diff options
Diffstat (limited to 'lib/ExecutionEngine/Interpreter/Execution.cpp')
| -rw-r--r-- | lib/ExecutionEngine/Interpreter/Execution.cpp | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/lib/ExecutionEngine/Interpreter/Execution.cpp b/lib/ExecutionEngine/Interpreter/Execution.cpp index 456e2a8f3c..2ecd72eb3b 100644 --- a/lib/ExecutionEngine/Interpreter/Execution.cpp +++ b/lib/ExecutionEngine/Interpreter/Execution.cpp @@ -66,7 +66,9 @@ static GenericValue executeShlInst(GenericValue Src1, GenericValue Src2, const Type *Ty); static GenericValue executeShrInst(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()) { @@ -139,7 +141,10 @@ GenericValue Interpreter::getConstantExprValue (ConstantExpr *CE, return executeShrInst(getOperandValue(CE->getOperand(0), SF), getOperandValue(CE->getOperand(1), SF), CE->getOperand(0)->getType()); - + case Instruction::Select: + return executeSelectInst(getOperandValue(CE->getOperand(0), SF), + getOperandValue(CE->getOperand(1), SF), + getOperandValue(CE->getOperand(2), SF)); default: std::cerr << "Unhandled ConstantExpr: " << CE << "\n"; abort(); @@ -518,6 +523,21 @@ void Interpreter::visitBinaryOperator(BinaryOperator &I) { SetValue(&I, R, SF); } +static GenericValue executeSelectInst(GenericValue Src1, GenericValue Src2, + GenericValue Src3) { + return Src1.BoolVal ? Src2 : Src3; +} + +void Interpreter::visitSelectInst(SelectInst &I) { + ExecutionContext &SF = ECStack.back(); + GenericValue Src1 = getOperandValue(I.getOperand(0), SF); + GenericValue Src2 = getOperandValue(I.getOperand(1), SF); + GenericValue Src3 = getOperandValue(I.getOperand(2), SF); + GenericValue R = executeSelectInst(Src1, Src2, Src3); + SetValue(&I, R, SF); +} + + //===----------------------------------------------------------------------===// // Terminator Instruction Implementations //===----------------------------------------------------------------------===// |