a345a442d3
- Add d8.file.read() and d8.file.execute() helpers - Change tools and tests to use new d8.file helper - Unify error throwing in v8::Shell::ReadFile Change-Id: I5ef4cb27f217508a367106f01e872a4059d5e399 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2928505 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Reviewed-by: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#74883}
27 lines
1.0 KiB
JavaScript
27 lines
1.0 KiB
JavaScript
// Copyright 2020 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: --experimental-wasm-simd
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d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
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// Regression test to exercise Liftoff's i64x2.shr_s codegen, which back up rcx
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// to a scratch register, and immediately overwrote the backup, then later
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// restoring the incorrect value. See https://crbug.com/v8/10752 and
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// https://crbug.com/1111522 for more.
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const builder = new WasmModuleBuilder();
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// i64x2.shr_s shifts a v128 (with all bits set), by 1, then drops the result.
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// The function returns param 2, which should be unmodified.
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builder.addFunction(undefined, kSig_i_iii).addBodyWithEnd([
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kSimdPrefix, kExprS128Const, ...new Array(16).fill(0xff),
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kExprI32Const, 0x01,
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kSimdPrefix, kExprI64x2ShrS, 0x01,
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kExprDrop,
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kExprLocalGet, 0x02,
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kExprEnd,
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]);
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builder.addExport('main', 0);
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const instance = builder.instantiate();
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assertEquals(3, instance.exports.main(1, 2, 3));
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