-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];
- }
-}
-