) {
2203 this->printAsOperand(OS);
2205 // Otherwise we don't know what it is. Call the virtual function to
2206 // allow a subclass to print itself.
2211 void Value::printAsOperand(raw_ostream &O, bool PrintType, const Module *M) const {
2212 // Fast path: Don't construct and populate a TypePrinting object if we
2213 // won't be needing any types printed.
2215 ((!isa<Constant>(this) && !isa<MDNode>(this)) ||
2216 hasName() || isa<GlobalValue>(this))) {
2217 WriteAsOperandInternal(O, this, nullptr, nullptr, M);
2222 M = getModuleFromVal(this);
2224 TypePrinting TypePrinter;
2226 TypePrinter.incorporateTypes(*M);
2228 TypePrinter.print(getType(), O);
2232 WriteAsOperandInternal(O, this, &TypePrinter, nullptr, M);
2235 // Value::printCustom - subclasses should override this to implement printing.
2236 void Value::printCustom(raw_ostream &OS) const {
2237 llvm_unreachable("Unknown value to print out!");
2240 // Value::dump - allow easy printing of Values from the debugger.
2241 void Value::dump() const { print(dbgs()); dbgs() << '\n'; }
2243 // Type::dump - allow easy printing of Types from the debugger.
2244 void Type::dump() const { print(dbgs()); }
2246 // Module::dump() - Allow printing of Modules from the debugger.
2247 void Module::dump() const { print(dbgs(), nullptr); }
2249 // NamedMDNode::dump() - Allow printing of NamedMDNodes from the debugger.
2250 void NamedMDNode::dump() const { print(dbgs(), nullptr); }