//===-- Execution.cpp - Implement code to simulate the program ------------===//
-//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
// This file contains the actual instruction interpreter.
//
//===----------------------------------------------------------------------===//
+#define DEBUG_TYPE "interpreter"
#include "Interpreter.h"
-#include "ExecutionAnnotations.h"
-#include "llvm/Module.h"
-#include "llvm/Instructions.h"
-#include "llvm/DerivedTypes.h"
#include "llvm/Constants.h"
-#include "llvm/Assembly/Writer.h"
-#include "Support/CommandLine.h"
-#include "Support/Statistic.h"
-#include <math.h> // For fmod
-#include <signal.h>
-#include <setjmp.h>
-
-Interpreter *TheEE = 0;
-
-namespace {
- Statistic<> NumDynamicInsts("lli", "Number of dynamic instructions executed");
-
- cl::opt<bool>
- QuietMode("quiet", cl::desc("Do not emit any non-program output"),
- cl::init(true));
-
- cl::alias
- QuietModeA("q", cl::desc("Alias for -quiet"), cl::aliasopt(QuietMode));
-
- cl::opt<bool>
- ArrayChecksEnabled("array-checks", cl::desc("Enable array bound checks"));
-
- cl::opt<bool>
- AbortOnExceptions("abort-on-exception",
- cl::desc("Halt execution on a machine exception"));
-}
-
-// Create a TargetData structure to handle memory addressing and size/alignment
-// computations
-//
-CachedWriter CW; // Object to accelerate printing of LLVM
-
-#ifdef PROFILE_STRUCTURE_FIELDS
-static cl::opt<bool>
-ProfileStructureFields("profilestructfields",
- cl::desc("Profile Structure Field Accesses"));
-#include <map>
-static std::map<const StructType *, std::vector<unsigned> > FieldAccessCounts;
-#endif
-
-sigjmp_buf SignalRecoverBuffer;
-static bool InInstruction = false;
-
-extern "C" {
-static void SigHandler(int Signal) {
- if (InInstruction)
- siglongjmp(SignalRecoverBuffer, Signal);
-}
-}
+#include "llvm/DerivedTypes.h"
+#include "llvm/Instructions.h"
+#include "llvm/CodeGen/IntrinsicLowering.h"
+#include "llvm/Support/GetElementPtrTypeIterator.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/Support/Debug.h"
+#include <cmath>
+using namespace llvm;
-static void initializeSignalHandlers() {
- struct sigaction Action;
- Action.sa_handler = SigHandler;
- Action.sa_flags = SA_SIGINFO;
- sigemptyset(&Action.sa_mask);
- sigaction(SIGSEGV, &Action, 0);
- sigaction(SIGBUS, &Action, 0);
- sigaction(SIGINT, &Action, 0);
- sigaction(SIGFPE, &Action, 0);
-}
+STATISTIC(NumDynamicInsts, "Number of dynamic instructions executed");
+static Interpreter *TheEE = 0;
//===----------------------------------------------------------------------===//
// Value Manipulation code
//===----------------------------------------------------------------------===//
-static unsigned getOperandSlot(Value *V) {
- SlotNumber *SN = (SlotNumber*)V->getAnnotation(SlotNumberAID);
- assert(SN && "Operand does not have a slot number annotation!");
- return SN->SlotNum;
+static GenericValue executeAddInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeSubInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeMulInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeUDivInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeSDivInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeFDivInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeURemInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeSRemInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeFRemInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeAndInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeOrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeCmpInst(unsigned predicate, GenericValue Src1,
+ GenericValue Src2, const Type *Ty);
+static GenericValue executeShlInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeLShrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeAShrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty);
+static GenericValue executeSelectInst(GenericValue Src1, GenericValue Src2,
+ GenericValue Src3);
+
+GenericValue Interpreter::getConstantExprValue (ConstantExpr *CE,
+ ExecutionContext &SF) {
+ switch (CE->getOpcode()) {
+ case Instruction::Trunc:
+ case Instruction::ZExt:
+ case Instruction::SExt:
+ case Instruction::FPTrunc:
+ case Instruction::FPExt:
+ case Instruction::UIToFP:
+ case Instruction::SIToFP:
+ case Instruction::FPToUI:
+ case Instruction::FPToSI:
+ case Instruction::PtrToInt:
+ case Instruction::IntToPtr:
+ case Instruction::BitCast:
+ return executeCastOperation(Instruction::CastOps(CE->getOpcode()),
+ CE->getOperand(0), CE->getType(), SF);
+ case Instruction::GetElementPtr:
+ return executeGEPOperation(CE->getOperand(0), gep_type_begin(CE),
+ gep_type_end(CE), SF);
+ case Instruction::Add:
+ return executeAddInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::Sub:
+ return executeSubInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::Mul:
+ return executeMulInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::SDiv:
+ return executeSDivInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::UDiv:
+ return executeUDivInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::FDiv:
+ return executeFDivInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::URem:
+ return executeURemInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::SRem:
+ return executeSRemInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::FRem:
+ return executeFRemInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::And:
+ return executeAndInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::Or:
+ return executeOrInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::Xor:
+ return executeXorInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::FCmp:
+ case Instruction::ICmp:
+ return executeCmpInst(CE->getPredicate(),
+ getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::Shl:
+ return executeShlInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::LShr:
+ return executeLShrInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::AShr:
+ return executeAShrInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ CE->getOperand(0)->getType());
+ case Instruction::Select:
+ return executeSelectInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ getOperandValue(CE->getOperand(2), SF));
+ default:
+ cerr << "Unhandled ConstantExpr: " << *CE << "\n";
+ abort();
+ return GenericValue();
+ }
}
-// Operations used by constant expr implementations...
-static GenericValue executeCastOperation(Value *Src, const Type *DestTy,
- ExecutionContext &SF);
-static GenericValue executeAddInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty);
-
-
-static GenericValue getOperandValue(Value *V, ExecutionContext &SF) {
+GenericValue Interpreter::getOperandValue(Value *V, ExecutionContext &SF) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
- switch (CE->getOpcode()) {
- case Instruction::Cast:
- return executeCastOperation(CE->getOperand(0), CE->getType(), SF);
- case Instruction::GetElementPtr:
- return TheEE->executeGEPOperation(CE->getOperand(0), CE->op_begin()+1,
- CE->op_end(), SF);
- case Instruction::Add:
- return executeAddInst(getOperandValue(CE->getOperand(0), SF),
- getOperandValue(CE->getOperand(1), SF),
- CE->getType());
- default:
- std::cerr << "Unhandled ConstantExpr: " << CE << "\n";
- abort();
- return GenericValue();
- }
+ return getConstantExprValue(CE, SF);
} else if (Constant *CPV = dyn_cast<Constant>(V)) {
- return TheEE->getConstantValue(CPV);
+ return getConstantValue(CPV);
} else if (GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
- return PTOGV(TheEE->getPointerToGlobal(GV));
+ return PTOGV(getPointerToGlobal(GV));
} else {
- unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
- unsigned OpSlot = getOperandSlot(V);
- assert(TyP < SF.Values.size() &&
- OpSlot < SF.Values[TyP].size() && "Value out of range!");
- return SF.Values[TyP][getOperandSlot(V)];
+ return SF.Values[V];
}
}
-static void printOperandInfo(Value *V, ExecutionContext &SF) {
- if (isa<Constant>(V)) {
- std::cout << "Constant Pool Value\n";
- } else if (isa<GlobalValue>(V)) {
- std::cout << "Global Value\n";
- } else {
- unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
- unsigned Slot = getOperandSlot(V);
- std::cout << "Value=" << (void*)V << " TypeID=" << TyP << " Slot=" << Slot
- << " 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];
- std::cout << ( Cur >= 160?char((Cur>>4)+'A'-10):char((Cur>>4) + '0'))
- << ((Cur&15) >= 10?char((Cur&15)+'A'-10):char((Cur&15) + '0'));
- }
- std::cout << "\n";
- }
-}
-
-
-
static void SetValue(Value *V, GenericValue Val, ExecutionContext &SF) {
- unsigned TyP = V->getType()->getUniqueID(); // TypePlane for value
-
- //std::cout << "Setting value: " << &SF.Values[TyP][getOperandSlot(V)]<< "\n";
- SF.Values[TyP][getOperandSlot(V)] = Val;
+ SF.Values[V] = Val;
}
-
-//===----------------------------------------------------------------------===//
-// Annotation Wrangling code
-//===----------------------------------------------------------------------===//
-
void Interpreter::initializeExecutionEngine() {
TheEE = this;
- AnnotationManager::registerAnnotationFactory(FunctionInfoAID,
- &FunctionInfo::Create);
- initializeSignalHandlers();
}
//===----------------------------------------------------------------------===//
#define IMPLEMENT_BINARY_OPERATOR(OP, TY) \
case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.TY##Val; break
-static GenericValue executeAddInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeAddInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
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);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_BINARY_OPERATOR(+, Int8);
+ IMPLEMENT_BINARY_OPERATOR(+, Int16);
+ IMPLEMENT_BINARY_OPERATOR(+, Int32);
+ IMPLEMENT_BINARY_OPERATOR(+, Int64);
IMPLEMENT_BINARY_OPERATOR(+, Float);
IMPLEMENT_BINARY_OPERATOR(+, Double);
default:
- std::cout << "Unhandled type for Add instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for Add instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSubInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeSubInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
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);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_BINARY_OPERATOR(-, Int8);
+ IMPLEMENT_BINARY_OPERATOR(-, Int16);
+ IMPLEMENT_BINARY_OPERATOR(-, Int32);
+ IMPLEMENT_BINARY_OPERATOR(-, Int64);
IMPLEMENT_BINARY_OPERATOR(-, Float);
IMPLEMENT_BINARY_OPERATOR(-, Double);
default:
- std::cout << "Unhandled type for Sub instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for Sub instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeMulInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeMulInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
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);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_BINARY_OPERATOR(*, Int8);
+ IMPLEMENT_BINARY_OPERATOR(*, Int16);
+ IMPLEMENT_BINARY_OPERATOR(*, Int32);
+ IMPLEMENT_BINARY_OPERATOR(*, Int64);
IMPLEMENT_BINARY_OPERATOR(*, Float);
IMPLEMENT_BINARY_OPERATOR(*, Double);
default:
- std::cout << "Unhandled type for Mul instruction: " << Ty << "\n";
+ cerr << "Unhandled type for Mul instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeDivInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+#define IMPLEMENT_SIGNLESS_BINOP(OP, TY, CAST) \
+ case Type::TY##TyID: Dest.TY##Val = \
+ ((CAST)Src1.TY##Val) OP ((CAST)Src2.TY##Val); break
+
+static GenericValue executeUDivInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
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);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SIGNLESS_BINOP(/, Int8, uint8_t);
+ IMPLEMENT_SIGNLESS_BINOP(/, Int16, uint16_t);
+ IMPLEMENT_SIGNLESS_BINOP(/, Int32, uint32_t);
+ IMPLEMENT_SIGNLESS_BINOP(/, Int64, uint64_t);
+ default:
+ cerr << "Unhandled type for UDiv instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeSDivInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SIGNLESS_BINOP(/, Int8, int8_t);
+ IMPLEMENT_SIGNLESS_BINOP(/, Int16, int16_t);
+ IMPLEMENT_SIGNLESS_BINOP(/, Int32, int32_t);
+ IMPLEMENT_SIGNLESS_BINOP(/, Int64, int64_t);
+ default:
+ cerr << "Unhandled type for SDiv instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFDivInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
IMPLEMENT_BINARY_OPERATOR(/, Float);
IMPLEMENT_BINARY_OPERATOR(/, Double);
default:
- std::cout << "Unhandled type for Div instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for Div instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeRemInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeURemInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
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);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SIGNLESS_BINOP(%, Int8, uint8_t);
+ IMPLEMENT_SIGNLESS_BINOP(%, Int16, uint16_t);
+ IMPLEMENT_SIGNLESS_BINOP(%, Int32, uint32_t);
+ IMPLEMENT_SIGNLESS_BINOP(%, Int64, uint64_t );
+ default:
+ cerr << "Unhandled type for URem instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeSRemInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SIGNLESS_BINOP(%, Int8, int8_t);
+ IMPLEMENT_SIGNLESS_BINOP(%, Int16, int16_t);
+ IMPLEMENT_SIGNLESS_BINOP(%, Int32, int32_t);
+ IMPLEMENT_SIGNLESS_BINOP(%, Int64, int64_t);
+ default:
+ cerr << "Unhandled type for Rem instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFRemInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
case Type::FloatTyID:
Dest.FloatVal = fmod(Src1.FloatVal, Src2.FloatVal);
break;
Dest.DoubleVal = fmod(Src1.DoubleVal, Src2.DoubleVal);
break;
default:
- std::cout << "Unhandled type for Rem instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for Rem instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeAndInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeAndInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
+ switch (Ty->getTypeID()) {
IMPLEMENT_BINARY_OPERATOR(&, Bool);
- 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(&, Int8);
+ IMPLEMENT_BINARY_OPERATOR(&, Int16);
+ IMPLEMENT_BINARY_OPERATOR(&, Int32);
+ IMPLEMENT_BINARY_OPERATOR(&, Int64);
default:
- std::cout << "Unhandled type for And instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for And instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-
-static GenericValue executeOrInst(GenericValue Src1, GenericValue Src2,
+static GenericValue executeOrInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
+ switch (Ty->getTypeID()) {
IMPLEMENT_BINARY_OPERATOR(|, Bool);
- 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(|, Int8);
+ IMPLEMENT_BINARY_OPERATOR(|, Int16);
+ IMPLEMENT_BINARY_OPERATOR(|, Int32);
+ IMPLEMENT_BINARY_OPERATOR(|, Int64);
default:
- std::cout << "Unhandled type for Or instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for Or instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-
-static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
+static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
+ switch (Ty->getTypeID()) {
IMPLEMENT_BINARY_OPERATOR(^, Bool);
- 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(^, Int8);
+ IMPLEMENT_BINARY_OPERATOR(^, Int16);
+ IMPLEMENT_BINARY_OPERATOR(^, Int32);
+ IMPLEMENT_BINARY_OPERATOR(^, Int64);
default:
- std::cout << "Unhandled type for Xor instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for Xor instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-
-#define IMPLEMENT_SETCC(OP, TY) \
- case Type::TY##TyID: Dest.BoolVal = Src1.TY##Val OP Src2.TY##Val; break
+#define IMPLEMENT_ICMP(OP, TY, CAST) \
+ case Type::TY##TyID: Dest.BoolVal = \
+ ((CAST)Src1.TY##Val) OP ((CAST)Src2.TY##Val); break
// Handle pointers specially because they must be compared with only as much
// width as the host has. We _do not_ want to be comparing 64 bit values when
// running on a 32-bit target, otherwise the upper 32 bits might mess up
// comparisons if they contain garbage.
-#define IMPLEMENT_POINTERSETCC(OP) \
+#define IMPLEMENT_POINTERCMP(OP) \
case Type::PointerTyID: \
Dest.BoolVal = (void*)(intptr_t)Src1.PointerVal OP \
(void*)(intptr_t)Src2.PointerVal; break
-static GenericValue executeSetEQInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_EQ(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(==, Int8, uint8_t);
+ IMPLEMENT_ICMP(==, Int16, uint16_t);
+ IMPLEMENT_ICMP(==, Int32, uint32_t);
+ IMPLEMENT_ICMP(==, Int64, uint64_t);
+ IMPLEMENT_POINTERCMP(==);
+ default:
+ cerr << "Unhandled type for ICMP_EQ predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeICMP_NE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(!=, Int8, uint8_t);
+ IMPLEMENT_ICMP(!=, Int16, uint16_t);
+ IMPLEMENT_ICMP(!=, Int32, uint32_t);
+ IMPLEMENT_ICMP(!=, Int64, uint64_t);
+ IMPLEMENT_POINTERCMP(!=);
+ default:
+ cerr << "Unhandled type for ICMP_NE predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeICMP_ULT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
- IMPLEMENT_SETCC(==, UByte);
- IMPLEMENT_SETCC(==, SByte);
- IMPLEMENT_SETCC(==, UShort);
- IMPLEMENT_SETCC(==, Short);
- IMPLEMENT_SETCC(==, UInt);
- IMPLEMENT_SETCC(==, Int);
- IMPLEMENT_SETCC(==, ULong);
- IMPLEMENT_SETCC(==, Long);
- IMPLEMENT_SETCC(==, Float);
- IMPLEMENT_SETCC(==, Double);
- IMPLEMENT_POINTERSETCC(==);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(<, Int8, uint8_t);
+ IMPLEMENT_ICMP(<, Int16, uint16_t);
+ IMPLEMENT_ICMP(<, Int32, uint32_t);
+ IMPLEMENT_ICMP(<, Int64, uint64_t);
+ IMPLEMENT_POINTERCMP(<);
default:
- std::cout << "Unhandled type for SetEQ instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for ICMP_ULT predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetNEInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_SLT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
- IMPLEMENT_SETCC(!=, UByte);
- IMPLEMENT_SETCC(!=, SByte);
- IMPLEMENT_SETCC(!=, UShort);
- IMPLEMENT_SETCC(!=, Short);
- IMPLEMENT_SETCC(!=, UInt);
- IMPLEMENT_SETCC(!=, Int);
- IMPLEMENT_SETCC(!=, ULong);
- IMPLEMENT_SETCC(!=, Long);
- IMPLEMENT_SETCC(!=, Float);
- IMPLEMENT_SETCC(!=, Double);
- IMPLEMENT_POINTERSETCC(!=);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(<, Int8, int8_t);
+ IMPLEMENT_ICMP(<, Int16, int16_t);
+ IMPLEMENT_ICMP(<, Int32, int32_t);
+ IMPLEMENT_ICMP(<, Int64, int64_t);
+ IMPLEMENT_POINTERCMP(<);
+ default:
+ cerr << "Unhandled type for ICMP_SLT predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeICMP_UGT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(>, Int8, uint8_t);
+ IMPLEMENT_ICMP(>, Int16, uint16_t);
+ IMPLEMENT_ICMP(>, Int32, uint32_t);
+ IMPLEMENT_ICMP(>, Int64, uint64_t);
+ IMPLEMENT_POINTERCMP(>);
+ default:
+ cerr << "Unhandled type for ICMP_UGT predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeICMP_SGT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(>, Int8, int8_t);
+ IMPLEMENT_ICMP(>, Int16, int16_t);
+ IMPLEMENT_ICMP(>, Int32, int32_t);
+ IMPLEMENT_ICMP(>, Int64, int64_t);
+ IMPLEMENT_POINTERCMP(>);
+ default:
+ cerr << "Unhandled type for ICMP_SGT predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeICMP_ULE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(<=, Int8, uint8_t);
+ IMPLEMENT_ICMP(<=, Int16, uint16_t);
+ IMPLEMENT_ICMP(<=, Int32, uint32_t);
+ IMPLEMENT_ICMP(<=, Int64, uint64_t);
+ IMPLEMENT_POINTERCMP(<=);
+ default:
+ cerr << "Unhandled type for ICMP_ULE predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+static GenericValue executeICMP_SLE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(<=, Int8, int8_t);
+ IMPLEMENT_ICMP(<=, Int16, int16_t);
+ IMPLEMENT_ICMP(<=, Int32, int32_t);
+ IMPLEMENT_ICMP(<=, Int64, int64_t);
+ IMPLEMENT_POINTERCMP(<=);
default:
- std::cout << "Unhandled type for SetNE instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for ICMP_SLE predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetLEInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_UGE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
- IMPLEMENT_SETCC(<=, UByte);
- IMPLEMENT_SETCC(<=, SByte);
- IMPLEMENT_SETCC(<=, UShort);
- IMPLEMENT_SETCC(<=, Short);
- IMPLEMENT_SETCC(<=, UInt);
- IMPLEMENT_SETCC(<=, Int);
- IMPLEMENT_SETCC(<=, ULong);
- IMPLEMENT_SETCC(<=, Long);
- IMPLEMENT_SETCC(<=, Float);
- IMPLEMENT_SETCC(<=, Double);
- IMPLEMENT_POINTERSETCC(<=);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(>=, Int8, uint8_t);
+ IMPLEMENT_ICMP(>=, Int16, uint16_t);
+ IMPLEMENT_ICMP(>=, Int32, uint32_t);
+ IMPLEMENT_ICMP(>=, Int64, uint64_t);
+ IMPLEMENT_POINTERCMP(>=);
default:
- std::cout << "Unhandled type for SetLE instruction: " << Ty << "\n";
+ cerr << "Unhandled type for ICMP_UGE predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetGEInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_SGE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_ICMP(>=, Int8, int8_t);
+ IMPLEMENT_ICMP(>=, Int16, int16_t);
+ IMPLEMENT_ICMP(>=, Int32, int32_t);
+ IMPLEMENT_ICMP(>=, Int64, int64_t);
+ IMPLEMENT_POINTERCMP(>=);
+ default:
+ cerr << "Unhandled type for ICMP_SGE predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+void Interpreter::visitICmpInst(ICmpInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ 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.getPredicate()) {
+ case ICmpInst::ICMP_EQ: R = executeICMP_EQ(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_NE: R = executeICMP_NE(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_ULT: R = executeICMP_ULT(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_SLT: R = executeICMP_SLT(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_UGT: R = executeICMP_UGT(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_SGT: R = executeICMP_SGT(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_ULE: R = executeICMP_ULE(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_SLE: R = executeICMP_SLE(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_UGE: R = executeICMP_UGE(Src1, Src2, Ty); break;
+ case ICmpInst::ICMP_SGE: R = executeICMP_SGE(Src1, Src2, Ty); break;
+ default:
+ cerr << "Don't know how to handle this ICmp predicate!\n-->" << I;
+ abort();
+ }
+
+ SetValue(&I, R, SF);
+}
+
+#define IMPLEMENT_FCMP(OP, TY) \
+ case Type::TY##TyID: Dest.BoolVal = Src1.TY##Val OP Src2.TY##Val; break
+
+static GenericValue executeFCMP_EQ(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
- IMPLEMENT_SETCC(>=, UByte);
- IMPLEMENT_SETCC(>=, SByte);
- IMPLEMENT_SETCC(>=, UShort);
- IMPLEMENT_SETCC(>=, Short);
- IMPLEMENT_SETCC(>=, UInt);
- IMPLEMENT_SETCC(>=, Int);
- IMPLEMENT_SETCC(>=, ULong);
- IMPLEMENT_SETCC(>=, Long);
- IMPLEMENT_SETCC(>=, Float);
- IMPLEMENT_SETCC(>=, Double);
- IMPLEMENT_POINTERSETCC(>=);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(==, Float);
+ IMPLEMENT_FCMP(==, Double);
default:
- std::cout << "Unhandled type for SetGE instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for SetEQ instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetLTInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeFCMP_NE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
- IMPLEMENT_SETCC(<, UByte);
- IMPLEMENT_SETCC(<, SByte);
- IMPLEMENT_SETCC(<, UShort);
- IMPLEMENT_SETCC(<, Short);
- IMPLEMENT_SETCC(<, UInt);
- IMPLEMENT_SETCC(<, Int);
- IMPLEMENT_SETCC(<, ULong);
- IMPLEMENT_SETCC(<, Long);
- IMPLEMENT_SETCC(<, Float);
- IMPLEMENT_SETCC(<, Double);
- IMPLEMENT_POINTERSETCC(<);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(!=, Float);
+ IMPLEMENT_FCMP(!=, Double);
+
default:
- std::cout << "Unhandled type for SetLT instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for SetNE instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetGTInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeFCMP_LE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getPrimitiveID()) {
- IMPLEMENT_SETCC(>, UByte);
- IMPLEMENT_SETCC(>, SByte);
- IMPLEMENT_SETCC(>, UShort);
- IMPLEMENT_SETCC(>, Short);
- IMPLEMENT_SETCC(>, UInt);
- IMPLEMENT_SETCC(>, Int);
- IMPLEMENT_SETCC(>, ULong);
- IMPLEMENT_SETCC(>, Long);
- IMPLEMENT_SETCC(>, Float);
- IMPLEMENT_SETCC(>, Double);
- IMPLEMENT_POINTERSETCC(>);
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(<=, Float);
+ IMPLEMENT_FCMP(<=, Double);
default:
- std::cout << "Unhandled type for SetGT instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for SetLE instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
+static GenericValue executeFCMP_GE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(>=, Float);
+ IMPLEMENT_FCMP(>=, Double);
+ default:
+ cerr << "Unhandled type for SetGE instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_LT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(<, Float);
+ IMPLEMENT_FCMP(<, Double);
+ default:
+ cerr << "Unhandled type for SetLT instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_GT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(>, Float);
+ IMPLEMENT_FCMP(>, Double);
+ default:
+ cerr << "Unhandled type for SetGT instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+void Interpreter::visitFCmpInst(FCmpInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ 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.getPredicate()) {
+ case FCmpInst::FCMP_FALSE: R.BoolVal = false;
+ case FCmpInst::FCMP_ORD: R = executeFCMP_EQ(Src1, Src2, Ty); break; ///???
+ case FCmpInst::FCMP_UNO: R = executeFCMP_NE(Src1, Src2, Ty); break; ///???
+ case FCmpInst::FCMP_OEQ:
+ case FCmpInst::FCMP_UEQ: R = executeFCMP_EQ(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_ONE:
+ case FCmpInst::FCMP_UNE: R = executeFCMP_NE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OLT:
+ case FCmpInst::FCMP_ULT: R = executeFCMP_LT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OGT:
+ case FCmpInst::FCMP_UGT: R = executeFCMP_GT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OLE:
+ case FCmpInst::FCMP_ULE: R = executeFCMP_LE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OGE:
+ case FCmpInst::FCMP_UGE: R = executeFCMP_GE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_TRUE: R.BoolVal = true;
+ default:
+ cerr << "Don't know how to handle this FCmp predicate!\n-->" << I;
+ abort();
+ }
+
+ SetValue(&I, R, SF);
+}
+
+static GenericValue executeCmpInst(unsigned predicate, GenericValue Src1,
+ GenericValue Src2, const Type *Ty) {
+ GenericValue Result;
+ switch (predicate) {
+ case ICmpInst::ICMP_EQ: return executeICMP_EQ(Src1, Src2, Ty);
+ case ICmpInst::ICMP_NE: return executeICMP_NE(Src1, Src2, Ty);
+ case ICmpInst::ICMP_UGT: return executeICMP_UGT(Src1, Src2, Ty);
+ case ICmpInst::ICMP_SGT: return executeICMP_SGT(Src1, Src2, Ty);
+ case ICmpInst::ICMP_ULT: return executeICMP_ULT(Src1, Src2, Ty);
+ case ICmpInst::ICMP_SLT: return executeICMP_SLT(Src1, Src2, Ty);
+ case ICmpInst::ICMP_UGE: return executeICMP_UGE(Src1, Src2, Ty);
+ case ICmpInst::ICMP_SGE: return executeICMP_SGE(Src1, Src2, Ty);
+ case ICmpInst::ICMP_ULE: return executeICMP_ULE(Src1, Src2, Ty);
+ case ICmpInst::ICMP_SLE: return executeICMP_SLE(Src1, Src2, Ty);
+ case FCmpInst::FCMP_ORD: return executeFCMP_EQ(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_UNO: return executeFCMP_NE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OEQ:
+ case FCmpInst::FCMP_UEQ: return executeFCMP_EQ(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_ONE:
+ case FCmpInst::FCMP_UNE: return executeFCMP_NE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OLT:
+ case FCmpInst::FCMP_ULT: return executeFCMP_LT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OGT:
+ case FCmpInst::FCMP_UGT: return executeFCMP_GT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OLE:
+ case FCmpInst::FCMP_ULE: return executeFCMP_LE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OGE:
+ case FCmpInst::FCMP_UGE: return executeFCMP_GE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_FALSE: {
+ GenericValue Result;
+ Result.BoolVal = false;
+ return Result;
+ }
+ case FCmpInst::FCMP_TRUE: {
+ GenericValue Result;
+ Result.BoolVal = true;
+ return Result;
+ }
+ default:
+ cerr << "Unhandled Cmp predicate\n";
+ abort();
+ }
+}
+
void Interpreter::visitBinaryOperator(BinaryOperator &I) {
ExecutionContext &SF = ECStack.back();
const Type *Ty = I.getOperand(0)->getType();
case Instruction::Add: R = executeAddInst (Src1, Src2, Ty); break;
case Instruction::Sub: R = executeSubInst (Src1, Src2, Ty); break;
case Instruction::Mul: R = executeMulInst (Src1, Src2, Ty); break;
- case Instruction::Div: R = executeDivInst (Src1, Src2, Ty); break;
- case Instruction::Rem: R = executeRemInst (Src1, Src2, Ty); break;
+ case Instruction::UDiv: R = executeUDivInst (Src1, Src2, Ty); break;
+ case Instruction::SDiv: R = executeSDivInst (Src1, Src2, Ty); break;
+ case Instruction::FDiv: R = executeFDivInst (Src1, Src2, Ty); break;
+ case Instruction::URem: R = executeURemInst (Src1, Src2, Ty); break;
+ case Instruction::SRem: R = executeSRemInst (Src1, Src2, Ty); break;
+ case Instruction::FRem: R = executeFRemInst (Src1, Src2, Ty); break;
case Instruction::And: R = executeAndInst (Src1, Src2, Ty); break;
case Instruction::Or: R = executeOrInst (Src1, Src2, Ty); break;
case Instruction::Xor: R = executeXorInst (Src1, Src2, Ty); break;
- case Instruction::SetEQ: R = executeSetEQInst(Src1, Src2, Ty); break;
- case Instruction::SetNE: R = executeSetNEInst(Src1, Src2, Ty); break;
- case Instruction::SetLE: R = executeSetLEInst(Src1, Src2, Ty); break;
- case Instruction::SetGE: R = executeSetGEInst(Src1, Src2, Ty); break;
- case Instruction::SetLT: R = executeSetLTInst(Src1, Src2, Ty); break;
- case Instruction::SetGT: R = executeSetGTInst(Src1, Src2, Ty); break;
default:
- std::cout << "Don't know how to handle this binary operator!\n-->" << I;
+ cerr << "Don't know how to handle this binary operator!\n-->" << I;
abort();
}
SetValue(&I, R, SF);
}
+static GenericValue executeSelectInst(GenericValue Src1, GenericValue Src2,
+ GenericValue Src3) {
+ return Src1.BoolVal ? Src2 : Src3;
+}
+
+void Interpreter::visitSelectInst(SelectInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ GenericValue Src1 = getOperandValue(I.getOperand(0), SF);
+ GenericValue Src2 = getOperandValue(I.getOperand(1), SF);
+ GenericValue Src3 = getOperandValue(I.getOperand(2), SF);
+ GenericValue R = executeSelectInst(Src1, Src2, Src3);
+ SetValue(&I, R, SF);
+}
+
+
//===----------------------------------------------------------------------===//
// Terminator Instruction Implementations
//===----------------------------------------------------------------------===//
-// PerformExitStuff - Print out counters and profiling information if
-// applicable...
-void Interpreter::PerformExitStuff() {
-#ifdef PROFILE_STRUCTURE_FIELDS
- // Print out structure field accounting information...
- if (!FieldAccessCounts.empty()) {
- CW << "Profile Field Access Counts:\n";
- std::map<const StructType *, std::vector<unsigned> >::iterator
- I = FieldAccessCounts.begin(), E = FieldAccessCounts.end();
- for (; I != E; ++I) {
- std::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";
- std::cout.precision(3);
- for (I = FieldAccessCounts.begin(); I != E; ++I) {
- std::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) {
+ // runAtExitHandlers() assumes there are no stack frames, but
+ // if exit() was called, then it had a stack frame. Blow away
+ // the stack before interpreting atexit handlers.
+ ECStack.clear ();
+ runAtExitHandlers ();
+ exit (GV.Int32Val);
}
-void Interpreter::exitCalled(GenericValue GV) {
- if (!QuietMode) {
- std::cout << "Program returned ";
- print(Type::IntTy, GV);
- std::cout << " via 'void exit(int)'\n";
- }
+/// Pop the last stack frame off of ECStack and then copy the result
+/// back into the result variable if we are not returning void. The
+/// result variable may be the ExitValue, or the Value of the calling
+/// CallInst if there was a previous stack frame. This method may
+/// invalidate any ECStack iterators you have. This method also takes
+/// care of switching to the normal destination BB, if we are returning
+/// from an invoke.
+///
+void Interpreter::popStackAndReturnValueToCaller (const Type *RetTy,
+ GenericValue Result) {
+ // Pop the current stack frame.
+ ECStack.pop_back();
- ExitCode = GV.SByteVal;
- ECStack.clear();
+ if (ECStack.empty()) { // Finished main. Put result into exit code...
+ if (RetTy && RetTy->isIntegral()) { // Nonvoid return type?
+ ExitValue = Result; // Capture the exit value of the program
+ } else {
+ memset(&ExitValue, 0, sizeof(ExitValue));
+ }
+ } else {
+ // If we have a previous stack frame, and we have a previous call,
+ // fill in the return value...
+ ExecutionContext &CallingSF = ECStack.back();
+ if (Instruction *I = CallingSF.Caller.getInstruction()) {
+ if (CallingSF.Caller.getType() != Type::VoidTy) // Save result...
+ SetValue(I, Result, CallingSF);
+ if (InvokeInst *II = dyn_cast<InvokeInst> (I))
+ SwitchToNewBasicBlock (II->getNormalDest (), CallingSF);
+ CallingSF.Caller = CallSite(); // We returned from the call...
+ }
+ }
}
void Interpreter::visitReturnInst(ReturnInst &I) {
ExecutionContext &SF = ECStack.back();
- const Type *RetTy = 0;
+ const Type *RetTy = Type::VoidTy;
GenericValue Result;
// Save away the return value... (if we are not 'ret void')
Result = getOperandValue(I.getReturnValue(), SF);
}
- // Save previously executing meth
- const Function *M = ECStack.back().CurFunction;
-
- // 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?
- if (!QuietMode) {
- CW << "Function " << M->getType() << " \"" << M->getName()
- << "\" returned ";
- print(RetTy, Result);
- std::cout << "\n";
- }
+ popStackAndReturnValueToCaller(RetTy, Result);
+}
- if (RetTy->isIntegral())
- ExitCode = Result.IntVal; // Capture the exit code of the program
- } else {
- ExitCode = 0;
- }
- return;
- }
+void Interpreter::visitUnwindInst(UnwindInst &I) {
+ // Unwind stack
+ Instruction *Inst;
+ do {
+ ECStack.pop_back ();
+ if (ECStack.empty ())
+ abort ();
+ Inst = ECStack.back ().Caller.getInstruction ();
+ } while (!(Inst && isa<InvokeInst> (Inst)));
+
+ // Return from invoke
+ ExecutionContext &InvokingSF = ECStack.back ();
+ InvokingSF.Caller = CallSite ();
+
+ // Go to exceptional destination BB of invoke instruction
+ SwitchToNewBasicBlock(cast<InvokeInst>(Inst)->getUnwindDest(), InvokingSF);
+}
- // 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...
- } else if (!QuietMode) {
- // This must be a function that is executing because of a user 'call'
- // instruction.
- CW << "Function " << M->getType() << " \"" << M->getName()
- << "\" returned ";
- print(RetTy, Result);
- std::cout << "\n";
- }
+void Interpreter::visitUnreachableInst(UnreachableInst &I) {
+ cerr << "ERROR: Program executed an 'unreachable' instruction!\n";
+ abort();
}
void Interpreter::visitBranchInst(BranchInst &I) {
if (!I.isUnconditional()) {
Value *Cond = I.getCondition();
if (getOperandValue(Cond, SF).BoolVal == 0) // If false cond...
- Dest = I.getSuccessor(1);
+ Dest = I.getSuccessor(1);
}
SwitchToNewBasicBlock(Dest, SF);
}
// Check to see if any of the cases match...
BasicBlock *Dest = 0;
for (unsigned i = 2, e = I.getNumOperands(); i != e; i += 2)
- if (executeSetEQInst(CondVal,
- getOperandValue(I.getOperand(i), SF), ElTy).BoolVal) {
+ if (executeICMP_EQ(CondVal,
+ getOperandValue(I.getOperand(i), SF), ElTy).BoolVal) {
Dest = cast<BasicBlock>(I.getOperand(i+1));
break;
}
-
+
if (!Dest) Dest = I.getDefaultDest(); // No cases matched: use default
SwitchToNewBasicBlock(Dest, SF);
}
std::vector<GenericValue> ResultValues;
for (; PHINode *PN = dyn_cast<PHINode>(SF.CurInst); ++SF.CurInst) {
- if (Trace) CW << "Run:" << PN;
-
// Search for the value corresponding to this previous bb...
int i = PN->getBasicBlockIndex(PrevBB);
assert(i != -1 && "PHINode doesn't contain entry for predecessor??");
Value *IncomingValue = PN->getIncomingValue(i);
-
+
// Save the incoming value for this PHI node...
ResultValues.push_back(getOperandValue(IncomingValue, SF));
}
// Now loop over all of the PHI nodes setting their values...
SF.CurInst = SF.CurBB->begin();
- for (unsigned i = 0; PHINode *PN = dyn_cast<PHINode>(SF.CurInst);
- ++SF.CurInst, ++i)
+ for (unsigned i = 0; isa<PHINode>(SF.CurInst); ++SF.CurInst, ++i) {
+ PHINode *PN = cast<PHINode>(SF.CurInst);
SetValue(PN, ResultValues[i], SF);
+ }
}
-
//===----------------------------------------------------------------------===//
// Memory Instruction Implementations
//===----------------------------------------------------------------------===//
const Type *Ty = I.getType()->getElementType(); // Type to be allocated
// Get the number of elements being allocated by the array...
- unsigned NumElements = getOperandValue(I.getOperand(0), SF).UIntVal;
+ unsigned NumElements = getOperandValue(I.getOperand(0), SF).Int32Val;
// Allocate enough memory to hold the type...
- // FIXME: Don't use CALLOC, use a tainted malloc.
- void *Memory = calloc(NumElements, TD.getTypeSize(Ty));
+ void *Memory = malloc(NumElements * (size_t)TD.getTypeSize(Ty));
GenericValue Result = PTOGV(Memory);
assert(Result.PointerVal != 0 && "Null pointer returned by malloc!");
free(GVTOP(Value)); // Free memory
}
-
// getElementOffset - The workhorse for getelementptr.
//
-GenericValue Interpreter::executeGEPOperation(Value *Ptr, User::op_iterator I,
- User::op_iterator E,
- ExecutionContext &SF) {
+GenericValue Interpreter::executeGEPOperation(Value *Ptr, gep_type_iterator I,
+ gep_type_iterator E,
+ ExecutionContext &SF) {
assert(isa<PointerType>(Ptr->getType()) &&
"Cannot getElementOffset of a nonpointer type!");
PointerTy Total = 0;
- const Type *Ty = Ptr->getType();
for (; I != E; ++I) {
- if (const StructType *STy = dyn_cast<StructType>(Ty)) {
+ if (const StructType *STy = dyn_cast<StructType>(*I)) {
const StructLayout *SLO = TD.getStructLayout(STy);
-
- // Indicies must be ubyte constants...
- const ConstantUInt *CPU = cast<ConstantUInt>(*I);
- assert(CPU->getType() == Type::UByteTy);
- unsigned Index = CPU->getValue();
-
-#ifdef PROFILE_STRUCTURE_FIELDS
- if (ProfileStructureFields) {
- // Do accounting for this field...
- std::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)) {
+ const ConstantInt *CPU = cast<ConstantInt>(I.getOperand());
+ unsigned Index = unsigned(CPU->getZExtValue());
+
+ Total += (PointerTy)SLO->MemberOffsets[Index];
+ } else {
+ const SequentialType *ST = cast<SequentialType>(*I);
// Get the index number for the array... which must be long type...
- assert((*I)->getType() == Type::LongTy);
- unsigned Idx = getOperandValue(*I, SF).LongVal;
- if (const ArrayType *AT = dyn_cast<ArrayType>(ST))
- if (Idx >= AT->getNumElements() && ArrayChecksEnabled) {
- std::cerr << "Out of range memory access to element #" << Idx
- << " of a " << AT->getNumElements() << " element array."
- << " Subscript #" << *I << "\n";
- // Get outta here!!!
- siglongjmp(SignalRecoverBuffer, SIGTRAP);
- }
-
- Ty = ST->getElementType();
- unsigned Size = TD.getTypeSize(Ty);
- Total += Size*Idx;
- }
+ GenericValue IdxGV = getOperandValue(I.getOperand(), SF);
+
+ uint64_t Idx;
+ switch (I.getOperand()->getType()->getTypeID()) {
+ default: assert(0 && "Illegal getelementptr index for sequential type!");
+ case Type::Int8TyID: Idx = IdxGV.Int8Val; break;
+ case Type::Int16TyID: Idx = IdxGV.Int16Val; break;
+ case Type::Int32TyID: Idx = IdxGV.Int32Val; break;
+ case Type::Int64TyID: Idx = IdxGV.Int64Val; break;
+ }
+ Total += PointerTy(TD.getTypeSize(ST->getElementType())*Idx);
+ }
}
GenericValue Result;
void Interpreter::visitGetElementPtrInst(GetElementPtrInst &I) {
ExecutionContext &SF = ECStack.back();
SetValue(&I, TheEE->executeGEPOperation(I.getPointerOperand(),
- I.idx_begin(), I.idx_end(), SF), SF);
+ gep_type_begin(I), gep_type_end(I), SF), SF);
}
void Interpreter::visitLoadInst(LoadInst &I) {
I.getOperand(0)->getType());
}
-
-
//===----------------------------------------------------------------------===//
// Miscellaneous Instruction Implementations
//===----------------------------------------------------------------------===//
-void Interpreter::visitCallInst(CallInst &I) {
+void Interpreter::visitCallSite(CallSite CS) {
ExecutionContext &SF = ECStack.back();
- SF.Caller = &I;
+
+ // Check to see if this is an intrinsic function call...
+ if (Function *F = CS.getCalledFunction())
+ if (F->isExternal ())
+ switch (F->getIntrinsicID()) {
+ case Intrinsic::not_intrinsic:
+ break;
+ case Intrinsic::vastart: { // va_start
+ GenericValue ArgIndex;
+ ArgIndex.UIntPairVal.first = ECStack.size() - 1;
+ ArgIndex.UIntPairVal.second = 0;
+ SetValue(CS.getInstruction(), ArgIndex, SF);
+ return;
+ }
+ case Intrinsic::vaend: // va_end is a noop for the interpreter
+ return;
+ case Intrinsic::vacopy: // va_copy: dest = src
+ SetValue(CS.getInstruction(), getOperandValue(*CS.arg_begin(), SF), SF);
+ return;
+ default:
+ // If it is an unknown intrinsic function, use the intrinsic lowering
+ // class to transform it into hopefully tasty LLVM code.
+ //
+ Instruction *Prev = CS.getInstruction()->getPrev();
+ BasicBlock *Parent = CS.getInstruction()->getParent();
+ IL->LowerIntrinsicCall(cast<CallInst>(CS.getInstruction()));
+
+ // Restore the CurInst pointer to the first instruction newly inserted, if
+ // any.
+ if (!Prev) {
+ SF.CurInst = Parent->begin();
+ } else {
+ SF.CurInst = Prev;
+ ++SF.CurInst;
+ }
+ return;
+ }
+
+ SF.Caller = CS;
std::vector<GenericValue> ArgVals;
- ArgVals.reserve(I.getNumOperands()-1);
- for (unsigned i = 1; i < I.getNumOperands(); ++i) {
- ArgVals.push_back(getOperandValue(I.getOperand(i), SF));
+ const unsigned NumArgs = SF.Caller.arg_size();
+ ArgVals.reserve(NumArgs);
+ for (CallSite::arg_iterator i = SF.Caller.arg_begin(),
+ e = SF.Caller.arg_end(); i != e; ++i) {
+ Value *V = *i;
+ ArgVals.push_back(getOperandValue(V, SF));
// Promote all integral types whose size is < sizeof(int) into ints. We do
// this by zero or sign extending the value as appropriate according to the
// source type.
- if (I.getOperand(i)->getType()->isIntegral() &&
- I.getOperand(i)->getType()->getPrimitiveSize() < 4) {
- const Type *Ty = I.getOperand(i)->getType();
- if (Ty == Type::ShortTy)
- ArgVals.back().IntVal = ArgVals.back().ShortVal;
- else if (Ty == Type::UShortTy)
- ArgVals.back().UIntVal = ArgVals.back().UShortVal;
- else if (Ty == Type::SByteTy)
- ArgVals.back().IntVal = ArgVals.back().SByteVal;
- else if (Ty == Type::UByteTy)
- ArgVals.back().UIntVal = ArgVals.back().UByteVal;
+ const Type *Ty = V->getType();
+ if (Ty->isIntegral() && Ty->getPrimitiveSize() < 4) {
+ if (Ty == Type::Int16Ty)
+ ArgVals.back().Int32Val = ArgVals.back().Int16Val;
+ else if (Ty == Type::Int8Ty)
+ ArgVals.back().Int32Val = ArgVals.back().Int8Val;
else if (Ty == Type::BoolTy)
- ArgVals.back().UIntVal = ArgVals.back().BoolVal;
+ ArgVals.back().Int32Val = ArgVals.back().BoolVal;
else
- assert(0 && "Unknown type!");
+ assert(0 && "Unknown type!");
}
}
- // To handle indirect calls, we must get the pointer value from the argument
+ // To handle indirect calls, we must get the pointer value from the argument
// and treat it as a function pointer.
- GenericValue SRC = getOperandValue(I.getCalledValue(), SF);
+ GenericValue SRC = getOperandValue(SF.Caller.getCalledValue(), SF);
callFunction((Function*)GVTOP(SRC), ArgVals);
}
#define IMPLEMENT_SHIFT(OP, TY) \
- case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.UByteVal; break
+ case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.Int8Val; break
+
+#define IMPLEMENT_SIGNLESS_SHIFT(OP, TY, CAST) \
+ case Type::TY##TyID: Dest.TY##Val = ((CAST)Src1.TY##Val) OP Src2.Int8Val; \
+ break
+
+static GenericValue executeShlInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SHIFT(<<, Int8);
+ IMPLEMENT_SHIFT(<<, Int16);
+ IMPLEMENT_SHIFT(<<, Int32);
+ IMPLEMENT_SHIFT(<<, Int64);
+ default:
+ cerr << "Unhandled type for Shl instruction: " << *Ty << "\n";
+ }
+ return Dest;
+}
+
+static GenericValue executeLShrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int8, uint8_t);
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int16, uint16_t);
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int32, uint32_t);
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int64, uint64_t);
+ default:
+ cerr << "Unhandled type for LShr instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeAShrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int8, int8_t);
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int16, int16_t);
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int32, int32_t);
+ IMPLEMENT_SIGNLESS_SHIFT(>>, Int64, int64_t);
+ default:
+ cerr << "Unhandled type for AShr instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
void Interpreter::visitShl(ShiftInst &I) {
ExecutionContext &SF = ECStack.back();
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);
- IMPLEMENT_SHIFT(<<, ULong);
- IMPLEMENT_SHIFT(<<, Long);
- default:
- std::cout << "Unhandled type for Shl instruction: " << *Ty << "\n";
- }
+ Dest = executeShlInst (Src1, Src2, Ty);
SetValue(&I, Dest, SF);
}
-void Interpreter::visitShr(ShiftInst &I) {
+void Interpreter::visitLShr(ShiftInst &I) {
ExecutionContext &SF = ECStack.back();
const Type *Ty = I.getOperand(0)->getType();
GenericValue Src1 = getOperandValue(I.getOperand(0), SF);
GenericValue Src2 = getOperandValue(I.getOperand(1), SF);
GenericValue Dest;
+ Dest = executeLShrInst (Src1, Src2, Ty);
+ SetValue(&I, Dest, SF);
+}
- switch (Ty->getPrimitiveID()) {
- IMPLEMENT_SHIFT(>>, UByte);
- IMPLEMENT_SHIFT(>>, SByte);
- IMPLEMENT_SHIFT(>>, UShort);
- IMPLEMENT_SHIFT(>>, Short);
- IMPLEMENT_SHIFT(>>, UInt);
- IMPLEMENT_SHIFT(>>, Int);
- IMPLEMENT_SHIFT(>>, ULong);
- IMPLEMENT_SHIFT(>>, Long);
- default:
- std::cout << "Unhandled type for Shr instruction: " << *Ty << "\n";
- abort();
- }
+void Interpreter::visitAShr(ShiftInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ const Type *Ty = I.getOperand(0)->getType();
+ GenericValue Src1 = getOperandValue(I.getOperand(0), SF);
+ GenericValue Src2 = getOperandValue(I.getOperand(1), SF);
+ GenericValue Dest;
+ Dest = executeAShrInst (Src1, Src2, Ty);
SetValue(&I, Dest, SF);
}
-#define IMPLEMENT_CAST(DTY, DCTY, STY) \
- case Type::STY##TyID: Dest.DTY##Val = DCTY Src.STY##Val; break;
-
-#define IMPLEMENT_CAST_CASE_START(DESTTY, DESTCTY) \
- case Type::DESTTY##TyID: \
- switch (SrcTy->getPrimitiveID()) { \
- IMPLEMENT_CAST(DESTTY, DESTCTY, Bool); \
- 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); \
- IMPLEMENT_CAST(DESTTY, DESTCTY, Int); \
- IMPLEMENT_CAST(DESTTY, DESTCTY, ULong); \
- IMPLEMENT_CAST(DESTTY, DESTCTY, Long); \
- IMPLEMENT_CAST(DESTTY, DESTCTY, Pointer);
-
-#define IMPLEMENT_CAST_CASE_FP_IMP(DESTTY, DESTCTY) \
- IMPLEMENT_CAST(DESTTY, DESTCTY, Float); \
- IMPLEMENT_CAST(DESTTY, DESTCTY, Double)
-
-#define IMPLEMENT_CAST_CASE_END() \
- default: std::cout << "Unhandled cast: " << SrcTy << " to " << Ty << "\n"; \
+#define IMPLEMENT_CAST_START \
+ switch (DstTy->getTypeID()) {
+
+#define IMPLEMENT_CAST(STY, DTY, CAST) \
+ case Type::STY##TyID: Dest.DTY##Val = (CAST(Src.STY##Val)); break;
+
+#define IMPLEMENT_CAST_CASE(DTY, CAST) \
+ case Type::DTY##TyID: \
+ switch (SrcTy->getTypeID()) { \
+ IMPLEMENT_CAST(Bool, DTY, CAST); \
+ IMPLEMENT_CAST(Int8, DTY, CAST); \
+ IMPLEMENT_CAST(Int16, DTY, CAST); \
+ IMPLEMENT_CAST(Int32, DTY, CAST); \
+ IMPLEMENT_CAST(Int64, DTY, CAST); \
+ IMPLEMENT_CAST(Pointer,DTY, CAST); \
+ IMPLEMENT_CAST(Float, DTY, CAST); \
+ IMPLEMENT_CAST(Double, DTY, CAST); \
+ default: \
+ cerr << "Unhandled cast: " \
+ << *SrcTy << " to " << *DstTy << "\n"; \
abort(); \
} \
break
-#define IMPLEMENT_CAST_CASE(DESTTY, DESTCTY) \
- IMPLEMENT_CAST_CASE_START(DESTTY, DESTCTY); \
- IMPLEMENT_CAST_CASE_FP_IMP(DESTTY, DESTCTY); \
- IMPLEMENT_CAST_CASE_END()
+#define IMPLEMENT_CAST_END \
+ default: cerr \
+ << "Unhandled dest type for cast instruction: " \
+ << *DstTy << "\n"; \
+ abort(); \
+ }
-static GenericValue executeCastOperation(Value *SrcVal, const Type *Ty,
- ExecutionContext &SF) {
+GenericValue Interpreter::executeCastOperation(Instruction::CastOps opcode,
+ Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
const Type *SrcTy = SrcVal->getType();
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- 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 short));
- 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));
- IMPLEMENT_CAST_CASE(Float , (float));
- IMPLEMENT_CAST_CASE(Double , (double));
- IMPLEMENT_CAST_CASE(Bool , (bool));
- default:
- std::cout << "Unhandled dest type for cast instruction: " << *Ty << "\n";
- abort();
+ if (opcode == Instruction::Trunc && DstTy->getTypeID() == Type::BoolTyID) {
+ // For truncations to bool, we must clear the high order bits of the source
+ switch (SrcTy->getTypeID()) {
+ case Type::BoolTyID: Src.BoolVal &= 1; break;
+ case Type::Int8TyID: Src.Int8Val &= 1; break;
+ case Type::Int16TyID: Src.Int16Val &= 1; break;
+ case Type::Int32TyID: Src.Int32Val &= 1; break;
+ case Type::Int64TyID: Src.Int64Val &= 1; break;
+ default:
+ assert(0 && "Can't trunc a non-integer!");
+ break;
+ }
+ } else if (opcode == Instruction::SExt &&
+ SrcTy->getTypeID() == Type::BoolTyID) {
+ // For sign extension from bool, we must extend the source bits.
+ SrcTy = Type::Int64Ty;
+ Src.Int64Val = 0 - Src.BoolVal;
}
+ switch (opcode) {
+ case Instruction::Trunc: // src integer, dest integral (can't be long)
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Bool , (bool));
+ IMPLEMENT_CAST_CASE(Int8 , (uint8_t));
+ IMPLEMENT_CAST_CASE(Int16, (uint16_t));
+ IMPLEMENT_CAST_CASE(Int32, (uint32_t));
+ IMPLEMENT_CAST_CASE(Int64, (uint64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::ZExt: // src integral (can't be long), dest integer
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Int8 , (uint8_t));
+ IMPLEMENT_CAST_CASE(Int16, (uint16_t));
+ IMPLEMENT_CAST_CASE(Int32, (uint32_t));
+ IMPLEMENT_CAST_CASE(Int64, (uint64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::SExt: // src integral (can't be long), dest integer
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Int8 , (uint8_t)(int8_t));
+ IMPLEMENT_CAST_CASE(Int16, (uint16_t)(int16_t));
+ IMPLEMENT_CAST_CASE(Int32, (uint32_t)(int32_t));
+ IMPLEMENT_CAST_CASE(Int64, (uint64_t)(int64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::FPTrunc: // src double, dest float
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Float , (float));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::FPExt: // src float, dest double
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Double , (double));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::UIToFP: // src integral, dest floating
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Float , (float)(uint64_t));
+ IMPLEMENT_CAST_CASE(Double , (double)(uint64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::SIToFP: // src integeral, dest floating
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Float , (float)(int64_t));
+ IMPLEMENT_CAST_CASE(Double , (double)(int64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::FPToUI: // src floating, dest integral
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Bool , (bool));
+ IMPLEMENT_CAST_CASE(Int8 , (uint8_t));
+ IMPLEMENT_CAST_CASE(Int16, (uint16_t));
+ IMPLEMENT_CAST_CASE(Int32, (uint32_t ));
+ IMPLEMENT_CAST_CASE(Int64, (uint64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::FPToSI: // src floating, dest integral
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Bool , (bool));
+ IMPLEMENT_CAST_CASE(Int8 , (uint8_t) (int8_t));
+ IMPLEMENT_CAST_CASE(Int16, (uint16_t)(int16_t));
+ IMPLEMENT_CAST_CASE(Int32, (uint32_t)(int32_t));
+ IMPLEMENT_CAST_CASE(Int64, (uint64_t)(int64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::PtrToInt: // src pointer, dest integral
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Bool , (bool));
+ IMPLEMENT_CAST_CASE(Int8 , (uint8_t));
+ IMPLEMENT_CAST_CASE(Int16, (uint16_t));
+ IMPLEMENT_CAST_CASE(Int32, (uint32_t));
+ IMPLEMENT_CAST_CASE(Int64, (uint64_t));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::IntToPtr: // src integral, dest pointer
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Pointer, (PointerTy));
+ IMPLEMENT_CAST_END
+ break;
+ case Instruction::BitCast: // src any, dest any (same size)
+ IMPLEMENT_CAST_START
+ IMPLEMENT_CAST_CASE(Bool , (bool));
+ IMPLEMENT_CAST_CASE(Int8 , (uint8_t));
+ IMPLEMENT_CAST_CASE(Int16 , (uint16_t));
+ IMPLEMENT_CAST_CASE(Int32 , (uint32_t));
+ IMPLEMENT_CAST_CASE(Int64 , (uint64_t));
+ IMPLEMENT_CAST_CASE(Pointer, (PointerTy));
+ IMPLEMENT_CAST_CASE(Float , (float));
+ IMPLEMENT_CAST_CASE(Double , (double));
+ IMPLEMENT_CAST_END
+ break;
+ default:
+ cerr << "Invalid cast opcode for cast instruction: " << opcode << "\n";
+ abort();
+ }
return Dest;
}
-
void Interpreter::visitCastInst(CastInst &I) {
ExecutionContext &SF = ECStack.back();
- SetValue(&I, executeCastOperation(I.getOperand(0), I.getType(), SF), SF);
+ SetValue(&I, executeCastOperation(I.getOpcode(), I.getOperand(0),
+ I.getType(), SF), SF);
}
-void Interpreter::visitVarArgInst(VarArgInst &I) {
- ExecutionContext &SF = ECStack.back();
-
- // Get the pointer to the valist element. LLI treats the valist in memory as
- // an integer.
- GenericValue VAListPtr = getOperandValue(I.getOperand(0), SF);
+#define IMPLEMENT_VAARG(TY) \
+ case Type::TY##TyID: Dest.TY##Val = Src.TY##Val; break
- // Load the pointer
- GenericValue VAList =
- TheEE->LoadValueFromMemory((GenericValue *)GVTOP(VAListPtr), Type::UIntTy);
+void Interpreter::visitVAArgInst(VAArgInst &I) {
+ ExecutionContext &SF = ECStack.back();
- unsigned Argument = VAList.IntVal++;
+ // Get the incoming valist parameter. LLI treats the valist as a
+ // (ec-stack-depth var-arg-index) pair.
+ GenericValue VAList = getOperandValue(I.getOperand(0), SF);
+ GenericValue Dest;
+ GenericValue Src = ECStack[VAList.UIntPairVal.first]
+ .VarArgs[VAList.UIntPairVal.second];
+ const Type *Ty = I.getType();
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_VAARG(Int8);
+ IMPLEMENT_VAARG(Int16);
+ IMPLEMENT_VAARG(Int32);
+ IMPLEMENT_VAARG(Int64);
+ IMPLEMENT_VAARG(Pointer);
+ IMPLEMENT_VAARG(Float);
+ IMPLEMENT_VAARG(Double);
+ IMPLEMENT_VAARG(Bool);
+ default:
+ cerr << "Unhandled dest type for vaarg instruction: " << *Ty << "\n";
+ abort();
+ }
- // Update the valist to point to the next argument...
- TheEE->StoreValueToMemory(VAList, (GenericValue *)GVTOP(VAListPtr),
- Type::UIntTy);
+ // Set the Value of this Instruction.
+ SetValue(&I, Dest, SF);
- // Set the value...
- assert(Argument < SF.VarArgs.size() &&
- "Accessing past the last vararg argument!");
- SetValue(&I, SF.VarArgs[Argument], SF);
+ // Move the pointer to the next vararg.
+ ++VAList.UIntPairVal.second;
}
//===----------------------------------------------------------------------===//
// Dispatch and Execution Code
//===----------------------------------------------------------------------===//
-FunctionInfo::FunctionInfo(Function *F) : Annotation(FunctionInfoAID) {
- // Assign slot numbers to the function arguments...
- for (Function::const_aiterator AI = F->abegin(), E = F->aend(); AI != E; ++AI)
- AI->addAnnotation(new SlotNumber(getValueSlot(AI)));
-
- // Iterate over all of the instructions...
- unsigned InstNum = 0;
- for (Function::iterator BB = F->begin(), BBE = F->end(); BB != BBE; ++BB)
- for (BasicBlock::iterator II = BB->begin(), IE = BB->end(); II != IE; ++II)
- // For each instruction... Add Annote
- II->addAnnotation(new InstNumber(++InstNum, getValueSlot(II)));
-}
-
-unsigned FunctionInfo::getValueSlot(const Value *V) {
- unsigned Plane = V->getType()->getUniqueID();
- if (Plane >= NumPlaneElements.size())
- NumPlaneElements.resize(Plane+1, 0);
- return NumPlaneElements[Plane]++;
-}
-
-
//===----------------------------------------------------------------------===//
// callFunction - Execute the specified function...
//
void Interpreter::callFunction(Function *F,
const std::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!");
- if (F->isExternal()) {
- GenericValue Result = callExternalFunction(F, ArgVals);
- const Type *RetTy = F->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();
- SetValue(SF.Caller, Result, SF);
-
- SF.Caller = 0; // We returned from the call...
- } else if (!QuietMode) {
- // print it.
- CW << "Function " << F->getType() << " \"" << F->getName()
- << "\" returned ";
- print(RetTy, Result);
- std::cout << "\n";
-
- if (RetTy->isIntegral())
- ExitCode = Result.IntVal; // Capture the exit code of the program
- }
- }
+ assert((ECStack.empty() || ECStack.back().Caller.getInstruction() == 0 ||
+ ECStack.back().Caller.arg_size() == ArgVals.size()) &&
+ "Incorrect number of arguments passed into function call!");
+ // Make a new stack frame... and fill it in.
+ ECStack.push_back(ExecutionContext());
+ ExecutionContext &StackFrame = ECStack.back();
+ StackFrame.CurFunction = F;
+ // Special handling for external functions.
+ if (F->isExternal()) {
+ GenericValue Result = callExternalFunction (F, ArgVals);
+ // Simulate a 'ret' instruction of the appropriate type.
+ popStackAndReturnValueToCaller (F->getReturnType (), Result);
return;
}
- // Process the function, assigning instruction numbers to the instructions in
- // the function. Also calculate the number of values for each type slot
- // active.
- //
- FunctionInfo *FuncInfo =
- (FunctionInfo*)F->getOrCreateAnnotation(FunctionInfoAID);
- ECStack.push_back(ExecutionContext()); // Make a new stack frame...
-
- ExecutionContext &StackFrame = ECStack.back(); // Fill it in...
- StackFrame.CurFunction = F;
+ // Get pointers to first LLVM BB & Instruction in function.
StackFrame.CurBB = F->begin();
StackFrame.CurInst = StackFrame.CurBB->begin();
- StackFrame.FuncInfo = FuncInfo;
-
- // Initialize the values to nothing...
- StackFrame.Values.resize(FuncInfo->NumPlaneElements.size());
- for (unsigned i = 0; i < FuncInfo->NumPlaneElements.size(); ++i) {
- StackFrame.Values[i].resize(FuncInfo->NumPlaneElements[i]);
-
- // Taint the initial values of stuff
- memset(&StackFrame.Values[i][0], 42,
- FuncInfo->NumPlaneElements[i]*sizeof(GenericValue));
- }
-
// Run through the function arguments and initialize their values...
- assert((ArgVals.size() == F->asize() ||
- (ArgVals.size() > F->asize() && F->getFunctionType()->isVarArg())) &&
+ assert((ArgVals.size() == F->arg_size() ||
+ (ArgVals.size() > F->arg_size() && F->getFunctionType()->isVarArg()))&&
"Invalid number of values passed to function invocation!");
// Handle non-varargs arguments...
unsigned i = 0;
- for (Function::aiterator AI = F->abegin(), E = F->aend(); AI != E; ++AI, ++i)
+ for (Function::arg_iterator AI = F->arg_begin(), E = F->arg_end(); AI != E; ++AI, ++i)
SetValue(AI, ArgVals[i], StackFrame);
// Handle varargs arguments...
StackFrame.VarArgs.assign(ArgVals.begin()+i, ArgVals.end());
}
-// 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
-
- if (Trace) CW << "Run:" << I;
-
- // Track the number of dynamic instructions executed.
- ++NumDynamicInsts;
-
- // 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
- if (SigNo != SIGINT) {
- std::cout << "EXCEPTION OCCURRED [" << strsignal(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) {
- std::cout << "CTRL-C Detected, execution halted.\n";
- }
- InInstruction = false;
- return true;
- }
-
- InInstruction = true;
- visit(I); // Dispatch to one of the visit* methods...
- InInstruction = false;
-
- // 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()) {
- std::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()) {
- std::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) {
- unsigned StackSize = ECStack.size();
- // Step into the function...
- if (executeInstruction()) {
- // Hit a breakpoint, print current instruction, then return to user...
- std::cout << "Breakpoint hit!\n";
- printCurrentInstruction();
- return;
- }
-
- // 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...
- else
- printCurrentInstruction();
-
- } else {
- // Normal instruction, just step...
- stepInstruction();
- }
-}
-
void Interpreter::run() {
- if (ECStack.empty()) {
- std::cout << "Error: no program running, cannot run!\n";
- return;
- }
-
- bool HitBreakpoint = false;
- while (!ECStack.empty() && !HitBreakpoint) {
- // Run an instruction...
- HitBreakpoint = executeInstruction();
- }
-
- if (HitBreakpoint)
- std::cout << "Breakpoint hit!\n";
+ while (!ECStack.empty()) {
+ // Interpret a single instruction & increment the "PC".
+ ExecutionContext &SF = ECStack.back(); // Current stack frame
+ Instruction &I = *SF.CurInst++; // Increment before execute
- // Print the next instruction to execute...
- printCurrentInstruction();
-}
-
-void Interpreter::finish() {
- if (ECStack.empty()) {
- std::cout << "Error: no program running, cannot run!\n";
- return;
- }
+ // Track the number of dynamic instructions executed.
+ ++NumDynamicInsts;
- unsigned StackSize = ECStack.size();
- bool HitBreakpoint = false;
- while (ECStack.size() >= StackSize && !HitBreakpoint) {
- // Run an instruction...
- HitBreakpoint = executeInstruction();
+ DOUT << "About to interpret: " << I;
+ visit(I); // Dispatch to one of the visit* methods...
}
-
- if (HitBreakpoint)
- std::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()) {
- if (ECStack.back().CurBB->begin() == ECStack.back().CurInst) // print label
- WriteAsOperand(std::cout, ECStack.back().CurBB) << ":\n";
-
- Instruction &I = *ECStack.back().CurInst;
- InstNumber *IN = (InstNumber*)I.getAnnotation(SlotNumberAID);
- assert(IN && "Instruction has no numbering annotation!");
- std::cout << "#" << IN->InstNum << I;
- }
-}
-
-void Interpreter::printValue(const Type *Ty, GenericValue V) {
- switch (Ty->getPrimitiveID()) {
- case Type::BoolTyID: std::cout << (V.BoolVal?"true":"false"); break;
- case Type::SByteTyID:
- std::cout << (int)V.SByteVal << " '" << V.SByteVal << "'"; break;
- case Type::UByteTyID:
- std::cout << (unsigned)V.UByteVal << " '" << V.UByteVal << "'"; break;
- case Type::ShortTyID: std::cout << V.ShortVal; break;
- case Type::UShortTyID: std::cout << V.UShortVal; break;
- case Type::IntTyID: std::cout << V.IntVal; break;
- case Type::UIntTyID: std::cout << V.UIntVal; break;
- case Type::LongTyID: std::cout << (long)V.LongVal; break;
- case Type::ULongTyID: std::cout << (unsigned long)V.ULongVal; break;
- case Type::FloatTyID: std::cout << V.FloatVal; break;
- case Type::DoubleTyID: std::cout << V.DoubleVal; break;
- case Type::PointerTyID:std::cout << (void*)GVTOP(V); break;
- default:
- std::cout << "- Don't know how to print value of this type!";
- break;
- }
-}
-
-void Interpreter::print(const Type *Ty, GenericValue V) {
- CW << Ty << " ";
- printValue(Ty, V);
-}
-
-void Interpreter::print(const std::string &Name) {
- Value *PickedVal = ChooseOneOption(Name, LookupMatchingNames(Name));
- if (!PickedVal) return;
-
- if (const Function *F = dyn_cast<Function>(PickedVal)) {
- CW << F; // Print the function
- } else if (const Type *Ty = dyn_cast<Type>(PickedVal)) {
- CW << "type %" << Name << " = " << Ty->getDescription() << "\n";
- } else if (const BasicBlock *BB = dyn_cast<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]));
- std::cout << "\n";
- }
-}
-
-void Interpreter::infoValue(const std::string &Name) {
- Value *PickedVal = ChooseOneOption(Name, LookupMatchingNames(Name));
- if (!PickedVal) return;
-
- std::cout << "Value: ";
- print(PickedVal->getType(),
- getOperandValue(PickedVal, ECStack[CurFrame]));
- std::cout << "\n";
- printOperandInfo(PickedVal, ECStack[CurFrame]);
-}
-
-// printStackFrame - Print information about the specified stack frame, or -1
-// for the default one.
-//
-void Interpreter::printStackFrame(int FrameNo) {
- if (FrameNo == -1) FrameNo = CurFrame;
- Function *F = ECStack[FrameNo].CurFunction;
- const Type *RetTy = F->getReturnType();
-
- CW << ((FrameNo == CurFrame) ? '>' : '-') << "#" << FrameNo << ". "
- << (Value*)RetTy << " \"" << F->getName() << "\"(";
-
- unsigned i = 0;
- for (Function::aiterator I = F->abegin(), E = F->aend(); I != E; ++I, ++i) {
- if (i != 0) std::cout << ", ";
- CW << *I << "=";
-
- printValue(I->getType(), getOperandValue(I, ECStack[FrameNo]));
- }
-
- std::cout << ")\n";
-
- if (FrameNo != int(ECStack.size()-1)) {
- BasicBlock::iterator I = ECStack[FrameNo].CurInst;
- CW << --I;
- } else {
- CW << *ECStack[FrameNo].CurInst;
- }
-}
-