Signedness left_signedness,
const Operator* shift_op) {
JSBinopReduction r(this, node);
- Type* reduce_type = r.IsStrong() ? Type::Number() : Type::Primitive();
- if (r.BothInputsAre(reduce_type)) {
- r.ConvertInputsForShift(left_signedness);
- return r.ChangeToPureOperator(shift_op, Type::Integral32());
+ if (r.IsStrong()) {
+ if (r.BothInputsAre(Type::Number())) {
+ r.ConvertInputsForShift(left_signedness);
+ return r.ChangeToPureOperator(shift_op);
+ }
+ return NoChange();
}
- return NoChange();
+ Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
+ r.ConvertInputsToNumber(frame_state);
+ r.ConvertInputsForShift(left_signedness);
+ return r.ChangeToPureOperator(shift_op);
}
--- /dev/null
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+var f = (function() {
+ "use asm";
+ function f(x, y) {
+ return x << y;
+ }
+ return f;
+})();
+
+var counter = 0;
+
+var deopt = { toString : function() {
+ %DeoptimizeFunction(f);
+ counter++;
+ return "2";
+} };
+
+var o = { toString : function() {
+ counter++;
+ return "1";
+} };
+
+counter = 0;
+assertEquals(4, f(deopt, o));
+assertEquals(2, counter);
+
+%OptimizeFunctionOnNextCall(f);
+counter = 0;
+assertEquals(4, f(o, deopt));
+assertEquals(2, counter);
+
+%OptimizeFunctionOnNextCall(f);
+counter = 0;
+assertEquals(8, f(deopt, deopt));
+assertEquals(2, counter);