#include "llvm/ADT/Statistic.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include <algorithm>
#include <cmath>
-#include <cstring>
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"));
// Various Helper Functions
//===----------------------------------------------------------------------===//
-static inline uint64_t doSignExtension(uint64_t Val, const IntegerType* ITy) {
- // Determine if the value is signed or not
- bool isSigned = (Val & (1 << (ITy->getBitWidth()-1))) != 0;
- // If its signed, extend the sign bits
- if (isSigned)
- Val |= ~ITy->getBitMask();
- return Val;
-}
-
static void SetValue(Value *V, GenericValue Val, ExecutionContext &SF) {
SF.Values[V] = Val;
}
-void Interpreter::initializeExecutionEngine() {
- TheEE = this;
-}
-
//===----------------------------------------------------------------------===//
// Binary Instruction Implementations
//===----------------------------------------------------------------------===//
Dest.TY##Val = Src1.TY##Val OP Src2.TY##Val; \
break
-#define IMPLEMENT_INTEGER_BINOP1(OP, TY) \
- case Type::IntegerTyID: { \
- Dest.IntVal = Src1.IntVal OP Src2.IntVal; \
- break; \
- }
-
-
-static void executeAddInst(GenericValue &Dest, GenericValue Src1,
- GenericValue Src2, const Type *Ty) {
+static void executeFAddInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
switch (Ty->getTypeID()) {
- IMPLEMENT_INTEGER_BINOP1(+, Ty);
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);
}
}
-static void executeSubInst(GenericValue &Dest, GenericValue Src1,
- GenericValue Src2, const Type *Ty) {
+static void executeFSubInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
switch (Ty->getTypeID()) {
- IMPLEMENT_INTEGER_BINOP1(-, Ty);
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);
}
}
-static void executeMulInst(GenericValue &Dest, GenericValue Src1,
- GenericValue Src2, const Type *Ty) {
+static void executeFMulInst(GenericValue &Dest, GenericValue Src1,
+ GenericValue Src2, Type *Ty) {
switch (Ty->getTypeID()) {
- IMPLEMENT_INTEGER_BINOP1(*, Ty);
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);
}
}
static void executeFDivInst(GenericValue &Dest, GenericValue Src1,
- GenericValue Src2, const Type *Ty) {
+ GenericValue Src2, Type *Ty) {
switch (Ty->getTypeID()) {
IMPLEMENT_BINARY_OPERATOR(/, Float);
IMPLEMENT_BINARY_OPERATOR(/, Double);
default:
- cerr << "Unhandled type for FDiv instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FDiv instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
}
static void executeFRemInst(GenericValue &Dest, GenericValue Src1,
- GenericValue Src2, const Type *Ty) {
+ 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);
}
}
break;
static GenericValue executeICMP_EQ(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_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_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_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_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_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_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_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_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_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_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
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);
break
static GenericValue executeFCMP_OEQ(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(==, Float);
IMPLEMENT_FCMP(==, Double);
default:
- cerr << "Unhandled type for FCmp EQ instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp EQ instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeFCMP_ONE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(!=, Float);
IMPLEMENT_FCMP(!=, Double);
default:
- cerr << "Unhandled type for FCmp NE instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp NE instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeFCMP_OLE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(<=, Float);
IMPLEMENT_FCMP(<=, Double);
default:
- cerr << "Unhandled type for FCmp LE instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp LE instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeFCMP_OGE(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(>=, Float);
IMPLEMENT_FCMP(>=, Double);
default:
- cerr << "Unhandled type for FCmp GE instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp GE instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeFCMP_OLT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(<, Float);
IMPLEMENT_FCMP(<, Double);
default:
- cerr << "Unhandled type for FCmp LT instruction: " << *Ty << "\n";
- abort();
+ dbgs() << "Unhandled type for FCmp LT instruction: " << *Ty << "\n";
+ llvm_unreachable(0);
}
return Dest;
}
static GenericValue executeFCMP_OGT(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
switch (Ty->getTypeID()) {
IMPLEMENT_FCMP(>, Float);
IMPLEMENT_FCMP(>, Double);
default:
- cerr << "Unhandled type for FCmp GT 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 == Type::FloatTy) { \
+ if (TY->isFloatTy()) { \
if (X.FloatVal != X.FloatVal || Y.FloatVal != Y.FloatVal) { \
Dest.IntVal = APInt(1,true); \
return Dest; \
static GenericValue executeFCMP_UEQ(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ 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) {
+ 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) {
+ 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) {
+ 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) {
+ 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) {
+ 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) {
+ Type *Ty) {
GenericValue Dest;
- if (Ty == Type::FloatTy)
+ if (Ty->isFloatTy())
Dest.IntVal = APInt(1,(Src1.FloatVal == Src1.FloatVal &&
Src2.FloatVal == Src2.FloatVal));
else
}
static GenericValue executeFCMP_UNO(GenericValue Src1, GenericValue Src2,
- const Type *Ty) {
+ Type *Ty) {
GenericValue Dest;
- if (Ty == Type::FloatTy)
+ if (Ty->isFloatTy())
Dest.IntVal = APInt(1,(Src1.FloatVal != Src1.FloatVal ||
Src2.FloatVal != Src2.FloatVal));
else
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
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();
+ dbgs() << "Don't know how to handle this FCmp predicate!\n-->" << I;
+ llvm_unreachable(0);
}
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);
return Result;
}
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: executeAddInst (R, Src1, Src2, Ty); break;
- case Instruction::Sub: executeSubInst (R, Src1, Src2, Ty); break;
- case Instruction::Mul: executeMulInst (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::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::Or: R.IntVal = Src1.IntVal | Src2.IntVal; break;
case Instruction::Xor: R.IntVal = Src1.IntVal ^ Src2.IntVal; break;
default:
- cerr << "Don't know how to handle this binary operator!\n-->" << I;
- abort();
+ dbgs() << "Don't know how to handle this binary operator!\n-->" << I;
+ llvm_unreachable(0);
}
SetValue(&I, R, SF);
// 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.IntVal.zextOrTrunc(32).getZExtValue());
+ 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->isInteger()) { // Nonvoid return type?
+ if (RetTy && !RetTy->isVoidTy()) { // Nonvoid return type?
ExitValue = Result; // Capture the exit value of the program
} else {
memset(&ExitValue.Untyped, 0, sizeof(ExitValue.Untyped));
// 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) {
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)
- .IntVal != 0) {
- 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 =
// Allocate enough memory to hold the type...
void *Memory = malloc(MemToAlloc);
- DOUT << "Allocated Type: " << *Ty << " (" << TypeSize << " bytes) x "
- << NumElements << " (Total: " << MemToAlloc << ") at "
- << uintptr_t(Memory) << '\n';
+ 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!");
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());
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);
GenericValue Result;
Result.PointerVal = ((char*)getOperandValue(Ptr, SF).PointerVal) + Total;
- DOUT << "GEP Index " << Total << " bytes.\n";
+ 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);
}
LoadValueFromMemory(Result, Ptr, I.getType());
SetValue(&I, Result, SF);
if (I.isVolatile() && PrintVolatile)
- cerr << "Volatile load " << I;
+ dbgs() << "Volatile load " << I;
}
void Interpreter::visitStoreInst(StoreInst &I) {
StoreValueToMemory(Val, (GenericValue *)GVTOP(SRC),
I.getOperand(0)->getType());
if (I.isVolatile() && PrintVolatile)
- cerr << "Volatile store: " << I;
+ dbgs() << "Volatile store: " << I;
}
//===----------------------------------------------------------------------===//
// Check to see if this is an intrinsic function call...
Function *F = CS.getCalledFunction();
- if (F && F->isDeclaration ())
+ if (F && F->isDeclaration())
switch (F->getIntrinsicID()) {
case Intrinsic::not_intrinsic:
break;
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(i32) into i32.
- // We do this by zero or sign extending the value as appropriate
- // according to the parameter attributes
- const Type *Ty = V->getType();
- if (Ty->isInteger() && (ArgVals.back().IntVal.getBitWidth() < 32)) {
- if (CS.paramHasAttr(pNum, Attribute::ZExt))
- ArgVals.back().IntVal = ArgVals.back().IntVal.zext(32);
- else if (CS.paramHasAttr(pNum, Attribute::SExt))
- ArgVals.back().IntVal = ArgVals.back().IntVal.sext(32);
- }
}
// To handle indirect calls, we must get the pointer value from the argument
SetValue(&I, Dest, SF);
}
-GenericValue Interpreter::executeTruncInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeTruncInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- const IntegerType *DITy = cast<IntegerType>(DstTy);
+ IntegerType *DITy = cast<IntegerType>(DstTy);
unsigned DBitWidth = DITy->getBitWidth();
Dest.IntVal = Src.IntVal.trunc(DBitWidth);
return Dest;
}
-GenericValue Interpreter::executeSExtInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeSExtInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- const IntegerType *DITy = cast<IntegerType>(DstTy);
+ IntegerType *DITy = cast<IntegerType>(DstTy);
unsigned DBitWidth = DITy->getBitWidth();
Dest.IntVal = Src.IntVal.sext(DBitWidth);
return Dest;
}
-GenericValue Interpreter::executeZExtInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeZExtInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- const IntegerType *DITy = cast<IntegerType>(DstTy);
+ IntegerType *DITy = cast<IntegerType>(DstTy);
unsigned DBitWidth = DITy->getBitWidth();
Dest.IntVal = Src.IntVal.zext(DBitWidth);
return Dest;
}
-GenericValue Interpreter::executeFPTruncInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeFPTruncInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(SrcVal->getType() == Type::DoubleTy && DstTy == Type::FloatTy &&
+ assert(SrcVal->getType()->isDoubleTy() && DstTy->isFloatTy() &&
"Invalid FPTrunc instruction");
Dest.FloatVal = (float) Src.DoubleVal;
return Dest;
}
-GenericValue Interpreter::executeFPExtInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeFPExtInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(SrcVal->getType() == Type::FloatTy && DstTy == Type::DoubleTy &&
+ assert(SrcVal->getType()->isFloatTy() && DstTy->isDoubleTy() &&
"Invalid FPTrunc instruction");
Dest.DoubleVal = (double) Src.FloatVal;
return Dest;
}
-GenericValue Interpreter::executeFPToUIInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeFPToUIInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
- const Type *SrcTy = SrcVal->getType();
+ Type *SrcTy = SrcVal->getType();
uint32_t DBitWidth = cast<IntegerType>(DstTy)->getBitWidth();
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(SrcTy->isFloatingPoint() && "Invalid FPToUI instruction");
+ assert(SrcTy->isFloatingPointTy() && "Invalid FPToUI instruction");
if (SrcTy->getTypeID() == Type::FloatTyID)
Dest.IntVal = APIntOps::RoundFloatToAPInt(Src.FloatVal, DBitWidth);
return Dest;
}
-GenericValue Interpreter::executeFPToSIInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeFPToSIInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
- const Type *SrcTy = SrcVal->getType();
+ Type *SrcTy = SrcVal->getType();
uint32_t DBitWidth = cast<IntegerType>(DstTy)->getBitWidth();
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(SrcTy->isFloatingPoint() && "Invalid FPToSI instruction");
+ assert(SrcTy->isFloatingPointTy() && "Invalid FPToSI instruction");
if (SrcTy->getTypeID() == Type::FloatTyID)
Dest.IntVal = APIntOps::RoundFloatToAPInt(Src.FloatVal, DBitWidth);
return Dest;
}
-GenericValue Interpreter::executeUIToFPInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeUIToFPInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(DstTy->isFloatingPoint() && "Invalid UIToFP instruction");
+ assert(DstTy->isFloatingPointTy() && "Invalid UIToFP instruction");
if (DstTy->getTypeID() == Type::FloatTyID)
Dest.FloatVal = APIntOps::RoundAPIntToFloat(Src.IntVal);
return Dest;
}
-GenericValue Interpreter::executeSIToFPInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeSIToFPInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(DstTy->isFloatingPoint() && "Invalid SIToFP instruction");
+ assert(DstTy->isFloatingPointTy() && "Invalid SIToFP instruction");
if (DstTy->getTypeID() == Type::FloatTyID)
Dest.FloatVal = APIntOps::RoundSignedAPIntToFloat(Src.IntVal);
}
-GenericValue Interpreter::executePtrToIntInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executePtrToIntInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
uint32_t DBitWidth = cast<IntegerType>(DstTy)->getBitWidth();
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(isa<PointerType>(SrcVal->getType()) && "Invalid PtrToInt instruction");
+ assert(SrcVal->getType()->isPointerTy() && "Invalid PtrToInt instruction");
Dest.IntVal = APInt(DBitWidth, (intptr_t) Src.PointerVal);
return Dest;
}
-GenericValue Interpreter::executeIntToPtrInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeIntToPtrInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- assert(isa<PointerType>(DstTy) && "Invalid PtrToInt instruction");
+ assert(DstTy->isPointerTy() && "Invalid PtrToInt instruction");
- uint32_t PtrSize = TD.getPointerSizeInBits();
+ unsigned AS = cast<PointerType>(DstTy)->getAddressSpace();
+ uint32_t PtrSize = TD.getPointerSizeInBits(AS);
if (PtrSize != Src.IntVal.getBitWidth())
Src.IntVal = Src.IntVal.zextOrTrunc(PtrSize);
return Dest;
}
-GenericValue Interpreter::executeBitCastInst(Value *SrcVal, const Type *DstTy,
+GenericValue Interpreter::executeBitCastInst(Value *SrcVal, Type *DstTy,
ExecutionContext &SF) {
- const Type *SrcTy = SrcVal->getType();
+ Type *SrcTy = SrcVal->getType();
GenericValue Dest, Src = getOperandValue(SrcVal, SF);
- if (isa<PointerType>(DstTy)) {
- assert(isa<PointerType>(SrcTy) && "Invalid BitCast");
+ if (DstTy->isPointerTy()) {
+ assert(SrcTy->isPointerTy() && "Invalid BitCast");
Dest.PointerVal = Src.PointerVal;
- } else if (DstTy->isInteger()) {
- if (SrcTy == Type::FloatTy) {
- Dest.IntVal.zext(sizeof(Src.FloatVal) * CHAR_BIT);
- Dest.IntVal.floatToBits(Src.FloatVal);
- } else if (SrcTy == Type::DoubleTy) {
- Dest.IntVal.zext(sizeof(Src.DoubleVal) * CHAR_BIT);
- Dest.IntVal.doubleToBits(Src.DoubleVal);
- } else if (SrcTy->isInteger()) {
+ } 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
- assert(0 && "Invalid BitCast");
- } else if (DstTy == Type::FloatTy) {
- if (SrcTy->isInteger())
+ llvm_unreachable("Invalid BitCast");
+ } else if (DstTy->isFloatTy()) {
+ if (SrcTy->isIntegerTy())
Dest.FloatVal = Src.IntVal.bitsToFloat();
else
Dest.FloatVal = Src.FloatVal;
- } else if (DstTy == Type::DoubleTy) {
- if (SrcTy->isInteger())
+ } else if (DstTy->isDoubleTy()) {
+ if (SrcTy->isIntegerTy())
Dest.DoubleVal = Src.IntVal.bitsToDouble();
else
Dest.DoubleVal = Src.DoubleVal;
} else
- assert(0 && "Invalid Bitcast");
+ llvm_unreachable("Invalid Bitcast");
return Dest;
}
GenericValue Dest;
GenericValue Src = ECStack[VAList.UIntPairVal.first]
.VarArgs[VAList.UIntPairVal.second];
- const Type *Ty = I.getType();
+ Type *Ty = I.getType();
switch (Ty->getTypeID()) {
case Type::IntegerTyID: Dest.IntVal = Src.IntVal;
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.
GenericValue Op0 = getOperandValue(CE->getOperand(0), SF);
GenericValue Op1 = getOperandValue(CE->getOperand(1), SF);
GenericValue Dest;
- const Type * Ty = CE->getOperand(0)->getType();
+ Type * Ty = CE->getOperand(0)->getType();
switch (CE->getOpcode()) {
- case Instruction::Add: executeAddInst (Dest, Op0, Op1, Ty); break;
- case Instruction::Sub: executeSubInst (Dest, Op0, Op1, Ty); break;
- case Instruction::Mul: executeMulInst (Dest, Op0, Op1, Ty); break;
+ 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.And(Op1.IntVal); break;
- case Instruction::Or: Dest.IntVal = Op0.IntVal.Or(Op1.IntVal); break;
- case Instruction::Xor: Dest.IntVal = Op0.IntVal.Xor(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;
Dest.IntVal = Op0.IntVal.ashr(Op1.IntVal.getZExtValue());
break;
default:
- cerr << "Unhandled ConstantExpr: " << *CE << "\n";
- abort();
- return GenericValue();
+ dbgs() << "Unhandled ConstantExpr: " << *CE << "\n";
+ llvm_unreachable("Unhandled ConstantExpr");
}
return Dest;
}
// 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.
-#ifndef NDEBUG
+DEBUG(
if (!isa<CallInst>(I) && !isa<InvokeInst>(I) &&
I.getType() != Type::VoidTy) {
- DOUT << " --> ";
+ dbgs() << " --> ";
const GenericValue &Val = SF.Values[&I];
switch (I.getType()->getTypeID()) {
- default: assert(0 && "Invalid GenericValue Type");
- case Type::VoidTyID: DOUT << "void"; break;
- case Type::FloatTyID: DOUT << "float " << Val.FloatVal; break;
- case Type::DoubleTyID: DOUT << "double " << Val.DoubleVal; break;
- case Type::PointerTyID: DOUT << "void* " << intptr_t(Val.PointerVal);
+ 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:
- DOUT << "i" << Val.IntVal.getBitWidth() << " "
- << Val.IntVal.toStringUnsigned(10)
- << " (0x" << Val.IntVal.toStringUnsigned(16) << ")\n";
+ dbgs() << "i" << Val.IntVal.getBitWidth() << " "
+ << Val.IntVal.toStringUnsigned(10)
+ << " (0x" << Val.IntVal.toStringUnsigned(16) << ")\n";
break;
}
- }
-#endif
+ });
#endif
}
}
projects / oota-llvm.git / blobdiff