37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
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// 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 --turbo-inline-js-wasm-calls
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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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let builder = new WasmModuleBuilder();
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builder
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.addFunction("f", kSig_v_l) // i64 -> ()
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.addBody([])
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.exportFunc();
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let module = builder.instantiate();
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function TestBigIntTruncatedToWord64(x) {
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return module.exports.f(x + x);
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}
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let bi = (2n ** (2n ** 29n + 2n ** 29n - 1n));
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// Expect BigIntTooBig for adding bi to itself
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assertThrows(() => TestBigIntTruncatedToWord64(bi), RangeError);
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%PrepareFunctionForOptimization(TestBigIntTruncatedToWord64);
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TestBigIntTruncatedToWord64(1n);
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TestBigIntTruncatedToWord64(2n);
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%OptimizeFunctionOnNextCall(TestBigIntTruncatedToWord64);
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// After optimization, bi should be checked as BigInt and
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// truncated to Word64, which is then passed to Int64Add.
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// Thus no BigIntTooBig exception is expected.
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TestBigIntTruncatedToWord64(bi);
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assertOptimized(TestBigIntTruncatedToWord64);
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