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d8c97e4857
PR-URL: https://github.com/nodejs/node/pull/50115 Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
23 lines
744 B
JavaScript
23 lines
744 B
JavaScript
// Copyright 2023 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --turboshaft --turboshaft-verify-reductions
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function f() {
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// By allocating an array and storing into it, we delay the constant folding
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// of `arr[0] * arr[1]` to the backend. The corresponding
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// OverflowCheckedBinopOp should thus reach Turboshaft's
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// MachineOptimizationReducer with 2 constant inputs, leading to a reduction
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// that replaces it with a Tuple.
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let arr = [0, 0];
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arr[0] = 42
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arr[1] = 27;
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return arr[0] * arr[1];
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}
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%PrepareFunctionForOptimization(f);
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print(f());
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%OptimizeFunctionOnNextCall(f);
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print(f());
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