mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-19 04:29:21 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
1679 lines
56 KiB
C++
1679 lines
56 KiB
C++
//===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This library implements the functionality defined in llvm/Assembly/Writer.h
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//
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// Note that these routines must be extremely tolerant of various errors in the
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// LLVM code, because it can be used for debugging transformations.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Assembly/Writer.h"
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#include "llvm/Assembly/PrintModulePass.h"
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#include "llvm/Assembly/AsmAnnotationWriter.h"
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#include "llvm/CallingConv.h"
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#include "llvm/Constants.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/ParameterAttributes.h"
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#include "llvm/InlineAsm.h"
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#include "llvm/Instruction.h"
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#include "llvm/Instructions.h"
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#include "llvm/Module.h"
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#include "llvm/ValueSymbolTable.h"
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#include "llvm/TypeSymbolTable.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/CFG.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/Streams.h"
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#include <algorithm>
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#include <cctype>
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using namespace llvm;
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namespace llvm {
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// Make virtual table appear in this compilation unit.
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AssemblyAnnotationWriter::~AssemblyAnnotationWriter() {}
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/// This class provides computation of slot numbers for LLVM Assembly writing.
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/// @brief LLVM Assembly Writing Slot Computation.
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class SlotMachine {
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/// @name Types
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/// @{
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public:
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/// @brief A mapping of Values to slot numbers
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typedef std::map<const Value*,unsigned> ValueMap;
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/// @}
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/// @name Constructors
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/// @{
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public:
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/// @brief Construct from a module
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SlotMachine(const Module *M);
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/// @brief Construct from a function, starting out in incorp state.
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SlotMachine(const Function *F);
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/// @}
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/// @name Accessors
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/// @{
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public:
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/// Return the slot number of the specified value in it's type
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/// plane. If something is not in the SlotMachine, return -1.
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int getLocalSlot(const Value *V);
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int getGlobalSlot(const GlobalValue *V);
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/// @}
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/// @name Mutators
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/// @{
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public:
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/// If you'd like to deal with a function instead of just a module, use
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/// this method to get its data into the SlotMachine.
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void incorporateFunction(const Function *F) {
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TheFunction = F;
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FunctionProcessed = false;
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}
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/// After calling incorporateFunction, use this method to remove the
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/// most recently incorporated function from the SlotMachine. This
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/// will reset the state of the machine back to just the module contents.
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void purgeFunction();
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/// @}
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/// @name Implementation Details
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/// @{
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private:
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/// This function does the actual initialization.
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inline void initialize();
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/// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
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void CreateModuleSlot(const GlobalValue *V);
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/// CreateFunctionSlot - Insert the specified Value* into the slot table.
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void CreateFunctionSlot(const Value *V);
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/// Add all of the module level global variables (and their initializers)
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/// and function declarations, but not the contents of those functions.
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void processModule();
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/// Add all of the functions arguments, basic blocks, and instructions
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void processFunction();
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SlotMachine(const SlotMachine &); // DO NOT IMPLEMENT
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void operator=(const SlotMachine &); // DO NOT IMPLEMENT
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/// @}
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/// @name Data
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/// @{
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public:
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/// @brief The module for which we are holding slot numbers
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const Module* TheModule;
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/// @brief The function for which we are holding slot numbers
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const Function* TheFunction;
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bool FunctionProcessed;
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/// @brief The TypePlanes map for the module level data
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ValueMap mMap;
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unsigned mNext;
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/// @brief The TypePlanes map for the function level data
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ValueMap fMap;
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unsigned fNext;
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/// @}
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};
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} // end namespace llvm
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char PrintModulePass::ID = 0;
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static RegisterPass<PrintModulePass>
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X("printm", "Print module to stderr");
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char PrintFunctionPass::ID = 0;
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static RegisterPass<PrintFunctionPass>
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Y("print","Print function to stderr");
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static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
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std::map<const Type *, std::string> &TypeTable,
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SlotMachine *Machine);
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static const Module *getModuleFromVal(const Value *V) {
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if (const Argument *MA = dyn_cast<Argument>(V))
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return MA->getParent() ? MA->getParent()->getParent() : 0;
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else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V))
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return BB->getParent() ? BB->getParent()->getParent() : 0;
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else if (const Instruction *I = dyn_cast<Instruction>(V)) {
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const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
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return M ? M->getParent() : 0;
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} else if (const GlobalValue *GV = dyn_cast<GlobalValue>(V))
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return GV->getParent();
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return 0;
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}
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static SlotMachine *createSlotMachine(const Value *V) {
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if (const Argument *FA = dyn_cast<Argument>(V)) {
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return new SlotMachine(FA->getParent());
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} else if (const Instruction *I = dyn_cast<Instruction>(V)) {
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return new SlotMachine(I->getParent()->getParent());
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} else if (const BasicBlock *BB = dyn_cast<BasicBlock>(V)) {
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return new SlotMachine(BB->getParent());
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} else if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(V)){
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return new SlotMachine(GV->getParent());
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} else if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(V)){
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return new SlotMachine(GA->getParent());
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} else if (const Function *Func = dyn_cast<Function>(V)) {
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return new SlotMachine(Func);
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}
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return 0;
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}
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/// NameNeedsQuotes - Return true if the specified llvm name should be wrapped
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/// with ""'s.
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static std::string QuoteNameIfNeeded(const std::string &Name) {
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std::string result;
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bool needsQuotes = Name[0] >= '0' && Name[0] <= '9';
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// Scan the name to see if it needs quotes and to replace funky chars with
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// their octal equivalent.
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for (unsigned i = 0, e = Name.size(); i != e; ++i) {
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char C = Name[i];
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assert(C != '"' && "Illegal character in LLVM value name!");
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if (isalnum(C) || C == '-' || C == '.' || C == '_')
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result += C;
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else if (C == '\\') {
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needsQuotes = true;
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result += "\\\\";
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} else if (isprint(C)) {
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needsQuotes = true;
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result += C;
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} else {
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needsQuotes = true;
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result += "\\";
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char hex1 = (C >> 4) & 0x0F;
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if (hex1 < 10)
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result += hex1 + '0';
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else
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result += hex1 - 10 + 'A';
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char hex2 = C & 0x0F;
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if (hex2 < 10)
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result += hex2 + '0';
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else
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result += hex2 - 10 + 'A';
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}
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}
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if (needsQuotes) {
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result.insert(0,"\"");
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result += '"';
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}
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return result;
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}
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enum PrefixType {
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GlobalPrefix,
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LabelPrefix,
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LocalPrefix
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};
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/// getLLVMName - Turn the specified string into an 'LLVM name', which is either
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/// prefixed with % (if the string only contains simple characters) or is
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/// surrounded with ""'s (if it has special chars in it).
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static std::string getLLVMName(const std::string &Name, PrefixType Prefix) {
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assert(!Name.empty() && "Cannot get empty name!");
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switch (Prefix) {
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default: assert(0 && "Bad prefix!");
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case GlobalPrefix: return '@' + QuoteNameIfNeeded(Name);
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case LabelPrefix: return QuoteNameIfNeeded(Name);
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case LocalPrefix: return '%' + QuoteNameIfNeeded(Name);
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}
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}
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/// fillTypeNameTable - If the module has a symbol table, take all global types
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/// and stuff their names into the TypeNames map.
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///
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static void fillTypeNameTable(const Module *M,
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std::map<const Type *, std::string> &TypeNames) {
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if (!M) return;
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const TypeSymbolTable &ST = M->getTypeSymbolTable();
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TypeSymbolTable::const_iterator TI = ST.begin();
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for (; TI != ST.end(); ++TI) {
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// As a heuristic, don't insert pointer to primitive types, because
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// they are used too often to have a single useful name.
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//
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const Type *Ty = cast<Type>(TI->second);
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if (!isa<PointerType>(Ty) ||
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!cast<PointerType>(Ty)->getElementType()->isPrimitiveType() ||
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!cast<PointerType>(Ty)->getElementType()->isInteger() ||
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isa<OpaqueType>(cast<PointerType>(Ty)->getElementType()))
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TypeNames.insert(std::make_pair(Ty, getLLVMName(TI->first, LocalPrefix)));
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}
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}
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static void calcTypeName(const Type *Ty,
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std::vector<const Type *> &TypeStack,
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std::map<const Type *, std::string> &TypeNames,
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std::string & Result){
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if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty))) {
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Result += Ty->getDescription(); // Base case
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return;
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}
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// Check to see if the type is named.
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std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
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if (I != TypeNames.end()) {
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Result += I->second;
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return;
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}
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if (isa<OpaqueType>(Ty)) {
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Result += "opaque";
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return;
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}
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// Check to see if the Type is already on the stack...
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unsigned Slot = 0, CurSize = TypeStack.size();
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while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
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// This is another base case for the recursion. In this case, we know
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// that we have looped back to a type that we have previously visited.
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// Generate the appropriate upreference to handle this.
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if (Slot < CurSize) {
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Result += "\\" + utostr(CurSize-Slot); // Here's the upreference
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return;
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}
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TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
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switch (Ty->getTypeID()) {
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case Type::IntegerTyID: {
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unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
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Result += "i" + utostr(BitWidth);
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break;
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}
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case Type::FunctionTyID: {
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const FunctionType *FTy = cast<FunctionType>(Ty);
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calcTypeName(FTy->getReturnType(), TypeStack, TypeNames, Result);
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Result += " (";
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for (FunctionType::param_iterator I = FTy->param_begin(),
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E = FTy->param_end(); I != E; ++I) {
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if (I != FTy->param_begin())
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Result += ", ";
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calcTypeName(*I, TypeStack, TypeNames, Result);
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}
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if (FTy->isVarArg()) {
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if (FTy->getNumParams()) Result += ", ";
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Result += "...";
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}
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Result += ")";
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break;
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}
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case Type::StructTyID: {
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const StructType *STy = cast<StructType>(Ty);
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if (STy->isPacked())
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Result += '<';
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Result += "{ ";
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for (StructType::element_iterator I = STy->element_begin(),
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E = STy->element_end(); I != E; ++I) {
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if (I != STy->element_begin())
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Result += ", ";
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calcTypeName(*I, TypeStack, TypeNames, Result);
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}
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Result += " }";
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if (STy->isPacked())
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Result += '>';
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break;
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}
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case Type::PointerTyID: {
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const PointerType *PTy = cast<PointerType>(Ty);
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calcTypeName(PTy->getElementType(),
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TypeStack, TypeNames, Result);
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if (unsigned AddressSpace = PTy->getAddressSpace())
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Result += " addrspace(" + utostr(AddressSpace) + ")";
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Result += "*";
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break;
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}
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case Type::ArrayTyID: {
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const ArrayType *ATy = cast<ArrayType>(Ty);
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Result += "[" + utostr(ATy->getNumElements()) + " x ";
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calcTypeName(ATy->getElementType(), TypeStack, TypeNames, Result);
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Result += "]";
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break;
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}
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case Type::VectorTyID: {
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const VectorType *PTy = cast<VectorType>(Ty);
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Result += "<" + utostr(PTy->getNumElements()) + " x ";
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calcTypeName(PTy->getElementType(), TypeStack, TypeNames, Result);
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Result += ">";
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break;
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}
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case Type::OpaqueTyID:
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Result += "opaque";
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break;
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default:
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Result += "<unrecognized-type>";
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break;
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}
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TypeStack.pop_back(); // Remove self from stack...
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}
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/// printTypeInt - The internal guts of printing out a type that has a
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/// potentially named portion.
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///
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static std::ostream &printTypeInt(std::ostream &Out, const Type *Ty,
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std::map<const Type *, std::string> &TypeNames) {
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// Primitive types always print out their description, regardless of whether
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// they have been named or not.
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//
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if (Ty->isInteger() || (Ty->isPrimitiveType() && !isa<OpaqueType>(Ty)))
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return Out << Ty->getDescription();
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// Check to see if the type is named.
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std::map<const Type *, std::string>::iterator I = TypeNames.find(Ty);
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if (I != TypeNames.end()) return Out << I->second;
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// Otherwise we have a type that has not been named but is a derived type.
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// Carefully recurse the type hierarchy to print out any contained symbolic
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// names.
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//
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std::vector<const Type *> TypeStack;
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std::string TypeName;
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calcTypeName(Ty, TypeStack, TypeNames, TypeName);
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TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use
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return (Out << TypeName);
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}
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/// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
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/// type, iff there is an entry in the modules symbol table for the specified
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/// type or one of it's component types. This is slower than a simple x << Type
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///
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std::ostream &llvm::WriteTypeSymbolic(std::ostream &Out, const Type *Ty,
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const Module *M) {
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Out << ' ';
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// If they want us to print out a type, but there is no context, we can't
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// print it symbolically.
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if (!M)
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return Out << Ty->getDescription();
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std::map<const Type *, std::string> TypeNames;
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fillTypeNameTable(M, TypeNames);
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return printTypeInt(Out, Ty, TypeNames);
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}
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// PrintEscapedString - Print each character of the specified string, escaping
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// it if it is not printable or if it is an escape char.
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static void PrintEscapedString(const std::string &Str, std::ostream &Out) {
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for (unsigned i = 0, e = Str.size(); i != e; ++i) {
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unsigned char C = Str[i];
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if (isprint(C) && C != '"' && C != '\\') {
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Out << C;
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} else {
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Out << '\\'
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<< (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
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<< (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
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}
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}
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}
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static const char *getPredicateText(unsigned predicate) {
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const char * pred = "unknown";
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switch (predicate) {
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case FCmpInst::FCMP_FALSE: pred = "false"; break;
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case FCmpInst::FCMP_OEQ: pred = "oeq"; break;
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case FCmpInst::FCMP_OGT: pred = "ogt"; break;
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case FCmpInst::FCMP_OGE: pred = "oge"; break;
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case FCmpInst::FCMP_OLT: pred = "olt"; break;
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case FCmpInst::FCMP_OLE: pred = "ole"; break;
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case FCmpInst::FCMP_ONE: pred = "one"; break;
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case FCmpInst::FCMP_ORD: pred = "ord"; break;
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case FCmpInst::FCMP_UNO: pred = "uno"; break;
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case FCmpInst::FCMP_UEQ: pred = "ueq"; break;
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case FCmpInst::FCMP_UGT: pred = "ugt"; break;
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case FCmpInst::FCMP_UGE: pred = "uge"; break;
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case FCmpInst::FCMP_ULT: pred = "ult"; break;
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case FCmpInst::FCMP_ULE: pred = "ule"; break;
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case FCmpInst::FCMP_UNE: pred = "une"; break;
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case FCmpInst::FCMP_TRUE: pred = "true"; break;
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case ICmpInst::ICMP_EQ: pred = "eq"; break;
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case ICmpInst::ICMP_NE: pred = "ne"; break;
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case ICmpInst::ICMP_SGT: pred = "sgt"; break;
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case ICmpInst::ICMP_SGE: pred = "sge"; break;
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case ICmpInst::ICMP_SLT: pred = "slt"; break;
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case ICmpInst::ICMP_SLE: pred = "sle"; break;
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case ICmpInst::ICMP_UGT: pred = "ugt"; break;
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case ICmpInst::ICMP_UGE: pred = "uge"; break;
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case ICmpInst::ICMP_ULT: pred = "ult"; break;
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case ICmpInst::ICMP_ULE: pred = "ule"; break;
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}
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return pred;
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}
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/// @brief Internal constant writer.
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static void WriteConstantInt(std::ostream &Out, const Constant *CV,
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std::map<const Type *, std::string> &TypeTable,
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SlotMachine *Machine) {
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const int IndentSize = 4;
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static std::string Indent = "\n";
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if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
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if (CI->getType() == Type::Int1Ty)
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Out << (CI->getZExtValue() ? "true" : "false");
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else
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Out << CI->getValue().toStringSigned(10);
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} else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
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if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEdouble ||
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&CFP->getValueAPF().getSemantics() == &APFloat::IEEEsingle) {
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// We would like to output the FP constant value in exponential notation,
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// but we cannot do this if doing so will lose precision. Check here to
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// make sure that we only output it in exponential format if we can parse
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// the value back and get the same value.
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//
|
|
bool isDouble = &CFP->getValueAPF().getSemantics()==&APFloat::IEEEdouble;
|
|
double Val = (isDouble) ? CFP->getValueAPF().convertToDouble() :
|
|
CFP->getValueAPF().convertToFloat();
|
|
std::string StrVal = ftostr(CFP->getValueAPF());
|
|
|
|
// 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 (atof(StrVal.c_str()) == Val) {
|
|
Out << StrVal;
|
|
return;
|
|
}
|
|
}
|
|
// Otherwise we could not reparse it to exactly the same value, so we must
|
|
// output the string in hexadecimal format!
|
|
assert(sizeof(double) == sizeof(uint64_t) &&
|
|
"assuming that double is 64 bits!");
|
|
Out << "0x" << utohexstr(DoubleToBits(Val));
|
|
} else {
|
|
// Some form of long double. These appear as a magic letter identifying
|
|
// the type, then a fixed number of hex digits.
|
|
Out << "0x";
|
|
if (&CFP->getValueAPF().getSemantics() == &APFloat::x87DoubleExtended)
|
|
Out << 'K';
|
|
else if (&CFP->getValueAPF().getSemantics() == &APFloat::IEEEquad)
|
|
Out << 'L';
|
|
else if (&CFP->getValueAPF().getSemantics() == &APFloat::PPCDoubleDouble)
|
|
Out << 'M';
|
|
else
|
|
assert(0 && "Unsupported floating point type");
|
|
// api needed to prevent premature destruction
|
|
APInt api = CFP->getValueAPF().convertToAPInt();
|
|
const uint64_t* p = api.getRawData();
|
|
uint64_t word = *p;
|
|
int shiftcount=60;
|
|
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) {
|
|
word = *(++p);
|
|
shiftcount = 64;
|
|
if (width-j-4 < 64)
|
|
shiftcount = width-j-4;
|
|
}
|
|
}
|
|
}
|
|
} else if (isa<ConstantAggregateZero>(CV)) {
|
|
Out << "zeroinitializer";
|
|
} else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
|
|
// As a special case, print the array as a string if it is an array of
|
|
// ubytes or an array of sbytes with positive values.
|
|
//
|
|
const Type *ETy = CA->getType()->getElementType();
|
|
if (CA->isString()) {
|
|
Out << "c\"";
|
|
PrintEscapedString(CA->getAsString(), Out);
|
|
Out << "\"";
|
|
|
|
} else { // Cannot output in string format...
|
|
Out << '[';
|
|
if (CA->getNumOperands()) {
|
|
Out << ' ';
|
|
printTypeInt(Out, ETy, TypeTable);
|
|
WriteAsOperandInternal(Out, CA->getOperand(0),
|
|
TypeTable, Machine);
|
|
for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
|
|
Out << ", ";
|
|
printTypeInt(Out, ETy, TypeTable);
|
|
WriteAsOperandInternal(Out, CA->getOperand(i), TypeTable, Machine);
|
|
}
|
|
}
|
|
Out << " ]";
|
|
}
|
|
} else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
|
|
if (CS->getType()->isPacked())
|
|
Out << '<';
|
|
Out << '{';
|
|
unsigned N = CS->getNumOperands();
|
|
if (N) {
|
|
if (N > 2) {
|
|
Indent += std::string(IndentSize, ' ');
|
|
Out << Indent;
|
|
} else {
|
|
Out << ' ';
|
|
}
|
|
printTypeInt(Out, CS->getOperand(0)->getType(), TypeTable);
|
|
|
|
WriteAsOperandInternal(Out, CS->getOperand(0), TypeTable, Machine);
|
|
|
|
for (unsigned i = 1; i < N; i++) {
|
|
Out << ", ";
|
|
if (N > 2) Out << Indent;
|
|
printTypeInt(Out, CS->getOperand(i)->getType(), TypeTable);
|
|
|
|
WriteAsOperandInternal(Out, CS->getOperand(i), TypeTable, Machine);
|
|
}
|
|
if (N > 2) Indent.resize(Indent.size() - IndentSize);
|
|
}
|
|
|
|
Out << " }";
|
|
if (CS->getType()->isPacked())
|
|
Out << '>';
|
|
} else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
|
|
const Type *ETy = CP->getType()->getElementType();
|
|
assert(CP->getNumOperands() > 0 &&
|
|
"Number of operands for a PackedConst must be > 0");
|
|
Out << '<';
|
|
Out << ' ';
|
|
printTypeInt(Out, ETy, TypeTable);
|
|
WriteAsOperandInternal(Out, CP->getOperand(0), TypeTable, Machine);
|
|
for (unsigned i = 1, e = CP->getNumOperands(); i != e; ++i) {
|
|
Out << ", ";
|
|
printTypeInt(Out, ETy, TypeTable);
|
|
WriteAsOperandInternal(Out, CP->getOperand(i), TypeTable, Machine);
|
|
}
|
|
Out << " >";
|
|
} else if (isa<ConstantPointerNull>(CV)) {
|
|
Out << "null";
|
|
|
|
} else if (isa<UndefValue>(CV)) {
|
|
Out << "undef";
|
|
|
|
} else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
|
|
Out << CE->getOpcodeName();
|
|
if (CE->isCompare())
|
|
Out << " " << getPredicateText(CE->getPredicate());
|
|
Out << " (";
|
|
|
|
for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
|
|
printTypeInt(Out, (*OI)->getType(), TypeTable);
|
|
WriteAsOperandInternal(Out, *OI, TypeTable, Machine);
|
|
if (OI+1 != CE->op_end())
|
|
Out << ", ";
|
|
}
|
|
|
|
if (CE->isCast()) {
|
|
Out << " to ";
|
|
printTypeInt(Out, CE->getType(), TypeTable);
|
|
}
|
|
|
|
Out << ')';
|
|
|
|
} else {
|
|
Out << "<placeholder or erroneous Constant>";
|
|
}
|
|
}
|
|
|
|
|
|
/// WriteAsOperand - Write the name of the specified value out to the specified
|
|
/// ostream. This can be useful when you just want to print int %reg126, not
|
|
/// the whole instruction that generated it.
|
|
///
|
|
static void WriteAsOperandInternal(std::ostream &Out, const Value *V,
|
|
std::map<const Type*, std::string> &TypeTable,
|
|
SlotMachine *Machine) {
|
|
Out << ' ';
|
|
if (V->hasName())
|
|
Out << getLLVMName(V->getName(),
|
|
isa<GlobalValue>(V) ? GlobalPrefix : LocalPrefix);
|
|
else {
|
|
const Constant *CV = dyn_cast<Constant>(V);
|
|
if (CV && !isa<GlobalValue>(CV)) {
|
|
WriteConstantInt(Out, CV, TypeTable, Machine);
|
|
} else if (const InlineAsm *IA = dyn_cast<InlineAsm>(V)) {
|
|
Out << "asm ";
|
|
if (IA->hasSideEffects())
|
|
Out << "sideeffect ";
|
|
Out << '"';
|
|
PrintEscapedString(IA->getAsmString(), Out);
|
|
Out << "\", \"";
|
|
PrintEscapedString(IA->getConstraintString(), Out);
|
|
Out << '"';
|
|
} else {
|
|
char Prefix = '%';
|
|
int Slot;
|
|
if (Machine) {
|
|
if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
|
|
Slot = Machine->getGlobalSlot(GV);
|
|
Prefix = '@';
|
|
} else {
|
|
Slot = Machine->getLocalSlot(V);
|
|
}
|
|
} else {
|
|
Machine = createSlotMachine(V);
|
|
if (Machine) {
|
|
if (const GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
|
|
Slot = Machine->getGlobalSlot(GV);
|
|
Prefix = '@';
|
|
} else {
|
|
Slot = Machine->getLocalSlot(V);
|
|
}
|
|
} else {
|
|
Slot = -1;
|
|
}
|
|
delete Machine;
|
|
}
|
|
if (Slot != -1)
|
|
Out << Prefix << Slot;
|
|
else
|
|
Out << "<badref>";
|
|
}
|
|
}
|
|
}
|
|
|
|
/// WriteAsOperand - Write the name of the specified value out to the specified
|
|
/// ostream. This can be useful when you just want to print int %reg126, not
|
|
/// the whole instruction that generated it.
|
|
///
|
|
std::ostream &llvm::WriteAsOperand(std::ostream &Out, const Value *V,
|
|
bool PrintType, const Module *Context) {
|
|
std::map<const Type *, std::string> TypeNames;
|
|
if (Context == 0) Context = getModuleFromVal(V);
|
|
|
|
if (Context)
|
|
fillTypeNameTable(Context, TypeNames);
|
|
|
|
if (PrintType)
|
|
printTypeInt(Out, V->getType(), TypeNames);
|
|
|
|
WriteAsOperandInternal(Out, V, TypeNames, 0);
|
|
return Out;
|
|
}
|
|
|
|
|
|
namespace llvm {
|
|
|
|
class AssemblyWriter {
|
|
std::ostream &Out;
|
|
SlotMachine &Machine;
|
|
const Module *TheModule;
|
|
std::map<const Type *, std::string> TypeNames;
|
|
AssemblyAnnotationWriter *AnnotationWriter;
|
|
public:
|
|
inline AssemblyWriter(std::ostream &o, SlotMachine &Mac, const Module *M,
|
|
AssemblyAnnotationWriter *AAW)
|
|
: Out(o), Machine(Mac), TheModule(M), AnnotationWriter(AAW) {
|
|
|
|
// If the module has a symbol table, take all global types and stuff their
|
|
// names into the TypeNames map.
|
|
//
|
|
fillTypeNameTable(M, TypeNames);
|
|
}
|
|
|
|
inline void write(const Module *M) { printModule(M); }
|
|
inline void write(const GlobalVariable *G) { printGlobal(G); }
|
|
inline void write(const GlobalAlias *G) { printAlias(G); }
|
|
inline void write(const Function *F) { printFunction(F); }
|
|
inline void write(const BasicBlock *BB) { printBasicBlock(BB); }
|
|
inline void write(const Instruction *I) { printInstruction(*I); }
|
|
inline void write(const Type *Ty) { printType(Ty); }
|
|
|
|
void writeOperand(const Value *Op, bool PrintType);
|
|
void writeParamOperand(const Value *Operand, uint16_t Attrs);
|
|
|
|
const Module* getModule() { return TheModule; }
|
|
|
|
private:
|
|
void printModule(const Module *M);
|
|
void printTypeSymbolTable(const TypeSymbolTable &ST);
|
|
void printGlobal(const GlobalVariable *GV);
|
|
void printAlias(const GlobalAlias *GV);
|
|
void printFunction(const Function *F);
|
|
void printArgument(const Argument *FA, uint16_t ParamAttrs);
|
|
void printBasicBlock(const BasicBlock *BB);
|
|
void printInstruction(const Instruction &I);
|
|
|
|
// printType - Go to extreme measures to attempt to print out a short,
|
|
// symbolic version of a type name.
|
|
//
|
|
std::ostream &printType(const Type *Ty) {
|
|
return printTypeInt(Out, Ty, TypeNames);
|
|
}
|
|
|
|
// printTypeAtLeastOneLevel - Print out one level of the possibly complex type
|
|
// without considering any symbolic types that we may have equal to it.
|
|
//
|
|
std::ostream &printTypeAtLeastOneLevel(const Type *Ty);
|
|
|
|
// printInfoComment - Print a little comment after the instruction indicating
|
|
// which slot it occupies.
|
|
void printInfoComment(const Value &V);
|
|
};
|
|
} // end of llvm namespace
|
|
|
|
/// printTypeAtLeastOneLevel - Print out one level of the possibly complex type
|
|
/// without considering any symbolic types that we may have equal to it.
|
|
///
|
|
std::ostream &AssemblyWriter::printTypeAtLeastOneLevel(const Type *Ty) {
|
|
if (const IntegerType *ITy = dyn_cast<IntegerType>(Ty))
|
|
Out << "i" << utostr(ITy->getBitWidth());
|
|
else if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
|
|
printType(FTy->getReturnType());
|
|
Out << " (";
|
|
for (FunctionType::param_iterator I = FTy->param_begin(),
|
|
E = FTy->param_end(); I != E; ++I) {
|
|
if (I != FTy->param_begin())
|
|
Out << ", ";
|
|
printType(*I);
|
|
}
|
|
if (FTy->isVarArg()) {
|
|
if (FTy->getNumParams()) Out << ", ";
|
|
Out << "...";
|
|
}
|
|
Out << ')';
|
|
} else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
|
|
if (STy->isPacked())
|
|
Out << '<';
|
|
Out << "{ ";
|
|
for (StructType::element_iterator I = STy->element_begin(),
|
|
E = STy->element_end(); I != E; ++I) {
|
|
if (I != STy->element_begin())
|
|
Out << ", ";
|
|
printType(*I);
|
|
}
|
|
Out << " }";
|
|
if (STy->isPacked())
|
|
Out << '>';
|
|
} else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
|
|
printType(PTy->getElementType());
|
|
if (unsigned AddressSpace = PTy->getAddressSpace())
|
|
Out << " addrspace(" << AddressSpace << ")";
|
|
Out << '*';
|
|
} else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
|
|
Out << '[' << ATy->getNumElements() << " x ";
|
|
printType(ATy->getElementType()) << ']';
|
|
} else if (const VectorType *PTy = dyn_cast<VectorType>(Ty)) {
|
|
Out << '<' << PTy->getNumElements() << " x ";
|
|
printType(PTy->getElementType()) << '>';
|
|
}
|
|
else if (isa<OpaqueType>(Ty)) {
|
|
Out << "opaque";
|
|
} else {
|
|
if (!Ty->isPrimitiveType())
|
|
Out << "<unknown derived type>";
|
|
printType(Ty);
|
|
}
|
|
return Out;
|
|
}
|
|
|
|
|
|
void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType) {
|
|
if (Operand == 0) {
|
|
Out << "<null operand!>";
|
|
} else {
|
|
if (PrintType) { Out << ' '; printType(Operand->getType()); }
|
|
WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
|
|
}
|
|
}
|
|
|
|
void AssemblyWriter::writeParamOperand(const Value *Operand, uint16_t Attrs) {
|
|
if (Operand == 0) {
|
|
Out << "<null operand!>";
|
|
} else {
|
|
Out << ' ';
|
|
// Print the type
|
|
printType(Operand->getType());
|
|
// Print parameter attributes list
|
|
if (Attrs != ParamAttr::None)
|
|
Out << ' ' << ParamAttrsList::getParamAttrsText(Attrs);
|
|
// Print the operand
|
|
WriteAsOperandInternal(Out, Operand, TypeNames, &Machine);
|
|
}
|
|
}
|
|
|
|
void AssemblyWriter::printModule(const Module *M) {
|
|
if (!M->getModuleIdentifier().empty() &&
|
|
// Don't print the ID if it will start a new line (which would
|
|
// require a comment char before it).
|
|
M->getModuleIdentifier().find('\n') == std::string::npos)
|
|
Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
|
|
|
|
if (!M->getDataLayout().empty())
|
|
Out << "target datalayout = \"" << M->getDataLayout() << "\"\n";
|
|
if (!M->getTargetTriple().empty())
|
|
Out << "target triple = \"" << M->getTargetTriple() << "\"\n";
|
|
|
|
if (!M->getModuleInlineAsm().empty()) {
|
|
// Split the string into lines, to make it easier to read the .ll file.
|
|
std::string Asm = M->getModuleInlineAsm();
|
|
size_t CurPos = 0;
|
|
size_t NewLine = Asm.find_first_of('\n', CurPos);
|
|
while (NewLine != std::string::npos) {
|
|
// We found a newline, print the portion of the asm string from the
|
|
// last newline up to this newline.
|
|
Out << "module asm \"";
|
|
PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.begin()+NewLine),
|
|
Out);
|
|
Out << "\"\n";
|
|
CurPos = NewLine+1;
|
|
NewLine = Asm.find_first_of('\n', CurPos);
|
|
}
|
|
Out << "module asm \"";
|
|
PrintEscapedString(std::string(Asm.begin()+CurPos, Asm.end()), Out);
|
|
Out << "\"\n";
|
|
}
|
|
|
|
// Loop over the dependent libraries and emit them.
|
|
Module::lib_iterator LI = M->lib_begin();
|
|
Module::lib_iterator LE = M->lib_end();
|
|
if (LI != LE) {
|
|
Out << "deplibs = [ ";
|
|
while (LI != LE) {
|
|
Out << '"' << *LI << '"';
|
|
++LI;
|
|
if (LI != LE)
|
|
Out << ", ";
|
|
}
|
|
Out << " ]\n";
|
|
}
|
|
|
|
// Loop over the symbol table, emitting all named constants.
|
|
printTypeSymbolTable(M->getTypeSymbolTable());
|
|
|
|
for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
|
|
I != E; ++I)
|
|
printGlobal(I);
|
|
|
|
// Output all aliases.
|
|
if (!M->alias_empty()) Out << "\n";
|
|
for (Module::const_alias_iterator I = M->alias_begin(), E = M->alias_end();
|
|
I != E; ++I)
|
|
printAlias(I);
|
|
|
|
// Output all of the functions.
|
|
for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
|
|
printFunction(I);
|
|
}
|
|
|
|
void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
|
|
if (GV->hasName()) Out << getLLVMName(GV->getName(), GlobalPrefix) << " = ";
|
|
|
|
if (!GV->hasInitializer())
|
|
switch (GV->getLinkage()) {
|
|
case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
|
|
case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
|
|
default: Out << "external "; break;
|
|
} else {
|
|
switch (GV->getLinkage()) {
|
|
case GlobalValue::InternalLinkage: Out << "internal "; break;
|
|
case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
|
|
case GlobalValue::WeakLinkage: Out << "weak "; break;
|
|
case GlobalValue::AppendingLinkage: Out << "appending "; break;
|
|
case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
|
|
case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
|
|
case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
|
|
case GlobalValue::ExternalLinkage: break;
|
|
case GlobalValue::GhostLinkage:
|
|
cerr << "GhostLinkage not allowed in AsmWriter!\n";
|
|
abort();
|
|
}
|
|
switch (GV->getVisibility()) {
|
|
default: assert(0 && "Invalid visibility style!");
|
|
case GlobalValue::DefaultVisibility: break;
|
|
case GlobalValue::HiddenVisibility: Out << "hidden "; break;
|
|
case GlobalValue::ProtectedVisibility: Out << "protected "; break;
|
|
}
|
|
}
|
|
|
|
if (GV->isThreadLocal()) Out << "thread_local ";
|
|
Out << (GV->isConstant() ? "constant " : "global ");
|
|
printType(GV->getType()->getElementType());
|
|
|
|
if (GV->hasInitializer()) {
|
|
Constant* C = cast<Constant>(GV->getInitializer());
|
|
assert(C && "GlobalVar initializer isn't constant?");
|
|
writeOperand(GV->getInitializer(), false);
|
|
}
|
|
|
|
if (unsigned AddressSpace = GV->getType()->getAddressSpace())
|
|
Out << " addrspace(" << AddressSpace << ") ";
|
|
|
|
if (GV->hasSection())
|
|
Out << ", section \"" << GV->getSection() << '"';
|
|
if (GV->getAlignment())
|
|
Out << ", align " << GV->getAlignment();
|
|
|
|
printInfoComment(*GV);
|
|
Out << "\n";
|
|
}
|
|
|
|
void AssemblyWriter::printAlias(const GlobalAlias *GA) {
|
|
Out << getLLVMName(GA->getName(), GlobalPrefix) << " = ";
|
|
switch (GA->getVisibility()) {
|
|
default: assert(0 && "Invalid visibility style!");
|
|
case GlobalValue::DefaultVisibility: break;
|
|
case GlobalValue::HiddenVisibility: Out << "hidden "; break;
|
|
case GlobalValue::ProtectedVisibility: Out << "protected "; break;
|
|
}
|
|
|
|
Out << "alias ";
|
|
|
|
switch (GA->getLinkage()) {
|
|
case GlobalValue::WeakLinkage: Out << "weak "; break;
|
|
case GlobalValue::InternalLinkage: Out << "internal "; break;
|
|
case GlobalValue::ExternalLinkage: break;
|
|
default:
|
|
assert(0 && "Invalid alias linkage");
|
|
}
|
|
|
|
const Constant *Aliasee = GA->getAliasee();
|
|
|
|
if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(Aliasee)) {
|
|
printType(GV->getType());
|
|
Out << " " << getLLVMName(GV->getName(), GlobalPrefix);
|
|
} else if (const Function *F = dyn_cast<Function>(Aliasee)) {
|
|
printType(F->getFunctionType());
|
|
Out << "* ";
|
|
|
|
if (!F->getName().empty())
|
|
Out << getLLVMName(F->getName(), GlobalPrefix);
|
|
else
|
|
Out << "@\"\"";
|
|
} else {
|
|
const ConstantExpr *CE = 0;
|
|
if ((CE = dyn_cast<ConstantExpr>(Aliasee)) &&
|
|
(CE->getOpcode() == Instruction::BitCast)) {
|
|
writeOperand(CE, false);
|
|
} else
|
|
assert(0 && "Unsupported aliasee");
|
|
}
|
|
|
|
printInfoComment(*GA);
|
|
Out << "\n";
|
|
}
|
|
|
|
void AssemblyWriter::printTypeSymbolTable(const TypeSymbolTable &ST) {
|
|
// Print the types.
|
|
for (TypeSymbolTable::const_iterator TI = ST.begin(), TE = ST.end();
|
|
TI != TE; ++TI) {
|
|
Out << "\t" << getLLVMName(TI->first, LocalPrefix) << " = type ";
|
|
|
|
// Make sure we print out at least one level of the type structure, so
|
|
// that we do not get %FILE = type %FILE
|
|
//
|
|
printTypeAtLeastOneLevel(TI->second) << "\n";
|
|
}
|
|
}
|
|
|
|
/// printFunction - Print all aspects of a function.
|
|
///
|
|
void AssemblyWriter::printFunction(const Function *F) {
|
|
// Print out the return type and name...
|
|
Out << "\n";
|
|
|
|
if (AnnotationWriter) AnnotationWriter->emitFunctionAnnot(F, Out);
|
|
|
|
if (F->isDeclaration())
|
|
Out << "declare ";
|
|
else
|
|
Out << "define ";
|
|
|
|
switch (F->getLinkage()) {
|
|
case GlobalValue::InternalLinkage: Out << "internal "; break;
|
|
case GlobalValue::LinkOnceLinkage: Out << "linkonce "; break;
|
|
case GlobalValue::WeakLinkage: Out << "weak "; break;
|
|
case GlobalValue::AppendingLinkage: Out << "appending "; break;
|
|
case GlobalValue::DLLImportLinkage: Out << "dllimport "; break;
|
|
case GlobalValue::DLLExportLinkage: Out << "dllexport "; break;
|
|
case GlobalValue::ExternalWeakLinkage: Out << "extern_weak "; break;
|
|
case GlobalValue::ExternalLinkage: break;
|
|
case GlobalValue::GhostLinkage:
|
|
cerr << "GhostLinkage not allowed in AsmWriter!\n";
|
|
abort();
|
|
}
|
|
switch (F->getVisibility()) {
|
|
default: assert(0 && "Invalid visibility style!");
|
|
case GlobalValue::DefaultVisibility: break;
|
|
case GlobalValue::HiddenVisibility: Out << "hidden "; break;
|
|
case GlobalValue::ProtectedVisibility: Out << "protected "; break;
|
|
}
|
|
|
|
// Print the calling convention.
|
|
switch (F->getCallingConv()) {
|
|
case CallingConv::C: break; // default
|
|
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;
|
|
default: Out << "cc" << F->getCallingConv() << " "; break;
|
|
}
|
|
|
|
const FunctionType *FT = F->getFunctionType();
|
|
const ParamAttrsList *Attrs = F->getParamAttrs();
|
|
printType(F->getReturnType()) << ' ';
|
|
if (!F->getName().empty())
|
|
Out << getLLVMName(F->getName(), GlobalPrefix);
|
|
else
|
|
Out << "@\"\"";
|
|
Out << '(';
|
|
Machine.incorporateFunction(F);
|
|
|
|
// Loop over the arguments, printing them...
|
|
|
|
unsigned Idx = 1;
|
|
if (!F->isDeclaration()) {
|
|
// If this isn't a declaration, print the argument names as well.
|
|
for (Function::const_arg_iterator I = F->arg_begin(), E = F->arg_end();
|
|
I != E; ++I) {
|
|
// Insert commas as we go... the first arg doesn't get a comma
|
|
if (I != F->arg_begin()) Out << ", ";
|
|
printArgument(I, (Attrs ? Attrs->getParamAttrs(Idx)
|
|
: uint16_t(ParamAttr::None)));
|
|
Idx++;
|
|
}
|
|
} else {
|
|
// Otherwise, print the types from the function type.
|
|
for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) {
|
|
// Insert commas as we go... the first arg doesn't get a comma
|
|
if (i) Out << ", ";
|
|
|
|
// Output type...
|
|
printType(FT->getParamType(i));
|
|
|
|
unsigned ArgAttrs = ParamAttr::None;
|
|
if (Attrs) ArgAttrs = Attrs->getParamAttrs(i+1);
|
|
if (ArgAttrs != ParamAttr::None)
|
|
Out << ' ' << ParamAttrsList::getParamAttrsText(ArgAttrs);
|
|
}
|
|
}
|
|
|
|
// Finish printing arguments...
|
|
if (FT->isVarArg()) {
|
|
if (FT->getNumParams()) Out << ", ";
|
|
Out << "..."; // Output varargs portion of signature!
|
|
}
|
|
Out << ')';
|
|
if (Attrs && Attrs->getParamAttrs(0) != ParamAttr::None)
|
|
Out << ' ' << Attrs->getParamAttrsTextByIndex(0);
|
|
if (F->hasSection())
|
|
Out << " section \"" << F->getSection() << '"';
|
|
if (F->getAlignment())
|
|
Out << " align " << F->getAlignment();
|
|
if (F->hasCollector())
|
|
Out << " gc \"" << F->getCollector() << '"';
|
|
|
|
if (F->isDeclaration()) {
|
|
Out << "\n";
|
|
} else {
|
|
Out << " {";
|
|
|
|
// Output all of its basic blocks... for the function
|
|
for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
|
|
printBasicBlock(I);
|
|
|
|
Out << "}\n";
|
|
}
|
|
|
|
Machine.purgeFunction();
|
|
}
|
|
|
|
/// printArgument - This member is called for every argument that is passed into
|
|
/// the function. Simply print it out
|
|
///
|
|
void AssemblyWriter::printArgument(const Argument *Arg, uint16_t Attrs) {
|
|
// Output type...
|
|
printType(Arg->getType());
|
|
|
|
// Output parameter attributes list
|
|
if (Attrs != ParamAttr::None)
|
|
Out << ' ' << ParamAttrsList::getParamAttrsText(Attrs);
|
|
|
|
// Output name, if available...
|
|
if (Arg->hasName())
|
|
Out << ' ' << getLLVMName(Arg->getName(), LocalPrefix);
|
|
}
|
|
|
|
/// printBasicBlock - This member is called for each basic block in a method.
|
|
///
|
|
void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
|
|
if (BB->hasName()) { // Print out the label if it exists...
|
|
Out << "\n" << getLLVMName(BB->getName(), LabelPrefix) << ':';
|
|
} else if (!BB->use_empty()) { // Don't print block # of no uses...
|
|
Out << "\n; <label>:";
|
|
int Slot = Machine.getLocalSlot(BB);
|
|
if (Slot != -1)
|
|
Out << Slot;
|
|
else
|
|
Out << "<badref>";
|
|
}
|
|
|
|
if (BB->getParent() == 0)
|
|
Out << "\t\t; Error: Block without parent!";
|
|
else {
|
|
if (BB != &BB->getParent()->getEntryBlock()) { // Not the entry block?
|
|
// Output predecessors for the block...
|
|
Out << "\t\t;";
|
|
pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
|
|
|
|
if (PI == PE) {
|
|
Out << " No predecessors!";
|
|
} else {
|
|
Out << " preds =";
|
|
writeOperand(*PI, false);
|
|
for (++PI; PI != PE; ++PI) {
|
|
Out << ',';
|
|
writeOperand(*PI, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Out << "\n";
|
|
|
|
if (AnnotationWriter) AnnotationWriter->emitBasicBlockStartAnnot(BB, Out);
|
|
|
|
// Output all of the instructions in the basic block...
|
|
for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
|
|
printInstruction(*I);
|
|
|
|
if (AnnotationWriter) AnnotationWriter->emitBasicBlockEndAnnot(BB, Out);
|
|
}
|
|
|
|
|
|
/// printInfoComment - Print a little comment after the instruction indicating
|
|
/// which slot it occupies.
|
|
///
|
|
void AssemblyWriter::printInfoComment(const Value &V) {
|
|
if (V.getType() != Type::VoidTy) {
|
|
Out << "\t\t; <";
|
|
printType(V.getType()) << '>';
|
|
|
|
if (!V.hasName()) {
|
|
int SlotNum;
|
|
if (const GlobalValue *GV = dyn_cast<GlobalValue>(&V))
|
|
SlotNum = Machine.getGlobalSlot(GV);
|
|
else
|
|
SlotNum = Machine.getLocalSlot(&V);
|
|
if (SlotNum == -1)
|
|
Out << ":<badref>";
|
|
else
|
|
Out << ':' << SlotNum; // Print out the def slot taken.
|
|
}
|
|
Out << " [#uses=" << V.getNumUses() << ']'; // Output # uses
|
|
}
|
|
}
|
|
|
|
// This member is called for each Instruction in a function..
|
|
void AssemblyWriter::printInstruction(const Instruction &I) {
|
|
if (AnnotationWriter) AnnotationWriter->emitInstructionAnnot(&I, Out);
|
|
|
|
Out << "\t";
|
|
|
|
// Print out name if it exists...
|
|
if (I.hasName())
|
|
Out << getLLVMName(I.getName(), LocalPrefix) << " = ";
|
|
|
|
// If this is a volatile load or store, print out the volatile marker.
|
|
if ((isa<LoadInst>(I) && cast<LoadInst>(I).isVolatile()) ||
|
|
(isa<StoreInst>(I) && cast<StoreInst>(I).isVolatile())) {
|
|
Out << "volatile ";
|
|
} else if (isa<CallInst>(I) && cast<CallInst>(I).isTailCall()) {
|
|
// If this is a call, check if it's a tail call.
|
|
Out << "tail ";
|
|
}
|
|
|
|
// Print out the opcode...
|
|
Out << I.getOpcodeName();
|
|
|
|
// Print out the compare instruction predicates
|
|
if (const FCmpInst *FCI = dyn_cast<FCmpInst>(&I)) {
|
|
Out << " " << getPredicateText(FCI->getPredicate());
|
|
} else if (const ICmpInst *ICI = dyn_cast<ICmpInst>(&I)) {
|
|
Out << " " << getPredicateText(ICI->getPredicate());
|
|
}
|
|
|
|
// Print out the type of the operands...
|
|
const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
|
|
|
|
// Special case conditional branches to swizzle the condition out to the front
|
|
if (isa<BranchInst>(I) && I.getNumOperands() > 1) {
|
|
writeOperand(I.getOperand(2), true);
|
|
Out << ',';
|
|
writeOperand(Operand, true);
|
|
Out << ',';
|
|
writeOperand(I.getOperand(1), true);
|
|
|
|
} else if (isa<SwitchInst>(I)) {
|
|
// Special case switch statement to get formatting nice and correct...
|
|
writeOperand(Operand , true); Out << ',';
|
|
writeOperand(I.getOperand(1), true); Out << " [";
|
|
|
|
for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; op += 2) {
|
|
Out << "\n\t\t";
|
|
writeOperand(I.getOperand(op ), true); Out << ',';
|
|
writeOperand(I.getOperand(op+1), true);
|
|
}
|
|
Out << "\n\t]";
|
|
} else if (isa<PHINode>(I)) {
|
|
Out << ' ';
|
|
printType(I.getType());
|
|
Out << ' ';
|
|
|
|
for (unsigned op = 0, Eop = I.getNumOperands(); op < Eop; op += 2) {
|
|
if (op) Out << ", ";
|
|
Out << '[';
|
|
writeOperand(I.getOperand(op ), false); Out << ',';
|
|
writeOperand(I.getOperand(op+1), false); Out << " ]";
|
|
}
|
|
} else if (isa<ReturnInst>(I) && !Operand) {
|
|
Out << " void";
|
|
} else if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
|
|
// Print the calling convention being used.
|
|
switch (CI->getCallingConv()) {
|
|
case CallingConv::C: break; // default
|
|
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;
|
|
default: Out << " cc" << CI->getCallingConv(); break;
|
|
}
|
|
|
|
const PointerType *PTy = cast<PointerType>(Operand->getType());
|
|
const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
|
|
const Type *RetTy = FTy->getReturnType();
|
|
const ParamAttrsList *PAL = CI->getParamAttrs();
|
|
|
|
// If possible, print out the short form of the call instruction. We can
|
|
// only do this if the first argument is a pointer to a nonvararg function,
|
|
// and if the return type is not a pointer to a function.
|
|
//
|
|
if (!FTy->isVarArg() &&
|
|
(!isa<PointerType>(RetTy) ||
|
|
!isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
|
|
Out << ' '; printType(RetTy);
|
|
writeOperand(Operand, false);
|
|
} else {
|
|
writeOperand(Operand, true);
|
|
}
|
|
Out << '(';
|
|
for (unsigned op = 1, Eop = I.getNumOperands(); op < Eop; ++op) {
|
|
if (op > 1)
|
|
Out << ',';
|
|
writeParamOperand(I.getOperand(op), PAL ? PAL->getParamAttrs(op) : 0);
|
|
}
|
|
Out << " )";
|
|
if (PAL && PAL->getParamAttrs(0) != ParamAttr::None)
|
|
Out << ' ' << PAL->getParamAttrsTextByIndex(0);
|
|
} else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
|
|
const PointerType *PTy = cast<PointerType>(Operand->getType());
|
|
const FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
|
|
const Type *RetTy = FTy->getReturnType();
|
|
const ParamAttrsList *PAL = II->getParamAttrs();
|
|
|
|
// Print the calling convention being used.
|
|
switch (II->getCallingConv()) {
|
|
case CallingConv::C: break; // default
|
|
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;
|
|
default: Out << " cc" << II->getCallingConv(); break;
|
|
}
|
|
|
|
// If possible, print out the short form of the invoke instruction. We can
|
|
// only do this if the first argument is a pointer to a nonvararg function,
|
|
// and if the return type is not a pointer to a function.
|
|
//
|
|
if (!FTy->isVarArg() &&
|
|
(!isa<PointerType>(RetTy) ||
|
|
!isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
|
|
Out << ' '; printType(RetTy);
|
|
writeOperand(Operand, false);
|
|
} else {
|
|
writeOperand(Operand, true);
|
|
}
|
|
|
|
Out << '(';
|
|
for (unsigned op = 3, Eop = I.getNumOperands(); op < Eop; ++op) {
|
|
if (op > 3)
|
|
Out << ',';
|
|
writeParamOperand(I.getOperand(op), PAL ? PAL->getParamAttrs(op-2) : 0);
|
|
}
|
|
|
|
Out << " )";
|
|
if (PAL && PAL->getParamAttrs(0) != ParamAttr::None)
|
|
Out << " " << PAL->getParamAttrsTextByIndex(0);
|
|
Out << "\n\t\t\tto";
|
|
writeOperand(II->getNormalDest(), true);
|
|
Out << " unwind";
|
|
writeOperand(II->getUnwindDest(), true);
|
|
|
|
} else if (const AllocationInst *AI = dyn_cast<AllocationInst>(&I)) {
|
|
Out << ' ';
|
|
printType(AI->getType()->getElementType());
|
|
if (AI->isArrayAllocation()) {
|
|
Out << ',';
|
|
writeOperand(AI->getArraySize(), true);
|
|
}
|
|
if (AI->getAlignment()) {
|
|
Out << ", align " << AI->getAlignment();
|
|
}
|
|
} else if (isa<CastInst>(I)) {
|
|
if (Operand) writeOperand(Operand, true); // Work with broken code
|
|
Out << " to ";
|
|
printType(I.getType());
|
|
} else if (isa<VAArgInst>(I)) {
|
|
if (Operand) writeOperand(Operand, true); // Work with broken code
|
|
Out << ", ";
|
|
printType(I.getType());
|
|
} else if (Operand) { // Print the normal way...
|
|
|
|
// PrintAllTypes - Instructions who have operands of all the same type
|
|
// omit the type from all but the first operand. If the instruction has
|
|
// different type operands (for example br), then they are all printed.
|
|
bool PrintAllTypes = false;
|
|
const Type *TheType = Operand->getType();
|
|
|
|
// Select, Store and ShuffleVector always print all types.
|
|
if (isa<SelectInst>(I) || isa<StoreInst>(I) || isa<ShuffleVectorInst>(I)) {
|
|
PrintAllTypes = true;
|
|
} else {
|
|
for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
|
|
Operand = I.getOperand(i);
|
|
if (Operand->getType() != TheType) {
|
|
PrintAllTypes = true; // We have differing types! Print them all!
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!PrintAllTypes) {
|
|
Out << ' ';
|
|
printType(TheType);
|
|
}
|
|
|
|
for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
|
|
if (i) Out << ',';
|
|
writeOperand(I.getOperand(i), PrintAllTypes);
|
|
}
|
|
}
|
|
|
|
// Print post operand alignment for load/store
|
|
if (isa<LoadInst>(I) && cast<LoadInst>(I).getAlignment()) {
|
|
Out << ", align " << cast<LoadInst>(I).getAlignment();
|
|
} else if (isa<StoreInst>(I) && cast<StoreInst>(I).getAlignment()) {
|
|
Out << ", align " << cast<StoreInst>(I).getAlignment();
|
|
}
|
|
|
|
printInfoComment(I);
|
|
Out << "\n";
|
|
}
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// External Interface declarations
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void Module::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
|
|
SlotMachine SlotTable(this);
|
|
AssemblyWriter W(o, SlotTable, this, AAW);
|
|
W.write(this);
|
|
}
|
|
|
|
void GlobalVariable::print(std::ostream &o) const {
|
|
SlotMachine SlotTable(getParent());
|
|
AssemblyWriter W(o, SlotTable, getParent(), 0);
|
|
W.write(this);
|
|
}
|
|
|
|
void GlobalAlias::print(std::ostream &o) const {
|
|
SlotMachine SlotTable(getParent());
|
|
AssemblyWriter W(o, SlotTable, getParent(), 0);
|
|
W.write(this);
|
|
}
|
|
|
|
void Function::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
|
|
SlotMachine SlotTable(getParent());
|
|
AssemblyWriter W(o, SlotTable, getParent(), AAW);
|
|
|
|
W.write(this);
|
|
}
|
|
|
|
void InlineAsm::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
|
|
WriteAsOperand(o, this, true, 0);
|
|
}
|
|
|
|
void BasicBlock::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
|
|
SlotMachine SlotTable(getParent());
|
|
AssemblyWriter W(o, SlotTable,
|
|
getParent() ? getParent()->getParent() : 0, AAW);
|
|
W.write(this);
|
|
}
|
|
|
|
void Instruction::print(std::ostream &o, AssemblyAnnotationWriter *AAW) const {
|
|
const Function *F = getParent() ? getParent()->getParent() : 0;
|
|
SlotMachine SlotTable(F);
|
|
AssemblyWriter W(o, SlotTable, F ? F->getParent() : 0, AAW);
|
|
|
|
W.write(this);
|
|
}
|
|
|
|
void Constant::print(std::ostream &o) const {
|
|
if (this == 0) { o << "<null> constant value\n"; return; }
|
|
|
|
o << ' ' << getType()->getDescription() << ' ';
|
|
|
|
std::map<const Type *, std::string> TypeTable;
|
|
WriteConstantInt(o, this, TypeTable, 0);
|
|
}
|
|
|
|
void Type::print(std::ostream &o) const {
|
|
if (this == 0)
|
|
o << "<null Type>";
|
|
else
|
|
o << getDescription();
|
|
}
|
|
|
|
void Argument::print(std::ostream &o) const {
|
|
WriteAsOperand(o, this, true, getParent() ? getParent()->getParent() : 0);
|
|
}
|
|
|
|
// Value::dump - allow easy printing of Values from the debugger.
|
|
// Located here because so much of the needed functionality is here.
|
|
void Value::dump() const { print(*cerr.stream()); cerr << '\n'; }
|
|
|
|
// Type::dump - allow easy printing of Values from the debugger.
|
|
// Located here because so much of the needed functionality is here.
|
|
void Type::dump() const { print(*cerr.stream()); cerr << '\n'; }
|
|
|
|
void
|
|
ParamAttrsList::dump() const {
|
|
cerr << "PAL[ ";
|
|
for (unsigned i = 0; i < attrs.size(); ++i) {
|
|
uint16_t index = getParamIndex(i);
|
|
uint16_t attrs = getParamAttrs(index);
|
|
cerr << "{" << index << "," << attrs << "} ";
|
|
}
|
|
cerr << "]\n";
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SlotMachine Implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#if 0
|
|
#define SC_DEBUG(X) cerr << X
|
|
#else
|
|
#define SC_DEBUG(X)
|
|
#endif
|
|
|
|
// Module level constructor. Causes the contents of the Module (sans functions)
|
|
// to be added to the slot table.
|
|
SlotMachine::SlotMachine(const Module *M)
|
|
: TheModule(M) ///< Saved for lazy initialization.
|
|
, TheFunction(0)
|
|
, FunctionProcessed(false)
|
|
, mMap(), mNext(0), fMap(), fNext(0)
|
|
{
|
|
}
|
|
|
|
// Function level constructor. Causes the contents of the Module and the one
|
|
// function provided to be added to the slot table.
|
|
SlotMachine::SlotMachine(const Function *F)
|
|
: TheModule(F ? F->getParent() : 0) ///< Saved for lazy initialization
|
|
, TheFunction(F) ///< Saved for lazy initialization
|
|
, FunctionProcessed(false)
|
|
, mMap(), mNext(0), fMap(), fNext(0)
|
|
{
|
|
}
|
|
|
|
inline void SlotMachine::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 SlotMachine::processModule() {
|
|
SC_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 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);
|
|
|
|
SC_DEBUG("end processModule!\n");
|
|
}
|
|
|
|
|
|
// Process the arguments, basic blocks, and instructions of a function.
|
|
void SlotMachine::processFunction() {
|
|
SC_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);
|
|
|
|
SC_DEBUG("Inserting Instructions:\n");
|
|
|
|
// 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() != Type::VoidTy && !I->hasName())
|
|
CreateFunctionSlot(I);
|
|
}
|
|
|
|
FunctionProcessed = true;
|
|
|
|
SC_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 SlotMachine::purgeFunction() {
|
|
SC_DEBUG("begin purgeFunction!\n");
|
|
fMap.clear(); // Simply discard the function level map
|
|
TheFunction = 0;
|
|
FunctionProcessed = false;
|
|
SC_DEBUG("end purgeFunction!\n");
|
|
}
|
|
|
|
/// getGlobalSlot - Get the slot number of a global value.
|
|
int SlotMachine::getGlobalSlot(const GlobalValue *V) {
|
|
// Check for uninitialized state and do lazy initialization.
|
|
initialize();
|
|
|
|
// Find the type plane in the module map
|
|
ValueMap::const_iterator MI = mMap.find(V);
|
|
if (MI == mMap.end()) return -1;
|
|
|
|
return MI->second;
|
|
}
|
|
|
|
|
|
/// getLocalSlot - Get the slot number for a value that is local to a function.
|
|
int SlotMachine::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::const_iterator FI = fMap.find(V);
|
|
if (FI == fMap.end()) return -1;
|
|
|
|
return FI->second;
|
|
}
|
|
|
|
|
|
/// CreateModuleSlot - Insert the specified GlobalValue* into the slot table.
|
|
void SlotMachine::CreateModuleSlot(const GlobalValue *V) {
|
|
assert(V && "Can't insert a null Value into SlotMachine!");
|
|
assert(V->getType() != Type::VoidTy && "Doesn't need a slot!");
|
|
assert(!V->hasName() && "Doesn't need a slot!");
|
|
|
|
unsigned DestSlot = mNext++;
|
|
mMap[V] = DestSlot;
|
|
|
|
SC_DEBUG(" Inserting value [" << V->getType() << "] = " << V << " slot=" <<
|
|
DestSlot << " [");
|
|
// G = Global, F = Function, A = Alias, o = other
|
|
SC_DEBUG((isa<GlobalVariable>(V) ? 'G' :
|
|
(isa<Function> ? 'F' :
|
|
(isa<GlobalAlias> ? 'A' : 'o'))) << "]\n");
|
|
}
|
|
|
|
|
|
/// CreateSlot - Create a new slot for the specified value if it has no name.
|
|
void SlotMachine::CreateFunctionSlot(const Value *V) {
|
|
const Type *VTy = V->getType();
|
|
assert(VTy != Type::VoidTy && !V->hasName() && "Doesn't need a slot!");
|
|
|
|
unsigned DestSlot = fNext++;
|
|
fMap[V] = DestSlot;
|
|
|
|
// G = Global, F = Function, o = other
|
|
SC_DEBUG(" Inserting value [" << VTy << "] = " << V << " slot=" <<
|
|
DestSlot << " [o]\n");
|
|
}
|