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Kmake/deps/v8/test/mjsunit/turboshaft/maglev-frontend/shift_left.js
2026-05-26 23:36:42 -07:00

18 lines
586 B
JavaScript

// Copyright 2024 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 --turbolev --turbofan
function shift_left(val) {
// JS spec says that the rhs of a shift should be taken modulo 32. As a
// result, `1 << 32` is `1 << 0`, which is `1`.
return 1 << (32 - val);
}
%PrepareFunctionForOptimization(shift_left);
assertEquals(1, shift_left(0));
assertEquals(1, shift_left(0));
%OptimizeFunctionOnNextCall(shift_left);
assertEquals(1, shift_left(0));