#include "Interpreter.h"
#include "ExecutionAnnotations.h"
+#include "llvm/iPHINode.h"
#include "llvm/iOther.h"
#include "llvm/iTerminators.h"
#include "llvm/iMemory.h"
#include "llvm/Type.h"
-#include "llvm/ConstPoolVals.h"
+#include "llvm/ConstantVals.h"
#include "llvm/Assembly/Writer.h"
-#include "llvm/Support/DataTypes.h"
#include "llvm/Target/TargetData.h"
#include "llvm/GlobalVariable.h"
+#include "Support/CommandLine.h"
#include <math.h> // For fmod
#include <signal.h>
#include <setjmp.h>
+#include <iostream>
+using std::vector;
+using std::cout;
+using std::cerr;
+
+cl::Flag QuietMode ("quiet" , "Do not emit any non-program output");
+cl::Alias QuietModeA("q" , "Alias for -quiet", cl::NoFlags, QuietMode);
+cl::Flag ArrayChecksEnabled("array-checks", "Enable array bound checks");
+cl::Flag AbortOnExceptions("abort-on-exception", "Halt execution on a machine exception");
// Create a TargetData structure to handle memory addressing and size/alignment
// computations
//
static TargetData TD("lli Interpreter");
-CachedWriter CW; // Object to accellerate printing of LLVM
+CachedWriter CW; // Object to accelerate printing of LLVM
+
+#ifdef PROFILE_STRUCTURE_FIELDS
+static cl::Flag ProfileStructureFields("profilestructfields",
+ "Profile Structure Field Accesses");
+#include <map>
+static std::map<const StructType *, vector<unsigned> > FieldAccessCounts;
+#endif
sigjmp_buf SignalRecoverBuffer;
+static bool InInstruction = false;
extern "C" {
static void SigHandler(int Signal) {
- siglongjmp(SignalRecoverBuffer, Signal);
+ if (InInstruction)
+ siglongjmp(SignalRecoverBuffer, Signal);
}
}
sigemptyset(&Action.sa_mask);
sigaction(SIGSEGV, &Action, 0);
sigaction(SIGBUS, &Action, 0);
- //sigaction(SIGFP, &Action, 0);
+ sigaction(SIGINT, &Action, 0);
+ sigaction(SIGFPE, &Action, 0);
}
case Type::TY##TyID: Result.TY##Val = cast<CLASS>(CPV)->getValue(); break
static GenericValue getOperandValue(Value *V, ExecutionContext &SF) {
- if (ConstPoolVal *CPV = dyn_cast<ConstPoolVal>(V)) {
+ if (Constant *CPV = dyn_cast<Constant>(V)) {
GenericValue Result;
switch (CPV->getType()->getPrimitiveID()) {
- GET_CONST_VAL(Bool , ConstPoolBool);
- GET_CONST_VAL(UByte , ConstPoolUInt);
- GET_CONST_VAL(SByte , ConstPoolSInt);
- GET_CONST_VAL(UShort , ConstPoolUInt);
- GET_CONST_VAL(Short , ConstPoolSInt);
- GET_CONST_VAL(UInt , ConstPoolUInt);
- GET_CONST_VAL(Int , ConstPoolSInt);
- GET_CONST_VAL(ULong , ConstPoolUInt);
- GET_CONST_VAL(Long , ConstPoolSInt);
- GET_CONST_VAL(Float , ConstPoolFP);
- GET_CONST_VAL(Double , ConstPoolFP);
+ GET_CONST_VAL(Bool , ConstantBool);
+ GET_CONST_VAL(UByte , ConstantUInt);
+ GET_CONST_VAL(SByte , ConstantSInt);
+ GET_CONST_VAL(UShort , ConstantUInt);
+ GET_CONST_VAL(Short , ConstantSInt);
+ GET_CONST_VAL(UInt , ConstantUInt);
+ GET_CONST_VAL(Int , ConstantSInt);
+ GET_CONST_VAL(ULong , ConstantUInt);
+ GET_CONST_VAL(Long , ConstantSInt);
+ GET_CONST_VAL(Float , ConstantFP);
+ GET_CONST_VAL(Double , ConstantFP);
case Type::PointerTyID:
- if (isa<ConstPoolPointerNull>(CPV)) {
- Result.ULongVal = 0;
- } else if (ConstPoolPointerRef *CPR =dyn_cast<ConstPoolPointerRef>(CPV)) {
+ if (isa<ConstantPointerNull>(CPV)) {
+ Result.PointerVal = 0;
+ } else if (isa<ConstantPointerRef>(CPV)) {
assert(0 && "Not implemented!");
} else {
assert(0 && "Unknown constant pointer type!");
}
break;
default:
- cout << "ERROR: Constant unimp for type: " << CPV->getType() << endl;
+ cout << "ERROR: Constant unimp for type: " << CPV->getType() << "\n";
}
return Result;
} else if (GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
GlobalAddress *Address =
(GlobalAddress*)GV->getOrCreateAnnotation(GlobalAddressAID);
GenericValue Result;
- Result.ULongVal = (uint64_t)(GenericValue*)Address->Ptr;
+ Result.PointerVal = (PointerTy)(GenericValue*)Address->Ptr;
return Result;
} else {
unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
}
static void printOperandInfo(Value *V, ExecutionContext &SF) {
- if (isa<ConstPoolVal>(V)) {
+ if (isa<Constant>(V)) {
cout << "Constant Pool Value\n";
} else if (isa<GlobalValue>(V)) {
cout << "Global Value\n";
unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
unsigned Slot = getOperandSlot(V);
cout << "Value=" << (void*)V << " TypeID=" << TyP << " Slot=" << Slot
- << " Addr=" << &SF.Values[TyP][Slot] << " SF=" << &SF << endl;
+ << " Addr=" << &SF.Values[TyP][Slot] << " SF=" << &SF
+ << " Contents=0x";
+
+ const unsigned char *Buf = (const unsigned char*)&SF.Values[TyP][Slot];
+ for (unsigned i = 0; i < sizeof(GenericValue); ++i) {
+ unsigned char Cur = Buf[i];
+ cout << ( Cur >= 160? char((Cur>>4)+'A'-10) : char((Cur>>4) + '0'))
+ << ((Cur&15) >= 10? char((Cur&15)+'A'-10) : char((Cur&15) + '0'));
+ }
+ cout << "\n";
}
}
static void SetValue(Value *V, GenericValue Val, ExecutionContext &SF) {
unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
- //cout << "Setting value: " << &SF.Values[TyP][getOperandSlot(V)] << endl;
+ //cout << "Setting value: " << &SF.Values[TyP][getOperandSlot(V)] << "\n";
SF.Values[TyP][getOperandSlot(V)] = Val;
}
initializeSignalHandlers();
}
-// InitializeMemory - Recursive function to apply a ConstPool value into the
+// InitializeMemory - Recursive function to apply a Constant value into the
// specified memory location...
//
-static void InitializeMemory(ConstPoolVal *Init, char *Addr) {
+static void InitializeMemory(Constant *Init, char *Addr) {
#define INITIALIZE_MEMORY(TYID, CLASS, TY) \
case Type::TYID##TyID: { \
TY Tmp = cast<CLASS>(Init)->getValue(); \
} return
switch (Init->getType()->getPrimitiveID()) {
- INITIALIZE_MEMORY(Bool , ConstPoolBool, bool);
- INITIALIZE_MEMORY(UByte , ConstPoolUInt, unsigned char);
- INITIALIZE_MEMORY(SByte , ConstPoolSInt, signed char);
- INITIALIZE_MEMORY(UShort , ConstPoolUInt, unsigned short);
- INITIALIZE_MEMORY(Short , ConstPoolSInt, signed short);
- INITIALIZE_MEMORY(UInt , ConstPoolUInt, unsigned int);
- INITIALIZE_MEMORY(Int , ConstPoolSInt, signed int);
- INITIALIZE_MEMORY(ULong , ConstPoolUInt, uint64_t);
- INITIALIZE_MEMORY(Long , ConstPoolSInt, int64_t);
- INITIALIZE_MEMORY(Float , ConstPoolFP , float);
- INITIALIZE_MEMORY(Double , ConstPoolFP , double);
+ INITIALIZE_MEMORY(Bool , ConstantBool, bool);
+ INITIALIZE_MEMORY(UByte , ConstantUInt, unsigned char);
+ INITIALIZE_MEMORY(SByte , ConstantSInt, signed char);
+ INITIALIZE_MEMORY(UShort , ConstantUInt, unsigned short);
+ INITIALIZE_MEMORY(Short , ConstantSInt, signed short);
+ INITIALIZE_MEMORY(UInt , ConstantUInt, unsigned int);
+ INITIALIZE_MEMORY(Int , ConstantSInt, signed int);
+ INITIALIZE_MEMORY(ULong , ConstantUInt, uint64_t);
+ INITIALIZE_MEMORY(Long , ConstantSInt, int64_t);
+ INITIALIZE_MEMORY(Float , ConstantFP , float);
+ INITIALIZE_MEMORY(Double , ConstantFP , double);
#undef INITIALIZE_MEMORY
case Type::ArrayTyID: {
- ConstPoolArray *CPA = cast<ConstPoolArray>(Init);
+ ConstantArray *CPA = cast<ConstantArray>(Init);
const vector<Use> &Val = CPA->getValues();
unsigned ElementSize =
TD.getTypeSize(cast<ArrayType>(CPA->getType())->getElementType());
for (unsigned i = 0; i < Val.size(); ++i)
- InitializeMemory(cast<ConstPoolVal>(Val[i].get()), Addr+i*ElementSize);
+ InitializeMemory(cast<Constant>(Val[i].get()), Addr+i*ElementSize);
return;
}
case Type::StructTyID: {
- ConstPoolStruct *CPS = cast<ConstPoolStruct>(Init);
+ ConstantStruct *CPS = cast<ConstantStruct>(Init);
const StructLayout *SL=TD.getStructLayout(cast<StructType>(CPS->getType()));
const vector<Use> &Val = CPS->getValues();
for (unsigned i = 0; i < Val.size(); ++i)
- InitializeMemory(cast<ConstPoolVal>(Val[i].get()),
+ InitializeMemory(cast<Constant>(Val[i].get()),
Addr+SL->MemberOffsets[i]);
return;
}
case Type::PointerTyID:
- if (isa<ConstPoolPointerNull>(Init)) {
+ if (isa<ConstantPointerNull>(Init)) {
*(void**)Addr = 0;
- } else if (ConstPoolPointerRef *CPR = dyn_cast<ConstPoolPointerRef>(Init)) {
+ } else if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Init)) {
GlobalAddress *Address =
(GlobalAddress*)CPR->getValue()->getOrCreateAnnotation(GlobalAddressAID);
*(void**)Addr = (GenericValue*)Address->Ptr;
return;
default:
- cout << "Bad Type: " << Init->getType()->getDescription() << endl;
+ CW << "Bad Type: " << Init->getType() << "\n";
assert(0 && "Unknown constant type to initialize memory with!");
}
}
GlobalVariable *GV = cast<GlobalVariable>(GVal);
// First off, we must allocate space for the global variable to point at...
- const Type *Ty = GV->getType()->getValueType(); // Type to be allocated
- unsigned NumElements = 1;
-
- if (isa<ArrayType>(Ty) && cast<ArrayType>(Ty)->isUnsized()) {
- assert(GV->hasInitializer() && "Const val must have an initializer!");
- // Allocating a unsized array type?
- Ty = cast<const ArrayType>(Ty)->getElementType(); // Get the actual type...
-
- // Get the number of elements being allocated by the array...
- NumElements =cast<ConstPoolArray>(GV->getInitializer())->getValues().size();
- }
+ const Type *Ty = GV->getType()->getElementType(); // Type to be allocated
// Allocate enough memory to hold the type...
- void *Addr = malloc(NumElements * TD.getTypeSize(Ty));
+ void *Addr = calloc(1, TD.getTypeSize(Ty));
assert(Addr != 0 && "Null pointer returned by malloc!");
// Initialize the memory if there is an initializer...
IMPLEMENT_BINARY_OPERATOR(+, Double);
IMPLEMENT_BINARY_OPERATOR(+, Pointer);
default:
- cout << "Unhandled type for Add instruction: " << Ty << endl;
+ cout << "Unhandled type for Add instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_BINARY_OPERATOR(-, Double);
IMPLEMENT_BINARY_OPERATOR(-, Pointer);
default:
- cout << "Unhandled type for Sub instruction: " << Ty << endl;
+ cout << "Unhandled type for Sub instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_BINARY_OPERATOR(*, Double);
IMPLEMENT_BINARY_OPERATOR(*, Pointer);
default:
- cout << "Unhandled type for Mul instruction: " << Ty << endl;
+ cout << "Unhandled type for Mul instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_BINARY_OPERATOR(/, Double);
IMPLEMENT_BINARY_OPERATOR(/, Pointer);
default:
- cout << "Unhandled type for Div instruction: " << Ty << endl;
+ cout << "Unhandled type for Div instruction: " << Ty << "\n";
}
return Dest;
}
Dest.DoubleVal = fmod(Src1.DoubleVal, Src2.DoubleVal);
break;
default:
- cout << "Unhandled type for Rem instruction: " << Ty << endl;
+ cout << "Unhandled type for Rem instruction: " << Ty << "\n";
}
return Dest;
}
-static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
+static GenericValue executeAndInst(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 And instruction: " << Ty << "\n";
+ }
+ 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 << "\n";
+ }
+ return Dest;
+}
+
+
+static GenericValue executeXorInst(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(^, Long);
IMPLEMENT_BINARY_OPERATOR(^, Pointer);
default:
- cout << "Unhandled type for Xor instruction: " << Ty << endl;
+ cout << "Unhandled type for Xor instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_SETCC(==, Double);
IMPLEMENT_SETCC(==, Pointer);
default:
- cout << "Unhandled type for SetEQ instruction: " << Ty << endl;
+ cout << "Unhandled type for SetEQ instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_SETCC(!=, Float);
IMPLEMENT_SETCC(!=, Double);
IMPLEMENT_SETCC(!=, Pointer);
+
default:
- cout << "Unhandled type for SetNE instruction: " << Ty << endl;
+ cout << "Unhandled type for SetNE instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_SETCC(<=, Double);
IMPLEMENT_SETCC(<=, Pointer);
default:
- cout << "Unhandled type for SetLE instruction: " << Ty << endl;
+ cout << "Unhandled type for SetLE instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_SETCC(>=, Double);
IMPLEMENT_SETCC(>=, Pointer);
default:
- cout << "Unhandled type for SetGE instruction: " << Ty << endl;
+ cout << "Unhandled type for SetGE instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_SETCC(<, Double);
IMPLEMENT_SETCC(<, Pointer);
default:
- cout << "Unhandled type for SetLT instruction: " << Ty << endl;
+ cout << "Unhandled type for SetLT instruction: " << Ty << "\n";
}
return Dest;
}
IMPLEMENT_SETCC(>, Double);
IMPLEMENT_SETCC(>, Pointer);
default:
- cout << "Unhandled type for SetGT instruction: " << Ty << endl;
+ cout << "Unhandled type for SetGT instruction: " << Ty << "\n";
}
return Dest;
}
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;
+ case Instruction::And: R = executeAndInst (Src1, Src2, Ty, SF); break;
+ case Instruction::Or: R = executeOrInst (Src1, Src2, Ty, SF); break;
case Instruction::Xor: R = executeXorInst (Src1, Src2, Ty, SF); break;
case Instruction::SetEQ: R = executeSetEQInst(Src1, Src2, Ty, SF); break;
case Instruction::SetNE: R = executeSetNEInst(Src1, Src2, Ty, SF); break;
// Terminator Instruction Implementations
//===----------------------------------------------------------------------===//
+static void PerformExitStuff() {
+#ifdef PROFILE_STRUCTURE_FIELDS
+ // Print out structure field accounting information...
+ if (!FieldAccessCounts.empty()) {
+ CW << "Profile Field Access Counts:\n";
+ std::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 << "\n";
+ }
+ CW << "\n";
+
+ 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 << "\n";
+ }
+ CW << "\n";
+
+ FieldAccessCounts.clear();
+ }
+#endif
+}
+
void Interpreter::exitCalled(GenericValue GV) {
- cout << "Program returned ";
- print(Type::IntTy, GV);
- cout << " via 'void exit(int)'\n";
+ if (!QuietMode) {
+ cout << "Program returned ";
+ print(Type::IntTy, GV);
+ cout << " via 'void exit(int)'\n";
+ }
ExitCode = GV.SByteVal;
ECStack.clear();
+ PerformExitStuff();
}
void Interpreter::executeRetInst(ReturnInst *I, ExecutionContext &SF) {
if (ECStack.empty()) { // Finished main. Put result into exit code...
if (RetTy) { // Nonvoid return type?
- CW << "Method " << M->getType() << " \"" << M->getName()
- << "\" returned ";
- print(RetTy, Result);
- cout << endl;
+ if (!QuietMode) {
+ CW << "Method " << M->getType() << " \"" << M->getName()
+ << "\" returned ";
+ print(RetTy, Result);
+ cout << "\n";
+ }
if (RetTy->isIntegral())
ExitCode = Result.SByteVal; // Capture the exit code of the program
} else {
ExitCode = 0;
}
+
+ PerformExitStuff();
return;
}
SetValue(NewSF.Caller, Result, NewSF);
NewSF.Caller = 0; // We returned from the call...
- } else {
+ } else if (!QuietMode) {
// This must be a function that is executing because of a user 'call'
// instruction.
CW << "Method " << M->getType() << " \"" << M->getName()
<< "\" returned ";
print(RetTy, Result);
- cout << endl;
+ cout << "\n";
}
}
//===----------------------------------------------------------------------===//
void Interpreter::executeAllocInst(AllocationInst *I, ExecutionContext &SF) {
- const Type *Ty = I->getType()->getValueType(); // Type to be allocated
+ const Type *Ty = I->getType()->getElementType(); // Type to be allocated
unsigned NumElements = 1;
+ // FIXME: Malloc/Alloca should always have an argument!
if (I->getNumOperands()) { // Allocating a unsized array type?
- assert(isa<ArrayType>(Ty) && cast<const ArrayType>(Ty)->isUnsized() &&
- "Allocation inst with size operand for !unsized array type???");
- Ty = cast<const ArrayType>(Ty)->getElementType(); // Get the actual type...
-
// 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...
+ // FIXME: Don't use CALLOC, use a tainted malloc.
+ void *Memory = calloc(NumElements, TD.getTypeSize(Ty));
+
GenericValue Result;
- Result.ULongVal = (uint64_t)malloc(NumElements * TD.getTypeSize(Ty));
- assert(Result.ULongVal != 0 && "Null pointer returned by malloc!");
+ Result.PointerVal = (PointerTy)Memory;
+ assert(Result.PointerVal != 0 && "Null pointer returned by malloc!");
SetValue(I, Result, SF);
- if (I->getOpcode() == Instruction::Alloca) {
- // TODO: FIXME: alloca should keep track of memory to free it later...
- }
+ if (I->getOpcode() == Instruction::Alloca)
+ ECStack.back().Allocas.add(Memory);
}
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
- free((void*)Value.ULongVal); // Free memory
+ free((void*)Value.PointerVal); // Free memory
}
// function returns the offset that arguments ArgOff+1 -> NumArgs specify for
// the pointer type specified by argument Arg.
//
-static uint64_t getElementOffset(Instruction *I, unsigned ArgOff) {
- assert(isa<PointerType>(I->getOperand(ArgOff)->getType()) &&
+static PointerTy getElementOffset(MemAccessInst *I, ExecutionContext &SF) {
+ assert(isa<PointerType>(I->getPointerOperand()->getType()) &&
"Cannot getElementOffset of a nonpointer type!");
- uint64_t Total = 0;
- const Type *Ty =
- cast<PointerType>(I->getOperand(ArgOff++)->getType())->getValueType();
+ PointerTy Total = 0;
+ const Type *Ty = I->getPointerOperand()->getType();
+ unsigned ArgOff = I->getFirstIndexOperandNumber();
while (ArgOff < I->getNumOperands()) {
- const StructType *STy = 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();
- Total += SLO->MemberOffsets[Index];
- Ty = STy->getElementTypes()[Index];
+ if (const StructType *STy = dyn_cast<StructType>(Ty)) {
+ const StructLayout *SLO = TD.getStructLayout(STy);
+
+ // Indicies must be ubyte constants...
+ const ConstantUInt *CPU = cast<ConstantUInt>(I->getOperand(ArgOff++));
+ assert(CPU->getType() == Type::UByteTy);
+ unsigned Index = CPU->getValue();
+
+#ifdef PROFILE_STRUCTURE_FIELDS
+ if (ProfileStructureFields) {
+ // Do accounting for this field...
+ vector<unsigned> &OfC = FieldAccessCounts[STy];
+ if (OfC.size() == 0) OfC.resize(STy->getElementTypes().size());
+ OfC[Index]++;
+ }
+#endif
+
+ Total += SLO->MemberOffsets[Index];
+ Ty = STy->getElementTypes()[Index];
+ } else if (const SequentialType *ST = cast<SequentialType>(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 (const ArrayType *AT = dyn_cast<ArrayType>(ST))
+ if (Idx >= AT->getNumElements() && ArrayChecksEnabled) {
+ 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, SIGTRAP);
+ }
+
+ Ty = ST->getElementType();
+ unsigned Size = TD.getTypeSize(Ty);
+ Total += Size*Idx;
+ }
}
return Total;
}
static void executeGEPInst(GetElementPtrInst *I, ExecutionContext &SF) {
- uint64_t SrcPtr = getOperandValue(I->getPtrOperand(), SF).ULongVal;
+ GenericValue SRC = getOperandValue(I->getPointerOperand(), SF);
+ PointerTy SrcPtr = SRC.PointerVal;
GenericValue Result;
- Result.ULongVal = SrcPtr + getElementOffset(I, 0);
+ Result.PointerVal = SrcPtr + getElementOffset(I, SF);
SetValue(I, Result, SF);
}
static void executeLoadInst(LoadInst *I, ExecutionContext &SF) {
- uint64_t SrcPtr = getOperandValue(I->getPtrOperand(), SF).ULongVal;
- uint64_t Offset = getElementOffset(I, 0); // Handle any structure indices
+ GenericValue SRC = getOperandValue(I->getPointerOperand(), SF);
+ PointerTy SrcPtr = SRC.PointerVal;
+ PointerTy Offset = getElementOffset(I, SF); // Handle any structure indices
SrcPtr += Offset;
GenericValue *Ptr = (GenericValue*)SrcPtr;
switch (I->getType()->getPrimitiveID()) {
case Type::BoolTyID:
case Type::UByteTyID:
- case Type::SByteTyID: Result.SByteVal = Ptr->SByteVal; break;
+ case Type::SByteTyID: Result.SByteVal = Ptr->SByteVal; break;
case Type::UShortTyID:
- case Type::ShortTyID: Result.ShortVal = Ptr->ShortVal; break;
+ case Type::ShortTyID: Result.ShortVal = Ptr->ShortVal; break;
case Type::UIntTyID:
- case Type::IntTyID: Result.IntVal = Ptr->IntVal; break;
+ case Type::IntTyID: Result.IntVal = Ptr->IntVal; break;
case Type::ULongTyID:
- case Type::LongTyID:
- case Type::PointerTyID: Result.ULongVal = Ptr->PointerVal; break;
- case Type::FloatTyID: Result.FloatVal = Ptr->FloatVal; break;
- case Type::DoubleTyID: Result.DoubleVal = Ptr->DoubleVal; break;
+ 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;
default:
cout << "Cannot load value of type " << I->getType() << "!\n";
}
}
static void executeStoreInst(StoreInst *I, ExecutionContext &SF) {
- uint64_t SrcPtr = getOperandValue(I->getPtrOperand(), SF).ULongVal;
- SrcPtr += getElementOffset(I, 1); // Handle any structure indices
+ GenericValue SRC = getOperandValue(I->getPointerOperand(), SF);
+ PointerTy SrcPtr = SRC.PointerVal;
+ SrcPtr += getElementOffset(I, SF); // Handle any structure indices
GenericValue *Ptr = (GenericValue *)SrcPtr;
GenericValue Val = getOperandValue(I->getOperand(0), SF);
case Type::UIntTyID:
case Type::IntTyID: Ptr->IntVal = Val.IntVal; break;
case Type::ULongTyID:
- case Type::LongTyID:
- case Type::PointerTyID: Ptr->LongVal = Val.LongVal; break;
+ case Type::LongTyID: Ptr->LongVal = Val.LongVal; break;
+ case Type::PointerTyID: Ptr->PointerVal = Val.PointerVal; break;
case Type::FloatTyID: Ptr->FloatVal = Val.FloatVal; break;
case Type::DoubleTyID: Ptr->DoubleVal = Val.DoubleVal; break;
default:
for (unsigned i = 1; i < I->getNumOperands(); ++i)
ArgVals.push_back(getOperandValue(I->getOperand(i), SF));
- callMethod(I->getCalledMethod(), ArgVals);
+ // 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);
}
static void executePHINode(PHINode *I, ExecutionContext &SF) {
IMPLEMENT_SHIFT(<<, ULong);
IMPLEMENT_SHIFT(<<, Long);
default:
- cout << "Unhandled type for Shl instruction: " << Ty << endl;
+ cout << "Unhandled type for Shl instruction: " << Ty << "\n";
}
SetValue(I, Dest, SF);
}
IMPLEMENT_SHIFT(>>, ULong);
IMPLEMENT_SHIFT(>>, Long);
default:
- cout << "Unhandled type for Shr instruction: " << Ty << endl;
+ cout << "Unhandled type for Shr instruction: " << Ty << "\n";
}
SetValue(I, Dest, SF);
}
#define IMPLEMENT_CAST(DTY, DCTY, STY) \
- case Type::STY##TyID: Dest.DTY##Val = (DCTY)Src.STY##Val; break;
+ case Type::STY##TyID: Dest.DTY##Val = DCTY Src.STY##Val; break;
#define IMPLEMENT_CAST_CASE_START(DESTTY, DESTCTY) \
case Type::DESTTY##TyID: \
IMPLEMENT_CAST(DESTTY, DESTCTY, Double)
#define IMPLEMENT_CAST_CASE_END() \
- default: cout << "Unhandled cast: " << SrcTy << " to " << Ty << endl; \
+ default: cout << "Unhandled cast: " << SrcTy << " to " << Ty << "\n"; \
break; \
} \
break
GenericValue Dest;
switch (Ty->getPrimitiveID()) {
- 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, uint64_t);
- IMPLEMENT_CAST_CASE(Float , float);
- IMPLEMENT_CAST_CASE(Double , double);
+ 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));
default:
- cout << "Unhandled dest type for cast instruction: " << Ty << endl;
+ cout << "Unhandled dest type for cast instruction: " << Ty << "\n";
}
SetValue(I, Dest, SF);
}
// 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)));
- }
+ AE = ArgList.end(); AI != AE; ++AI)
+ (*AI)->addAnnotation(new SlotNumber(getValueSlot(*AI)));
// 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
+ for (Method::iterator MI = M->begin(), ME = M->end(); MI != ME; ++MI) {
+ BasicBlock *BB = *MI;
+ for (BasicBlock::iterator II = BB->begin(), IE = BB->end(); II != IE; ++II){
+ Instruction *I = *II; // For each instruction... Add Annote
+ I->addAnnotation(new InstNumber(++InstNum, getValueSlot(I)));
+ }
}
}
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 {
+ } else if (!QuietMode) {
// print it.
CW << "Method " << M->getType() << " \"" << M->getName()
<< "\" returned ";
print(RetTy, Result);
- cout << endl;
+ cout << "\n";
if (RetTy->isIntegral())
ExitCode = Result.SByteVal; // Capture the exit code of the program
// Initialize the values to nothing...
StackFrame.Values.resize(MethInfo->NumPlaneElements.size());
- for (unsigned i = 0; i < MethInfo->NumPlaneElements.size(); ++i)
+ for (unsigned i = 0; i < MethInfo->NumPlaneElements.size(); ++i) {
StackFrame.Values[i].resize(MethInfo->NumPlaneElements[i]);
+ // Taint the initial values of stuff
+ memset(&StackFrame.Values[i][0], 42,
+ MethInfo->NumPlaneElements[i]*sizeof(GenericValue));
+ }
+
StackFrame.PrevBB = 0; // No previous BB for PHI nodes...
//
if (int SigNo = sigsetjmp(SignalRecoverBuffer, 1)) {
--SF.CurInst; // Back up to erroring instruction
- cout << "EXCEPTION OCCURRED [Signal " << _sys_siglistp[SigNo] << "]:\n";
- printStackTrace();
+ if (SigNo != SIGINT) {
+ cout << "EXCEPTION OCCURRED [" << _sys_siglistp[SigNo] << "]:\n";
+ printStackTrace();
+ // If -abort-on-exception was specified, terminate LLI instead of trying
+ // to debug it.
+ //
+ if (AbortOnExceptions) exit(1);
+ } else if (SigNo == SIGINT) {
+ cout << "CTRL-C Detected, execution halted.\n";
+ }
+ InInstruction = false;
return true;
}
+ InInstruction = true;
if (I->isBinaryOp()) {
executeBinaryInst(cast<BinaryOperator>(I), SF);
} else {
cout << "Don't know how to execute this instruction!\n-->" << I;
}
}
+ InInstruction = false;
// Reset the current frame location to the top of stack
CurFrame = ECStack.size()-1;
case Type::UShortTyID: cout << V.UShortVal; break;
case Type::IntTyID: cout << V.IntVal; break;
case Type::UIntTyID: cout << V.UIntVal; break;
- case Type::LongTyID: cout << V.LongVal; break;
- case Type::ULongTyID: cout << V.ULongVal; break;
+ case Type::LongTyID: cout << (long)V.LongVal; break;
+ case Type::ULongTyID: cout << (unsigned long)V.ULongVal; break;
case Type::FloatTyID: cout << V.FloatVal; break;
case Type::DoubleTyID: cout << V.DoubleVal; break;
- case Type::PointerTyID:cout << (void*)V.ULongVal; break;
+ case Type::PointerTyID:cout << (void*)V.PointerVal; break;
default:
cout << "- Don't know how to print value of this type!";
break;
printValue(Ty, V);
}
-void Interpreter::print(const string &Name) {
+void Interpreter::print(const std::string &Name) {
Value *PickedVal = ChooseOneOption(Name, LookupMatchingNames(Name));
if (!PickedVal) return;
if (const Method *M = dyn_cast<const Method>(PickedVal)) {
CW << M; // Print the method
+ } else if (const Type *Ty = dyn_cast<const Type>(PickedVal)) {
+ CW << "type %" << Name << " = " << Ty->getDescription() << "\n";
+ } else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(PickedVal)) {
+ CW << BB; // Print the basic block
} else { // Otherwise there should be an annotation for the slot#
print(PickedVal->getType(),
getOperandValue(PickedVal, ECStack[CurFrame]));
- cout << endl;
+ cout << "\n";
}
-
}
-void Interpreter::infoValue(const string &Name) {
+void Interpreter::infoValue(const std::string &Name) {
Value *PickedVal = ChooseOneOption(Name, LookupMatchingNames(Name));
if (!PickedVal) return;
cout << "Value: ";
print(PickedVal->getType(),
getOperandValue(PickedVal, ECStack[CurFrame]));
- cout << endl;
+ cout << "\n";
printOperandInfo(PickedVal, ECStack[CurFrame]);
}
-void Interpreter::list() {
- if (ECStack.empty())
- cout << "Error: No program executing!\n";
- else
- CW << ECStack[CurFrame].CurMethod; // Just print the method out...
-}
-
-void Interpreter::printStackTrace() {
- if (ECStack.empty()) cout << "No program executing!\n";
+// 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;
+ const Type *RetTy = Meth->getReturnType();
- for (unsigned i = 0; i < ECStack.size(); ++i) {
- cout << (((int)i == CurFrame) ? '>' : '-');
- CW << "#" << i << ". " << ECStack[i].CurMethod->getType() << " \""
- << ECStack[i].CurMethod->getName() << "\"(";
- // TODO: Print Args
- cout << ")" << endl;
- CW << *ECStack[i].CurInst;
+ CW << ((FrameNo == CurFrame) ? '>' : '-') << "#" << FrameNo << ". "
+ << (Value*)RetTy << " \"" << Meth->getName() << "\"(";
+
+ 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]));
}
+
+ cout << ")\n";
+ CW << *(ECStack[FrameNo].CurInst-(FrameNo != int(ECStack.size()-1)));
}
+
projects / oota-llvm.git / blobdiff