bjoernager/rust
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Re-add support for integer unary ops.

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This commit is contained in:
Scott Olson 2016-03-07 07:57:08 -06:00
parent f72b0c9b12
commit e41af43dbf
2 changed files with 15 additions and 14 deletions
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21
src/interpreter.rs
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@ -285,16 +285,17 @@ impl<'a, 'tcx: 'a> Interpreter<'a, 'tcx> {
BinaryOp(bin_op, ref left, ref right) =>
self.eval_binary_op(bin_op, left, right, dest),
// UnaryOp(un_op, ref operand) => {
// let ptr = try!(self.operand_to_ptr(operand));
// let m = try!(self.memory.read_int(ptr));
// let n = match (un_op, ptr.repr) {
// (mir::UnOp::Not, Repr::Int) => !m,
// (mir::UnOp::Neg, Repr::Int) => -m,
// (_, ref p) => panic!("unhandled binary operation: {:?}({:?})", un_op, p),
// };
// self.memory.write_int(dest, n)
// }
UnaryOp(un_op, ref operand) => {
// FIXME(tsion): Check for non-integer operations.
let ptr = try!(self.operand_to_ptr(operand));
let m = try!(self.memory.read_int(ptr));
use rustc::mir::repr::UnOp::*;
let n = match un_op {
Not => !m,
Neg => -m,
};
self.memory.write_int(dest, n)
}
Aggregate(mir::AggregateKind::Tuple, ref operands) => {
match dest_repr {