#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/Debug.h"
-#include <cmath> // For fmod
+#include "llvm/Support/MathExtras.h"
+#include <cmath>
using namespace llvm;
-namespace {
- Statistic<> NumDynamicInsts("lli", "Number of dynamic instructions executed");
-
- Interpreter *TheEE = 0;
-}
+STATISTIC(NumDynamicInsts, "Number of dynamic instructions executed");
+static Interpreter *TheEE = 0;
//===----------------------------------------------------------------------===//
const Type *Ty);
static GenericValue executeMulInst(GenericValue Src1, GenericValue Src2,
const Type *Ty);
-static GenericValue executeRemInst(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 executeXorInst(GenericValue Src1, GenericValue Src2,
const Type *Ty);
-static GenericValue executeSetEQInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty);
-static GenericValue executeSetNEInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty);
-static GenericValue executeSetLTInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty);
-static GenericValue executeSetGTInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty);
-static GenericValue executeSetLEInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty);
-static GenericValue executeSetGEInst(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 executeShrInst(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::Cast:
- return executeCastOperation(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::Trunc:
+ return executeTruncInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::ZExt:
+ return executeZExtInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::SExt:
+ return executeSExtInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::FPTrunc:
+ return executeFPTruncInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::FPExt:
+ return executeFPExtInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::UIToFP:
+ return executeUIToFPInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::SIToFP:
+ return executeSIToFPInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::FPToUI:
+ return executeFPToUIInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::FPToSI:
+ return executeFPToSIInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::PtrToInt:
+ return executePtrToIntInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::IntToPtr:
+ return executeIntToPtrInst(CE->getOperand(0), CE->getType(), SF);
+ case Instruction::BitCast:
+ return executeBitCastInst(CE->getOperand(0), CE->getType(), SF);
case Instruction::GetElementPtr:
return executeGEPOperation(CE->getOperand(0), gep_type_begin(CE),
gep_type_end(CE), SF);
return executeXorInst(getOperandValue(CE->getOperand(0), SF),
getOperandValue(CE->getOperand(1), SF),
CE->getOperand(0)->getType());
- case Instruction::SetEQ:
- return executeSetEQInst(getOperandValue(CE->getOperand(0), SF),
- getOperandValue(CE->getOperand(1), SF),
- CE->getOperand(0)->getType());
- case Instruction::SetNE:
- return executeSetNEInst(getOperandValue(CE->getOperand(0), SF),
- getOperandValue(CE->getOperand(1), SF),
- CE->getOperand(0)->getType());
- case Instruction::SetLE:
- return executeSetLEInst(getOperandValue(CE->getOperand(0), SF),
- getOperandValue(CE->getOperand(1), SF),
- CE->getOperand(0)->getType());
- case Instruction::SetGE:
- return executeSetGEInst(getOperandValue(CE->getOperand(0), SF),
- getOperandValue(CE->getOperand(1), SF),
- CE->getOperand(0)->getType());
- case Instruction::SetLT:
- return executeSetLTInst(getOperandValue(CE->getOperand(0), SF),
- getOperandValue(CE->getOperand(1), SF),
- CE->getOperand(0)->getType());
- case Instruction::SetGT:
- return executeSetGTInst(getOperandValue(CE->getOperand(0), SF),
- getOperandValue(CE->getOperand(1), SF),
- CE->getOperand(0)->getType());
- case Instruction::Shl:
- return executeShlInst(getOperandValue(CE->getOperand(0), SF),
+ 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::Shr:
- return executeShrInst(getOperandValue(CE->getOperand(0), SF),
+ 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:
- std::cerr << "Unhandled ConstantExpr: " << *CE << "\n";
+ cerr << "Unhandled ConstantExpr: " << *CE << "\n";
abort();
return GenericValue();
}
#define IMPLEMENT_BINARY_OPERATOR(OP, TY) \
case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.TY##Val; break
+#define IMPLEMENT_INTEGER_BINOP(OP, TY) \
+ case Type::IntegerTyID: { \
+ unsigned BitWidth = cast<IntegerType>(TY)->getBitWidth(); \
+ if (BitWidth == 1) \
+ Dest.Int1Val = Src1.Int1Val OP Src2.Int1Val; \
+ else if (BitWidth <= 8) \
+ Dest.Int8Val = Src1.Int8Val OP Src2.Int8Val; \
+ else if (BitWidth <= 16) \
+ Dest.Int16Val = Src1.Int16Val OP Src2.Int16Val; \
+ else if (BitWidth <= 32) \
+ Dest.Int32Val = Src1.Int32Val OP Src2.Int32Val; \
+ else if (BitWidth <= 64) \
+ Dest.Int64Val = Src1.Int64Val OP Src2.Int64Val; \
+ else \
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n"; \
+ maskToBitWidth(Dest, BitWidth); \
+ break; \
+ }
+
+#define IMPLEMENT_SIGNED_BINOP(OP, TY) \
+ if (const IntegerType *ITy = dyn_cast<IntegerType>(TY)) { \
+ unsigned BitWidth = ITy->getBitWidth(); \
+ if (BitWidth <= 8) \
+ Dest.Int8Val = ((int8_t)Src1.Int8Val) OP ((int8_t)Src2.Int8Val); \
+ else if (BitWidth <= 16) \
+ Dest.Int16Val = ((int16_t)Src1.Int16Val) OP ((int16_t)Src2.Int16Val); \
+ else if (BitWidth <= 32) \
+ Dest.Int32Val = ((int32_t)Src1.Int32Val) OP ((int32_t)Src2.Int32Val); \
+ else if (BitWidth <= 64) \
+ Dest.Int64Val = ((int64_t)Src1.Int64Val) OP ((int64_t)Src2.Int64Val); \
+ else { \
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n"; \
+ abort(); \
+ } \
+ maskToBitWidth(Dest, BitWidth); \
+ } else { \
+ cerr << "Unhandled type for " #OP " operator: " << *Ty << "\n"; \
+ abort(); \
+ }
+
+#define IMPLEMENT_UNSIGNED_BINOP(OP, TY) \
+ if (const IntegerType *ITy = dyn_cast<IntegerType>(TY)) { \
+ unsigned BitWidth = ITy->getBitWidth(); \
+ if (BitWidth <= 8) \
+ Dest.Int8Val = ((uint8_t)Src1.Int8Val) OP ((uint8_t)Src2.Int8Val); \
+ else if (BitWidth <= 16) \
+ Dest.Int16Val = ((uint16_t)Src1.Int16Val) OP ((uint16_t)Src2.Int16Val); \
+ else if (BitWidth <= 32) \
+ Dest.Int32Val = ((uint32_t)Src1.Int32Val) OP ((uint32_t)Src2.Int32Val); \
+ else if (BitWidth <= 64) \
+ Dest.Int64Val = ((uint64_t)Src1.Int64Val) OP ((uint64_t)Src2.Int64Val); \
+ else { \
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n"; \
+ abort(); \
+ } \
+ maskToBitWidth(Dest, BitWidth); \
+ } else { \
+ cerr << "Unhandled type for " #OP " operator: " << *Ty << "\n"; \
+ abort(); \
+ }
+
static GenericValue executeAddInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
- 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_INTEGER_BINOP(+, Ty);
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;
const Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
- 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_INTEGER_BINOP(-, Ty);
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;
const Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
- 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_INTEGER_BINOP(*, Ty);
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;
}
-#define IMPLEMENT_SIGNLESS_BINOP(OP, TY1, TY2) \
- case Type::TY2##TyID: IMPLEMENT_BINARY_OPERATOR(OP, TY1)
-
static GenericValue executeUDivInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
- switch (Ty->getTypeID()) {
- IMPLEMENT_SIGNLESS_BINOP(/, UByte, SByte);
- IMPLEMENT_SIGNLESS_BINOP(/, UShort, Short);
- IMPLEMENT_SIGNLESS_BINOP(/, UInt, Int);
- IMPLEMENT_SIGNLESS_BINOP(/, ULong, Long);
- default:
- std::cout << "Unhandled type for UDiv instruction: " << *Ty << "\n";
- abort();
- }
+ IMPLEMENT_UNSIGNED_BINOP(/,Ty)
return Dest;
}
static GenericValue executeSDivInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
- switch (Ty->getTypeID()) {
- IMPLEMENT_SIGNLESS_BINOP(/, SByte, UByte);
- IMPLEMENT_SIGNLESS_BINOP(/, Short, UShort);
- IMPLEMENT_SIGNLESS_BINOP(/, Int, UInt);
- IMPLEMENT_SIGNLESS_BINOP(/, Long, ULong);
- default:
- std::cout << "Unhandled type for SDiv instruction: " << *Ty << "\n";
- abort();
- }
+ IMPLEMENT_SIGNED_BINOP(/,Ty)
return Dest;
}
IMPLEMENT_BINARY_OPERATOR(/, Float);
IMPLEMENT_BINARY_OPERATOR(/, Double);
default:
- std::cout << "Unhandled type for Div instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for FDiv instruction: " << *Ty << "\n";
abort();
}
return Dest;
static GenericValue executeURemInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
- switch (Ty->getTypeID()) {
- IMPLEMENT_SIGNLESS_BINOP(%, UByte, SByte);
- IMPLEMENT_SIGNLESS_BINOP(%, UShort, Short);
- IMPLEMENT_SIGNLESS_BINOP(%, UInt, Int);
- IMPLEMENT_SIGNLESS_BINOP(%, ULong, Long);
- default:
- std::cout << "Unhandled type for URem instruction: " << *Ty << "\n";
- abort();
- }
+ IMPLEMENT_UNSIGNED_BINOP(%, Ty)
return Dest;
}
static GenericValue executeSRemInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
- switch (Ty->getTypeID()) {
- IMPLEMENT_SIGNLESS_BINOP(%, SByte, UByte);
- IMPLEMENT_SIGNLESS_BINOP(%, Short, UShort);
- IMPLEMENT_SIGNLESS_BINOP(%, Int, UInt);
- IMPLEMENT_SIGNLESS_BINOP(%, Long, ULong);
- default:
- std::cout << "Unhandled type for Rem instruction: " << *Ty << "\n";
- abort();
- }
+ IMPLEMENT_SIGNED_BINOP(%, Ty)
return Dest;
}
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) {
GenericValue Dest;
+ IMPLEMENT_UNSIGNED_BINOP(&, Ty)
+ return Dest;
+}
+
+static GenericValue executeOrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNSIGNED_BINOP(|, Ty)
+ return Dest;
+}
+
+static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNSIGNED_BINOP(^, Ty)
+ return Dest;
+}
+
+#define IMPLEMENT_SIGNED_ICMP(OP, TY) \
+ case Type::IntegerTyID: { \
+ unsigned BitWidth = cast<IntegerType>(TY)->getBitWidth(); \
+ if (BitWidth == 1) \
+ Dest.Int1Val = ((int8_t)Src1.Int1Val) OP ((int8_t)Src2.Int1Val); \
+ else if (BitWidth <= 8) \
+ Dest.Int1Val = ((int8_t)Src1.Int8Val) OP ((int8_t)Src2.Int8Val); \
+ else if (BitWidth <= 16) \
+ Dest.Int1Val = ((int16_t)Src1.Int16Val) OP ((int16_t)Src2.Int16Val); \
+ else if (BitWidth <= 32) \
+ Dest.Int1Val = ((int32_t)Src1.Int32Val) OP ((int32_t)Src2.Int32Val); \
+ else if (BitWidth <= 64) \
+ Dest.Int1Val = ((int64_t)Src1.Int64Val) OP ((int64_t)Src2.Int64Val); \
+ else { \
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n"; \
+ abort(); \
+ } \
+ maskToBitWidth(Dest, BitWidth); \
+ break; \
+ }
+
+#define IMPLEMENT_UNSIGNED_ICMP(OP, TY) \
+ case Type::IntegerTyID: { \
+ unsigned BitWidth = cast<IntegerType>(TY)->getBitWidth(); \
+ if (BitWidth == 1) \
+ Dest.Int1Val = ((uint8_t)Src1.Int1Val) OP ((uint8_t)Src2.Int1Val); \
+ else if (BitWidth <= 8) \
+ Dest.Int1Val = ((uint8_t)Src1.Int8Val) OP ((uint8_t)Src2.Int8Val); \
+ else if (BitWidth <= 16) \
+ Dest.Int1Val = ((uint16_t)Src1.Int16Val) OP ((uint16_t)Src2.Int16Val); \
+ else if (BitWidth <= 32) \
+ Dest.Int1Val = ((uint32_t)Src1.Int32Val) OP ((uint32_t)Src2.Int32Val); \
+ else if (BitWidth <= 64) \
+ Dest.Int1Val = ((uint64_t)Src1.Int64Val) OP ((uint64_t)Src2.Int64Val); \
+ else { \
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n"; \
+ abort(); \
+ } \
+ maskToBitWidth(Dest, BitWidth); \
+ 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_POINTER_ICMP(OP) \
+ case Type::PointerTyID: \
+ Dest.Int1Val = (void*)(intptr_t)Src1.PointerVal OP \
+ (void*)(intptr_t)Src2.PointerVal; break
+
+static GenericValue executeICMP_EQ(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
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_UNSIGNED_ICMP(==, Ty);
+ IMPLEMENT_POINTER_ICMP(==);
default:
- std::cout << "Unhandled type for And instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for ICMP_EQ predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeOrInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_NE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
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_UNSIGNED_ICMP(!=, Ty);
+ IMPLEMENT_POINTER_ICMP(!=);
default:
- std::cout << "Unhandled type for Or instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for ICMP_NE predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_ULT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
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_UNSIGNED_ICMP(<, Ty);
+ IMPLEMENT_POINTER_ICMP(<);
default:
- std::cout << "Unhandled type for Xor instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for ICMP_ULT predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-#define IMPLEMENT_SETCC(OP, TY) \
- case Type::TY##TyID: Dest.BoolVal = Src1.TY##Val OP Src2.TY##Val; break
+static GenericValue executeICMP_SLT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_SIGNED_ICMP(<, Ty);
+ IMPLEMENT_POINTER_ICMP(<);
+ default:
+ cerr << "Unhandled type for ICMP_SLT predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
-// 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) \
- case Type::PointerTyID: \
- Dest.BoolVal = (void*)(intptr_t)Src1.PointerVal OP \
- (void*)(intptr_t)Src2.PointerVal; break
+static GenericValue executeICMP_UGT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_UNSIGNED_ICMP(>, Ty);
+ IMPLEMENT_POINTER_ICMP(>);
+ default:
+ cerr << "Unhandled type for ICMP_UGT predicate: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
-static GenericValue executeSetEQInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_SGT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
- 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(==);
+ IMPLEMENT_SIGNED_ICMP(>, Ty);
+ IMPLEMENT_POINTER_ICMP(>);
default:
- std::cout << "Unhandled type for SetEQ instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for ICMP_SGT predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetNEInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeICMP_ULE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
- 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(!=);
+ IMPLEMENT_UNSIGNED_ICMP(<=, Ty);
+ IMPLEMENT_POINTER_ICMP(<=);
+ 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_SIGNED_ICMP(<=, Ty);
+ IMPLEMENT_POINTER_ICMP(<=);
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->getTypeID()) {
- 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(<=);
+ IMPLEMENT_UNSIGNED_ICMP(>=,Ty);
+ IMPLEMENT_POINTER_ICMP(>=);
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_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(>=);
+ IMPLEMENT_SIGNED_ICMP(>=, Ty);
+ IMPLEMENT_POINTER_ICMP(>=);
default:
- std::cout << "Unhandled type for SetGE instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for ICMP_SGE predicate: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetLTInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+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.Int1Val = Src1.TY##Val OP Src2.TY##Val; break
+
+static GenericValue executeFCMP_OEQ(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(==, Float);
+ IMPLEMENT_FCMP(==, Double);
+ default:
+ cerr << "Unhandled type for FCmp EQ instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_ONE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(!=, Float);
+ IMPLEMENT_FCMP(!=, Double);
+
+ default:
+ cerr << "Unhandled type for FCmp NE instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_OLE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
- 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(<);
+ IMPLEMENT_FCMP(<=, Float);
+ IMPLEMENT_FCMP(<=, Double);
default:
- std::cout << "Unhandled type for SetLT instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for FCmp LE instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
-static GenericValue executeSetGTInst(GenericValue Src1, GenericValue Src2,
+static GenericValue executeFCMP_OGE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(>=, Float);
+ IMPLEMENT_FCMP(>=, Double);
+ default:
+ cerr << "Unhandled type for FCmp GE instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_OLT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ switch (Ty->getTypeID()) {
+ IMPLEMENT_FCMP(<, Float);
+ IMPLEMENT_FCMP(<, Double);
+ default:
+ cerr << "Unhandled type for FCmp LT instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_OGT(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
- 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(>);
+ IMPLEMENT_FCMP(>, Float);
+ IMPLEMENT_FCMP(>, Double);
default:
- std::cout << "Unhandled type for SetGT instruction: " << *Ty << "\n";
+ cerr << "Unhandled type for FCmp GT instruction: " << *Ty << "\n";
abort();
}
return Dest;
}
+#define IMPLEMENT_UNORDERED(TY, X,Y) \
+ if (TY == Type::FloatTy) \
+ if (X.FloatVal != X.FloatVal || Y.FloatVal != Y.FloatVal) { \
+ Dest.Int1Val = true; \
+ return Dest; \
+ } \
+ else if (X.DoubleVal != X.DoubleVal || Y.DoubleVal != Y.DoubleVal) { \
+ Dest.Int1Val = true; \
+ return Dest; \
+ }
+
+
+static GenericValue executeFCMP_UEQ(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ return executeFCMP_OEQ(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_UNE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ return executeFCMP_ONE(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_ULE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ return executeFCMP_OLE(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_UGE(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ return executeFCMP_OGE(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_ULT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ return executeFCMP_OLT(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_UGT(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ return executeFCMP_OGT(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_ORD(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ if (Ty == Type::FloatTy)
+ Dest.Int1Val = (Src1.FloatVal == Src1.FloatVal &&
+ Src2.FloatVal == Src2.FloatVal);
+ else
+ Dest.Int1Val = (Src1.DoubleVal == Src1.DoubleVal &&
+ Src2.DoubleVal == Src2.DoubleVal);
+ return Dest;
+}
+
+static GenericValue executeFCMP_UNO(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ if (Ty == Type::FloatTy)
+ Dest.Int1Val = (Src1.FloatVal != Src1.FloatVal ||
+ Src2.FloatVal != Src2.FloatVal);
+ else
+ Dest.Int1Val = (Src1.DoubleVal != Src1.DoubleVal ||
+ Src2.DoubleVal != Src2.DoubleVal);
+ 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.Int1Val = false; break;
+ case FCmpInst::FCMP_TRUE: R.Int1Val = true; break;
+ case FCmpInst::FCMP_ORD: R = executeFCMP_ORD(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_UNO: R = executeFCMP_UNO(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_UEQ: R = executeFCMP_UEQ(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OEQ: R = executeFCMP_OEQ(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_UNE: R = executeFCMP_UNE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_ONE: R = executeFCMP_ONE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_ULT: R = executeFCMP_ULT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OLT: R = executeFCMP_OLT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_UGT: R = executeFCMP_UGT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OGT: R = executeFCMP_OGT(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_ULE: R = executeFCMP_ULE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OLE: R = executeFCMP_OLE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_UGE: R = executeFCMP_UGE(Src1, Src2, Ty); break;
+ case FCmpInst::FCMP_OGE: R = executeFCMP_OGE(Src1, Src2, Ty); break;
+ 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_ORD(Src1, Src2, Ty);
+ case FCmpInst::FCMP_UNO: return executeFCMP_UNO(Src1, Src2, Ty);
+ case FCmpInst::FCMP_OEQ: return executeFCMP_OEQ(Src1, Src2, Ty);
+ case FCmpInst::FCMP_UEQ: return executeFCMP_UEQ(Src1, Src2, Ty);
+ case FCmpInst::FCMP_ONE: return executeFCMP_ONE(Src1, Src2, Ty);
+ case FCmpInst::FCMP_UNE: return executeFCMP_UNE(Src1, Src2, Ty);
+ case FCmpInst::FCMP_OLT: return executeFCMP_OLT(Src1, Src2, Ty);
+ case FCmpInst::FCMP_ULT: return executeFCMP_ULT(Src1, Src2, Ty);
+ case FCmpInst::FCMP_OGT: return executeFCMP_OGT(Src1, Src2, Ty);
+ case FCmpInst::FCMP_UGT: return executeFCMP_UGT(Src1, Src2, Ty);
+ case FCmpInst::FCMP_OLE: return executeFCMP_OLE(Src1, Src2, Ty);
+ case FCmpInst::FCMP_ULE: return executeFCMP_ULE(Src1, Src2, Ty);
+ case FCmpInst::FCMP_OGE: return executeFCMP_OGE(Src1, Src2, Ty);
+ case FCmpInst::FCMP_UGE: return executeFCMP_UGE(Src1, Src2, Ty);
+ case FCmpInst::FCMP_FALSE: {
+ GenericValue Result;
+ Result.Int1Val = false;
+ return Result;
+ }
+ case FCmpInst::FCMP_TRUE: {
+ GenericValue Result;
+ Result.Int1Val = 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::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();
}
static GenericValue executeSelectInst(GenericValue Src1, GenericValue Src2,
GenericValue Src3) {
- return Src1.BoolVal ? Src2 : Src3;
+ return Src1.Int1Val ? Src2 : Src3;
}
void Interpreter::visitSelectInst(SelectInst &I) {
// the stack before interpreting atexit handlers.
ECStack.clear ();
runAtExitHandlers ();
- exit (GV.IntVal);
+ exit (GV.Int32Val);
}
/// Pop the last stack frame off of ECStack and then copy the result
ECStack.pop_back();
if (ECStack.empty()) { // Finished main. Put result into exit code...
- if (RetTy && RetTy->isIntegral()) { // Nonvoid return type?
+ if (RetTy && RetTy->isInteger()) { // Nonvoid return type?
ExitValue = Result; // Capture the exit value of the program
} else {
memset(&ExitValue, 0, sizeof(ExitValue));
}
void Interpreter::visitUnreachableInst(UnreachableInst &I) {
- std::cerr << "ERROR: Program executed an 'unreachable' instruction!\n";
+ cerr << "ERROR: Program executed an 'unreachable' instruction!\n";
abort();
}
Dest = I.getSuccessor(0); // Uncond branches have a fixed dest...
if (!I.isUnconditional()) {
Value *Cond = I.getCondition();
- if (getOperandValue(Cond, SF).BoolVal == 0) // If false cond...
+ if (getOperandValue(Cond, SF).Int1Val == 0) // If false cond...
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).Int1Val) {
Dest = cast<BasicBlock>(I.getOperand(i+1));
break;
}
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...
void *Memory = malloc(NumElements * (size_t)TD.getTypeSize(Ty));
// Get the index number for the array... which must be long type...
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::SByteTyID: Idx = IdxGV.SByteVal; break;
- case Type::ShortTyID: Idx = IdxGV.ShortVal; break;
- case Type::IntTyID: Idx = IdxGV.IntVal; break;
- case Type::LongTyID: Idx = IdxGV.LongVal; break;
- case Type::UByteTyID: Idx = IdxGV.UByteVal; break;
- case Type::UShortTyID: Idx = IdxGV.UShortVal; break;
- case Type::UIntTyID: Idx = IdxGV.UIntVal; break;
- case Type::ULongTyID: Idx = IdxGV.ULongVal; break;
- }
+ int64_t Idx;
+ unsigned BitWidth =
+ cast<IntegerType>(I.getOperand()->getType())->getBitWidth();
+ if (BitWidth == 32)
+ Idx = (int64_t)(int32_t)IdxGV.Int32Val;
+ else if (BitWidth == 64)
+ Idx = (int64_t)IdxGV.Int64Val;
+ else
+ assert(0 && "Invalid index type for getelementptr");
Total += PointerTy(TD.getTypeSize(ST->getElementType())*Idx);
}
}
// this by zero or sign extending the value as appropriate according to the
// source type.
const Type *Ty = V->getType();
- if (Ty->isIntegral() && Ty->getPrimitiveSize() < 4) {
- 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;
- else if (Ty == Type::BoolTy)
- ArgVals.back().UIntVal = ArgVals.back().BoolVal;
- else
- assert(0 && "Unknown type!");
+ if (Ty->isInteger()) {
+ if (Ty->getPrimitiveSizeInBits() == 1)
+ ArgVals.back().Int32Val = ArgVals.back().Int1Val;
+ else if (Ty->getPrimitiveSizeInBits() <= 8)
+ ArgVals.back().Int32Val = ArgVals.back().Int8Val;
+ else if (Ty->getPrimitiveSizeInBits() <= 16)
+ ArgVals.back().Int32Val = ArgVals.back().Int16Val;
}
}
callFunction((Function*)GVTOP(SRC), ArgVals);
}
-#define IMPLEMENT_SHIFT(OP, TY) \
- case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.UByteVal; break
-
static GenericValue executeShlInst(GenericValue Src1, GenericValue Src2,
const Type *Ty) {
GenericValue Dest;
- switch (Ty->getTypeID()) {
- 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";
+ if (const IntegerType *ITy = cast<IntegerType>(Ty)) {
+ unsigned BitWidth = ITy->getBitWidth();
+ if (BitWidth <= 8)
+ Dest.Int8Val = ((uint8_t)Src1.Int8Val) << ((uint32_t)Src2.Int8Val);
+ else if (BitWidth <= 16)
+ Dest.Int16Val = ((uint16_t)Src1.Int16Val) << ((uint32_t)Src2.Int8Val);
+ else if (BitWidth <= 32)
+ Dest.Int32Val = ((uint32_t)Src1.Int32Val) << ((uint32_t)Src2.Int8Val);
+ else if (BitWidth <= 64)
+ Dest.Int64Val = ((uint64_t)Src1.Int64Val) << ((uint32_t)Src2.Int8Val);
+ else {
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n";
+ abort();
+ }
+ maskToBitWidth(Dest, BitWidth);
+ } else {
+ cerr << "Unhandled type for Shl instruction: " << *Ty << "\n";
+ abort();
}
return Dest;
}
-static GenericValue executeShrInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeLShrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
GenericValue Dest;
- switch (Ty->getTypeID()) {
- 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";
+ if (const IntegerType *ITy = cast<IntegerType>(Ty)) {
+ unsigned BitWidth = ITy->getBitWidth();
+ if (BitWidth <= 8)
+ Dest.Int8Val = ((uint8_t)Src1.Int8Val) >> ((uint32_t)Src2.Int8Val);
+ else if (BitWidth <= 16)
+ Dest.Int16Val = ((uint16_t)Src1.Int16Val) >> ((uint32_t)Src2.Int8Val);
+ else if (BitWidth <= 32)
+ Dest.Int32Val = ((uint32_t)Src1.Int32Val) >> ((uint32_t)Src2.Int8Val);
+ else if (BitWidth <= 64)
+ Dest.Int64Val = ((uint64_t)Src1.Int64Val) >> ((uint32_t)Src2.Int8Val);
+ else {
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n";
+ abort();
+ }
+ maskToBitWidth(Dest, BitWidth);
+ } else {
+ cerr << "Unhandled type for LShr instruction: " << *Ty << "\n";
+ abort();
+ }
+ return Dest;
+}
+
+static GenericValue executeAShrInst(GenericValue Src1, GenericValue Src2,
+ const Type *Ty) {
+ GenericValue Dest;
+ if (const IntegerType *ITy = cast<IntegerType>(Ty)) {
+ unsigned BitWidth = ITy->getBitWidth();
+ if (BitWidth <= 8)
+ Dest.Int8Val = ((int8_t)Src1.Int8Val) >> ((int32_t)Src2.Int8Val);
+ else if (BitWidth <= 16)
+ Dest.Int16Val = ((int16_t)Src1.Int16Val) >> ((int32_t)Src2.Int8Val);
+ else if (BitWidth <= 32)
+ Dest.Int32Val = ((int32_t)Src1.Int32Val) >> ((int32_t)Src2.Int8Val);
+ else if (BitWidth <= 64)
+ Dest.Int64Val = ((int64_t)Src1.Int64Val) >> ((int32_t)Src2.Int8Val);
+ else {
+ cerr << "Integer types > 64 bits not supported: " << *Ty << "\n"; \
+ abort();
+ }
+ maskToBitWidth(Dest, BitWidth);
+ } else {
+ cerr << "Unhandled type for AShr instruction: " << *Ty << "\n";
abort();
}
return Dest;
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 = executeShrInst (Src1, Src2, Ty);
+ Dest = executeLShrInst (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->getTypeID()) { \
- 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"; \
- 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()
-
-GenericValue Interpreter::executeCastOperation(Value *SrcVal, const Type *Ty,
- ExecutionContext &SF) {
+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 INTEGER_ASSIGN(DEST, BITWIDTH, VAL) \
+ { \
+ uint64_t Mask = (1ull << BITWIDTH) - 1; \
+ if (BITWIDTH == 1) { \
+ Dest.Int1Val = (bool) (VAL & Mask); \
+ } else if (BITWIDTH <= 8) { \
+ Dest.Int8Val = (uint8_t) (VAL & Mask); \
+ } else if (BITWIDTH <= 16) { \
+ Dest.Int16Val = (uint16_t) (VAL & Mask); \
+ } else if (BITWIDTH <= 32) { \
+ Dest.Int32Val = (uint32_t) (VAL & Mask); \
+ } else \
+ Dest.Int64Val = (uint64_t) (VAL & Mask); \
+ }
+
+GenericValue Interpreter::executeTruncInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
const Type *SrcTy = SrcVal->getType();
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *DITy = cast<IntegerType>(DstTy);
+ const IntegerType *SITy = cast<IntegerType>(SrcTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ unsigned SBitWidth = SITy->getBitWidth();
+ assert(SBitWidth <= 64 && DBitWidth <= 64 &&
+ "Integer types > 64 bits not supported");
+ assert(SBitWidth > DBitWidth && "Invalid truncate");
+
+ // Mask the source value to its actual bit width. This ensures that any
+ // high order bits are cleared.
+ uint64_t Mask = (1ULL << DBitWidth) - 1;
+ uint64_t MaskedVal = 0;
+ if (SBitWidth <= 8)
+ MaskedVal = Src.Int8Val & Mask;
+ else if (SBitWidth <= 16)
+ MaskedVal = Src.Int16Val & Mask;
+ else if (SBitWidth <= 32)
+ MaskedVal = Src.Int32Val & Mask;
+ else
+ MaskedVal = Src.Int64Val & Mask;
+
+ INTEGER_ASSIGN(Dest, DBitWidth, MaskedVal);
+ return Dest;
+}
- switch (Ty->getTypeID()) {
- 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();
- }
+GenericValue Interpreter::executeSExtInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *DITy = cast<IntegerType>(DstTy);
+ const IntegerType *SITy = cast<IntegerType>(SrcTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ unsigned SBitWidth = SITy->getBitWidth();
+ assert(SBitWidth <= 64 && DBitWidth <= 64 &&
+ "Integer types > 64 bits not supported");
+ assert(SBitWidth < DBitWidth && "Invalid sign extend");
+
+ // Normalize to a 64-bit value.
+ uint64_t Normalized = 0;
+ if (SBitWidth <= 8)
+ Normalized = Src.Int8Val;
+ else if (SBitWidth <= 16)
+ Normalized = Src.Int16Val;
+ else if (SBitWidth <= 32)
+ Normalized = Src.Int32Val;
+ else
+ Normalized = Src.Int64Val;
+
+ // Now do the bit-accurate sign extension manually.
+ bool isSigned = (Normalized & (1 << (SBitWidth-1))) != 0;
+ if (isSigned)
+ Normalized |= ~SITy->getBitMask();
+
+ // Now that we have a sign extended value, assign it to the destination
+ INTEGER_ASSIGN(Dest, DBitWidth, Normalized);
+ return Dest;
+}
+GenericValue Interpreter::executeZExtInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *DITy = cast<IntegerType>(DstTy);
+ const IntegerType *SITy = cast<IntegerType>(SrcTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ unsigned SBitWidth = SITy->getBitWidth();
+ assert(SBitWidth <= 64 && DBitWidth <= 64 &&
+ "Integer types > 64 bits not supported");
+ assert(SBitWidth < DBitWidth && "Invalid sign extend");
+ uint64_t Extended = 0;
+ if (SBitWidth == 1)
+ // For sign extension from bool, we must extend the source bits.
+ Extended = (uint64_t) (Src.Int1Val & 1);
+ else if (SBitWidth <= 8)
+ Extended = (uint64_t) (uint8_t)Src.Int8Val;
+ else if (SBitWidth <= 16)
+ Extended = (uint64_t) (uint16_t)Src.Int16Val;
+ else if (SBitWidth <= 32)
+ Extended = (uint64_t) (uint32_t)Src.Int32Val;
+ else
+ Extended = (uint64_t) Src.Int64Val;
+
+ // Now that we have a sign extended value, assign it to the destination
+ INTEGER_ASSIGN(Dest, DBitWidth, Extended);
return Dest;
}
-void Interpreter::visitCastInst(CastInst &I) {
+GenericValue Interpreter::executeFPTruncInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(SrcTy == Type::DoubleTy && DstTy == Type::FloatTy &&
+ "Invalid FPTrunc instruction");
+ Dest.FloatVal = (float) Src.DoubleVal;
+ return Dest;
+}
+
+GenericValue Interpreter::executeFPExtInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(SrcTy == Type::FloatTy && DstTy == Type::DoubleTy &&
+ "Invalid FPTrunc instruction");
+ Dest.DoubleVal = (double) Src.FloatVal;
+ return Dest;
+}
+
+GenericValue Interpreter::executeFPToUIInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *DITy = cast<IntegerType>(DstTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ assert(DBitWidth <= 64 && "Integer types > 64 bits not supported");
+ assert(SrcTy->isFloatingPoint() && "Invalid FPToUI instruction");
+ uint64_t Converted = 0;
+ if (SrcTy->getTypeID() == Type::FloatTyID)
+ Converted = (uint64_t) Src.FloatVal;
+ else
+ Converted = (uint64_t) Src.DoubleVal;
+
+ INTEGER_ASSIGN(Dest, DBitWidth, Converted);
+ return Dest;
+}
+
+GenericValue Interpreter::executeFPToSIInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *DITy = cast<IntegerType>(DstTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ assert(DBitWidth <= 64 && "Integer types > 64 bits not supported");
+ assert(SrcTy->isFloatingPoint() && "Invalid FPToSI instruction");
+ int64_t Converted = 0;
+ if (SrcTy->getTypeID() == Type::FloatTyID)
+ Converted = (int64_t) Src.FloatVal;
+ else
+ Converted = (int64_t) Src.DoubleVal;
+
+ INTEGER_ASSIGN(Dest, DBitWidth, Converted);
+ return Dest;
+}
+
+GenericValue Interpreter::executeUIToFPInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *SITy = cast<IntegerType>(SrcTy);
+ unsigned SBitWidth = SITy->getBitWidth();
+ assert(SBitWidth <= 64 && "Integer types > 64 bits not supported");
+ assert(DstTy->isFloatingPoint() && "Invalid UIToFP instruction");
+ uint64_t Converted = 0;
+ if (SBitWidth == 1)
+ Converted = (uint64_t) Src.Int1Val;
+ else if (SBitWidth <= 8)
+ Converted = (uint64_t) Src.Int8Val;
+ else if (SBitWidth <= 16)
+ Converted = (uint64_t) Src.Int16Val;
+ else if (SBitWidth <= 32)
+ Converted = (uint64_t) Src.Int32Val;
+ else
+ Converted = (uint64_t) Src.Int64Val;
+
+ if (DstTy->getTypeID() == Type::FloatTyID)
+ Dest.FloatVal = (float) Converted;
+ else
+ Dest.DoubleVal = (double) Converted;
+ return Dest;
+}
+
+GenericValue Interpreter::executeSIToFPInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *SITy = cast<IntegerType>(SrcTy);
+ unsigned SBitWidth = SITy->getBitWidth();
+ assert(SBitWidth <= 64 && "Integer types > 64 bits not supported");
+ assert(DstTy->isFloatingPoint() && "Invalid UIToFP instruction");
+ int64_t Converted = 0;
+ if (SBitWidth == 1)
+ Converted = 0LL - Src.Int1Val;
+ else if (SBitWidth <= 8)
+ Converted = (int64_t) (int8_t)Src.Int8Val;
+ else if (SBitWidth <= 16)
+ Converted = (int64_t) (int16_t)Src.Int16Val;
+ else if (SBitWidth <= 32)
+ Converted = (int64_t) (int32_t)Src.Int32Val;
+ else
+ Converted = (int64_t) Src.Int64Val;
+
+ if (DstTy->getTypeID() == Type::FloatTyID)
+ Dest.FloatVal = (float) Converted;
+ else
+ Dest.DoubleVal = (double) Converted;
+ return Dest;
+}
+
+GenericValue Interpreter::executePtrToIntInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *DITy = cast<IntegerType>(DstTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ assert(DBitWidth <= 64 && "Integer types > 64 bits not supported");
+ assert(isa<PointerType>(SrcTy) && "Invalid PtrToInt instruction");
+ INTEGER_ASSIGN(Dest, DBitWidth, (intptr_t) Src.PointerVal);
+ return Dest;
+}
+
+GenericValue Interpreter::executeIntToPtrInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ const IntegerType *SITy = cast<IntegerType>(SrcTy);
+ unsigned SBitWidth = SITy->getBitWidth();
+ assert(SBitWidth <= 64 && "Integer types > 64 bits not supported");
+ assert(isa<PointerType>(DstTy) && "Invalid PtrToInt instruction");
+ uint64_t Converted = 0;
+ if (SBitWidth == 1)
+ Converted = (uint64_t) Src.Int1Val;
+ else if (SBitWidth <= 8)
+ Converted = (uint64_t) Src.Int8Val;
+ else if (SBitWidth <= 16)
+ Converted = (uint64_t) Src.Int16Val;
+ else if (SBitWidth <= 32)
+ Converted = (uint64_t) Src.Int32Val;
+ else
+ Converted = (uint64_t) Src.Int64Val;
+
+ Dest.PointerVal = (PointerTy) Converted;
+ return Dest;
+}
+
+GenericValue Interpreter::executeBitCastInst(Value *SrcVal, const Type *DstTy,
+ ExecutionContext &SF) {
+
+ const Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ if (isa<PointerType>(DstTy)) {
+ assert(isa<PointerType>(SrcTy) && "Invalid BitCast");
+ Dest.PointerVal = Src.PointerVal;
+ } else if (DstTy->isInteger()) {
+ const IntegerType *DITy = cast<IntegerType>(DstTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ if (SrcTy == Type::FloatTy) {
+ Dest.Int32Val = FloatToBits(Src.FloatVal);
+ } else if (SrcTy == Type::DoubleTy) {
+ Dest.Int64Val = DoubleToBits(Src.DoubleVal);
+ } else if (SrcTy->isInteger()) {
+ const IntegerType *SITy = cast<IntegerType>(SrcTy);
+ unsigned SBitWidth = SITy->getBitWidth();
+ assert(SBitWidth <= 64 && "Integer types > 64 bits not supported");
+ assert(SBitWidth == DBitWidth && "Invalid BitCast");
+ if (SBitWidth == 1)
+ Dest.Int1Val = Src.Int1Val;
+ else if (SBitWidth <= 8)
+ Dest.Int8Val = Src.Int8Val;
+ else if (SBitWidth <= 16)
+ Dest.Int16Val = Src.Int16Val;
+ else if (SBitWidth <= 32)
+ Dest.Int32Val = Src.Int32Val;
+ else
+ Dest.Int64Val = Src.Int64Val;
+ maskToBitWidth(Dest, DBitWidth);
+ } else
+ assert(0 && "Invalid BitCast");
+ } else if (DstTy == Type::FloatTy) {
+ if (SrcTy->isInteger())
+ Dest.FloatVal = BitsToFloat(Src.Int32Val);
+ else
+ Dest.FloatVal = Src.FloatVal;
+ } else if (DstTy == Type::DoubleTy) {
+ if (SrcTy->isInteger())
+ Dest.DoubleVal = BitsToDouble(Src.Int64Val);
+ else
+ Dest.DoubleVal = Src.DoubleVal;
+ } else
+ assert(0 && "Invalid Bitcast");
+
+ return Dest;
+}
+
+void Interpreter::visitTruncInst(TruncInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeTruncInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitSExtInst(SExtInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeSExtInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitZExtInst(ZExtInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeZExtInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitFPTruncInst(FPTruncInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeFPTruncInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitFPExtInst(FPExtInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeFPExtInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitUIToFPInst(UIToFPInst &I) {
ExecutionContext &SF = ECStack.back();
- SetValue(&I, executeCastOperation(I.getOperand(0), I.getType(), SF), SF);
+ SetValue(&I, executeUIToFPInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitSIToFPInst(SIToFPInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeSIToFPInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitFPToUIInst(FPToUIInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeFPToUIInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitFPToSIInst(FPToSIInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeFPToSIInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitPtrToIntInst(PtrToIntInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executePtrToIntInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitIntToPtrInst(IntToPtrInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeIntToPtrInst(I.getOperand(0), I.getType(), SF), SF);
+}
+
+void Interpreter::visitBitCastInst(BitCastInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ SetValue(&I, executeBitCastInst(I.getOperand(0), I.getType(), SF), SF);
}
#define IMPLEMENT_VAARG(TY) \
.VarArgs[VAList.UIntPairVal.second];
const Type *Ty = I.getType();
switch (Ty->getTypeID()) {
- IMPLEMENT_VAARG(UByte);
- IMPLEMENT_VAARG(SByte);
- IMPLEMENT_VAARG(UShort);
- IMPLEMENT_VAARG(Short);
- IMPLEMENT_VAARG(UInt);
- IMPLEMENT_VAARG(Int);
- IMPLEMENT_VAARG(ULong);
- IMPLEMENT_VAARG(Long);
+ case Type::IntegerTyID: {
+ unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
+ if (BitWidth == 1)
+ Dest.Int1Val = Src.Int1Val;
+ else if (BitWidth <= 8)
+ Dest.Int8Val = Src.Int8Val;
+ else if (BitWidth <= 16)
+ Dest.Int16Val = Src.Int16Val;
+ else if (BitWidth <= 32)
+ Dest.Int32Val = Src.Int32Val;
+ else if (BitWidth <= 64)
+ Dest.Int64Val = Src.Int64Val;
+ else
+ assert("Integer types > 64 bits not supported");
+ maskToBitWidth(Dest, BitWidth);
+ }
IMPLEMENT_VAARG(Pointer);
IMPLEMENT_VAARG(Float);
IMPLEMENT_VAARG(Double);
- IMPLEMENT_VAARG(Bool);
default:
- std::cout << "Unhandled dest type for vaarg instruction: " << *Ty << "\n";
+ cerr << "Unhandled dest type for vaarg instruction: " << *Ty << "\n";
abort();
}
// Track the number of dynamic instructions executed.
++NumDynamicInsts;
- DEBUG(std::cerr << "About to interpret: " << I);
+ DOUT << "About to interpret: " << I;
visit(I); // Dispatch to one of the visit* methods...
}
}