//
// 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 is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#define DEBUG_TYPE "interpreter"
#include "Interpreter.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Instructions.h"
-#include "llvm/CodeGen/IntrinsicLowering.h"
-#include "llvm/Support/GetElementPtrTypeIterator.h"
+#include "llvm/ADT/APInt.h"
#include "llvm/ADT/Statistic.h"
+#include "llvm/CodeGen/IntrinsicLowering.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/GetElementPtrTypeIterator.h"
+#include "llvm/Support/MathExtras.h"
+#include <algorithm>
#include <cmath>
using namespace llvm;
STATISTIC(NumDynamicInsts, "Number of dynamic instructions executed");
-static Interpreter *TheEE = 0;
+static cl::opt<bool> PrintVolatile("interpreter-print-volatile", cl::Hidden,
+ cl::desc("make the interpreter print every volatile load and store"));
//===----------------------------------------------------------------------===//
-// Value Manipulation code
+// Various Helper Functions
//===----------------------------------------------------------------------===//
-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();
- }
-}
-
-GenericValue Interpreter::getOperandValue(Value *V, ExecutionContext &SF) {
- if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
- return getConstantExprValue(CE, SF);
- } else if (Constant *CPV = dyn_cast<Constant>(V)) {
- return getConstantValue(CPV);
- } else if (GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
- return PTOGV(getPointerToGlobal(GV));
- } else {
- return SF.Values[V];
- }
-}
-
static void SetValue(Value *V, GenericValue Val, ExecutionContext &SF) {
SF.Values[V] = Val;
}
-void Interpreter::initializeExecutionEngine() {
- TheEE = this;
-}
-
//===----------------------------------------------------------------------===//
// Binary Instruction Implementations
//===----------------------------------------------------------------------===//
#define IMPLEMENT_BINARY_OPERATOR(OP, TY) \
- case Type::TY##TyID: Dest.TY##Val = Src1.TY##Val OP Src2.TY##Val; break
+ 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) {
- GenericValue Dest;
+static void executeFAddInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
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:
- cerr << "Unhandled type for Add instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FAdd instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
- return Dest;
}
-static GenericValue executeSubInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
- GenericValue Dest;
+static void executeFSubInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
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:
- cerr << "Unhandled type for Sub instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FSub instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
- return Dest;
}
-static GenericValue executeMulInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
- GenericValue Dest;
+static void executeFMulInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
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:
- cerr << "Unhandled type for Mul instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FMul instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
- return Dest;
}
-#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->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;
+static void executeFDivInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
switch (Ty->getTypeID()) {
IMPLEMENT_BINARY_OPERATOR(/, Float);
IMPLEMENT_BINARY_OPERATOR(/, Double);
default:
- cerr << "Unhandled type for Div instruction: " << *Ty << "\n";
- abort();
- }
- return Dest;
-}
-
-static GenericValue executeURemInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
- GenericValue Dest;
- 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();
+ dbgs() << "Unhandled type for FDiv instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
- 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;
+static void executeFRemInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
switch (Ty->getTypeID()) {
case Type::FloatTyID:
Dest.FloatVal = fmod(Src1.FloatVal, Src2.FloatVal);
Dest.DoubleVal = fmod(Src1.DoubleVal, Src2.DoubleVal);
break;
default:
- cerr << "Unhandled type for Rem instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for Rem instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
- return Dest;
-}
-
-static GenericValue executeAndInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
- GenericValue Dest;
- switch (Ty->getTypeID()) {
- IMPLEMENT_BINARY_OPERATOR(&, Bool);
- IMPLEMENT_BINARY_OPERATOR(&, Int8);
- IMPLEMENT_BINARY_OPERATOR(&, Int16);
- IMPLEMENT_BINARY_OPERATOR(&, Int32);
- IMPLEMENT_BINARY_OPERATOR(&, Int64);
- default:
- cerr << "Unhandled type for And instruction: " << *Ty << "\n";
- abort();
- }
- return Dest;
}
-static GenericValue executeOrInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
- GenericValue Dest;
- switch (Ty->getTypeID()) {
- IMPLEMENT_BINARY_OPERATOR(|, Bool);
- IMPLEMENT_BINARY_OPERATOR(|, Int8);
- IMPLEMENT_BINARY_OPERATOR(|, Int16);
- IMPLEMENT_BINARY_OPERATOR(|, Int32);
- IMPLEMENT_BINARY_OPERATOR(|, Int64);
- default:
- cerr << "Unhandled type for Or instruction: " << *Ty << "\n";
- abort();
- }
- return Dest;
-}
-
-static GenericValue executeXorInst(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
- GenericValue Dest;
- switch (Ty->getTypeID()) {
- IMPLEMENT_BINARY_OPERATOR(^, Bool);
- IMPLEMENT_BINARY_OPERATOR(^, Int8);
- IMPLEMENT_BINARY_OPERATOR(^, Int16);
- IMPLEMENT_BINARY_OPERATOR(^, Int32);
- IMPLEMENT_BINARY_OPERATOR(^, Int64);
- default:
- cerr << "Unhandled type for Xor instruction: " << *Ty << "\n";
- abort();
- }
- return Dest;
-}
+#define IMPLEMENT_INTEGER_ICMP(OP, TY) \
+ case Type::IntegerTyID: \
+ Dest.IntVal = APInt(1,Src1.IntVal.OP(Src2.IntVal)); \
+ break;
-#define IMPLEMENT_ICMP(OP, TY, CAST) \
- case Type::TY##TyID: Dest.BoolVal = \
- ((CAST)Src1.TY##Val) OP ((CAST)Src2.TY##Val); break
+#define IMPLEMENT_VECTOR_INTEGER_ICMP(OP, TY) \
+ case Type::VectorTyID: { \
+ assert(Src1.AggregateVal.size() == Src2.AggregateVal.size()); \
+ Dest.AggregateVal.resize( Src1.AggregateVal.size() ); \
+ for( uint32_t _i=0;_i<Src1.AggregateVal.size();_i++) \
+ Dest.AggregateVal[_i].IntVal = APInt(1, \
+ Src1.AggregateVal[_i].IntVal.OP(Src2.AggregateVal[_i].IntVal));\
+ } 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_POINTERCMP(OP) \
+#define IMPLEMENT_POINTER_ICMP(OP) \
case Type::PointerTyID: \
- Dest.BoolVal = (void*)(intptr_t)Src1.PointerVal OP \
- (void*)(intptr_t)Src2.PointerVal; break
+ Dest.IntVal = APInt(1,(void*)(intptr_t)Src1.PointerVal OP \
+ (void*)(intptr_t)Src2.PointerVal); \
+ break;
static GenericValue executeICMP_EQ(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(==);
+ IMPLEMENT_INTEGER_ICMP(eq,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(eq,Ty);
+ IMPLEMENT_POINTER_ICMP(==);
default:
- cerr << "Unhandled type for ICMP_EQ predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_EQ predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_NE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(!=);
+ IMPLEMENT_INTEGER_ICMP(ne,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(ne,Ty);
+ IMPLEMENT_POINTER_ICMP(!=);
default:
- cerr << "Unhandled type for ICMP_NE predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_NE predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_ULT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(<);
+ IMPLEMENT_INTEGER_ICMP(ult,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(ult,Ty);
+ IMPLEMENT_POINTER_ICMP(<);
default:
- cerr << "Unhandled type for ICMP_ULT predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_ULT predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_SLT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(<);
+ IMPLEMENT_INTEGER_ICMP(slt,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(slt,Ty);
+ IMPLEMENT_POINTER_ICMP(<);
default:
- cerr << "Unhandled type for ICMP_SLT predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_SLT predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_UGT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(>);
+ IMPLEMENT_INTEGER_ICMP(ugt,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(ugt,Ty);
+ IMPLEMENT_POINTER_ICMP(>);
default:
- cerr << "Unhandled type for ICMP_UGT predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_UGT predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_SGT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(>);
+ IMPLEMENT_INTEGER_ICMP(sgt,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(sgt,Ty);
+ IMPLEMENT_POINTER_ICMP(>);
default:
- cerr << "Unhandled type for ICMP_SGT predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_SGT predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_ULE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(<=);
+ IMPLEMENT_INTEGER_ICMP(ule,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(ule,Ty);
+ IMPLEMENT_POINTER_ICMP(<=);
default:
- cerr << "Unhandled type for ICMP_ULE predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_ULE predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_SLE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(<=);
+ IMPLEMENT_INTEGER_ICMP(sle,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(sle,Ty);
+ IMPLEMENT_POINTER_ICMP(<=);
default:
- cerr << "Unhandled type for ICMP_SLE predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_SLE predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_UGE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(>=);
+ IMPLEMENT_INTEGER_ICMP(uge,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(uge,Ty);
+ IMPLEMENT_POINTER_ICMP(>=);
default:
- cerr << "Unhandled type for ICMP_UGE predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_UGE predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeICMP_SGE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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(>=);
+ IMPLEMENT_INTEGER_ICMP(sge,Ty);
+ IMPLEMENT_VECTOR_INTEGER_ICMP(sge,Ty);
+ IMPLEMENT_POINTER_ICMP(>=);
default:
- cerr << "Unhandled type for ICMP_SGE predicate: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for ICMP_SGE predicate: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
void Interpreter::visitICmpInst(ICmpInst &I) {
ExecutionContext &SF = ECStack.back();
- const Type *Ty = I.getOperand(0)->getType();
+ 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_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_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();
+ dbgs() << "Don't know how to handle this ICmp predicate!\n-->" << I;
+ llvm_unreachable(0);
}
SetValue(&I, R, SF);
}
#define IMPLEMENT_FCMP(OP, TY) \
- case Type::TY##TyID: Dest.BoolVal = Src1.TY##Val OP Src2.TY##Val; break
+ case Type::TY##TyID: \
+ Dest.IntVal = APInt(1,Src1.TY##Val OP Src2.TY##Val); \
+ break
-static GenericValue executeFCMP_EQ(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+#define IMPLEMENT_VECTOR_FCMP_T(OP, TY) \
+ assert(Src1.AggregateVal.size() == Src2.AggregateVal.size()); \
+ Dest.AggregateVal.resize( Src1.AggregateVal.size() ); \
+ for( uint32_t _i=0;_i<Src1.AggregateVal.size();_i++) \
+ Dest.AggregateVal[_i].IntVal = APInt(1, \
+ Src1.AggregateVal[_i].TY##Val OP Src2.AggregateVal[_i].TY##Val);\
+ break;
+
+#define IMPLEMENT_VECTOR_FCMP(OP) \
+ case Type::VectorTyID: \
+ if(dyn_cast<VectorType>(Ty)->getElementType()->isFloatTy()) { \
+ IMPLEMENT_VECTOR_FCMP_T(OP, Float); \
+ } else { \
+ IMPLEMENT_VECTOR_FCMP_T(OP, Double); \
+ }
+
+static GenericValue executeFCMP_OEQ(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(==, Float);
IMPLEMENT_FCMP(==, Double);
+ IMPLEMENT_VECTOR_FCMP(==);
default:
- cerr << "Unhandled type for SetEQ instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp EQ instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
-static GenericValue executeFCMP_NE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+#define IMPLEMENT_SCALAR_NANS(TY, X,Y) \
+ if (TY->isFloatTy()) { \
+ if (X.FloatVal != X.FloatVal || Y.FloatVal != Y.FloatVal) { \
+ Dest.IntVal = APInt(1,false); \
+ return Dest; \
+ } \
+ } else { \
+ if (X.DoubleVal != X.DoubleVal || Y.DoubleVal != Y.DoubleVal) { \
+ Dest.IntVal = APInt(1,false); \
+ return Dest; \
+ } \
+ }
+
+#define MASK_VECTOR_NANS_T(X,Y, TZ, FLAG) \
+ assert(X.AggregateVal.size() == Y.AggregateVal.size()); \
+ Dest.AggregateVal.resize( X.AggregateVal.size() ); \
+ for( uint32_t _i=0;_i<X.AggregateVal.size();_i++) { \
+ if (X.AggregateVal[_i].TZ##Val != X.AggregateVal[_i].TZ##Val || \
+ Y.AggregateVal[_i].TZ##Val != Y.AggregateVal[_i].TZ##Val) \
+ Dest.AggregateVal[_i].IntVal = APInt(1,FLAG); \
+ else { \
+ Dest.AggregateVal[_i].IntVal = APInt(1,!FLAG); \
+ } \
+ }
+
+#define MASK_VECTOR_NANS(TY, X,Y, FLAG) \
+ if (TY->isVectorTy()) { \
+ if (dyn_cast<VectorType>(TY)->getElementType()->isFloatTy()) { \
+ MASK_VECTOR_NANS_T(X, Y, Float, FLAG) \
+ } else { \
+ MASK_VECTOR_NANS_T(X, Y, Double, FLAG) \
+ } \
+ } \
+
+
+
+static GenericValue executeFCMP_ONE(GenericValue Src1, GenericValue Src2,
+ Type *Ty)
+{
GenericValue Dest;
+ // if input is scalar value and Src1 or Src2 is NaN return false
+ IMPLEMENT_SCALAR_NANS(Ty, Src1, Src2)
+ // if vector input detect NaNs and fill mask
+ MASK_VECTOR_NANS(Ty, Src1, Src2, false)
+ GenericValue DestMask = Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(!=, Float);
IMPLEMENT_FCMP(!=, Double);
-
- default:
- cerr << "Unhandled type for SetNE instruction: " << *Ty << "\n";
- abort();
+ IMPLEMENT_VECTOR_FCMP(!=);
+ default:
+ dbgs() << "Unhandled type for FCmp NE instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
+ // in vector case mask out NaN elements
+ if (Ty->isVectorTy())
+ for( size_t _i=0; _i<Src1.AggregateVal.size(); _i++)
+ if (DestMask.AggregateVal[_i].IntVal == false)
+ Dest.AggregateVal[_i].IntVal = APInt(1,false);
+
return Dest;
}
-static GenericValue executeFCMP_LE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeFCMP_OLE(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(<=, Float);
IMPLEMENT_FCMP(<=, Double);
+ IMPLEMENT_VECTOR_FCMP(<=);
default:
- cerr << "Unhandled type for SetLE instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp LE instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
-static GenericValue executeFCMP_GE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeFCMP_OGE(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(>=, Float);
IMPLEMENT_FCMP(>=, Double);
+ IMPLEMENT_VECTOR_FCMP(>=);
default:
- cerr << "Unhandled type for SetGE instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp GE instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
-static GenericValue executeFCMP_LT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeFCMP_OLT(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(<, Float);
IMPLEMENT_FCMP(<, Double);
+ IMPLEMENT_VECTOR_FCMP(<);
default:
- cerr << "Unhandled type for SetLT instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp LT instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
-static GenericValue executeFCMP_GT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+static GenericValue executeFCMP_OGT(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(>, Float);
IMPLEMENT_FCMP(>, Double);
+ IMPLEMENT_VECTOR_FCMP(>);
default:
- cerr << "Unhandled type for SetGT instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp GT instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
+#define IMPLEMENT_UNORDERED(TY, X,Y) \
+ if (TY->isFloatTy()) { \
+ if (X.FloatVal != X.FloatVal || Y.FloatVal != Y.FloatVal) { \
+ Dest.IntVal = APInt(1,true); \
+ return Dest; \
+ } \
+ } else if (X.DoubleVal != X.DoubleVal || Y.DoubleVal != Y.DoubleVal) { \
+ Dest.IntVal = APInt(1,true); \
+ return Dest; \
+ }
+
+#define IMPLEMENT_VECTOR_UNORDERED(TY, X,Y, _FUNC) \
+ if (TY->isVectorTy()) { \
+ GenericValue DestMask = Dest; \
+ Dest = _FUNC(Src1, Src2, Ty); \
+ for( size_t _i=0; _i<Src1.AggregateVal.size(); _i++) \
+ if (DestMask.AggregateVal[_i].IntVal == true) \
+ Dest.AggregateVal[_i].IntVal = APInt(1,true); \
+ return Dest; \
+ }
+
+static GenericValue executeFCMP_UEQ(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ MASK_VECTOR_NANS(Ty, Src1, Src2, true)
+ IMPLEMENT_VECTOR_UNORDERED(Ty, Src1, Src2, executeFCMP_OEQ)
+ return executeFCMP_OEQ(Src1, Src2, Ty);
+
+}
+
+static GenericValue executeFCMP_UNE(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ MASK_VECTOR_NANS(Ty, Src1, Src2, true)
+ IMPLEMENT_VECTOR_UNORDERED(Ty, Src1, Src2, executeFCMP_ONE)
+ return executeFCMP_ONE(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_ULE(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ MASK_VECTOR_NANS(Ty, Src1, Src2, true)
+ IMPLEMENT_VECTOR_UNORDERED(Ty, Src1, Src2, executeFCMP_OLE)
+ return executeFCMP_OLE(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_UGE(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ MASK_VECTOR_NANS(Ty, Src1, Src2, true)
+ IMPLEMENT_VECTOR_UNORDERED(Ty, Src1, Src2, executeFCMP_OGE)
+ return executeFCMP_OGE(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_ULT(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ MASK_VECTOR_NANS(Ty, Src1, Src2, true)
+ IMPLEMENT_VECTOR_UNORDERED(Ty, Src1, Src2, executeFCMP_OLT)
+ return executeFCMP_OLT(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_UGT(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ IMPLEMENT_UNORDERED(Ty, Src1, Src2)
+ MASK_VECTOR_NANS(Ty, Src1, Src2, true)
+ IMPLEMENT_VECTOR_UNORDERED(Ty, Src1, Src2, executeFCMP_OGT)
+ return executeFCMP_OGT(Src1, Src2, Ty);
+}
+
+static GenericValue executeFCMP_ORD(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ if(Ty->isVectorTy()) {
+ assert(Src1.AggregateVal.size() == Src2.AggregateVal.size());
+ Dest.AggregateVal.resize( Src1.AggregateVal.size() );
+ if(dyn_cast<VectorType>(Ty)->getElementType()->isFloatTy()) {
+ for( size_t _i=0;_i<Src1.AggregateVal.size();_i++)
+ Dest.AggregateVal[_i].IntVal = APInt(1,
+ ( (Src1.AggregateVal[_i].FloatVal ==
+ Src1.AggregateVal[_i].FloatVal) &&
+ (Src2.AggregateVal[_i].FloatVal ==
+ Src2.AggregateVal[_i].FloatVal)));
+ } else {
+ for( size_t _i=0;_i<Src1.AggregateVal.size();_i++)
+ Dest.AggregateVal[_i].IntVal = APInt(1,
+ ( (Src1.AggregateVal[_i].DoubleVal ==
+ Src1.AggregateVal[_i].DoubleVal) &&
+ (Src2.AggregateVal[_i].DoubleVal ==
+ Src2.AggregateVal[_i].DoubleVal)));
+ }
+ } else if (Ty->isFloatTy())
+ Dest.IntVal = APInt(1,(Src1.FloatVal == Src1.FloatVal &&
+ Src2.FloatVal == Src2.FloatVal));
+ else {
+ Dest.IntVal = APInt(1,(Src1.DoubleVal == Src1.DoubleVal &&
+ Src2.DoubleVal == Src2.DoubleVal));
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_UNO(GenericValue Src1, GenericValue Src2,
+ Type *Ty) {
+ GenericValue Dest;
+ if(Ty->isVectorTy()) {
+ assert(Src1.AggregateVal.size() == Src2.AggregateVal.size());
+ Dest.AggregateVal.resize( Src1.AggregateVal.size() );
+ if(dyn_cast<VectorType>(Ty)->getElementType()->isFloatTy()) {
+ for( size_t _i=0;_i<Src1.AggregateVal.size();_i++)
+ Dest.AggregateVal[_i].IntVal = APInt(1,
+ ( (Src1.AggregateVal[_i].FloatVal !=
+ Src1.AggregateVal[_i].FloatVal) ||
+ (Src2.AggregateVal[_i].FloatVal !=
+ Src2.AggregateVal[_i].FloatVal)));
+ } else {
+ for( size_t _i=0;_i<Src1.AggregateVal.size();_i++)
+ Dest.AggregateVal[_i].IntVal = APInt(1,
+ ( (Src1.AggregateVal[_i].DoubleVal !=
+ Src1.AggregateVal[_i].DoubleVal) ||
+ (Src2.AggregateVal[_i].DoubleVal !=
+ Src2.AggregateVal[_i].DoubleVal)));
+ }
+ } else if (Ty->isFloatTy())
+ Dest.IntVal = APInt(1,(Src1.FloatVal != Src1.FloatVal ||
+ Src2.FloatVal != Src2.FloatVal));
+ else {
+ Dest.IntVal = APInt(1,(Src1.DoubleVal != Src1.DoubleVal ||
+ Src2.DoubleVal != Src2.DoubleVal));
+ }
+ return Dest;
+}
+
+static GenericValue executeFCMP_BOOL(GenericValue Src1, GenericValue Src2,
+ const Type *Ty, const bool val) {
+ GenericValue Dest;
+ if(Ty->isVectorTy()) {
+ assert(Src1.AggregateVal.size() == Src2.AggregateVal.size());
+ Dest.AggregateVal.resize( Src1.AggregateVal.size() );
+ for( size_t _i=0; _i<Src1.AggregateVal.size(); _i++)
+ Dest.AggregateVal[_i].IntVal = APInt(1,val);
+ } else {
+ Dest.IntVal = APInt(1, val);
+ }
+
+ return Dest;
+}
+
void Interpreter::visitFCmpInst(FCmpInst &I) {
ExecutionContext &SF = ECStack.back();
- const Type *Ty = I.getOperand(0)->getType();
+ 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();
+ dbgs() << "Don't know how to handle this FCmp predicate!\n-->" << I;
+ llvm_unreachable(0);
+ break;
+ case FCmpInst::FCMP_FALSE: R = executeFCMP_BOOL(Src1, Src2, Ty, false);
+ break;
+ case FCmpInst::FCMP_TRUE: R = executeFCMP_BOOL(Src1, Src2, Ty, 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;
}
SetValue(&I, R, SF);
}
static GenericValue executeCmpInst(unsigned predicate, GenericValue Src1,
- GenericValue Src2, const Type *Ty) {
+ GenericValue Src2, Type *Ty) {
GenericValue Result;
switch (predicate) {
case ICmpInst::ICMP_EQ: return executeICMP_EQ(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;
- }
+ 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: return executeFCMP_BOOL(Src1, Src2, Ty, false);
+ case FCmpInst::FCMP_TRUE: return executeFCMP_BOOL(Src1, Src2, Ty, true);
default:
- cerr << "Unhandled Cmp predicate\n";
- abort();
+ dbgs() << "Unhandled Cmp predicate\n";
+ llvm_unreachable(0);
}
}
void Interpreter::visitBinaryOperator(BinaryOperator &I) {
ExecutionContext &SF = ECStack.back();
- const Type *Ty = I.getOperand(0)->getType();
+ Type *Ty = I.getOperand(0)->getType();
GenericValue Src1 = getOperandValue(I.getOperand(0), SF);
GenericValue Src2 = getOperandValue(I.getOperand(1), SF);
GenericValue R; // Result
- switch (I.getOpcode()) {
- 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::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;
- default:
- cerr << "Don't know how to handle this binary operator!\n-->" << I;
- abort();
+ // First process vector operation
+ if (Ty->isVectorTy()) {
+ assert(Src1.AggregateVal.size() == Src2.AggregateVal.size());
+ R.AggregateVal.resize(Src1.AggregateVal.size());
+
+ // Macros to execute binary operation 'OP' over integer vectors
+#define INTEGER_VECTOR_OPERATION(OP) \
+ for (unsigned i = 0; i < R.AggregateVal.size(); ++i) \
+ R.AggregateVal[i].IntVal = \
+ Src1.AggregateVal[i].IntVal OP Src2.AggregateVal[i].IntVal;
+
+ // Additional macros to execute binary operations udiv/sdiv/urem/srem since
+ // they have different notation.
+#define INTEGER_VECTOR_FUNCTION(OP) \
+ for (unsigned i = 0; i < R.AggregateVal.size(); ++i) \
+ R.AggregateVal[i].IntVal = \
+ Src1.AggregateVal[i].IntVal.OP(Src2.AggregateVal[i].IntVal);
+
+ // Macros to execute binary operation 'OP' over floating point type TY
+ // (float or double) vectors
+#define FLOAT_VECTOR_FUNCTION(OP, TY) \
+ for (unsigned i = 0; i < R.AggregateVal.size(); ++i) \
+ R.AggregateVal[i].TY = \
+ Src1.AggregateVal[i].TY OP Src2.AggregateVal[i].TY;
+
+ // Macros to choose appropriate TY: float or double and run operation
+ // execution
+#define FLOAT_VECTOR_OP(OP) { \
+ if (dyn_cast<VectorType>(Ty)->getElementType()->isFloatTy()) \
+ FLOAT_VECTOR_FUNCTION(OP, FloatVal) \
+ else { \
+ if (dyn_cast<VectorType>(Ty)->getElementType()->isDoubleTy()) \
+ FLOAT_VECTOR_FUNCTION(OP, DoubleVal) \
+ else { \
+ dbgs() << "Unhandled type for OP instruction: " << *Ty << "\n"; \
+ llvm_unreachable(0); \
+ } \
+ } \
+}
+
+ switch(I.getOpcode()){
+ default:
+ dbgs() << "Don't know how to handle this binary operator!\n-->" << I;
+ llvm_unreachable(0);
+ break;
+ case Instruction::Add: INTEGER_VECTOR_OPERATION(+) break;
+ case Instruction::Sub: INTEGER_VECTOR_OPERATION(-) break;
+ case Instruction::Mul: INTEGER_VECTOR_OPERATION(*) break;
+ case Instruction::UDiv: INTEGER_VECTOR_FUNCTION(udiv) break;
+ case Instruction::SDiv: INTEGER_VECTOR_FUNCTION(sdiv) break;
+ case Instruction::URem: INTEGER_VECTOR_FUNCTION(urem) break;
+ case Instruction::SRem: INTEGER_VECTOR_FUNCTION(srem) break;
+ case Instruction::And: INTEGER_VECTOR_OPERATION(&) break;
+ case Instruction::Or: INTEGER_VECTOR_OPERATION(|) break;
+ case Instruction::Xor: INTEGER_VECTOR_OPERATION(^) break;
+ case Instruction::FAdd: FLOAT_VECTOR_OP(+) break;
+ case Instruction::FSub: FLOAT_VECTOR_OP(-) break;
+ case Instruction::FMul: FLOAT_VECTOR_OP(*) break;
+ case Instruction::FDiv: FLOAT_VECTOR_OP(/) break;
+ case Instruction::FRem:
+ if (dyn_cast<VectorType>(Ty)->getElementType()->isFloatTy())
+ for (unsigned i = 0; i < R.AggregateVal.size(); ++i)
+ R.AggregateVal[i].FloatVal =
+ fmod(Src1.AggregateVal[i].FloatVal, Src2.AggregateVal[i].FloatVal);
+ else {
+ if (dyn_cast<VectorType>(Ty)->getElementType()->isDoubleTy())
+ for (unsigned i = 0; i < R.AggregateVal.size(); ++i)
+ R.AggregateVal[i].DoubleVal =
+ fmod(Src1.AggregateVal[i].DoubleVal, Src2.AggregateVal[i].DoubleVal);
+ else {
+ dbgs() << "Unhandled type for Rem instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
+ }
+ }
+ break;
+ }
+ } else {
+ switch (I.getOpcode()) {
+ default:
+ dbgs() << "Don't know how to handle this binary operator!\n-->" << I;
+ llvm_unreachable(0);
+ break;
+ case Instruction::Add: R.IntVal = Src1.IntVal + Src2.IntVal; break;
+ case Instruction::Sub: R.IntVal = Src1.IntVal - Src2.IntVal; break;
+ case Instruction::Mul: R.IntVal = Src1.IntVal * Src2.IntVal; break;
+ case Instruction::FAdd: executeFAddInst(R, Src1, Src2, Ty); break;
+ case Instruction::FSub: executeFSubInst(R, Src1, Src2, Ty); break;
+ case Instruction::FMul: executeFMulInst(R, Src1, Src2, Ty); break;
+ case Instruction::FDiv: executeFDivInst(R, Src1, Src2, Ty); break;
+ case Instruction::FRem: executeFRemInst(R, Src1, Src2, Ty); break;
+ case Instruction::UDiv: R.IntVal = Src1.IntVal.udiv(Src2.IntVal); break;
+ case Instruction::SDiv: R.IntVal = Src1.IntVal.sdiv(Src2.IntVal); break;
+ case Instruction::URem: R.IntVal = Src1.IntVal.urem(Src2.IntVal); break;
+ case Instruction::SRem: R.IntVal = Src1.IntVal.srem(Src2.IntVal); break;
+ case Instruction::And: R.IntVal = Src1.IntVal & Src2.IntVal; break;
+ case Instruction::Or: R.IntVal = Src1.IntVal | Src2.IntVal; break;
+ case Instruction::Xor: R.IntVal = Src1.IntVal ^ Src2.IntVal; break;
+ }
}
-
SetValue(&I, R, SF);
}
static GenericValue executeSelectInst(GenericValue Src1, GenericValue Src2,
GenericValue Src3) {
- return Src1.BoolVal ? Src2 : Src3;
+ return Src1.IntVal == 0 ? Src3 : Src2;
}
void Interpreter::visitSelectInst(SelectInst &I) {
// 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);
+ ECStack.clear();
+ runAtExitHandlers();
+ exit(GV.IntVal.zextOrTrunc(32).getZExtValue());
}
/// Pop the last stack frame off of ECStack and then copy the result
/// care of switching to the normal destination BB, if we are returning
/// from an invoke.
///
-void Interpreter::popStackAndReturnValueToCaller (const Type *RetTy,
- GenericValue Result) {
+void Interpreter::popStackAndReturnValueToCaller(Type *RetTy,
+ GenericValue Result) {
// Pop the current stack frame.
ECStack.pop_back();
if (ECStack.empty()) { // Finished main. Put result into exit code...
- if (RetTy && RetTy->isIntegral()) { // Nonvoid return type?
+ if (RetTy && !RetTy->isVoidTy()) { // Nonvoid return type?
ExitValue = Result; // Capture the exit value of the program
} else {
- memset(&ExitValue, 0, sizeof(ExitValue));
+ memset(&ExitValue.Untyped, 0, sizeof(ExitValue.Untyped));
}
} 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...
+ // Save result...
+ if (!CallingSF.Caller.getType()->isVoidTy())
SetValue(I, Result, CallingSF);
if (InvokeInst *II = dyn_cast<InvokeInst> (I))
SwitchToNewBasicBlock (II->getNormalDest (), CallingSF);
void Interpreter::visitReturnInst(ReturnInst &I) {
ExecutionContext &SF = ECStack.back();
- const Type *RetTy = Type::VoidTy;
+ Type *RetTy = Type::getVoidTy(I.getContext());
GenericValue Result;
// Save away the return value... (if we are not 'ret void')
popStackAndReturnValueToCaller(RetTy, Result);
}
-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);
-}
-
void Interpreter::visitUnreachableInst(UnreachableInst &I) {
- cerr << "ERROR: Program executed an 'unreachable' instruction!\n";
- abort();
+ report_fatal_error("Program executed an 'unreachable' instruction!");
}
void Interpreter::visitBranchInst(BranchInst &I) {
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).IntVal == 0) // If false cond...
Dest = I.getSuccessor(1);
}
SwitchToNewBasicBlock(Dest, SF);
void Interpreter::visitSwitchInst(SwitchInst &I) {
ExecutionContext &SF = ECStack.back();
- GenericValue CondVal = getOperandValue(I.getOperand(0), SF);
- const Type *ElTy = I.getOperand(0)->getType();
+ Value* Cond = I.getCondition();
+ Type *ElTy = Cond->getType();
+ GenericValue CondVal = getOperandValue(Cond, 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 (executeICMP_EQ(CondVal,
- getOperandValue(I.getOperand(i), SF), ElTy).BoolVal) {
- Dest = cast<BasicBlock>(I.getOperand(i+1));
- break;
+ for (SwitchInst::CaseIt i = I.case_begin(), e = I.case_end(); i != e; ++i) {
+ IntegersSubset& Case = i.getCaseValueEx();
+ if (Case.isSingleNumber()) {
+ // FIXME: Currently work with ConstantInt based numbers.
+ const ConstantInt *CI = Case.getSingleNumber(0).toConstantInt();
+ GenericValue Val = getOperandValue(const_cast<ConstantInt*>(CI), SF);
+ if (executeICMP_EQ(Val, CondVal, ElTy).IntVal != 0) {
+ Dest = cast<BasicBlock>(i.getCaseSuccessor());
+ break;
+ }
}
-
+ if (Case.isSingleNumbersOnly()) {
+ for (unsigned n = 0, en = Case.getNumItems(); n != en; ++n) {
+ // FIXME: Currently work with ConstantInt based numbers.
+ const ConstantInt *CI = Case.getSingleNumber(n).toConstantInt();
+ GenericValue Val = getOperandValue(const_cast<ConstantInt*>(CI), SF);
+ if (executeICMP_EQ(Val, CondVal, ElTy).IntVal != 0) {
+ Dest = cast<BasicBlock>(i.getCaseSuccessor());
+ break;
+ }
+ }
+ } else
+ for (unsigned n = 0, en = Case.getNumItems(); n != en; ++n) {
+ IntegersSubset::Range r = Case.getItem(n);
+ // FIXME: Currently work with ConstantInt based numbers.
+ const ConstantInt *LowCI = r.getLow().toConstantInt();
+ const ConstantInt *HighCI = r.getHigh().toConstantInt();
+ GenericValue Low = getOperandValue(const_cast<ConstantInt*>(LowCI), SF);
+ GenericValue High = getOperandValue(const_cast<ConstantInt*>(HighCI), SF);
+ if (executeICMP_ULE(Low, CondVal, ElTy).IntVal != 0 &&
+ executeICMP_ULE(CondVal, High, ElTy).IntVal != 0) {
+ Dest = cast<BasicBlock>(i.getCaseSuccessor());
+ break;
+ }
+ }
+ }
if (!Dest) Dest = I.getDefaultDest(); // No cases matched: use default
SwitchToNewBasicBlock(Dest, SF);
}
+void Interpreter::visitIndirectBrInst(IndirectBrInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ void *Dest = GVTOP(getOperandValue(I.getAddress(), SF));
+ SwitchToNewBasicBlock((BasicBlock*)Dest, SF);
+}
+
+
// SwitchToNewBasicBlock - This method is used to jump to a new basic block.
// This function handles the actual updating of block and instruction iterators
// as well as execution of all of the PHI nodes in the destination block.
// Memory Instruction Implementations
//===----------------------------------------------------------------------===//
-void Interpreter::visitAllocationInst(AllocationInst &I) {
+void Interpreter::visitAllocaInst(AllocaInst &I) {
ExecutionContext &SF = ECStack.back();
- const Type *Ty = I.getType()->getElementType(); // Type to be allocated
+ 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).Int32Val;
+ unsigned NumElements =
+ getOperandValue(I.getOperand(0), SF).IntVal.getZExtValue();
+
+ unsigned TypeSize = (size_t)TD.getTypeAllocSize(Ty);
+
+ // Avoid malloc-ing zero bytes, use max()...
+ unsigned MemToAlloc = std::max(1U, NumElements * TypeSize);
// Allocate enough memory to hold the type...
- void *Memory = malloc(NumElements * (size_t)TD.getTypeSize(Ty));
+ void *Memory = malloc(MemToAlloc);
+
+ DEBUG(dbgs() << "Allocated Type: " << *Ty << " (" << TypeSize << " bytes) x "
+ << NumElements << " (Total: " << MemToAlloc << ") at "
+ << uintptr_t(Memory) << '\n');
GenericValue Result = PTOGV(Memory);
assert(Result.PointerVal != 0 && "Null pointer returned by malloc!");
ECStack.back().Allocas.add(Memory);
}
-void Interpreter::visitFreeInst(FreeInst &I) {
- ExecutionContext &SF = ECStack.back();
- assert(isa<PointerType>(I.getOperand(0)->getType()) && "Freeing nonptr?");
- GenericValue Value = getOperandValue(I.getOperand(0), SF);
- // TODO: Check to make sure memory is allocated
- free(GVTOP(Value)); // Free memory
-}
-
// getElementOffset - The workhorse for getelementptr.
//
GenericValue Interpreter::executeGEPOperation(Value *Ptr, gep_type_iterator I,
gep_type_iterator E,
ExecutionContext &SF) {
- assert(isa<PointerType>(Ptr->getType()) &&
+ assert(Ptr->getType()->isPointerTy() &&
"Cannot getElementOffset of a nonpointer type!");
- PointerTy Total = 0;
+ uint64_t Total = 0;
for (; I != E; ++I) {
- if (const StructType *STy = dyn_cast<StructType>(*I)) {
+ if (StructType *STy = dyn_cast<StructType>(*I)) {
const StructLayout *SLO = TD.getStructLayout(STy);
const ConstantInt *CPU = cast<ConstantInt>(I.getOperand());
unsigned Index = unsigned(CPU->getZExtValue());
- Total += (PointerTy)SLO->MemberOffsets[Index];
+ Total += SLO->getElementOffset(Index);
} else {
- const SequentialType *ST = cast<SequentialType>(*I);
+ SequentialType *ST = cast<SequentialType>(*I);
// 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::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;
+ int64_t Idx;
+ unsigned BitWidth =
+ cast<IntegerType>(I.getOperand()->getType())->getBitWidth();
+ if (BitWidth == 32)
+ Idx = (int64_t)(int32_t)IdxGV.IntVal.getZExtValue();
+ else {
+ assert(BitWidth == 64 && "Invalid index type for getelementptr");
+ Idx = (int64_t)IdxGV.IntVal.getZExtValue();
}
- Total += PointerTy(TD.getTypeSize(ST->getElementType())*Idx);
+ Total += TD.getTypeAllocSize(ST->getElementType())*Idx;
}
}
GenericValue Result;
- Result.PointerVal = getOperandValue(Ptr, SF).PointerVal + Total;
+ Result.PointerVal = ((char*)getOperandValue(Ptr, SF).PointerVal) + Total;
+ DEBUG(dbgs() << "GEP Index " << Total << " bytes.\n");
return Result;
}
void Interpreter::visitGetElementPtrInst(GetElementPtrInst &I) {
ExecutionContext &SF = ECStack.back();
- SetValue(&I, TheEE->executeGEPOperation(I.getPointerOperand(),
+ SetValue(&I, executeGEPOperation(I.getPointerOperand(),
gep_type_begin(I), gep_type_end(I), SF), SF);
}
ExecutionContext &SF = ECStack.back();
GenericValue SRC = getOperandValue(I.getPointerOperand(), SF);
GenericValue *Ptr = (GenericValue*)GVTOP(SRC);
- GenericValue Result = LoadValueFromMemory(Ptr, I.getType());
+ GenericValue Result;
+ LoadValueFromMemory(Result, Ptr, I.getType());
SetValue(&I, Result, SF);
+ if (I.isVolatile() && PrintVolatile)
+ dbgs() << "Volatile load " << I;
}
void Interpreter::visitStoreInst(StoreInst &I) {
GenericValue SRC = getOperandValue(I.getPointerOperand(), SF);
StoreValueToMemory(Val, (GenericValue *)GVTOP(SRC),
I.getOperand(0)->getType());
+ if (I.isVolatile() && PrintVolatile)
+ dbgs() << "Volatile store: " << I;
}
//===----------------------------------------------------------------------===//
ExecutionContext &SF = ECStack.back();
// Check to see if this is an intrinsic function call...
- if (Function *F = CS.getCalledFunction())
- if (F->isExternal ())
+ Function *F = CS.getCalledFunction();
+ if (F && F->isDeclaration())
switch (F->getIntrinsicID()) {
case Intrinsic::not_intrinsic:
break;
// 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::iterator me(CS.getInstruction());
BasicBlock *Parent = CS.getInstruction()->getParent();
+ bool atBegin(Parent->begin() == me);
+ if (!atBegin)
+ --me;
IL->LowerIntrinsicCall(cast<CallInst>(CS.getInstruction()));
// Restore the CurInst pointer to the first instruction newly inserted, if
// any.
- if (!Prev) {
+ if (atBegin) {
SF.CurInst = Parent->begin();
} else {
- SF.CurInst = Prev;
+ SF.CurInst = me;
++SF.CurInst;
}
return;
}
+
SF.Caller = CS;
std::vector<GenericValue> ArgVals;
const unsigned NumArgs = SF.Caller.arg_size();
ArgVals.reserve(NumArgs);
+ uint16_t pNum = 1;
for (CallSite::arg_iterator i = SF.Caller.arg_begin(),
- e = SF.Caller.arg_end(); i != e; ++i) {
+ e = SF.Caller.arg_end(); i != e; ++i, ++pNum) {
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.
- 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().Int32Val = ArgVals.back().BoolVal;
- else
- assert(0 && "Unknown type!");
- }
}
// To handle indirect calls, we must get the pointer value from the argument
callFunction((Function*)GVTOP(SRC), ArgVals);
}
-#define IMPLEMENT_SHIFT(OP, TY) \
- 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) {
+void Interpreter::visitShl(BinaryOperator &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 = executeShlInst (Src1, Src2, Ty);
+ if (Src2.IntVal.getZExtValue() < Src1.IntVal.getBitWidth())
+ Dest.IntVal = Src1.IntVal.shl(Src2.IntVal.getZExtValue());
+ else
+ Dest.IntVal = Src1.IntVal;
+
SetValue(&I, Dest, SF);
}
-void Interpreter::visitLShr(ShiftInst &I) {
+void Interpreter::visitLShr(BinaryOperator &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);
+ if (Src2.IntVal.getZExtValue() < Src1.IntVal.getBitWidth())
+ Dest.IntVal = Src1.IntVal.lshr(Src2.IntVal.getZExtValue());
+ else
+ Dest.IntVal = Src1.IntVal;
+
SetValue(&I, Dest, SF);
}
-void Interpreter::visitAShr(ShiftInst &I) {
+void Interpreter::visitAShr(BinaryOperator &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);
+ if (Src2.IntVal.getZExtValue() < Src1.IntVal.getBitWidth())
+ Dest.IntVal = Src1.IntVal.ashr(Src2.IntVal.getZExtValue());
+ else
+ Dest.IntVal = Src1.IntVal;
+
SetValue(&I, Dest, SF);
}
-#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_END \
- default: cerr \
- << "Unhandled dest type for cast instruction: " \
- << *DstTy << "\n"; \
- abort(); \
- }
+GenericValue Interpreter::executeTruncInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ IntegerType *DITy = cast<IntegerType>(DstTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ Dest.IntVal = Src.IntVal.trunc(DBitWidth);
+ return Dest;
+}
-GenericValue Interpreter::executeCastOperation(Instruction::CastOps opcode,
- Value *SrcVal, const Type *DstTy,
- ExecutionContext &SF) {
- const Type *SrcTy = SrcVal->getType();
+GenericValue Interpreter::executeSExtInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ IntegerType *DITy = cast<IntegerType>(DstTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ Dest.IntVal = Src.IntVal.sext(DBitWidth);
+ return Dest;
+}
- 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;
- }
+GenericValue Interpreter::executeZExtInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ IntegerType *DITy = cast<IntegerType>(DstTy);
+ unsigned DBitWidth = DITy->getBitWidth();
+ Dest.IntVal = Src.IntVal.zext(DBitWidth);
+ return Dest;
+}
- 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();
- }
+GenericValue Interpreter::executeFPTruncInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(SrcVal->getType()->isDoubleTy() && DstTy->isFloatTy() &&
+ "Invalid FPTrunc instruction");
+ Dest.FloatVal = (float) Src.DoubleVal;
+ return Dest;
+}
+
+GenericValue Interpreter::executeFPExtInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(SrcVal->getType()->isFloatTy() && DstTy->isDoubleTy() &&
+ "Invalid FPTrunc instruction");
+ Dest.DoubleVal = (double) Src.FloatVal;
+ return Dest;
+}
+
+GenericValue Interpreter::executeFPToUIInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ Type *SrcTy = SrcVal->getType();
+ uint32_t DBitWidth = cast<IntegerType>(DstTy)->getBitWidth();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(SrcTy->isFloatingPointTy() && "Invalid FPToUI instruction");
+
+ if (SrcTy->getTypeID() == Type::FloatTyID)
+ Dest.IntVal = APIntOps::RoundFloatToAPInt(Src.FloatVal, DBitWidth);
+ else
+ Dest.IntVal = APIntOps::RoundDoubleToAPInt(Src.DoubleVal, DBitWidth);
+ return Dest;
+}
+
+GenericValue Interpreter::executeFPToSIInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ Type *SrcTy = SrcVal->getType();
+ uint32_t DBitWidth = cast<IntegerType>(DstTy)->getBitWidth();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(SrcTy->isFloatingPointTy() && "Invalid FPToSI instruction");
+
+ if (SrcTy->getTypeID() == Type::FloatTyID)
+ Dest.IntVal = APIntOps::RoundFloatToAPInt(Src.FloatVal, DBitWidth);
+ else
+ Dest.IntVal = APIntOps::RoundDoubleToAPInt(Src.DoubleVal, DBitWidth);
+ return Dest;
+}
+
+GenericValue Interpreter::executeUIToFPInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(DstTy->isFloatingPointTy() && "Invalid UIToFP instruction");
+
+ if (DstTy->getTypeID() == Type::FloatTyID)
+ Dest.FloatVal = APIntOps::RoundAPIntToFloat(Src.IntVal);
+ else
+ Dest.DoubleVal = APIntOps::RoundAPIntToDouble(Src.IntVal);
return Dest;
}
-void Interpreter::visitCastInst(CastInst &I) {
+GenericValue Interpreter::executeSIToFPInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(DstTy->isFloatingPointTy() && "Invalid SIToFP instruction");
+
+ if (DstTy->getTypeID() == Type::FloatTyID)
+ Dest.FloatVal = APIntOps::RoundSignedAPIntToFloat(Src.IntVal);
+ else
+ Dest.DoubleVal = APIntOps::RoundSignedAPIntToDouble(Src.IntVal);
+ return Dest;
+
+}
+
+GenericValue Interpreter::executePtrToIntInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ uint32_t DBitWidth = cast<IntegerType>(DstTy)->getBitWidth();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(SrcVal->getType()->isPointerTy() && "Invalid PtrToInt instruction");
+
+ Dest.IntVal = APInt(DBitWidth, (intptr_t) Src.PointerVal);
+ return Dest;
+}
+
+GenericValue Interpreter::executeIntToPtrInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ assert(DstTy->isPointerTy() && "Invalid PtrToInt instruction");
+
+ uint32_t PtrSize = TD.getPointerSizeInBits();
+ if (PtrSize != Src.IntVal.getBitWidth())
+ Src.IntVal = Src.IntVal.zextOrTrunc(PtrSize);
+
+ Dest.PointerVal = PointerTy(intptr_t(Src.IntVal.getZExtValue()));
+ return Dest;
+}
+
+GenericValue Interpreter::executeBitCastInst(Value *SrcVal, Type *DstTy,
+ ExecutionContext &SF) {
+
+ Type *SrcTy = SrcVal->getType();
+ GenericValue Dest, Src = getOperandValue(SrcVal, SF);
+ if (DstTy->isPointerTy()) {
+ assert(SrcTy->isPointerTy() && "Invalid BitCast");
+ Dest.PointerVal = Src.PointerVal;
+ } else if (DstTy->isIntegerTy()) {
+ if (SrcTy->isFloatTy()) {
+ Dest.IntVal = APInt::floatToBits(Src.FloatVal);
+ } else if (SrcTy->isDoubleTy()) {
+ Dest.IntVal = APInt::doubleToBits(Src.DoubleVal);
+ } else if (SrcTy->isIntegerTy()) {
+ Dest.IntVal = Src.IntVal;
+ } else
+ llvm_unreachable("Invalid BitCast");
+ } else if (DstTy->isFloatTy()) {
+ if (SrcTy->isIntegerTy())
+ Dest.FloatVal = Src.IntVal.bitsToFloat();
+ else
+ Dest.FloatVal = Src.FloatVal;
+ } else if (DstTy->isDoubleTy()) {
+ if (SrcTy->isIntegerTy())
+ Dest.DoubleVal = Src.IntVal.bitsToDouble();
+ else
+ Dest.DoubleVal = Src.DoubleVal;
+ } else
+ llvm_unreachable("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, 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, executeCastOperation(I.getOpcode(), I.getOperand(0),
- I.getType(), SF), SF);
+ 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) \
GenericValue VAList = getOperandValue(I.getOperand(0), SF);
GenericValue Dest;
GenericValue Src = ECStack[VAList.UIntPairVal.first]
- .VarArgs[VAList.UIntPairVal.second];
- const Type *Ty = I.getType();
+ .VarArgs[VAList.UIntPairVal.second];
+ 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);
+ case Type::IntegerTyID:
+ Dest.IntVal = Src.IntVal;
+ break;
+ IMPLEMENT_VAARG(Pointer);
+ IMPLEMENT_VAARG(Float);
+ IMPLEMENT_VAARG(Double);
default:
- cerr << "Unhandled dest type for vaarg instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled dest type for vaarg instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
// Set the Value of this Instruction.
++VAList.UIntPairVal.second;
}
+void Interpreter::visitExtractElementInst(ExtractElementInst &I) {
+ ExecutionContext &SF = ECStack.back();
+ GenericValue Src1 = getOperandValue(I.getOperand(0), SF);
+ GenericValue Src2 = getOperandValue(I.getOperand(1), SF);
+ GenericValue Dest;
+
+ Type *Ty = I.getType();
+ const unsigned indx = unsigned(Src2.IntVal.getZExtValue());
+
+ if(Src1.AggregateVal.size() > indx) {
+ switch (Ty->getTypeID()) {
+ default:
+ dbgs() << "Unhandled destination type for extractelement instruction: "
+ << *Ty << "\n";
+ llvm_unreachable(0);
+ break;
+ case Type::IntegerTyID:
+ Dest.IntVal = Src1.AggregateVal[indx].IntVal;
+ break;
+ case Type::FloatTyID:
+ Dest.FloatVal = Src1.AggregateVal[indx].FloatVal;
+ break;
+ case Type::DoubleTyID:
+ Dest.DoubleVal = Src1.AggregateVal[indx].DoubleVal;
+ break;
+ }
+ } else {
+ dbgs() << "Invalid index in extractelement instruction\n";
+ }
+
+ SetValue(&I, Dest, SF);
+}
+
+GenericValue Interpreter::getConstantExprValue (ConstantExpr *CE,
+ ExecutionContext &SF) {
+ switch (CE->getOpcode()) {
+ 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);
+ 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::Select:
+ return executeSelectInst(getOperandValue(CE->getOperand(0), SF),
+ getOperandValue(CE->getOperand(1), SF),
+ getOperandValue(CE->getOperand(2), SF));
+ default :
+ break;
+ }
+
+ // The cases below here require a GenericValue parameter for the result
+ // so we initialize one, compute it and then return it.
+ GenericValue Op0 = getOperandValue(CE->getOperand(0), SF);
+ GenericValue Op1 = getOperandValue(CE->getOperand(1), SF);
+ GenericValue Dest;
+ Type * Ty = CE->getOperand(0)->getType();
+ switch (CE->getOpcode()) {
+ case Instruction::Add: Dest.IntVal = Op0.IntVal + Op1.IntVal; break;
+ case Instruction::Sub: Dest.IntVal = Op0.IntVal - Op1.IntVal; break;
+ case Instruction::Mul: Dest.IntVal = Op0.IntVal * Op1.IntVal; break;
+ case Instruction::FAdd: executeFAddInst(Dest, Op0, Op1, Ty); break;
+ case Instruction::FSub: executeFSubInst(Dest, Op0, Op1, Ty); break;
+ case Instruction::FMul: executeFMulInst(Dest, Op0, Op1, Ty); break;
+ case Instruction::FDiv: executeFDivInst(Dest, Op0, Op1, Ty); break;
+ case Instruction::FRem: executeFRemInst(Dest, Op0, Op1, Ty); break;
+ case Instruction::SDiv: Dest.IntVal = Op0.IntVal.sdiv(Op1.IntVal); break;
+ case Instruction::UDiv: Dest.IntVal = Op0.IntVal.udiv(Op1.IntVal); break;
+ case Instruction::URem: Dest.IntVal = Op0.IntVal.urem(Op1.IntVal); break;
+ case Instruction::SRem: Dest.IntVal = Op0.IntVal.srem(Op1.IntVal); break;
+ case Instruction::And: Dest.IntVal = Op0.IntVal & Op1.IntVal; break;
+ case Instruction::Or: Dest.IntVal = Op0.IntVal | Op1.IntVal; break;
+ case Instruction::Xor: Dest.IntVal = Op0.IntVal ^ Op1.IntVal; break;
+ case Instruction::Shl:
+ Dest.IntVal = Op0.IntVal.shl(Op1.IntVal.getZExtValue());
+ break;
+ case Instruction::LShr:
+ Dest.IntVal = Op0.IntVal.lshr(Op1.IntVal.getZExtValue());
+ break;
+ case Instruction::AShr:
+ Dest.IntVal = Op0.IntVal.ashr(Op1.IntVal.getZExtValue());
+ break;
+ default:
+ dbgs() << "Unhandled ConstantExpr: " << *CE << "\n";
+ llvm_unreachable("Unhandled ConstantExpr");
+ }
+ return Dest;
+}
+
+GenericValue Interpreter::getOperandValue(Value *V, ExecutionContext &SF) {
+ if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
+ return getConstantExprValue(CE, SF);
+ } else if (Constant *CPV = dyn_cast<Constant>(V)) {
+ return getConstantValue(CPV);
+ } else if (GlobalValue *GV = dyn_cast<GlobalValue>(V)) {
+ return PTOGV(getPointerToGlobal(GV));
+ } else {
+ return SF.Values[V];
+ }
+}
+
//===----------------------------------------------------------------------===//
// Dispatch and Execution Code
//===----------------------------------------------------------------------===//
StackFrame.CurFunction = F;
// Special handling for external functions.
- if (F->isExternal()) {
+ if (F->isDeclaration()) {
GenericValue Result = callExternalFunction (F, ArgVals);
// Simulate a 'ret' instruction of the appropriate type.
popStackAndReturnValueToCaller (F->getReturnType (), Result);
// Handle non-varargs arguments...
unsigned i = 0;
- for (Function::arg_iterator AI = F->arg_begin(), E = F->arg_end(); 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());
}
+
void Interpreter::run() {
while (!ECStack.empty()) {
// Interpret a single instruction & increment the "PC".
// Track the number of dynamic instructions executed.
++NumDynamicInsts;
- DOUT << "About to interpret: " << I;
+ DEBUG(dbgs() << "About to interpret: " << I);
visit(I); // Dispatch to one of the visit* methods...
+#if 0
+ // This is not safe, as visiting the instruction could lower it and free I.
+DEBUG(
+ if (!isa<CallInst>(I) && !isa<InvokeInst>(I) &&
+ I.getType() != Type::VoidTy) {
+ dbgs() << " --> ";
+ const GenericValue &Val = SF.Values[&I];
+ switch (I.getType()->getTypeID()) {
+ default: llvm_unreachable("Invalid GenericValue Type");
+ case Type::VoidTyID: dbgs() << "void"; break;
+ case Type::FloatTyID: dbgs() << "float " << Val.FloatVal; break;
+ case Type::DoubleTyID: dbgs() << "double " << Val.DoubleVal; break;
+ case Type::PointerTyID: dbgs() << "void* " << intptr_t(Val.PointerVal);
+ break;
+ case Type::IntegerTyID:
+ dbgs() << "i" << Val.IntVal.getBitWidth() << " "
+ << Val.IntVal.toStringUnsigned(10)
+ << " (0x" << Val.IntVal.toStringUnsigned(16) << ")\n";
+ break;
+ }
+ });
+#endif
}
}
projects / oota-llvm.git / blobdiff