3333e29f38
This CL supports BigInt modulo operations in turbofan and refactors the code in simplified lowering to avoid boilerplate. Bug: v8:9407 Change-Id: Id9d80bd82a94a50c6684956d1f8e60f99761c517 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3976434 Commit-Queue: Qifan Pan <panq@google.com> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org> Cr-Commit-Position: refs/heads/main@{#84100}
38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
// Copyright 2022 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 --turbofan --no-always-turbofan
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(function OptimizeAndTestOverflow() {
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function f(x, y) {
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return x * y;
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}
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%PrepareFunctionForOptimization(f);
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assertEquals(0n, f(0n, 1n));
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assertEquals(18n, f(2n, 9n));
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%OptimizeFunctionOnNextCall(f);
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assertEquals(70n, f(14n, 5n));
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assertOptimized(f);
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assertEquals(-(2n ** 63n), f(-(2n ** 32n), 2n ** 31n));
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assertOptimized(f);
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// Re-prepare the function before the first deopt to ensure type feedback is
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// not cleared by an untimely gc.
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%PrepareFunctionForOptimization(f);
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assertOptimized(f);
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// CheckedInt64Mul will trigger deopt due to overflow.
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assertEquals(-(2n ** 63n) - 1n, f(-77158673929n, 119537721n));
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if (%Is64Bit()) {
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assertUnoptimized(f);
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assertEquals(0n, f(0n, 1n));
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assertEquals(18n, f(2n, 9n));
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%OptimizeFunctionOnNextCall(f);
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assertEquals(70n, f(14n, 5n));
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assertOptimized(f);
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// Ensure there is no deopt loop.
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assertEquals(-(2n ** 63n) - 1n, f(-77158673929n, 119537721n));
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assertOptimized(f);
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}
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})();
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