e33c13c2a2
First step towards the new exception handling proposal: https://github.com/WebAssembly/exception-handling/issues/125 This is essentially a revert of: "[wasm] Switch to new 'catch' and 'br_on_exn' proposal." The changes are: - "catch" instruction takes a tag immediate, - "rethrow" instruction takes a label immediate, - Add "catch_all" instruction, - Remove "br_on_exn" instruction, - Do not push exceptions on the stack, only the encoded values R=clemensb@chromium.org CC=aheejin@chromium.org Bug: v8:8091 Change-Id: Iea4d8d5a5d3ad50693f645e93c13e8de117aa884 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2484514 Commit-Queue: Thibaud Michaud <thibaudm@chromium.org> Reviewed-by: Clemens Backes <clemensb@chromium.org> Cr-Commit-Position: refs/heads/master@{#71602}
22 lines
641 B
JavaScript
22 lines
641 B
JavaScript
// Copyright 2019 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.
|
|
|
|
// Flags: --expose-wasm --experimental-wasm-eh
|
|
|
|
load('test/mjsunit/wasm/wasm-module-builder.js');
|
|
|
|
let builder = new WasmModuleBuilder();
|
|
let except = builder.addException(kSig_v_i);
|
|
builder.addFunction("rethrow0", kSig_v_v)
|
|
.addBody([
|
|
kExprTry, kWasmStmt,
|
|
kExprI32Const, 23,
|
|
kExprThrow, except,
|
|
kExprCatch, except,
|
|
kExprRethrow, 0,
|
|
kExprEnd,
|
|
]).exportFunc();
|
|
let instance = builder.instantiate();
|
|
instance.exports.rethrow0();
|