v8/test/mjsunit/regress/wasm/condition-change-during-branch-elimination.js
Camillo Bruni a345a442d3 [d8][mjsunit][tools] Improve d8 file API
- 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}
2021-06-01 13:37:57 +00:00

50 lines
1.5 KiB
JavaScript

// Copyright 2021 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.
d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
// This test creates the situation where BranchElimination's VisitIf sees a
// different condition than the preceding VisitBranch (because an interleaved
// CommonOperatorReducer replaced the condition).
(function foo() {
let builder = new WasmModuleBuilder();
builder.addFunction("main", kSig_v_l)
.addLocals(kWasmI32, 2)
.addBody([
kExprLoop, kWasmVoid,
kExprLocalGet, 0x02,
kExprLocalTee, 0x01,
kExprIf, kWasmVoid,
kExprElse,
kExprLoop, kWasmVoid,
kExprLoop, kWasmVoid,
kExprLocalGet, 0x01,
kExprIf, kWasmVoid,
kExprElse,
kExprLocalGet, 0x02,
kExprBrIf, 0x04,
kExprBr, 0x01,
kExprEnd,
kExprLocalGet, 0x00,
kExprCallFunction, 0x01,
kExprLocalTee, 0x02,
kExprBrIf, 0x00,
kExprEnd,
kExprLocalGet, 0x01,
kExprBrIf, 0x00,
kExprEnd,
kExprEnd,
kExprBr, 0x00,
kExprEnd])
.exportAs("main");
builder.addFunction("callee", kSig_i_l)
.addBody([kExprLocalGet, 0, kExprI32ConvertI64]);
let module = new WebAssembly.Module(builder.toBuffer());
let instance = new WebAssembly.Instance(module);
})();