918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
// Copyright 2024 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 --wasm-inlining
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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.addMemory(16, 32); // Causes the InstanceCache to be used.
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let v_v_index = builder.addType(kSig_v_v);
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let nop = builder.addFunction('nop', v_v_index).addBody([]);
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builder.addDeclarativeElementSegment([nop.index]);
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let trampoline = builder.addFunction('trampoline', v_v_index).exportFunc()
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.addBody([
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kExprRefFunc, nop.index,
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kExprCallRef, v_v_index,
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]);
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let main = builder.addFunction('main', kSig_i_i).exportFunc().addBody([
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kExprTry, kWasmVoid,
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kExprCallFunction, nop.index,
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// The FunctionBodyDecoder assumes that any call can throw, so it marks
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// the {catch_all} block as reachable.
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// The graph builder interface inlines the call and knows
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// that it won't throw, so it considers the {catch_all} block (and
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// everything after it) unreachable.
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kExprI32Const, 42,
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kExprReturn,
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kExprCatchAll,
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kExprEnd,
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// The point of this test: what happens for this instruction when the
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// compiler knows it's emitting unreachable code.
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kExprCallFunction, trampoline.index,
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kExprI32Const, 1,
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]);
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let instance = builder.instantiate();
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for (let i = 0; i < 100; i++) {
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instance.exports.trampoline();
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instance.exports.main(1);
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}
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%WasmTierUpFunction(instance.exports.trampoline);
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%WasmTierUpFunction(instance.exports.main);
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instance.exports.main(1);
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