2001-08-24 01:05:04 +08:00
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//===-- Execution.cpp - Implement code to simulate the program ------------===//
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//
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// This file contains the actual instruction interpreter.
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//
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//===----------------------------------------------------------------------===//
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#include "Interpreter.h"
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#include "ExecutionAnnotations.h"
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2001-12-04 02:02:31 +08:00
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#include "llvm/iPHINode.h"
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2001-08-24 01:05:04 +08:00
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#include "llvm/iOther.h"
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#include "llvm/iTerminators.h"
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2001-08-27 13:16:50 +08:00
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#include "llvm/iMemory.h"
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2001-08-24 01:05:04 +08:00
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#include "llvm/Type.h"
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#include "llvm/ConstPoolVals.h"
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#include "llvm/Assembly/Writer.h"
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2001-09-29 06:56:43 +08:00
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#include "llvm/Target/TargetData.h"
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2001-10-15 13:51:48 +08:00
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#include "llvm/GlobalVariable.h"
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2001-10-31 04:27:31 +08:00
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#include <math.h> // For fmod
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2001-11-07 12:23:00 +08:00
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#include <signal.h>
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#include <setjmp.h>
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2001-10-15 13:51:48 +08:00
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// Create a TargetData structure to handle memory addressing and size/alignment
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// computations
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//
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static TargetData TD("lli Interpreter");
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2001-11-08 03:46:27 +08:00
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CachedWriter CW; // Object to accelerate printing of LLVM
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2001-11-07 12:23:00 +08:00
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2001-11-13 00:19:45 +08:00
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#ifdef PROFILE_STRUCTURE_FIELDS
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2001-11-27 08:03:19 +08:00
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#include "Support/CommandLine.h"
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2001-11-13 00:19:45 +08:00
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static cl::Flag ProfileStructureFields("profilestructfields",
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"Profile Structure Field Accesses");
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#include <map>
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static map<const StructType *, vector<unsigned> > FieldAccessCounts;
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#endif
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2001-11-07 12:23:00 +08:00
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sigjmp_buf SignalRecoverBuffer;
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2001-11-07 13:31:27 +08:00
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static bool InInstruction = false;
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2001-11-07 12:23:00 +08:00
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extern "C" {
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static void SigHandler(int Signal) {
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2001-11-07 13:31:27 +08:00
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if (InInstruction)
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siglongjmp(SignalRecoverBuffer, Signal);
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2001-11-07 12:23:00 +08:00
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}
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}
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static void initializeSignalHandlers() {
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struct sigaction Action;
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Action.sa_handler = SigHandler;
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Action.sa_flags = SA_SIGINFO;
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sigemptyset(&Action.sa_mask);
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sigaction(SIGSEGV, &Action, 0);
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sigaction(SIGBUS, &Action, 0);
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2001-11-07 13:31:27 +08:00
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sigaction(SIGINT, &Action, 0);
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2001-11-08 03:46:27 +08:00
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sigaction(SIGFPE, &Action, 0);
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2001-11-07 12:23:00 +08:00
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}
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2001-10-15 13:51:48 +08:00
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2001-10-15 21:25:40 +08:00
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//===----------------------------------------------------------------------===//
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// Value Manipulation code
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//===----------------------------------------------------------------------===//
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static unsigned getOperandSlot(Value *V) {
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SlotNumber *SN = (SlotNumber*)V->getAnnotation(SlotNumberAID);
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assert(SN && "Operand does not have a slot number annotation!");
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return SN->SlotNum;
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}
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#define GET_CONST_VAL(TY, CLASS) \
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case Type::TY##TyID: Result.TY##Val = cast<CLASS>(CPV)->getValue(); break
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static GenericValue getOperandValue(Value *V, ExecutionContext &SF) {
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if (ConstPoolVal *CPV = dyn_cast<ConstPoolVal>(V)) {
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GenericValue Result;
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switch (CPV->getType()->getPrimitiveID()) {
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GET_CONST_VAL(Bool , ConstPoolBool);
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GET_CONST_VAL(UByte , ConstPoolUInt);
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GET_CONST_VAL(SByte , ConstPoolSInt);
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GET_CONST_VAL(UShort , ConstPoolUInt);
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GET_CONST_VAL(Short , ConstPoolSInt);
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GET_CONST_VAL(UInt , ConstPoolUInt);
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GET_CONST_VAL(Int , ConstPoolSInt);
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2001-10-16 03:18:26 +08:00
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GET_CONST_VAL(ULong , ConstPoolUInt);
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GET_CONST_VAL(Long , ConstPoolSInt);
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2001-10-15 21:25:40 +08:00
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GET_CONST_VAL(Float , ConstPoolFP);
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GET_CONST_VAL(Double , ConstPoolFP);
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case Type::PointerTyID:
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if (isa<ConstPoolPointerNull>(CPV)) {
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2001-11-08 03:46:27 +08:00
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Result.PointerVal = 0;
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2001-10-15 21:25:40 +08:00
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} else if (ConstPoolPointerRef *CPR =dyn_cast<ConstPoolPointerRef>(CPV)) {
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assert(0 && "Not implemented!");
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} else {
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assert(0 && "Unknown constant pointer type!");
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}
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break;
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default:
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cout << "ERROR: Constant unimp for type: " << CPV->getType() << endl;
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}
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return Result;
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} else if (GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
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GlobalAddress *Address =
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(GlobalAddress*)GV->getOrCreateAnnotation(GlobalAddressAID);
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GenericValue Result;
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2001-11-08 03:46:27 +08:00
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Result.PointerVal = (PointerTy)(GenericValue*)Address->Ptr;
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2001-10-15 21:25:40 +08:00
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return Result;
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} else {
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unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
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2001-10-31 04:27:31 +08:00
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unsigned OpSlot = getOperandSlot(V);
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assert(TyP < SF.Values.size() &&
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OpSlot < SF.Values[TyP].size() && "Value out of range!");
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2001-10-15 21:25:40 +08:00
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return SF.Values[TyP][getOperandSlot(V)];
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}
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}
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static void printOperandInfo(Value *V, ExecutionContext &SF) {
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if (isa<ConstPoolVal>(V)) {
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cout << "Constant Pool Value\n";
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} else if (isa<GlobalValue>(V)) {
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cout << "Global Value\n";
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} else {
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unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
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unsigned Slot = getOperandSlot(V);
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cout << "Value=" << (void*)V << " TypeID=" << TyP << " Slot=" << Slot
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2001-11-08 03:46:27 +08:00
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<< " Addr=" << &SF.Values[TyP][Slot] << " SF=" << &SF
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<< " Contents=0x";
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const unsigned char *Buf = (const unsigned char*)&SF.Values[TyP][Slot];
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for (unsigned i = 0; i < sizeof(GenericValue); ++i) {
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unsigned char Cur = Buf[i];
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cout << ( Cur >= 160? char((Cur>>4)+'A'-10) : char((Cur>>4) + '0'))
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<< ((Cur&15) >= 10? char((Cur&15)+'A'-10) : char((Cur&15) + '0'));
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}
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cout << endl;
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2001-10-15 21:25:40 +08:00
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}
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}
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static void SetValue(Value *V, GenericValue Val, ExecutionContext &SF) {
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unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
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//cout << "Setting value: " << &SF.Values[TyP][getOperandSlot(V)] << endl;
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SF.Values[TyP][getOperandSlot(V)] = Val;
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}
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2001-10-15 13:51:48 +08:00
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//===----------------------------------------------------------------------===//
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// Annotation Wrangling code
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//===----------------------------------------------------------------------===//
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void Interpreter::initializeExecutionEngine() {
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AnnotationManager::registerAnnotationFactory(MethodInfoAID,
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&MethodInfo::Create);
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AnnotationManager::registerAnnotationFactory(GlobalAddressAID,
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&GlobalAddress::Create);
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2001-11-07 12:23:00 +08:00
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initializeSignalHandlers();
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2001-10-15 13:51:48 +08:00
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}
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// InitializeMemory - Recursive function to apply a ConstPool value into the
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// specified memory location...
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//
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static void InitializeMemory(ConstPoolVal *Init, char *Addr) {
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2001-10-15 21:25:40 +08:00
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#define INITIALIZE_MEMORY(TYID, CLASS, TY) \
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case Type::TYID##TyID: { \
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2001-10-15 13:51:48 +08:00
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TY Tmp = cast<CLASS>(Init)->getValue(); \
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2001-10-15 21:25:40 +08:00
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memcpy(Addr, &Tmp, sizeof(TY)); \
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2001-10-15 13:51:48 +08:00
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} return
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switch (Init->getType()->getPrimitiveID()) {
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INITIALIZE_MEMORY(Bool , ConstPoolBool, bool);
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INITIALIZE_MEMORY(UByte , ConstPoolUInt, unsigned char);
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INITIALIZE_MEMORY(SByte , ConstPoolSInt, signed char);
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INITIALIZE_MEMORY(UShort , ConstPoolUInt, unsigned short);
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INITIALIZE_MEMORY(Short , ConstPoolSInt, signed short);
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INITIALIZE_MEMORY(UInt , ConstPoolUInt, unsigned int);
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INITIALIZE_MEMORY(Int , ConstPoolSInt, signed int);
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INITIALIZE_MEMORY(ULong , ConstPoolUInt, uint64_t);
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INITIALIZE_MEMORY(Long , ConstPoolSInt, int64_t);
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INITIALIZE_MEMORY(Float , ConstPoolFP , float);
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INITIALIZE_MEMORY(Double , ConstPoolFP , double);
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#undef INITIALIZE_MEMORY
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2001-10-15 21:25:40 +08:00
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2001-10-15 13:51:48 +08:00
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case Type::ArrayTyID: {
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ConstPoolArray *CPA = cast<ConstPoolArray>(Init);
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const vector<Use> &Val = CPA->getValues();
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unsigned ElementSize =
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TD.getTypeSize(cast<ArrayType>(CPA->getType())->getElementType());
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for (unsigned i = 0; i < Val.size(); ++i)
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InitializeMemory(cast<ConstPoolVal>(Val[i].get()), Addr+i*ElementSize);
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return;
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}
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2001-10-15 21:25:40 +08:00
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case Type::StructTyID: {
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ConstPoolStruct *CPS = cast<ConstPoolStruct>(Init);
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const StructLayout *SL=TD.getStructLayout(cast<StructType>(CPS->getType()));
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const vector<Use> &Val = CPS->getValues();
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for (unsigned i = 0; i < Val.size(); ++i)
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InitializeMemory(cast<ConstPoolVal>(Val[i].get()),
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Addr+SL->MemberOffsets[i]);
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return;
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}
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2001-10-15 13:51:48 +08:00
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case Type::PointerTyID:
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2001-10-15 21:25:40 +08:00
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if (isa<ConstPoolPointerNull>(Init)) {
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*(void**)Addr = 0;
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} else if (ConstPoolPointerRef *CPR = dyn_cast<ConstPoolPointerRef>(Init)) {
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GlobalAddress *Address =
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(GlobalAddress*)CPR->getValue()->getOrCreateAnnotation(GlobalAddressAID);
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*(void**)Addr = (GenericValue*)Address->Ptr;
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} else {
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assert(0 && "Unknown Constant pointer type!");
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}
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return;
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2001-10-15 13:51:48 +08:00
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default:
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2001-11-07 13:31:27 +08:00
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CW << "Bad Type: " << Init->getType() << endl;
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2001-10-15 13:51:48 +08:00
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assert(0 && "Unknown constant type to initialize memory with!");
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}
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}
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Annotation *GlobalAddress::Create(AnnotationID AID, const Annotable *O, void *){
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assert(AID == GlobalAddressAID);
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// This annotation will only be created on GlobalValue objects...
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GlobalValue *GVal = cast<GlobalValue>((Value*)O);
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if (isa<Method>(GVal)) {
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// The GlobalAddress object for a method is just a pointer to method itself.
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// Don't delete it when the annotation is gone though!
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return new GlobalAddress(GVal, false);
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}
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// Handle the case of a global variable...
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assert(isa<GlobalVariable>(GVal) &&
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"Global value found that isn't a method or global variable!");
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GlobalVariable *GV = cast<GlobalVariable>(GVal);
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// First off, we must allocate space for the global variable to point at...
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const Type *Ty = GV->getType()->getValueType(); // Type to be allocated
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unsigned NumElements = 1;
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if (isa<ArrayType>(Ty) && cast<ArrayType>(Ty)->isUnsized()) {
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assert(GV->hasInitializer() && "Const val must have an initializer!");
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// Allocating a unsized array type?
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Ty = cast<const ArrayType>(Ty)->getElementType(); // Get the actual type...
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// Get the number of elements being allocated by the array...
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NumElements =cast<ConstPoolArray>(GV->getInitializer())->getValues().size();
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}
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// Allocate enough memory to hold the type...
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2001-11-08 03:46:27 +08:00
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void *Addr = calloc(NumElements, TD.getTypeSize(Ty));
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2001-10-15 13:51:48 +08:00
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assert(Addr != 0 && "Null pointer returned by malloc!");
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// Initialize the memory if there is an initializer...
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if (GV->hasInitializer())
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InitializeMemory(GV->getInitializer(), (char*)Addr);
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return new GlobalAddress(Addr, true); // Simply invoke the ctor
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}
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2001-08-24 01:05:04 +08:00
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//===----------------------------------------------------------------------===//
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// Binary Instruction Implementations
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//===----------------------------------------------------------------------===//
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#define IMPLEMENT_BINARY_OPERATOR(OP, TY) \
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case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.TY##Val; break
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static GenericValue executeAddInst(GenericValue Src1, GenericValue Src2,
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const Type *Ty, ExecutionContext &SF) {
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GenericValue Dest;
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switch (Ty->getPrimitiveID()) {
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IMPLEMENT_BINARY_OPERATOR(+, UByte);
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IMPLEMENT_BINARY_OPERATOR(+, SByte);
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IMPLEMENT_BINARY_OPERATOR(+, UShort);
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IMPLEMENT_BINARY_OPERATOR(+, Short);
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IMPLEMENT_BINARY_OPERATOR(+, UInt);
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IMPLEMENT_BINARY_OPERATOR(+, Int);
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2001-10-16 03:18:26 +08:00
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IMPLEMENT_BINARY_OPERATOR(+, ULong);
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IMPLEMENT_BINARY_OPERATOR(+, Long);
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2001-08-24 01:05:04 +08:00
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IMPLEMENT_BINARY_OPERATOR(+, Float);
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IMPLEMENT_BINARY_OPERATOR(+, Double);
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2001-10-27 16:28:11 +08:00
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IMPLEMENT_BINARY_OPERATOR(+, Pointer);
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2001-08-24 01:05:04 +08:00
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default:
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cout << "Unhandled type for Add instruction: " << Ty << endl;
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}
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return Dest;
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}
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static GenericValue executeSubInst(GenericValue Src1, GenericValue Src2,
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const Type *Ty, ExecutionContext &SF) {
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GenericValue Dest;
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switch (Ty->getPrimitiveID()) {
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IMPLEMENT_BINARY_OPERATOR(-, UByte);
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IMPLEMENT_BINARY_OPERATOR(-, SByte);
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IMPLEMENT_BINARY_OPERATOR(-, UShort);
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IMPLEMENT_BINARY_OPERATOR(-, Short);
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IMPLEMENT_BINARY_OPERATOR(-, UInt);
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IMPLEMENT_BINARY_OPERATOR(-, Int);
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2001-10-16 03:18:26 +08:00
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IMPLEMENT_BINARY_OPERATOR(-, ULong);
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IMPLEMENT_BINARY_OPERATOR(-, Long);
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2001-08-24 01:05:04 +08:00
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IMPLEMENT_BINARY_OPERATOR(-, Float);
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IMPLEMENT_BINARY_OPERATOR(-, Double);
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2001-10-27 16:28:11 +08:00
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IMPLEMENT_BINARY_OPERATOR(-, Pointer);
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2001-08-24 01:05:04 +08:00
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default:
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cout << "Unhandled type for Sub instruction: " << Ty << endl;
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}
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return Dest;
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}
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|
2001-10-27 16:28:11 +08:00
|
|
|
static GenericValue executeMulInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, UByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, SByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, UShort);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, Short);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, UInt);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, Int);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, ULong);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, Long);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, Float);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, Double);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(*, Pointer);
|
|
|
|
default:
|
|
|
|
cout << "Unhandled type for Mul instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static GenericValue executeDivInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, UByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, SByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, UShort);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, Short);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, UInt);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, Int);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, ULong);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, Long);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, Float);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, Double);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(/, Pointer);
|
|
|
|
default:
|
2001-10-31 04:27:31 +08:00
|
|
|
cout << "Unhandled type for Div instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static GenericValue executeRemInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, UByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, SByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, UShort);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, Short);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, UInt);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, Int);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, ULong);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, Long);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(%, Pointer);
|
|
|
|
case Type::FloatTyID:
|
|
|
|
Dest.FloatVal = fmod(Src1.FloatVal, Src2.FloatVal);
|
|
|
|
break;
|
|
|
|
case Type::DoubleTyID:
|
|
|
|
Dest.DoubleVal = fmod(Src1.DoubleVal, Src2.DoubleVal);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
cout << "Unhandled type for Rem instruction: " << Ty << endl;
|
2001-10-27 16:28:11 +08:00
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
2001-11-08 03:46:27 +08:00
|
|
|
static GenericValue executeAndInst(GenericValue Src1, GenericValue Src2,
|
2001-10-31 04:54:36 +08:00
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
2001-11-08 03:46:27 +08:00
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, UByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, SByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, UShort);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, Short);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, UInt);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, Int);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, ULong);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, Long);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(&, Pointer);
|
|
|
|
default:
|
|
|
|
cout << "Unhandled type for And instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static GenericValue executeOrInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, UByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, SByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, UShort);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, Short);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, UInt);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, Int);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, ULong);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, Long);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(|, Pointer);
|
|
|
|
default:
|
|
|
|
cout << "Unhandled type for Or instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
2001-10-31 04:54:36 +08:00
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, UByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, SByte);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, UShort);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, Short);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, UInt);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, Int);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, ULong);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, Long);
|
|
|
|
IMPLEMENT_BINARY_OPERATOR(^, Pointer);
|
|
|
|
default:
|
|
|
|
cout << "Unhandled type for Xor instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
#define IMPLEMENT_SETCC(OP, TY) \
|
|
|
|
case Type::TY##TyID: Dest.BoolVal = Src1.TY##Val OP Src2.TY##Val; break
|
|
|
|
|
|
|
|
static GenericValue executeSetEQInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SETCC(==, UByte);
|
|
|
|
IMPLEMENT_SETCC(==, SByte);
|
|
|
|
IMPLEMENT_SETCC(==, UShort);
|
|
|
|
IMPLEMENT_SETCC(==, Short);
|
|
|
|
IMPLEMENT_SETCC(==, UInt);
|
|
|
|
IMPLEMENT_SETCC(==, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SETCC(==, ULong);
|
|
|
|
IMPLEMENT_SETCC(==, Long);
|
2001-08-24 01:05:04 +08:00
|
|
|
IMPLEMENT_SETCC(==, Float);
|
|
|
|
IMPLEMENT_SETCC(==, Double);
|
2001-08-27 13:16:50 +08:00
|
|
|
IMPLEMENT_SETCC(==, Pointer);
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for SetEQ instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static GenericValue executeSetNEInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SETCC(!=, UByte);
|
|
|
|
IMPLEMENT_SETCC(!=, SByte);
|
|
|
|
IMPLEMENT_SETCC(!=, UShort);
|
|
|
|
IMPLEMENT_SETCC(!=, Short);
|
|
|
|
IMPLEMENT_SETCC(!=, UInt);
|
|
|
|
IMPLEMENT_SETCC(!=, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SETCC(!=, ULong);
|
|
|
|
IMPLEMENT_SETCC(!=, Long);
|
2001-08-24 01:05:04 +08:00
|
|
|
IMPLEMENT_SETCC(!=, Float);
|
|
|
|
IMPLEMENT_SETCC(!=, Double);
|
2001-08-27 13:16:50 +08:00
|
|
|
IMPLEMENT_SETCC(!=, Pointer);
|
2001-11-08 03:46:27 +08:00
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for SetNE instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static GenericValue executeSetLEInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SETCC(<=, UByte);
|
|
|
|
IMPLEMENT_SETCC(<=, SByte);
|
|
|
|
IMPLEMENT_SETCC(<=, UShort);
|
|
|
|
IMPLEMENT_SETCC(<=, Short);
|
|
|
|
IMPLEMENT_SETCC(<=, UInt);
|
|
|
|
IMPLEMENT_SETCC(<=, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SETCC(<=, ULong);
|
|
|
|
IMPLEMENT_SETCC(<=, Long);
|
2001-08-24 01:05:04 +08:00
|
|
|
IMPLEMENT_SETCC(<=, Float);
|
|
|
|
IMPLEMENT_SETCC(<=, Double);
|
2001-08-27 13:16:50 +08:00
|
|
|
IMPLEMENT_SETCC(<=, Pointer);
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for SetLE instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static GenericValue executeSetGEInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SETCC(>=, UByte);
|
|
|
|
IMPLEMENT_SETCC(>=, SByte);
|
|
|
|
IMPLEMENT_SETCC(>=, UShort);
|
|
|
|
IMPLEMENT_SETCC(>=, Short);
|
|
|
|
IMPLEMENT_SETCC(>=, UInt);
|
|
|
|
IMPLEMENT_SETCC(>=, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SETCC(>=, ULong);
|
|
|
|
IMPLEMENT_SETCC(>=, Long);
|
2001-08-24 01:05:04 +08:00
|
|
|
IMPLEMENT_SETCC(>=, Float);
|
|
|
|
IMPLEMENT_SETCC(>=, Double);
|
2001-08-27 13:16:50 +08:00
|
|
|
IMPLEMENT_SETCC(>=, Pointer);
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for SetGE instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static GenericValue executeSetLTInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SETCC(<, UByte);
|
|
|
|
IMPLEMENT_SETCC(<, SByte);
|
|
|
|
IMPLEMENT_SETCC(<, UShort);
|
|
|
|
IMPLEMENT_SETCC(<, Short);
|
|
|
|
IMPLEMENT_SETCC(<, UInt);
|
|
|
|
IMPLEMENT_SETCC(<, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SETCC(<, ULong);
|
|
|
|
IMPLEMENT_SETCC(<, Long);
|
2001-08-24 01:05:04 +08:00
|
|
|
IMPLEMENT_SETCC(<, Float);
|
|
|
|
IMPLEMENT_SETCC(<, Double);
|
2001-08-27 13:16:50 +08:00
|
|
|
IMPLEMENT_SETCC(<, Pointer);
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for SetLT instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static GenericValue executeSetGTInst(GenericValue Src1, GenericValue Src2,
|
|
|
|
const Type *Ty, ExecutionContext &SF) {
|
|
|
|
GenericValue Dest;
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SETCC(>, UByte);
|
|
|
|
IMPLEMENT_SETCC(>, SByte);
|
|
|
|
IMPLEMENT_SETCC(>, UShort);
|
|
|
|
IMPLEMENT_SETCC(>, Short);
|
|
|
|
IMPLEMENT_SETCC(>, UInt);
|
|
|
|
IMPLEMENT_SETCC(>, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SETCC(>, ULong);
|
|
|
|
IMPLEMENT_SETCC(>, Long);
|
2001-08-24 01:05:04 +08:00
|
|
|
IMPLEMENT_SETCC(>, Float);
|
|
|
|
IMPLEMENT_SETCC(>, Double);
|
2001-08-27 13:16:50 +08:00
|
|
|
IMPLEMENT_SETCC(>, Pointer);
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for SetGT instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
return Dest;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void executeBinaryInst(BinaryOperator *I, ExecutionContext &SF) {
|
|
|
|
const Type *Ty = I->getOperand(0)->getType();
|
|
|
|
GenericValue Src1 = getOperandValue(I->getOperand(0), SF);
|
|
|
|
GenericValue Src2 = getOperandValue(I->getOperand(1), SF);
|
|
|
|
GenericValue R; // Result
|
|
|
|
|
|
|
|
switch (I->getOpcode()) {
|
2001-10-31 04:27:31 +08:00
|
|
|
case Instruction::Add: R = executeAddInst (Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::Sub: R = executeSubInst (Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::Mul: R = executeMulInst (Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::Div: R = executeDivInst (Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::Rem: R = executeRemInst (Src1, Src2, Ty, SF); break;
|
2001-11-08 03:46:27 +08:00
|
|
|
case Instruction::And: R = executeAndInst (Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::Or: R = executeOrInst (Src1, Src2, Ty, SF); break;
|
2001-10-31 04:54:36 +08:00
|
|
|
case Instruction::Xor: R = executeXorInst (Src1, Src2, Ty, SF); break;
|
2001-08-24 01:05:04 +08:00
|
|
|
case Instruction::SetEQ: R = executeSetEQInst(Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::SetNE: R = executeSetNEInst(Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::SetLE: R = executeSetLEInst(Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::SetGE: R = executeSetGEInst(Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::SetLT: R = executeSetLTInst(Src1, Src2, Ty, SF); break;
|
|
|
|
case Instruction::SetGT: R = executeSetGTInst(Src1, Src2, Ty, SF); break;
|
|
|
|
default:
|
|
|
|
cout << "Don't know how to handle this binary operator!\n-->" << I;
|
2001-10-31 04:54:36 +08:00
|
|
|
R = Src1;
|
2001-08-24 01:05:04 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
SetValue(I, R, SF);
|
|
|
|
}
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Terminator Instruction Implementations
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2001-11-13 00:28:48 +08:00
|
|
|
static void PerformExitStuff() {
|
|
|
|
#ifdef PROFILE_STRUCTURE_FIELDS
|
|
|
|
// Print out structure field accounting information...
|
|
|
|
if (!FieldAccessCounts.empty()) {
|
2001-11-13 04:13:14 +08:00
|
|
|
CW << "Profile Field Access Counts:\n";
|
2001-11-13 00:28:48 +08:00
|
|
|
map<const StructType *, vector<unsigned> >::iterator
|
|
|
|
I = FieldAccessCounts.begin(), E = FieldAccessCounts.end();
|
|
|
|
for (; I != E; ++I) {
|
|
|
|
vector<unsigned> &OfC = I->second;
|
|
|
|
CW << " '" << (Value*)I->first << "'\t- Sum=";
|
|
|
|
|
|
|
|
unsigned Sum = 0;
|
|
|
|
for (unsigned i = 0; i < OfC.size(); ++i)
|
|
|
|
Sum += OfC[i];
|
|
|
|
CW << Sum << " - ";
|
|
|
|
|
|
|
|
for (unsigned i = 0; i < OfC.size(); ++i) {
|
|
|
|
if (i) CW << ", ";
|
|
|
|
CW << OfC[i];
|
|
|
|
}
|
|
|
|
CW << endl;
|
|
|
|
}
|
|
|
|
CW << endl;
|
2001-11-13 04:13:14 +08:00
|
|
|
|
|
|
|
CW << "Profile Field Access Percentages:\n";
|
|
|
|
cout.precision(3);
|
|
|
|
for (I = FieldAccessCounts.begin(); I != E; ++I) {
|
|
|
|
vector<unsigned> &OfC = I->second;
|
|
|
|
unsigned Sum = 0;
|
|
|
|
for (unsigned i = 0; i < OfC.size(); ++i)
|
|
|
|
Sum += OfC[i];
|
|
|
|
|
|
|
|
CW << " '" << (Value*)I->first << "'\t- ";
|
|
|
|
for (unsigned i = 0; i < OfC.size(); ++i) {
|
|
|
|
if (i) CW << ", ";
|
|
|
|
CW << double(OfC[i])/Sum;
|
|
|
|
}
|
|
|
|
CW << endl;
|
|
|
|
}
|
|
|
|
CW << endl;
|
|
|
|
|
2001-11-13 00:28:48 +08:00
|
|
|
FieldAccessCounts.clear();
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2001-10-27 12:15:57 +08:00
|
|
|
void Interpreter::exitCalled(GenericValue GV) {
|
|
|
|
cout << "Program returned ";
|
|
|
|
print(Type::IntTy, GV);
|
|
|
|
cout << " via 'void exit(int)'\n";
|
|
|
|
|
|
|
|
ExitCode = GV.SByteVal;
|
|
|
|
ECStack.clear();
|
2001-11-13 00:28:48 +08:00
|
|
|
PerformExitStuff();
|
2001-10-27 12:15:57 +08:00
|
|
|
}
|
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
void Interpreter::executeRetInst(ReturnInst *I, ExecutionContext &SF) {
|
|
|
|
const Type *RetTy = 0;
|
|
|
|
GenericValue Result;
|
|
|
|
|
|
|
|
// Save away the return value... (if we are not 'ret void')
|
|
|
|
if (I->getNumOperands()) {
|
|
|
|
RetTy = I->getReturnValue()->getType();
|
|
|
|
Result = getOperandValue(I->getReturnValue(), SF);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Save previously executing meth
|
|
|
|
const Method *M = ECStack.back().CurMethod;
|
|
|
|
|
|
|
|
// Pop the current stack frame... this invalidates SF
|
|
|
|
ECStack.pop_back();
|
|
|
|
|
|
|
|
if (ECStack.empty()) { // Finished main. Put result into exit code...
|
|
|
|
if (RetTy) { // Nonvoid return type?
|
2001-11-07 12:23:00 +08:00
|
|
|
CW << "Method " << M->getType() << " \"" << M->getName()
|
|
|
|
<< "\" returned ";
|
2001-10-15 13:51:48 +08:00
|
|
|
print(RetTy, Result);
|
2001-08-24 01:05:04 +08:00
|
|
|
cout << endl;
|
|
|
|
|
|
|
|
if (RetTy->isIntegral())
|
|
|
|
ExitCode = Result.SByteVal; // Capture the exit code of the program
|
|
|
|
} else {
|
|
|
|
ExitCode = 0;
|
|
|
|
}
|
2001-11-13 00:19:45 +08:00
|
|
|
|
2001-11-13 00:28:48 +08:00
|
|
|
PerformExitStuff();
|
2001-08-24 01:05:04 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If we have a previous stack frame, and we have a previous call, fill in
|
|
|
|
// the return value...
|
|
|
|
//
|
|
|
|
ExecutionContext &NewSF = ECStack.back();
|
|
|
|
if (NewSF.Caller) {
|
|
|
|
if (NewSF.Caller->getType() != Type::VoidTy) // Save result...
|
|
|
|
SetValue(NewSF.Caller, Result, NewSF);
|
|
|
|
|
|
|
|
NewSF.Caller = 0; // We returned from the call...
|
2001-09-10 12:49:44 +08:00
|
|
|
} else {
|
|
|
|
// This must be a function that is executing because of a user 'call'
|
|
|
|
// instruction.
|
2001-11-07 12:23:00 +08:00
|
|
|
CW << "Method " << M->getType() << " \"" << M->getName()
|
|
|
|
<< "\" returned ";
|
2001-10-15 13:51:48 +08:00
|
|
|
print(RetTy, Result);
|
2001-09-10 12:49:44 +08:00
|
|
|
cout << endl;
|
2001-08-24 01:05:04 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void Interpreter::executeBrInst(BranchInst *I, ExecutionContext &SF) {
|
|
|
|
SF.PrevBB = SF.CurBB; // Update PrevBB so that PHI nodes work...
|
|
|
|
BasicBlock *Dest;
|
|
|
|
|
|
|
|
Dest = I->getSuccessor(0); // Uncond branches have a fixed dest...
|
|
|
|
if (!I->isUnconditional()) {
|
2001-10-31 04:27:31 +08:00
|
|
|
Value *Cond = I->getCondition();
|
|
|
|
GenericValue CondVal = getOperandValue(Cond, SF);
|
|
|
|
if (CondVal.BoolVal == 0) // If false cond...
|
2001-08-24 01:05:04 +08:00
|
|
|
Dest = I->getSuccessor(1);
|
|
|
|
}
|
|
|
|
SF.CurBB = Dest; // Update CurBB to branch destination
|
|
|
|
SF.CurInst = SF.CurBB->begin(); // Update new instruction ptr...
|
|
|
|
}
|
|
|
|
|
2001-08-27 13:16:50 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Memory Instruction Implementations
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
void Interpreter::executeAllocInst(AllocationInst *I, ExecutionContext &SF) {
|
|
|
|
const Type *Ty = I->getType()->getValueType(); // Type to be allocated
|
|
|
|
unsigned NumElements = 1;
|
|
|
|
|
|
|
|
if (I->getNumOperands()) { // Allocating a unsized array type?
|
2001-10-02 11:41:24 +08:00
|
|
|
assert(isa<ArrayType>(Ty) && cast<const ArrayType>(Ty)->isUnsized() &&
|
2001-08-27 13:16:50 +08:00
|
|
|
"Allocation inst with size operand for !unsized array type???");
|
2001-10-02 11:41:24 +08:00
|
|
|
Ty = cast<const ArrayType>(Ty)->getElementType(); // Get the actual type...
|
2001-08-27 13:16:50 +08:00
|
|
|
|
|
|
|
// Get the number of elements being allocated by the array...
|
|
|
|
GenericValue NumEl = getOperandValue(I->getOperand(0), SF);
|
|
|
|
NumElements = NumEl.UIntVal;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Allocate enough memory to hold the type...
|
|
|
|
GenericValue Result;
|
2001-11-08 03:46:27 +08:00
|
|
|
// FIXME: Don't use CALLOC, use a tainted malloc.
|
|
|
|
Result.PointerVal = (PointerTy)calloc(NumElements, TD.getTypeSize(Ty));
|
|
|
|
assert(Result.PointerVal != 0 && "Null pointer returned by malloc!");
|
2001-08-27 13:16:50 +08:00
|
|
|
SetValue(I, Result, SF);
|
|
|
|
|
|
|
|
if (I->getOpcode() == Instruction::Alloca) {
|
2001-10-15 13:51:48 +08:00
|
|
|
// TODO: FIXME: alloca should keep track of memory to free it later...
|
2001-08-27 13:16:50 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void executeFreeInst(FreeInst *I, ExecutionContext &SF) {
|
|
|
|
assert(I->getOperand(0)->getType()->isPointerType() && "Freeing nonptr?");
|
|
|
|
GenericValue Value = getOperandValue(I->getOperand(0), SF);
|
|
|
|
// TODO: Check to make sure memory is allocated
|
2001-11-08 03:46:27 +08:00
|
|
|
free((void*)Value.PointerVal); // Free memory
|
2001-08-27 13:16:50 +08:00
|
|
|
}
|
|
|
|
|
2001-10-30 03:32:19 +08:00
|
|
|
|
|
|
|
// getElementOffset - The workhorse for getelementptr, load and store. This
|
|
|
|
// function returns the offset that arguments ArgOff+1 -> NumArgs specify for
|
|
|
|
// the pointer type specified by argument Arg.
|
|
|
|
//
|
2001-11-27 02:18:18 +08:00
|
|
|
static PointerTy getElementOffset(MemAccessInst *I, ExecutionContext &SF) {
|
|
|
|
assert(isa<PointerType>(I->getPointerOperand()->getType()) &&
|
2001-10-30 03:32:19 +08:00
|
|
|
"Cannot getElementOffset of a nonpointer type!");
|
|
|
|
|
2001-11-08 03:46:27 +08:00
|
|
|
PointerTy Total = 0;
|
2001-10-30 03:32:19 +08:00
|
|
|
const Type *Ty =
|
2001-11-27 02:18:18 +08:00
|
|
|
cast<PointerType>(I->getPointerOperand()->getType())->getValueType();
|
2001-10-30 03:32:19 +08:00
|
|
|
|
2001-11-27 02:18:18 +08:00
|
|
|
unsigned ArgOff = I->getFirstIndexOperandNumber();
|
2001-10-30 03:32:19 +08:00
|
|
|
while (ArgOff < I->getNumOperands()) {
|
2001-11-27 02:18:18 +08:00
|
|
|
if (const StructType *STy = dyn_cast<StructType>(Ty)) {
|
|
|
|
const StructLayout *SLO = TD.getStructLayout(STy);
|
|
|
|
|
|
|
|
// Indicies must be ubyte constants...
|
|
|
|
const ConstPoolUInt *CPU = cast<ConstPoolUInt>(I->getOperand(ArgOff++));
|
|
|
|
assert(CPU->getType() == Type::UByteTy);
|
|
|
|
unsigned Index = CPU->getValue();
|
|
|
|
|
2001-11-13 00:19:45 +08:00
|
|
|
#ifdef PROFILE_STRUCTURE_FIELDS
|
2001-11-27 02:18:18 +08:00
|
|
|
if (ProfileStructureFields) {
|
|
|
|
// Do accounting for this field...
|
|
|
|
vector<unsigned> &OfC = FieldAccessCounts[STy];
|
|
|
|
if (OfC.size() == 0) OfC.resize(STy->getElementTypes().size());
|
|
|
|
OfC[Index]++;
|
|
|
|
}
|
2001-11-13 00:19:45 +08:00
|
|
|
#endif
|
2001-11-27 02:18:18 +08:00
|
|
|
|
|
|
|
Total += SLO->MemberOffsets[Index];
|
|
|
|
Ty = STy->getElementTypes()[Index];
|
|
|
|
} else {
|
|
|
|
const ArrayType *AT = cast<ArrayType>(Ty);
|
|
|
|
|
|
|
|
// Get the index number for the array... which must be uint type...
|
|
|
|
assert(I->getOperand(ArgOff)->getType() == Type::UIntTy);
|
|
|
|
unsigned Idx = getOperandValue(I->getOperand(ArgOff++), SF).UIntVal;
|
|
|
|
if (AT->isSized() && Idx >= (unsigned)AT->getNumElements()) {
|
|
|
|
cerr << "Out of range memory access to element #" << Idx
|
|
|
|
<< " of a " << AT->getNumElements() << " element array."
|
|
|
|
<< " Subscript #" << (ArgOff-I->getFirstIndexOperandNumber())
|
|
|
|
<< "\n";
|
|
|
|
// Get outta here!!!
|
|
|
|
siglongjmp(SignalRecoverBuffer, -1);
|
|
|
|
}
|
2001-11-13 00:19:45 +08:00
|
|
|
|
2001-11-27 02:18:18 +08:00
|
|
|
Ty = AT->getElementType();
|
|
|
|
unsigned Size = TD.getTypeSize(Ty);
|
|
|
|
Total += Size*Idx;
|
|
|
|
}
|
2001-10-30 03:32:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return Total;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void executeGEPInst(GetElementPtrInst *I, ExecutionContext &SF) {
|
2001-11-14 19:28:18 +08:00
|
|
|
GenericValue SRC = getOperandValue(I->getPointerOperand(), SF);
|
2001-11-08 03:46:27 +08:00
|
|
|
PointerTy SrcPtr = SRC.PointerVal;
|
2001-10-30 03:32:19 +08:00
|
|
|
|
|
|
|
GenericValue Result;
|
2001-11-27 02:18:18 +08:00
|
|
|
Result.PointerVal = SrcPtr + getElementOffset(I, SF);
|
2001-10-30 03:32:19 +08:00
|
|
|
SetValue(I, Result, SF);
|
|
|
|
}
|
|
|
|
|
2001-08-27 13:16:50 +08:00
|
|
|
static void executeLoadInst(LoadInst *I, ExecutionContext &SF) {
|
2001-11-14 19:28:18 +08:00
|
|
|
GenericValue SRC = getOperandValue(I->getPointerOperand(), SF);
|
2001-11-08 03:46:27 +08:00
|
|
|
PointerTy SrcPtr = SRC.PointerVal;
|
2001-11-27 02:18:18 +08:00
|
|
|
PointerTy Offset = getElementOffset(I, SF); // Handle any structure indices
|
2001-10-31 04:27:31 +08:00
|
|
|
SrcPtr += Offset;
|
2001-10-30 03:32:19 +08:00
|
|
|
|
|
|
|
GenericValue *Ptr = (GenericValue*)SrcPtr;
|
2001-08-27 13:16:50 +08:00
|
|
|
GenericValue Result;
|
|
|
|
|
|
|
|
switch (I->getType()->getPrimitiveID()) {
|
|
|
|
case Type::BoolTyID:
|
|
|
|
case Type::UByteTyID:
|
2001-11-08 03:46:27 +08:00
|
|
|
case Type::SByteTyID: Result.SByteVal = Ptr->SByteVal; break;
|
2001-08-27 13:16:50 +08:00
|
|
|
case Type::UShortTyID:
|
2001-11-08 03:46:27 +08:00
|
|
|
case Type::ShortTyID: Result.ShortVal = Ptr->ShortVal; break;
|
2001-08-27 13:16:50 +08:00
|
|
|
case Type::UIntTyID:
|
2001-11-08 03:46:27 +08:00
|
|
|
case Type::IntTyID: Result.IntVal = Ptr->IntVal; break;
|
2001-10-16 03:18:26 +08:00
|
|
|
case Type::ULongTyID:
|
2001-11-08 03:46:27 +08:00
|
|
|
case Type::LongTyID: Result.ULongVal = Ptr->ULongVal; break;
|
|
|
|
case Type::PointerTyID: Result.PointerVal = Ptr->PointerVal; break;
|
|
|
|
case Type::FloatTyID: Result.FloatVal = Ptr->FloatVal; break;
|
|
|
|
case Type::DoubleTyID: Result.DoubleVal = Ptr->DoubleVal; break;
|
2001-08-27 13:16:50 +08:00
|
|
|
default:
|
|
|
|
cout << "Cannot load value of type " << I->getType() << "!\n";
|
|
|
|
}
|
|
|
|
|
|
|
|
SetValue(I, Result, SF);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void executeStoreInst(StoreInst *I, ExecutionContext &SF) {
|
2001-11-14 19:28:18 +08:00
|
|
|
GenericValue SRC = getOperandValue(I->getPointerOperand(), SF);
|
2001-11-08 03:46:27 +08:00
|
|
|
PointerTy SrcPtr = SRC.PointerVal;
|
2001-11-27 02:18:18 +08:00
|
|
|
SrcPtr += getElementOffset(I, SF); // Handle any structure indices
|
2001-10-30 03:32:19 +08:00
|
|
|
|
|
|
|
GenericValue *Ptr = (GenericValue *)SrcPtr;
|
2001-08-27 13:16:50 +08:00
|
|
|
GenericValue Val = getOperandValue(I->getOperand(0), SF);
|
|
|
|
|
|
|
|
switch (I->getOperand(0)->getType()->getPrimitiveID()) {
|
|
|
|
case Type::BoolTyID:
|
|
|
|
case Type::UByteTyID:
|
|
|
|
case Type::SByteTyID: Ptr->SByteVal = Val.SByteVal; break;
|
|
|
|
case Type::UShortTyID:
|
|
|
|
case Type::ShortTyID: Ptr->ShortVal = Val.ShortVal; break;
|
|
|
|
case Type::UIntTyID:
|
|
|
|
case Type::IntTyID: Ptr->IntVal = Val.IntVal; break;
|
2001-10-16 03:18:26 +08:00
|
|
|
case Type::ULongTyID:
|
2001-11-08 03:46:27 +08:00
|
|
|
case Type::LongTyID: Ptr->LongVal = Val.LongVal; break;
|
|
|
|
case Type::PointerTyID: Ptr->PointerVal = Val.PointerVal; break;
|
2001-08-27 13:16:50 +08:00
|
|
|
case Type::FloatTyID: Ptr->FloatVal = Val.FloatVal; break;
|
|
|
|
case Type::DoubleTyID: Ptr->DoubleVal = Val.DoubleVal; break;
|
|
|
|
default:
|
|
|
|
cout << "Cannot store value of type " << I->getType() << "!\n";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Miscellaneous Instruction Implementations
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
void Interpreter::executeCallInst(CallInst *I, ExecutionContext &SF) {
|
|
|
|
ECStack.back().Caller = I;
|
2001-09-10 12:49:44 +08:00
|
|
|
vector<GenericValue> ArgVals;
|
|
|
|
ArgVals.reserve(I->getNumOperands()-1);
|
|
|
|
for (unsigned i = 1; i < I->getNumOperands(); ++i)
|
|
|
|
ArgVals.push_back(getOperandValue(I->getOperand(i), SF));
|
|
|
|
|
2001-11-08 04:12:30 +08:00
|
|
|
// To handle indirect calls, we must get the pointer value from the argument
|
|
|
|
// and treat it as a method pointer.
|
|
|
|
GenericValue SRC = getOperandValue(I->getCalledValue(), SF);
|
|
|
|
|
|
|
|
callMethod((Method*)SRC.PointerVal, ArgVals);
|
2001-08-24 01:05:04 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void executePHINode(PHINode *I, ExecutionContext &SF) {
|
|
|
|
BasicBlock *PrevBB = SF.PrevBB;
|
|
|
|
Value *IncomingValue = 0;
|
|
|
|
|
|
|
|
// Search for the value corresponding to this previous bb...
|
|
|
|
for (unsigned i = I->getNumIncomingValues(); i > 0;) {
|
|
|
|
if (I->getIncomingBlock(--i) == PrevBB) {
|
|
|
|
IncomingValue = I->getIncomingValue(i);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
assert(IncomingValue && "No PHI node predecessor for current PrevBB!");
|
|
|
|
|
|
|
|
// Found the value, set as the result...
|
|
|
|
SetValue(I, getOperandValue(IncomingValue, SF), SF);
|
|
|
|
}
|
|
|
|
|
2001-08-27 13:16:50 +08:00
|
|
|
#define IMPLEMENT_SHIFT(OP, TY) \
|
|
|
|
case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.UByteVal; break
|
|
|
|
|
|
|
|
static void executeShlInst(ShiftInst *I, ExecutionContext &SF) {
|
|
|
|
const Type *Ty = I->getOperand(0)->getType();
|
|
|
|
GenericValue Src1 = getOperandValue(I->getOperand(0), SF);
|
|
|
|
GenericValue Src2 = getOperandValue(I->getOperand(1), SF);
|
|
|
|
GenericValue Dest;
|
|
|
|
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SHIFT(<<, UByte);
|
|
|
|
IMPLEMENT_SHIFT(<<, SByte);
|
|
|
|
IMPLEMENT_SHIFT(<<, UShort);
|
|
|
|
IMPLEMENT_SHIFT(<<, Short);
|
|
|
|
IMPLEMENT_SHIFT(<<, UInt);
|
|
|
|
IMPLEMENT_SHIFT(<<, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SHIFT(<<, ULong);
|
|
|
|
IMPLEMENT_SHIFT(<<, Long);
|
2001-08-27 13:16:50 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for Shl instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
SetValue(I, Dest, SF);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void executeShrInst(ShiftInst *I, ExecutionContext &SF) {
|
|
|
|
const Type *Ty = I->getOperand(0)->getType();
|
|
|
|
GenericValue Src1 = getOperandValue(I->getOperand(0), SF);
|
|
|
|
GenericValue Src2 = getOperandValue(I->getOperand(1), SF);
|
|
|
|
GenericValue Dest;
|
|
|
|
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
IMPLEMENT_SHIFT(>>, UByte);
|
|
|
|
IMPLEMENT_SHIFT(>>, SByte);
|
|
|
|
IMPLEMENT_SHIFT(>>, UShort);
|
|
|
|
IMPLEMENT_SHIFT(>>, Short);
|
|
|
|
IMPLEMENT_SHIFT(>>, UInt);
|
|
|
|
IMPLEMENT_SHIFT(>>, Int);
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_SHIFT(>>, ULong);
|
|
|
|
IMPLEMENT_SHIFT(>>, Long);
|
2001-08-27 13:16:50 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled type for Shr instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
SetValue(I, Dest, SF);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define IMPLEMENT_CAST(DTY, DCTY, STY) \
|
2001-11-08 03:46:27 +08:00
|
|
|
case Type::STY##TyID: Dest.DTY##Val = DCTY Src.STY##Val; break;
|
2001-08-27 13:16:50 +08:00
|
|
|
|
|
|
|
#define IMPLEMENT_CAST_CASE_START(DESTTY, DESTCTY) \
|
|
|
|
case Type::DESTTY##TyID: \
|
|
|
|
switch (SrcTy->getPrimitiveID()) { \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, UByte); \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, SByte); \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, UShort); \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, Short); \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, UInt); \
|
2001-10-16 03:18:26 +08:00
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, Int); \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, ULong); \
|
2001-10-27 16:28:11 +08:00
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, Long); \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, Pointer);
|
2001-08-27 13:16:50 +08:00
|
|
|
|
|
|
|
#define IMPLEMENT_CAST_CASE_FP_IMP(DESTTY, DESTCTY) \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, Float); \
|
|
|
|
IMPLEMENT_CAST(DESTTY, DESTCTY, Double)
|
|
|
|
|
|
|
|
#define IMPLEMENT_CAST_CASE_END() \
|
|
|
|
default: cout << "Unhandled cast: " << SrcTy << " to " << Ty << endl; \
|
|
|
|
break; \
|
|
|
|
} \
|
|
|
|
break
|
|
|
|
|
|
|
|
#define IMPLEMENT_CAST_CASE(DESTTY, DESTCTY) \
|
|
|
|
IMPLEMENT_CAST_CASE_START(DESTTY, DESTCTY); \
|
|
|
|
IMPLEMENT_CAST_CASE_FP_IMP(DESTTY, DESTCTY); \
|
|
|
|
IMPLEMENT_CAST_CASE_END()
|
|
|
|
|
|
|
|
static void executeCastInst(CastInst *I, ExecutionContext &SF) {
|
|
|
|
const Type *Ty = I->getType();
|
|
|
|
const Type *SrcTy = I->getOperand(0)->getType();
|
|
|
|
GenericValue Src = getOperandValue(I->getOperand(0), SF);
|
|
|
|
GenericValue Dest;
|
|
|
|
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
2001-11-08 03:46:27 +08:00
|
|
|
IMPLEMENT_CAST_CASE(UByte , (unsigned char));
|
|
|
|
IMPLEMENT_CAST_CASE(SByte , ( signed char));
|
|
|
|
IMPLEMENT_CAST_CASE(UShort , (unsigned short));
|
|
|
|
IMPLEMENT_CAST_CASE(Short , ( signed char));
|
|
|
|
IMPLEMENT_CAST_CASE(UInt , (unsigned int ));
|
|
|
|
IMPLEMENT_CAST_CASE(Int , ( signed int ));
|
|
|
|
IMPLEMENT_CAST_CASE(ULong , (uint64_t));
|
|
|
|
IMPLEMENT_CAST_CASE(Long , ( int64_t));
|
|
|
|
IMPLEMENT_CAST_CASE(Pointer, (PointerTy)(uint32_t));
|
|
|
|
IMPLEMENT_CAST_CASE(Float , (float));
|
|
|
|
IMPLEMENT_CAST_CASE(Double , (double));
|
2001-08-27 13:16:50 +08:00
|
|
|
default:
|
|
|
|
cout << "Unhandled dest type for cast instruction: " << Ty << endl;
|
|
|
|
}
|
|
|
|
SetValue(I, Dest, SF);
|
|
|
|
}
|
2001-08-24 01:05:04 +08:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Dispatch and Execution Code
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
|
|
|
MethodInfo::MethodInfo(Method *M) : Annotation(MethodInfoAID) {
|
|
|
|
// Assign slot numbers to the method arguments...
|
|
|
|
const Method::ArgumentListType &ArgList = M->getArgumentList();
|
|
|
|
for (Method::ArgumentListType::const_iterator AI = ArgList.begin(),
|
|
|
|
AE = ArgList.end(); AI != AE; ++AI) {
|
|
|
|
MethodArgument *MA = *AI;
|
|
|
|
MA->addAnnotation(new SlotNumber(getValueSlot(MA)));
|
|
|
|
}
|
|
|
|
|
|
|
|
// Iterate over all of the instructions...
|
|
|
|
unsigned InstNum = 0;
|
|
|
|
for (Method::inst_iterator MI = M->inst_begin(), ME = M->inst_end();
|
|
|
|
MI != ME; ++MI) {
|
|
|
|
Instruction *I = *MI; // For each instruction...
|
|
|
|
I->addAnnotation(new InstNumber(++InstNum, getValueSlot(I))); // Add Annote
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
unsigned MethodInfo::getValueSlot(const Value *V) {
|
|
|
|
unsigned Plane = V->getType()->getUniqueID();
|
|
|
|
if (Plane >= NumPlaneElements.size())
|
|
|
|
NumPlaneElements.resize(Plane+1, 0);
|
|
|
|
return NumPlaneElements[Plane]++;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// callMethod - Execute the specified method...
|
|
|
|
//
|
2001-09-10 12:49:44 +08:00
|
|
|
void Interpreter::callMethod(Method *M, const vector<GenericValue> &ArgVals) {
|
|
|
|
assert((ECStack.empty() || ECStack.back().Caller == 0 ||
|
|
|
|
ECStack.back().Caller->getNumOperands()-1 == ArgVals.size()) &&
|
|
|
|
"Incorrect number of arguments passed into function call!");
|
2001-08-24 01:05:04 +08:00
|
|
|
if (M->isExternal()) {
|
2001-10-31 04:27:31 +08:00
|
|
|
GenericValue Result = callExternalMethod(M, ArgVals);
|
|
|
|
const Type *RetTy = M->getReturnType();
|
|
|
|
|
|
|
|
// Copy the result back into the result variable if we are not returning
|
|
|
|
// void.
|
|
|
|
if (RetTy != Type::VoidTy) {
|
|
|
|
if (!ECStack.empty() && ECStack.back().Caller) {
|
|
|
|
ExecutionContext &SF = ECStack.back();
|
|
|
|
CallInst *Caller = SF.Caller;
|
|
|
|
SetValue(SF.Caller, Result, SF);
|
|
|
|
|
|
|
|
SF.Caller = 0; // We returned from the call...
|
|
|
|
} else {
|
|
|
|
// print it.
|
2001-11-07 12:23:00 +08:00
|
|
|
CW << "Method " << M->getType() << " \"" << M->getName()
|
|
|
|
<< "\" returned ";
|
2001-10-31 04:27:31 +08:00
|
|
|
print(RetTy, Result);
|
|
|
|
cout << endl;
|
|
|
|
|
|
|
|
if (RetTy->isIntegral())
|
|
|
|
ExitCode = Result.SByteVal; // Capture the exit code of the program
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Process the method, assigning instruction numbers to the instructions in
|
|
|
|
// the method. Also calculate the number of values for each type slot active.
|
|
|
|
//
|
|
|
|
MethodInfo *MethInfo = (MethodInfo*)M->getOrCreateAnnotation(MethodInfoAID);
|
|
|
|
ECStack.push_back(ExecutionContext()); // Make a new stack frame...
|
2001-08-27 13:16:50 +08:00
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
ExecutionContext &StackFrame = ECStack.back(); // Fill it in...
|
|
|
|
StackFrame.CurMethod = M;
|
|
|
|
StackFrame.CurBB = M->front();
|
|
|
|
StackFrame.CurInst = StackFrame.CurBB->begin();
|
|
|
|
StackFrame.MethInfo = MethInfo;
|
|
|
|
|
|
|
|
// Initialize the values to nothing...
|
|
|
|
StackFrame.Values.resize(MethInfo->NumPlaneElements.size());
|
2001-11-08 03:46:27 +08:00
|
|
|
for (unsigned i = 0; i < MethInfo->NumPlaneElements.size(); ++i) {
|
2001-08-24 01:05:04 +08:00
|
|
|
StackFrame.Values[i].resize(MethInfo->NumPlaneElements[i]);
|
|
|
|
|
2001-11-08 03:46:27 +08:00
|
|
|
// Taint the initial values of stuff
|
|
|
|
memset(&StackFrame.Values[i][0], 42,
|
|
|
|
MethInfo->NumPlaneElements[i]*sizeof(GenericValue));
|
|
|
|
}
|
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
StackFrame.PrevBB = 0; // No previous BB for PHI nodes...
|
|
|
|
|
2001-09-10 12:49:44 +08:00
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
// Run through the method arguments and initialize their values...
|
2001-10-19 05:55:32 +08:00
|
|
|
assert(ArgVals.size() == M->getArgumentList().size() &&
|
|
|
|
"Invalid number of values passed to method invocation!");
|
2001-09-10 12:49:44 +08:00
|
|
|
unsigned i = 0;
|
|
|
|
for (Method::ArgumentListType::iterator MI = M->getArgumentList().begin(),
|
|
|
|
ME = M->getArgumentList().end(); MI != ME; ++MI, ++i) {
|
|
|
|
SetValue(*MI, ArgVals[i], StackFrame);
|
2001-08-24 01:05:04 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// executeInstruction - Interpret a single instruction, increment the "PC", and
|
|
|
|
// return true if the next instruction is a breakpoint...
|
|
|
|
//
|
|
|
|
bool Interpreter::executeInstruction() {
|
|
|
|
assert(!ECStack.empty() && "No program running, cannot execute inst!");
|
|
|
|
|
|
|
|
ExecutionContext &SF = ECStack.back(); // Current stack frame
|
|
|
|
Instruction *I = *SF.CurInst++; // Increment before execute
|
|
|
|
|
2001-10-27 16:43:52 +08:00
|
|
|
if (Trace)
|
2001-11-07 12:23:00 +08:00
|
|
|
CW << "Run:" << I;
|
|
|
|
|
|
|
|
// Set a sigsetjmp buffer so that we can recover if an error happens during
|
|
|
|
// instruction execution...
|
|
|
|
//
|
|
|
|
if (int SigNo = sigsetjmp(SignalRecoverBuffer, 1)) {
|
|
|
|
--SF.CurInst; // Back up to erroring instruction
|
2001-11-27 02:18:18 +08:00
|
|
|
if (SigNo != SIGINT && SigNo != -1) {
|
2001-11-08 03:46:27 +08:00
|
|
|
cout << "EXCEPTION OCCURRED [" << _sys_siglistp[SigNo] << "]:\n";
|
2001-11-07 13:31:27 +08:00
|
|
|
printStackTrace();
|
2001-11-27 02:18:18 +08:00
|
|
|
} else if (SigNo == SIGINT) {
|
2001-11-07 13:31:27 +08:00
|
|
|
cout << "CTRL-C Detected, execution halted.\n";
|
|
|
|
}
|
|
|
|
InInstruction = false;
|
2001-11-07 12:23:00 +08:00
|
|
|
return true;
|
|
|
|
}
|
2001-10-27 16:43:52 +08:00
|
|
|
|
2001-11-07 13:31:27 +08:00
|
|
|
InInstruction = true;
|
2001-08-24 01:05:04 +08:00
|
|
|
if (I->isBinaryOp()) {
|
2001-10-31 04:27:31 +08:00
|
|
|
executeBinaryInst(cast<BinaryOperator>(I), SF);
|
2001-08-24 01:05:04 +08:00
|
|
|
} else {
|
|
|
|
switch (I->getOpcode()) {
|
2001-08-27 13:16:50 +08:00
|
|
|
// Terminators
|
2001-10-31 04:27:31 +08:00
|
|
|
case Instruction::Ret: executeRetInst (cast<ReturnInst>(I), SF); break;
|
|
|
|
case Instruction::Br: executeBrInst (cast<BranchInst>(I), SF); break;
|
2001-08-27 13:16:50 +08:00
|
|
|
// Memory Instructions
|
|
|
|
case Instruction::Alloca:
|
2001-10-31 04:27:31 +08:00
|
|
|
case Instruction::Malloc: executeAllocInst((AllocationInst*)I, SF); break;
|
|
|
|
case Instruction::Free: executeFreeInst (cast<FreeInst> (I), SF); break;
|
|
|
|
case Instruction::Load: executeLoadInst (cast<LoadInst> (I), SF); break;
|
|
|
|
case Instruction::Store: executeStoreInst(cast<StoreInst>(I), SF); break;
|
2001-10-30 03:32:19 +08:00
|
|
|
case Instruction::GetElementPtr:
|
|
|
|
executeGEPInst(cast<GetElementPtrInst>(I), SF); break;
|
2001-08-27 13:16:50 +08:00
|
|
|
|
|
|
|
// Miscellaneous Instructions
|
2001-10-31 04:27:31 +08:00
|
|
|
case Instruction::Call: executeCallInst (cast<CallInst> (I), SF); break;
|
|
|
|
case Instruction::PHINode: executePHINode (cast<PHINode> (I), SF); break;
|
|
|
|
case Instruction::Shl: executeShlInst (cast<ShiftInst>(I), SF); break;
|
|
|
|
case Instruction::Shr: executeShrInst (cast<ShiftInst>(I), SF); break;
|
|
|
|
case Instruction::Cast: executeCastInst (cast<CastInst> (I), SF); break;
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "Don't know how to execute this instruction!\n-->" << I;
|
|
|
|
}
|
|
|
|
}
|
2001-11-07 13:31:27 +08:00
|
|
|
InInstruction = false;
|
2001-08-24 01:05:04 +08:00
|
|
|
|
|
|
|
// Reset the current frame location to the top of stack
|
|
|
|
CurFrame = ECStack.size()-1;
|
|
|
|
|
|
|
|
if (CurFrame == -1) return false; // No breakpoint if no code
|
|
|
|
|
|
|
|
// Return true if there is a breakpoint annotation on the instruction...
|
|
|
|
return (*ECStack[CurFrame].CurInst)->getAnnotation(BreakpointAID) != 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void Interpreter::stepInstruction() { // Do the 'step' command
|
|
|
|
if (ECStack.empty()) {
|
|
|
|
cout << "Error: no program running, cannot step!\n";
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Run an instruction...
|
|
|
|
executeInstruction();
|
|
|
|
|
|
|
|
// Print the next instruction to execute...
|
|
|
|
printCurrentInstruction();
|
|
|
|
}
|
|
|
|
|
|
|
|
// --- UI Stuff...
|
|
|
|
void Interpreter::nextInstruction() { // Do the 'next' command
|
|
|
|
if (ECStack.empty()) {
|
|
|
|
cout << "Error: no program running, cannot 'next'!\n";
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// If this is a call instruction, step over the call instruction...
|
|
|
|
// TODO: ICALL, CALL WITH, ...
|
|
|
|
if ((*ECStack.back().CurInst)->getOpcode() == Instruction::Call) {
|
2001-10-29 22:08:33 +08:00
|
|
|
unsigned StackSize = ECStack.size();
|
2001-08-24 01:05:04 +08:00
|
|
|
// Step into the function...
|
|
|
|
if (executeInstruction()) {
|
|
|
|
// Hit a breakpoint, print current instruction, then return to user...
|
|
|
|
cout << "Breakpoint hit!\n";
|
|
|
|
printCurrentInstruction();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2001-10-29 22:08:33 +08:00
|
|
|
// If we we able to step into the function, finish it now. We might not be
|
|
|
|
// able the step into a function, if it's external for example.
|
|
|
|
if (ECStack.size() != StackSize)
|
|
|
|
finish(); // Finish executing the function...
|
2001-10-30 00:05:19 +08:00
|
|
|
else
|
|
|
|
printCurrentInstruction();
|
2001-10-29 22:08:33 +08:00
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
} else {
|
|
|
|
// Normal instruction, just step...
|
|
|
|
stepInstruction();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void Interpreter::run() {
|
|
|
|
if (ECStack.empty()) {
|
|
|
|
cout << "Error: no program running, cannot run!\n";
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool HitBreakpoint = false;
|
|
|
|
while (!ECStack.empty() && !HitBreakpoint) {
|
|
|
|
// Run an instruction...
|
|
|
|
HitBreakpoint = executeInstruction();
|
|
|
|
}
|
|
|
|
|
|
|
|
if (HitBreakpoint) {
|
|
|
|
cout << "Breakpoint hit!\n";
|
|
|
|
}
|
|
|
|
// Print the next instruction to execute...
|
|
|
|
printCurrentInstruction();
|
|
|
|
}
|
|
|
|
|
|
|
|
void Interpreter::finish() {
|
|
|
|
if (ECStack.empty()) {
|
|
|
|
cout << "Error: no program running, cannot run!\n";
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
unsigned StackSize = ECStack.size();
|
|
|
|
bool HitBreakpoint = false;
|
|
|
|
while (ECStack.size() >= StackSize && !HitBreakpoint) {
|
|
|
|
// Run an instruction...
|
|
|
|
HitBreakpoint = executeInstruction();
|
|
|
|
}
|
|
|
|
|
|
|
|
if (HitBreakpoint) {
|
|
|
|
cout << "Breakpoint hit!\n";
|
|
|
|
}
|
|
|
|
|
|
|
|
// Print the next instruction to execute...
|
|
|
|
printCurrentInstruction();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// printCurrentInstruction - Print out the instruction that the virtual PC is
|
|
|
|
// at, or fail silently if no program is running.
|
|
|
|
//
|
|
|
|
void Interpreter::printCurrentInstruction() {
|
|
|
|
if (!ECStack.empty()) {
|
2001-10-30 04:44:34 +08:00
|
|
|
if (ECStack.back().CurBB->begin() == ECStack.back().CurInst) // print label
|
|
|
|
WriteAsOperand(cout, ECStack.back().CurBB) << ":\n";
|
|
|
|
|
2001-08-24 01:05:04 +08:00
|
|
|
Instruction *I = *ECStack.back().CurInst;
|
|
|
|
InstNumber *IN = (InstNumber*)I->getAnnotation(SlotNumberAID);
|
|
|
|
assert(IN && "Instruction has no numbering annotation!");
|
|
|
|
cout << "#" << IN->InstNum << I;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void Interpreter::printValue(const Type *Ty, GenericValue V) {
|
|
|
|
switch (Ty->getPrimitiveID()) {
|
|
|
|
case Type::BoolTyID: cout << (V.BoolVal?"true":"false"); break;
|
|
|
|
case Type::SByteTyID: cout << V.SByteVal; break;
|
|
|
|
case Type::UByteTyID: cout << V.UByteVal; break;
|
|
|
|
case Type::ShortTyID: cout << V.ShortVal; break;
|
|
|
|
case Type::UShortTyID: cout << V.UShortVal; break;
|
|
|
|
case Type::IntTyID: cout << V.IntVal; break;
|
|
|
|
case Type::UIntTyID: cout << V.UIntVal; break;
|
2001-10-16 03:18:26 +08:00
|
|
|
case Type::LongTyID: cout << V.LongVal; break;
|
|
|
|
case Type::ULongTyID: cout << V.ULongVal; break;
|
2001-08-24 01:05:04 +08:00
|
|
|
case Type::FloatTyID: cout << V.FloatVal; break;
|
|
|
|
case Type::DoubleTyID: cout << V.DoubleVal; break;
|
2001-11-08 03:46:27 +08:00
|
|
|
case Type::PointerTyID:cout << (void*)V.PointerVal; break;
|
2001-08-24 01:05:04 +08:00
|
|
|
default:
|
|
|
|
cout << "- Don't know how to print value of this type!";
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-10-15 13:51:48 +08:00
|
|
|
void Interpreter::print(const Type *Ty, GenericValue V) {
|
2001-11-07 12:23:00 +08:00
|
|
|
CW << Ty << " ";
|
2001-10-15 13:51:48 +08:00
|
|
|
printValue(Ty, V);
|
|
|
|
}
|
|
|
|
|
|
|
|
void Interpreter::print(const string &Name) {
|
2001-08-24 01:05:04 +08:00
|
|
|
Value *PickedVal = ChooseOneOption(Name, LookupMatchingNames(Name));
|
|
|
|
if (!PickedVal) return;
|
|
|
|
|
2001-10-02 00:18:37 +08:00
|
|
|
if (const Method *M = dyn_cast<const Method>(PickedVal)) {
|
2001-11-07 12:23:00 +08:00
|
|
|
CW << M; // Print the method
|
2001-11-08 03:46:27 +08:00
|
|
|
} else if (const Type *Ty = dyn_cast<const Type>(PickedVal)) {
|
|
|
|
CW << "type %" << Name << " = " << Ty->getDescription() << endl;
|
|
|
|
} else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(PickedVal)) {
|
|
|
|
CW << BB; // Print the basic block
|
2001-08-24 01:05:04 +08:00
|
|
|
} else { // Otherwise there should be an annotation for the slot#
|
2001-10-15 13:51:48 +08:00
|
|
|
print(PickedVal->getType(),
|
|
|
|
getOperandValue(PickedVal, ECStack[CurFrame]));
|
2001-08-24 01:05:04 +08:00
|
|
|
cout << endl;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-08-27 13:16:50 +08:00
|
|
|
void Interpreter::infoValue(const string &Name) {
|
|
|
|
Value *PickedVal = ChooseOneOption(Name, LookupMatchingNames(Name));
|
|
|
|
if (!PickedVal) return;
|
|
|
|
|
|
|
|
cout << "Value: ";
|
2001-10-15 13:51:48 +08:00
|
|
|
print(PickedVal->getType(),
|
|
|
|
getOperandValue(PickedVal, ECStack[CurFrame]));
|
2001-08-27 13:16:50 +08:00
|
|
|
cout << endl;
|
|
|
|
printOperandInfo(PickedVal, ECStack[CurFrame]);
|
|
|
|
}
|
|
|
|
|
2001-11-07 13:31:27 +08:00
|
|
|
// printStackFrame - Print information about the specified stack frame, or -1
|
|
|
|
// for the default one.
|
|
|
|
//
|
|
|
|
void Interpreter::printStackFrame(int FrameNo = -1) {
|
|
|
|
if (FrameNo == -1) FrameNo = CurFrame;
|
|
|
|
Method *Meth = ECStack[FrameNo].CurMethod;
|
2001-11-08 03:46:27 +08:00
|
|
|
const Type *RetTy = Meth->getReturnType();
|
|
|
|
|
|
|
|
CW << ((FrameNo == CurFrame) ? '>' : '-') << "#" << FrameNo << ". "
|
|
|
|
<< (Value*)RetTy << " \"" << Meth->getName() << "\"(";
|
2001-11-07 13:31:27 +08:00
|
|
|
|
|
|
|
Method::ArgumentListType &Args = Meth->getArgumentList();
|
|
|
|
for (unsigned i = 0; i < Args.size(); ++i) {
|
|
|
|
if (i != 0) cout << ", ";
|
|
|
|
CW << (Value*)Args[i] << "=";
|
|
|
|
|
|
|
|
printValue(Args[i]->getType(), getOperandValue(Args[i], ECStack[FrameNo]));
|
2001-08-24 01:05:04 +08:00
|
|
|
}
|
2001-11-07 13:31:27 +08:00
|
|
|
|
|
|
|
cout << ")" << endl;
|
|
|
|
CW << *(ECStack[FrameNo].CurInst-(FrameNo != int(ECStack.size()-1)));
|
2001-08-24 01:05:04 +08:00
|
|
|
}
|
2001-11-07 13:31:27 +08:00
|
|
|
|