Пример #1
0
  static void fixnum_s_eqq(JITOperations& ops, Inliner& i) {
    Value* cmp = ops.check_if_fixnum(i.arg(0));

    Value* imm_value = ops.b().CreateSelect(cmp,
            ops.constant(Qtrue), ops.constant(Qfalse), "is_fixnum");

    i.exception_safe();
    i.set_result(imm_value);
  }
Пример #2
0
  static void call_tuple_put(JITOperations& ops, Inliner& i) {
    Value* rec = i.recv();

    Value* cmp = ops.check_type_bits(rec, rubinius::Tuple::type);

    BasicBlock* is_tuple = ops.new_block("is_tuple");
    BasicBlock* access =   ops.new_block("tuple_put");
    BasicBlock* is_other = i.failure();

    ops.create_conditional_branch(is_tuple, is_other, cmp);

    ops.set_block(is_tuple);

    Value* index_val = i.arg(0);
    Value* fix_cmp = ops.check_if_fixnum(index_val);

    Value* tup = ops.upcast(rec, "Tuple");

    Value* index = ops.fixnum_to_native(index_val);
    Value* full_size = ops.get_tuple_size(tup);
    Value* size_cmp = ops.create_less_than(index, full_size, "is_in_bounds");

    // Combine fix_cmp and size_cmp to validate entry into access code
    Value* access_cmp = ops.create_and(fix_cmp, size_cmp, "access_cmp");
    ops.create_conditional_branch(access, is_other, access_cmp);

    ops.set_block(access);

    Value* value = i.arg(1);

    Value* idx[] = {
      ConstantInt::get(ops.state()->Int32Ty, 0),
      ConstantInt::get(ops.state()->Int32Ty, offset::tuple_field),
      index
    };

    Value* gep = ops.create_gep(tup, idx, 3, "field_pos");

    ops.create_store(value, gep);
    ops.write_barrier(tup, value);

    i.exception_safe();
    i.set_result(value);
  }
Пример #3
0
  static void fixnum_neg(JITOperations& ops, Inliner& i) {
    BasicBlock* use_send = i.failure();
    BasicBlock* inlined = ops.new_block("fixnum_neg");

    Value* self = i.recv();
    Value* cmp = ops.check_if_fixnum(self);
    ops.create_conditional_branch(inlined, use_send, cmp);

    ops.set_block(inlined);
    Value* native = ops.fixnum_strip(self);
    Value* neg = BinaryOperator::CreateSub(
        ops.Zero, native, "to_neg",
        ops.current_block());

    Value* more = BinaryOperator::CreateShl(neg, ops.One, "shl", ops.current_block());
    Value* tagged = BinaryOperator::CreateOr(more, ops.One, "or", ops.current_block());

    i.exception_safe();
    i.set_result(ops.as_obj(tagged));
  }
Пример #4
0
  static void float_op(MathOperation op, Class* klass,
      JITOperations& ops, Inliner& i)
  {
    i.use_send_for_failure();

    Value* self = i.recv();
    ops.check_class(self, klass, i.failure());

    Value* arg = i.arg(0);

    BasicBlock* not_float = ops.new_block();

    ops.check_class(arg, klass, not_float);

    // Float#*(Float)
    Value* farg  = ops.b().CreateBitCast(arg, ops.state()->ptr_type("Float"),
        "arg_float");

    Value* unboxed_rhs = ops.b().CreateLoad(
        ops.b().CreateConstGEP2_32(farg,  0, 1, "arg.value_pos"), "farg");

    BasicBlock* perform = ops.new_block();

    BasicBlock* unbox_block = ops.current_block();

    ops.b().CreateBr(perform);

    // Float#*(Fixnum)
    ops.set_block(not_float);

    ops.verify_guard(ops.check_if_fixnum(arg), i.failure());

    Value* fix_rhs = ops.b().CreateSIToFP(
        ops.fixnum_to_native(arg), unboxed_rhs->getType());

    BasicBlock* convert_block = ops.current_block();

    ops.b().CreateBr(perform);

    // perform operation

    perform->moveAfter(convert_block);
    ops.set_block(perform);

    PHINode* rhs = ops.b().CreatePHI(fix_rhs->getType(), "rhs");
    rhs->addIncoming(unboxed_rhs, unbox_block);
    rhs->addIncoming(fix_rhs, convert_block);

    Value* fself = ops.b().CreateBitCast(self, ops.state()->ptr_type("Float"),
        "self_float");

    Value* lhs = ops.b().CreateLoad(
        ops.b().CreateConstGEP2_32(fself, 0, 1, "self.value_pos"), "fself");

    Value* performed = 0;

    switch(op) {
    case cAdd:
      performed = ops.b().CreateFAdd(lhs, rhs, "float.add");
      break;
    case cSub:
      performed = ops.b().CreateFSub(lhs, rhs, "float.sub");
      break;
    case cMultiply:
      performed = ops.b().CreateFMul(lhs, rhs, "float.mul");
      break;
    case cDivide:
      performed = ops.b().CreateFDiv(lhs, rhs, "float.div");
      break;
    case cMod:
      performed = ops.b().CreateFRem(lhs, rhs, "float.mod");
      break;
    default:
      abort();
    }

    Signature sig(ops.state(), ops.state()->ptr_type("Float"));
    sig << "VM";

    Function* func = sig.function("rbx_float_allocate");
    func->setDoesNotAlias(0, true); // return value

    Value* call_args[] = { ops.vm() };
    CallInst* res = sig.call("rbx_float_allocate", call_args, 1, "result", ops.b());

    ops.b().CreateStore(
        performed,
        ops.b().CreateConstGEP2_32(res, 0, 1));

    i.exception_safe();
    i.set_result(ops.b().CreateBitCast(res, ops.ObjType));
  }