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+//===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This library implements the functionality defined in llvm/Assembly/Writer.h
+//
+// Note that these routines must be extremely tolerant of various errors in the
+// LLVM code, because it can be used for debugging transformations.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Assembly/Writer.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Assembly/AssemblyAnnotationWriter.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/CallingConv.h"
+#include "llvm/Constants.h"
+#include "llvm/DebugInfo.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/InlineAsm.h"
+#include "llvm/IntrinsicInst.h"
+#include "llvm/LLVMContext.h"
+#include "llvm/Module.h"
+#include "llvm/Operator.h"
+#include "llvm/Support/CFG.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/TypeFinder.h"
+#include "llvm/ValueSymbolTable.h"
+#include <algorithm>
+#include <cctype>
+using namespace llvm;
+
+// Make virtual table appear in this compilation unit.
+AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
+
+//===----------------------------------------------------------------------===//
+// Helper Functions
+//===----------------------------------------------------------------------===//
+
+static const Module *getModuleFromVal(const Value *V) {
+ if (const Argument *MA = dyn_cast<Argument>(V))
+ return MA->getParent() ? MA->getParent()->getParent() : 0;
+
+ if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
+ return BB->getParent() ? BB->getParent()->getParent() : 0;
+
+ if (const Instruction *I = dyn_cast<Instruction>(V)) {
+ const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
+ return M ? M->getParent() : 0;
+ }
+
+ if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
+ return GV->getParent();
+ return 0;
+}
+
+static void PrintCallingConv(unsigned cc, raw_ostream &Out)
+{
+ switch (cc) {
+ case CallingConv::Fast: Out << "fastcc"; break;
+ case CallingConv::Cold: Out << "coldcc"; break;
+ case CallingConv::X86_StdCall: Out << "x86_stdcallcc"; break;
+ case CallingConv::X86_FastCall: Out << "x86_fastcallcc"; break;
+ case CallingConv::X86_ThisCall: Out << "x86_thiscallcc"; break;
+ case CallingConv::Intel_OCL_BI: Out << "intel_ocl_bicc"; break;
+ case CallingConv::ARM_APCS: Out << "arm_apcscc"; break;
+ case CallingConv::ARM_AAPCS: Out << "arm_aapcscc"; break;
+ case CallingConv::ARM_AAPCS_VFP:Out << "arm_aapcs_vfpcc"; break;
+ case CallingConv::MSP430_INTR: Out << "msp430_intrcc"; break;
+ case CallingConv::PTX_Kernel: Out << "ptx_kernel"; break;
+ case CallingConv::PTX_Device: Out << "ptx_device"; break;
+ default: Out << "cc" << cc; break;
+ }
+}
+
+// PrintEscapedString - Print each character of the specified string, escaping
+// it if it is not printable or if it is an escape char.
+static void PrintEscapedString(StringRef Name, raw_ostream &Out) {
+ for (unsigned i = 0, e = Name.size(); i != e; ++i) {
+ unsigned char C = Name[i];
+ if (isprint(C) && C != '\\' && C != '"')
+ Out << C;
+ else
+ Out << '\\' << hexdigit(C >> 4) << hexdigit(C & 0x0F);
+ }
+}
+
+enum PrefixType {
+ GlobalPrefix,
+ LabelPrefix,
+ LocalPrefix,
+ NoPrefix
+};
+
+/// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
+/// prefixed with % (if the string only contains simple characters) or is
+/// surrounded with ""'s (if it has special chars in it). Print it out.
+static void PrintLLVMName(raw_ostream &OS, StringRef Name, PrefixType Prefix) {
+ assert(!Name.empty() && "Cannot get empty name!");
+ switch (Prefix) {
+ case NoPrefix: break;
+ case GlobalPrefix: OS << '@'; break;
+ case LabelPrefix: break;
+ case LocalPrefix: OS << '%'; break;
+ }
+
+ // Scan the name to see if it needs quotes first.
+ bool NeedsQuotes = isdigit(Name[0]);
+ if (!NeedsQuotes) {
+ for (unsigned i = 0, e = Name.size(); i != e; ++i) {
+ // By making this unsigned, the value passed in to isalnum will always be
+ // in the range 0-255. This is important when building with MSVC because
+ // its implementation will assert. This situation can arise when dealing
+ // with UTF-8 multibyte characters.
+ unsigned char C = Name[i];
+ if (!isalnum(C) && C != '-' && C != '.' && C != '_') {
+ NeedsQuotes = true;
+ break;
+ }
+ }
+ }
+
+ // If we didn't need any quotes, just write out the name in one blast.
+ if (!NeedsQuotes) {
+ OS << Name;
+ return;
+ }
+
+ // Okay, we need quotes. Output the quotes and escape any scary characters as
+ // needed.
+ OS << '"';
+ PrintEscapedString(Name, OS);
+ OS << '"';
+}
+
+/// PrintLLVMName - Turn the specified name into an 'LLVM name', which is either
+/// prefixed with % (if the string only contains simple characters) or is
+/// surrounded with ""'s (if it has special chars in it). Print it out.
+static void PrintLLVMName(raw_ostream &OS, const Value *V) {
+ PrintLLVMName(OS, V->getName(),
+ isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
+}
+
+//===----------------------------------------------------------------------===//
+// TypePrinting Class: Type printing machinery
+//===----------------------------------------------------------------------===//
+
+/// TypePrinting - Type printing machinery.
+namespace {
+class TypePrinting {
+ TypePrinting(const TypePrinting &) LLVM_DELETED_FUNCTION;
+ void operator=(const TypePrinting&) LLVM_DELETED_FUNCTION;
+public:
+
+ /// NamedTypes - The named types that are used by the current module.
+ TypeFinder NamedTypes;
+
+ /// NumberedTypes - The numbered types, along with their value.
+ DenseMap<StructType*, unsigned> NumberedTypes;
+
+
+ TypePrinting() {}
+ ~TypePrinting() {}
+
+ void incorporateTypes(const Module &M);
+
+ void print(Type *Ty, raw_ostream &OS);
+
+ void printStructBody(StructType *Ty, raw_ostream &OS);
+};
+} // end anonymous namespace.
+
+
+void TypePrinting::incorporateTypes(const Module &M) {
+ NamedTypes.run(M, false);
+
+ // The list of struct types we got back includes all the struct types, split
+ // the unnamed ones out to a numbering and remove the anonymous structs.
+ unsigned NextNumber = 0;
+
+ std::vector<StructType*>::iterator NextToUse = NamedTypes.begin(), I, E;
+ for (I = NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) {
+ StructType *STy = *I;
+
+ // Ignore anonymous types.
+ if (STy->isLiteral())
+ continue;
+
+ if (STy->getName().empty())
+ NumberedTypes[STy] = NextNumber++;
+ else
+ *NextToUse++ = STy;
+ }
+
+ NamedTypes.erase(NextToUse, NamedTypes.end());
+}
+
+
+/// CalcTypeName - Write the specified type to the specified raw_ostream, making
+/// use of type names or up references to shorten the type name where possible.
+void TypePrinting::print(Type *Ty, raw_ostream &OS) {
+ switch (Ty->getTypeID()) {
+ case Type::VoidTyID: OS << "void"; break;
+ case Type::HalfTyID: OS << "half"; break;
+ case Type::FloatTyID: OS << "float"; break;
+ case Type::DoubleTyID: OS << "double"; break;
+ case Type::X86_FP80TyID: OS << "x86_fp80"; break;
+ case Type::FP128TyID: OS << "fp128"; break;
+ case Type::PPC_FP128TyID: OS << "ppc_fp128"; break;
+ case Type::LabelTyID: OS << "label"; break;
+ case Type::MetadataTyID: OS << "metadata"; break;
+ case Type::X86_MMXTyID: OS << "x86_mmx"; break;
+ case Type::IntegerTyID:
+ OS << 'i' << cast<IntegerType>(Ty)->getBitWidth();
+ return;
+
+ case Type::FunctionTyID: {
+ FunctionType *FTy = cast<FunctionType>(Ty);
+ print(FTy->getReturnType(), OS);
+ OS << " (";
+ for (FunctionType::param_iterator I = FTy->param_begin(),
+ E = FTy->param_end(); I != E; ++I) {
+ if (I != FTy->param_begin())
+ OS << ", ";
+ print(*I, OS);
+ }
+ if (FTy->isVarArg()) {
+ if (FTy->getNumParams()) OS << ", ";
+ OS << "...";
+ }
+ OS << ')';
+ return;
+ }
+ case Type::StructTyID: {
+ StructType *STy = cast<StructType>(Ty);
+
+ if (STy->isLiteral())
+ return printStructBody(STy, OS);
+
+ if (!STy->getName().empty())
+ return PrintLLVMName(OS, STy->getName(), LocalPrefix);
+
+ DenseMap<StructType*, unsigned>::iterator I = NumberedTypes.find(STy);
+ if (I != NumberedTypes.end())
+ OS << '%' << I->second;
+ else // Not enumerated, print the hex address.
+ OS << "%\"type " << STy << '\"';
+ return;
+ }
+ case Type::PointerTyID: {
+ PointerType *PTy = cast<PointerType>(Ty);
+ print(PTy->getElementType(), OS);
+ if (unsigned AddressSpace = PTy->getAddressSpace())
+ OS << " addrspace(" << AddressSpace << ')';
+ OS << '*';
+ return;
+ }
+ case Type::ArrayTyID: {
+ ArrayType *ATy = cast<ArrayType>(Ty);
+ OS << '[' << ATy->getNumElements() << " x ";
+ print(ATy->getElementType(), OS);
+ OS << ']';
+ return;
+ }
+ case Type::VectorTyID: {
+ VectorType *PTy = cast<VectorType>(Ty);
+ OS << "<" << PTy->getNumElements() << " x ";
+ print(PTy->getElementType(), OS);
+ OS << '>';
+ return;
+ }
+ default:
+ OS << "<unrecognized-type>";
+ return;
+ }
+}
+
+void TypePrinting::printStructBody(StructType *STy, raw_ostream &OS) {
+ if (STy->isOpaque()) {
+ OS << "opaque";
+ return;
+ }
+
+ if (STy->isPacked())
+ OS << '<';
+
+ if (STy->getNumElements() == 0) {
+ OS << "{}";
+ } else {
+ StructType::element_iterator I = STy->element_begin();
+ OS << "{ ";
+ print(*I++, OS);
+ for (StructType::element_iterator E = STy->element_end(); I != E; ++I) {
+ OS << ", ";
+ print(*I, OS);
+ }
+
+ OS << " }";
+ }
+ if (STy->isPacked())
+ OS << '>';
+}
+
+
+
+//===----------------------------------------------------------------------===//
+// SlotTracker Class: Enumerate slot numbers for unnamed values
+//===----------------------------------------------------------------------===//
+
+namespace {
+
+/// This class provides computation of slot numbers for LLVM Assembly writing.
+///
+class SlotTracker {
+public:
+ /// ValueMap - A mapping of Values to slot numbers.
+ typedef DenseMap<const Value*, unsigned> ValueMap;
+
+private:
+ /// TheModule - The module for which we are holding slot numbers.
+ const Module* TheModule;
+
+ /// TheFunction - The function for which we are holding slot numbers.
+ const Function* TheFunction;
+ bool FunctionProcessed;
+
+ /// mMap - The slot map for the module level data.
+ ValueMap mMap;
+ unsigned mNext;
+
+ /// fMap - The slot map for the function level data.
+ ValueMap fMap;
+ unsigned fNext;
+
+ /// mdnMap - Map for MDNodes.
+ DenseMap<const MDNode*, unsigned> mdnMap;
+ unsigned mdnNext;
+public:
+ /// Construct from a module
+ explicit SlotTracker(const Module *M);
+ /// Construct from a function, starting out in incorp state.
+ explicit SlotTracker(const Function *F);
+
+ /// Return the slot number of the specified value in it's type
+ /// plane. If something is not in the SlotTracker, return -1.
+ int getLocalSlot(const Value *V);
+ int getGlobalSlot(const GlobalValue *V);
+ int getMetadataSlot(const MDNode *N);
+
+ /// If you'd like to deal with a function instead of just a module, use
+ /// this method to get its data into the SlotTracker.
+ void incorporateFunction(const Function *F) {
+ TheFunction = F;
+ FunctionProcessed = false;
+ }
+
+ /// After calling incorporateFunction, use this method to remove the
+ /// most recently incorporated function from the SlotTracker. This
+ /// will reset the state of the machine back to just the module contents.
+ void purgeFunction();
+
+ /// MDNode map iterators.
+ typedef DenseMap<const MDNode*, unsigned>::iterator mdn_iterator;
+ mdn_iterator mdn_begin() { return mdnMap.begin(); }
+ mdn_iterator mdn_end() { return mdnMap.end(); }
+ unsigned mdn_size() const { return mdnMap.size(); }
+ bool mdn_empty() const { return mdnMap.empty(); }
+
+ /// This function does the actual initialization.
+ inline void initialize();
+
+ // Implementation Details
+private:
+ /// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
+ void CreateModuleSlot(const GlobalValue *V);
+
+ /// CreateMetadataSlot - Insert the specified MDNode* into the slot table.
+ void CreateMetadataSlot(const MDNode *N);
+
+ /// CreateFunctionSlot - Insert the specified Value* into the slot table.
+ void CreateFunctionSlot(const Value *V);
+
+ /// Add all of the module level global variables (and their initializers)
+ /// and function declarations, but not the contents of those functions.
+ void processModule();
+
+ /// Add all of the functions arguments, basic blocks, and instructions.
+ void processFunction();
+
+ SlotTracker(const SlotTracker &) LLVM_DELETED_FUNCTION;
+ void operator=(const SlotTracker &) LLVM_DELETED_FUNCTION;
+};
+
+} // end anonymous namespace
+
+
+static SlotTracker *createSlotTracker(const Value *V) {
+ if (const Argument *FA = dyn_cast<Argument>(V))
+ return new SlotTracker(FA->getParent());
+
+ if (const Instruction *I = dyn_cast<Instruction>(V))
+ if (I->getParent())
+ return new SlotTracker(I->getParent()->getParent());
+
+ if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
+ return new SlotTracker(BB->getParent());
+
+ if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V))
+ return new SlotTracker(GV->getParent());
+
+ if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
+ return new SlotTracker(GA->getParent());
+
+ if (const Function *Func = dyn_cast<Function>(V))
+ return new SlotTracker(Func);
+
+ if (const MDNode *MD = dyn_cast<MDNode>(V)) {
+ if (!MD->isFunctionLocal())
+ return new SlotTracker(MD->getFunction());
+
+ return new SlotTracker((Function *)0);
+ }
+
+ return 0;
+}
+
+#if 0
+#define ST_DEBUG(X) dbgs() << X
+#else
+#define ST_DEBUG(X)
+#endif
+
+// Module level constructor. Causes the contents of the Module (sans functions)
+// to be added to the slot table.
+SlotTracker::SlotTracker(const Module *M)
+ : TheModule(M), TheFunction(0), FunctionProcessed(false),
+ mNext(0), fNext(0), mdnNext(0) {
+}
+
+// Function level constructor. Causes the contents of the Module and the one
+// function provided to be added to the slot table.
+SlotTracker::SlotTracker(const Function *F)
+ : TheModule(F ? F->getParent() : 0), TheFunction(F), FunctionProcessed(false),
+ mNext(0), fNext(0), mdnNext(0) {
+}
+
+inline void SlotTracker::initialize() {
+ if (TheModule) {
+ processModule();
+ TheModule = 0; ///< Prevent re-processing next time we're called.
+ }
+
+ if (TheFunction && !FunctionProcessed)
+ processFunction();
+}
+
+// Iterate through all the global variables, functions, and global
+// variable initializers and create slots for them.
+void SlotTracker::processModule() {
+ ST_DEBUG("begin processModule!\n");
+
+ // Add all of the unnamed global variables to the value table.
+ for (Module::const_global_iterator I = TheModule->global_begin(),
+ E = TheModule->global_end(); I != E; ++I) {
+ if (!I->hasName())
+ CreateModuleSlot(I);
+ }
+
+ // Add metadata used by named metadata.
+ for (Module::const_named_metadata_iterator
+ I = TheModule->named_metadata_begin(),
+ E = TheModule->named_metadata_end(); I != E; ++I) {
+ const NamedMDNode *NMD = I;
+ for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i)
+ CreateMetadataSlot(NMD->getOperand(i));
+ }
+
+ // Add all the unnamed functions to the table.
+ for (Module::const_iterator I = TheModule->begin(), E = TheModule->end();
+ I != E; ++I)
+ if (!I->hasName())
+ CreateModuleSlot(I);
+
+ ST_DEBUG("end processModule!\n");
+}
+
+// Process the arguments, basic blocks, and instructions of a function.
+void SlotTracker::processFunction() {
+ ST_DEBUG("begin processFunction!\n");
+ fNext = 0;
+
+ // Add all the function arguments with no names.
+ for(Function::const_arg_iterator AI = TheFunction->arg_begin(),
+ AE = TheFunction->arg_end(); AI != AE; ++AI)
+ if (!AI->hasName())
+ CreateFunctionSlot(AI);
+
+ ST_DEBUG("Inserting Instructions:\n");
+
+ SmallVector<std::pair<unsigned, MDNode*>, 4> MDForInst;
+
+ // Add all of the basic blocks and instructions with no names.
+ for (Function::const_iterator BB = TheFunction->begin(),
+ E = TheFunction->end(); BB != E; ++BB) {
+ if (!BB->hasName())
+ CreateFunctionSlot(BB);
+
+ for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E;
+ ++I) {
+ if (!I->getType()->isVoidTy() && !I->hasName())
+ CreateFunctionSlot(I);
+
+ // Intrinsics can directly use metadata. We allow direct calls to any
+ // llvm.foo function here, because the target may not be linked into the
+ // optimizer.
+ if (const CallInst *CI = dyn_cast<CallInst>(I)) {
+ if (Function *F = CI->getCalledFunction())
+ if (F->getName().startswith("llvm."))
+ for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
+ if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i)))
+ CreateMetadataSlot(N);
+ }
+
+ // Process metadata attached with this instruction.
+ I->getAllMetadata(MDForInst);
+ for (unsigned i = 0, e = MDForInst.size(); i != e; ++i)
+ CreateMetadataSlot(MDForInst[i].second);
+ MDForInst.clear();
+ }
+ }
+
+ FunctionProcessed = true;
+
+ ST_DEBUG("end processFunction!\n");
+}
+
+/// Clean up after incorporating a function. This is the only way to get out of
+/// the function incorporation state that affects get*Slot/Create*Slot. Function
+/// incorporation state is indicated by TheFunction != 0.
+void SlotTracker::purgeFunction() {
+ ST_DEBUG("begin purgeFunction!\n");
+ fMap.clear(); // Simply discard the function level map
+ TheFunction = 0;
+ FunctionProcessed = false;
+ ST_DEBUG("end purgeFunction!\n");
+}
+
+/// getGlobalSlot - Get the slot number of a global value.
+int SlotTracker::getGlobalSlot(const GlobalValue *V) {
+ // Check for uninitialized state and do lazy initialization.
+ initialize();
+
+ // Find the value in the module map
+ ValueMap::iterator MI = mMap.find(V);
+ return MI == mMap.end() ? -1 : (int)MI->second;
+}
+
+/// getMetadataSlot - Get the slot number of a MDNode.
+int SlotTracker::getMetadataSlot(const MDNode *N) {
+ // Check for uninitialized state and do lazy initialization.
+ initialize();
+
+ // Find the MDNode in the module map
+ mdn_iterator MI = mdnMap.find(N);
+ return MI == mdnMap.end() ? -1 : (int)MI->second;
+}
+
+
+/// getLocalSlot - Get the slot number for a value that is local to a function.
+int SlotTracker::getLocalSlot(const Value *V) {
+ assert(!isa<Constant>(V) && "Can't get a constant or global slot with this!");
+
+ // Check for uninitialized state and do lazy initialization.
+ initialize();
+
+ ValueMap::iterator FI = fMap.find(V);
+ return FI == fMap.end() ? -1 : (int)FI->second;
+}
+
+
+/// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
+void SlotTracker::CreateModuleSlot(const GlobalValue *V) {
+ assert(V && "Can't insert a null Value into SlotTracker!");
+ assert(!V->getType()->isVoidTy() && "Doesn't need a slot!");
+ assert(!V->hasName() && "Doesn't need a slot!");
+
+ unsigned DestSlot = mNext++;
+ mMap[V] = DestSlot;
+
+ ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
+ DestSlot << " [");
+ // G = Global, F = Function, A = Alias, o = other
+ ST_DEBUG((isa<GlobalVariable>(V) ? 'G' :
+ (isa<Function>(V) ? 'F' :
+ (isa<GlobalAlias>(V) ? 'A' : 'o'))) << "]\n");
+}
+
+/// CreateSlot - Create a new slot for the specified value if it has no name.
+void SlotTracker::CreateFunctionSlot(const Value *V) {
+ assert(!V->getType()->isVoidTy() && !V->hasName() && "Doesn't need a slot!");
+
+ unsigned DestSlot = fNext++;
+ fMap[V] = DestSlot;
+
+ // G = Global, F = Function, o = other
+ ST_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
+ DestSlot << " [o]\n");
+}
+
+/// CreateModuleSlot - Insert the specified MDNode* into the slot table.
+void SlotTracker::CreateMetadataSlot(const MDNode *N) {
+ assert(N && "Can't insert a null Value into SlotTracker!");
+
+ // Don't insert if N is a function-local metadata, these are always printed
+ // inline.
+ if (!N->isFunctionLocal()) {
+ mdn_iterator I = mdnMap.find(N);
+ if (I != mdnMap.end())
+ return;
+
+ unsigned DestSlot = mdnNext++;
+ mdnMap[N] = DestSlot;
+ }
+
+ // Recursively add any MDNodes referenced by operands.
+ for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
+ if (const MDNode *Op = dyn_cast_or_null<MDNode>(N->getOperand(i)))
+ CreateMetadataSlot(Op);
+}
+
+//===----------------------------------------------------------------------===//
+// AsmWriter Implementation
+//===----------------------------------------------------------------------===//
+
+static void WriteAsOperandInternal(raw_ostream &Out, const Value *V,
+ TypePrinting *TypePrinter,
+ SlotTracker *Machine,
+ const Module *Context);
+
+
+
+static const char *getPredicateText(unsigned predicate) {
+ const char * pred = "unknown";
+ switch (predicate) {
+ case FCmpInst::FCMP_FALSE: pred = "false"; break;
+ case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
+ case FCmpInst::FCMP_OGT: pred = "ogt"; break;
+ case FCmpInst::FCMP_OGE: pred = "oge"; break;
+ case FCmpInst::FCMP_OLT: pred = "olt"; break;
+ case FCmpInst::FCMP_OLE: pred = "ole"; break;
+ case FCmpInst::FCMP_ONE: pred = "one"; break;
+ case FCmpInst::FCMP_ORD: pred = "ord"; break;
+ case FCmpInst::FCMP_UNO: pred = "uno"; break;
+ case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
+ case FCmpInst::FCMP_UGT: pred = "ugt"; break;
+ case FCmpInst::FCMP_UGE: pred = "uge"; break;
+ case FCmpInst::FCMP_ULT: pred = "ult"; break;
+ case FCmpInst::FCMP_ULE: pred = "ule"; break;
+ case FCmpInst::FCMP_UNE: pred = "une"; break;
+ case FCmpInst::FCMP_TRUE: pred = "true"; break;
+ case ICmpInst::ICMP_EQ: pred = "eq"; break;
+ case ICmpInst::ICMP_NE: pred = "ne"; break;
+ case ICmpInst::ICMP_SGT: pred = "sgt"; break;
+ case ICmpInst::ICMP_SGE: pred = "sge"; break;
+ case ICmpInst::ICMP_SLT: pred = "slt"; break;
+ case ICmpInst::ICMP_SLE: pred = "sle"; break;
+ case ICmpInst::ICMP_UGT: pred = "ugt"; break;
+ case ICmpInst::ICMP_UGE: pred = "uge"; break;
+ case ICmpInst::ICMP_ULT: pred = "ult"; break;
+ case ICmpInst::ICMP_ULE: pred = "ule"; break;
+ }
+ return pred;
+}
+
+static void writeAtomicRMWOperation(raw_ostream &Out,
+ AtomicRMWInst::BinOp Op) {
+ switch (Op) {
+ default: Out << " <unknown operation " << Op << ">"; break;
+ case AtomicRMWInst::Xchg: Out << " xchg"; break;
+ case AtomicRMWInst::Add: Out << " add"; break;
+ case AtomicRMWInst::Sub: Out << " sub"; break;
+ case AtomicRMWInst::And: Out << " and"; break;
+ case AtomicRMWInst::Nand: Out << " nand"; break;
+ case AtomicRMWInst::Or: Out << " or"; break;
+ case AtomicRMWInst::Xor: Out << " xor"; break;
+ case AtomicRMWInst::Max: Out << " max"; break;
+ case AtomicRMWInst::Min: Out << " min"; break;
+ case AtomicRMWInst::UMax: Out << " umax"; break;
+ case AtomicRMWInst::UMin: Out << " umin"; break;
+ }
+}
+
+static void WriteOptimizationInfo(raw_ostream &Out, const User *U) {
+ if (const FPMathOperator *FPO = dyn_cast<const FPMathOperator>(U)) {
+ // Unsafe algebra implies all the others, no need to write them all out
+ if (FPO->hasUnsafeAlgebra())
+ Out << " fast";
+ else {
+ if (FPO->hasNoNaNs())
+ Out << " nnan";
+ if (FPO->hasNoInfs())
+ Out << " ninf";
+ if (FPO->hasNoSignedZeros())
+ Out << " nsz";
+ if (FPO->hasAllowReciprocal())
+ Out << " arcp";
+ }
+ }
+
+ if (const OverflowingBinaryOperator *OBO =
+ dyn_cast<OverflowingBinaryOperator>(U)) {
+ if (OBO->hasNoUnsignedWrap())
+ Out << " nuw";
+ if (OBO->hasNoSignedWrap())
+ Out << " nsw";
+ } else if (const PossiblyExactOperator *Div =
+ dyn_cast<PossiblyExactOperator>(U)) {
+ if (Div->isExact())
+ Out << " exact";
+ } else if (const GEPOperator *GEP = dyn_cast<GEPOperator>(U)) {
+ if (GEP->isInBounds())
+ Out << " inbounds";
+ }
+}
+
+static void WriteConstantInternal(raw_ostream &Out, const Constant *CV,
+ TypePrinting &TypePrinter,
+ SlotTracker *Machine,
+ const Module *Context) {
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
+ if (CI->getType()->isIntegerTy(1)) {
+ Out << (CI->getZExtValue() ? "true" : "false");
+ return;
+ }
+ Out << CI->getValue();
+ return;
+ }
+
+ if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
+ if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle ||
+ &CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble) {
+ // We would like to output the FP constant value in exponential notation,
+ // but we cannot do this if doing so will lose precision. Check here to
+ // make sure that we only output it in exponential format if we can parse
+ // the value back and get the same value.
+ //
+ bool ignored;
+ bool isHalf = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEhalf;
+ bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
+ bool isInf = CFP->getValueAPF().isInfinity();
+ bool isNaN = CFP->getValueAPF().isNaN();
+ if (!isHalf && !isInf && !isNaN) {
+ double Val = isDouble ? CFP->getValueAPF().convertToDouble() :
+ CFP->getValueAPF().convertToFloat();
+ SmallString<128> StrVal;
+ raw_svector_ostream(StrVal) << Val;
+
+ // Check to make sure that the stringized number is not some string like
+ // "Inf" or NaN, that atof will accept, but the lexer will not. Check
+ // that the string matches the "[-+]?[0-9]" regex.
+ //
+ if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
+ ((StrVal[0] == '-' || StrVal[0] == '+') &&
+ (StrVal[1] >= '0' && StrVal[1] <= '9'))) {
+ // Reparse stringized version!
+ if (APFloat(APFloat::IEEEdouble, StrVal).convertToDouble() == Val) {
+ Out << StrVal.str();
+ return;
+ }
+ }
+ }
+ // Otherwise we could not reparse it to exactly the same value, so we must
+ // output the string in hexadecimal format! Note that loading and storing
+ // floating point types changes the bits of NaNs on some hosts, notably
+ // x86, so we must not use these types.
+ assert(sizeof(double) == sizeof(uint64_t) &&
+ "assuming that double is 64 bits!");
+ char Buffer[40];
+ APFloat apf = CFP->getValueAPF();
+ // Halves and floats are represented in ASCII IR as double, convert.
+ if (!isDouble)
+ apf.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven,
+ &ignored);
+ Out << "0x" <<
+ utohex_buffer(uint64_t(apf.bitcastToAPInt().getZExtValue()),
+ Buffer+40);
+ return;
+ }
+
+ // Either half, or some form of long double.
+ // These appear as a magic letter identifying the type, then a
+ // fixed number of hex digits.
+ Out << "0x";
+ // Bit position, in the current word, of the next nibble to print.
+ int shiftcount;
+
+ if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended) {
+ Out << 'K';
+ // api needed to prevent premature destruction
+ APInt api = CFP->getValueAPF().bitcastToAPInt();
+ const uint64_t* p = api.getRawData();
+ uint64_t word = p[1];
+ shiftcount = 12;
+ int width = api.getBitWidth();
+ for (int j=0; j<width; j+=4, shiftcount-=4) {
+ unsigned int nibble = (word>>shiftcount) & 15;
+ if (nibble < 10)
+ Out << (unsigned char)(nibble + '0');
+ else
+ Out << (unsigned char)(nibble - 10 + 'A');
+ if (shiftcount == 0 && j+4 < width) {
+ word = *p;
+ shiftcount = 64;
+ if (width-j-4 < 64)
+ shiftcount = width-j-4;
+ }
+ }
+ return;
+ } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad) {
+ shiftcount = 60;
+ Out << 'L';
+ } else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble) {
+ shiftcount = 60;
+ Out << 'M';
+ } else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEhalf) {
+ shiftcount = 12;
+ Out << 'H';
+ } else
+ llvm_unreachable("Unsupported floating point type");
+ // api needed to prevent premature destruction
+ APInt api = CFP->getValueAPF().bitcastToAPInt();
+ const uint64_t* p = api.getRawData();
+ uint64_t word = *p;
+ int width = api.getBitWidth();
+ for (int j=0; j<width; j+=4, shiftcount-=4) {
+ unsigned int nibble = (word>>shiftcount) & 15;
+ if (nibble < 10)
+ Out << (unsigned char)(nibble + '0');
+ else
+ Out << (unsigned char)(nibble - 10 + 'A');
+ if (shiftcount == 0 && j+4 < width) {
+ word = *(++p);
+ shiftcount = 64;
+ if (width-j-4 < 64)
+ shiftcount = width-j-4;
+ }
+ }
+ return;
+ }
+
+ if (isa<ConstantAggregateZero>(CV)) {
+ Out << "zeroinitializer";
+ return;
+ }
+
+ if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
+ Out << "blockaddress(";
+ WriteAsOperandInternal(Out, BA->getFunction(), &TypePrinter, Machine,
+ Context);
+ Out << ", ";
+ WriteAsOperandInternal(Out, BA->getBasicBlock(), &TypePrinter, Machine,
+ Context);
+ Out << ")";
+ return;
+ }
+
+ if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
+ Type *ETy = CA->getType()->getElementType();
+ Out << '[';
+ TypePrinter.print(ETy, Out);
+ Out << ' ';
+ WriteAsOperandInternal(Out, CA->getOperand(0),
+ &TypePrinter, Machine,
+ Context);
+ for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
+ Out << ", ";
+ TypePrinter.print(ETy, Out);
+ Out << ' ';
+ WriteAsOperandInternal(Out, CA->getOperand(i), &TypePrinter, Machine,
+ Context);
+ }
+ Out << ']';
+ return;
+ }
+
+ if (const ConstantDataArray *CA = dyn_cast<ConstantDataArray>(CV)) {
+ // As a special case, print the array as a string if it is an array of
+ // i8 with ConstantInt values.
+ if (CA->isString()) {
+ Out << "c\"";
+ PrintEscapedString(CA->getAsString(), Out);
+ Out << '"';
+ return;
+ }
+
+ Type *ETy = CA->getType()->getElementType();
+ Out << '[';
+ TypePrinter.print(ETy, Out);
+ Out << ' ';
+ WriteAsOperandInternal(Out, CA->getElementAsConstant(0),
+ &TypePrinter, Machine,
+ Context);
+ for (unsigned i = 1, e = CA->getNumElements(); i != e; ++i) {
+ Out << ", ";
+ TypePrinter.print(ETy, Out);
+ Out << ' ';
+ WriteAsOperandInternal(Out, CA->getElementAsConstant(i), &TypePrinter,
+ Machine, Context);
+ }
+ Out << ']';
+ return;
+ }
+
+
+ if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
+ if (CS->getType()->isPacked())
+ Out << '<';
+ Out << '{';
+ unsigned N = CS->getNumOperands();
+ if (N) {
+ Out << ' ';
+ TypePrinter.print(CS->getOperand(0)->getType(), Out);
+ Out << ' ';
+
+ WriteAsOperandInternal(Out, CS->getOperand(0), &TypePrinter, Machine,
+ Context);
+
+ for (unsigned i = 1; i < N; i++) {
+ Out << ", ";
+ TypePrinter.print(CS->getOperand(i)->getType(), Out);
+ Out << ' ';
+
+ WriteAsOperandInternal(Out, CS->getOperand(i), &TypePrinter, Machine,
+ Context);
+ }
+ Out << ' ';
+ }
+
+ Out << '}';
+ if (CS->getType()->isPacked())
+ Out << '>';
+ return;
+ }
+
+ if (isa<ConstantVector>(CV) || isa<ConstantDataVector>(CV)) {
+ Type *ETy = CV->getType()->getVectorElementType();
+ Out << '<';
+ TypePrinter.print(ETy, Out);
+ Out << ' ';
+ WriteAsOperandInternal(Out, CV->getAggregateElement(0U), &TypePrinter,
+ Machine, Context);
+ for (unsigned i = 1, e = CV->getType()->getVectorNumElements(); i != e;++i){
+ Out << ", ";
+ TypePrinter.print(ETy, Out);
+ Out << ' ';
+ WriteAsOperandInternal(Out, CV->getAggregateElement(i), &TypePrinter,
+ Machine, Context);
+ }
+ Out << '>';
+ return;
+ }
+
+ if (isa<ConstantPointerNull>(CV)) {
+ Out << "null";
+ return;
+ }
+
+ if (isa<UndefValue>(CV)) {
+ Out << "undef";
+ return;
+ }
+
+ if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
+ Out << CE->getOpcodeName();
+ WriteOptimizationInfo(Out, CE);
+ if (CE->isCompare())
+ Out << ' ' << getPredicateText(CE->getPredicate());
+ Out << " (";
+
+ for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
+ TypePrinter.print((*OI)->getType(), Out);
+ Out << ' ';
+ WriteAsOperandInt