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// Copyright 2023 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: --experimental-wasm-stringref --allow-natives-syntax
// Flags: --trace-wasm-inlining --liftoff
d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
let builder = new WasmModuleBuilder();
let sig_w_w = makeSig([kWasmStringRef], [kWasmStringRef]);
let toLowerCase = builder.addImport("m", "toLowerCase", sig_w_w);
builder.addFunction('call_tolower', sig_w_w).exportFunc().addBody([
kExprLocalGet, 0,
kExprCallFunction, toLowerCase,
]);
let module = builder.toModule();
let recognizable = Function.prototype.call.bind(String.prototype.toLowerCase);
let recognizable_imports = { m: { toLowerCase: recognizable } };
let instance1 = new WebAssembly.Instance(module, recognizable_imports);
let call_tolower = instance1.exports.call_tolower;
call_tolower("ABC");
%WasmTierUpFunction(call_tolower);
call_tolower("ABC");
// Creating a second instance with identical imports should not cause
// recompilation.
console.log("Second instance.");
let instance2 = new WebAssembly.Instance(module, recognizable_imports);
let call_tolower2 = instance2.exports.call_tolower;
call_tolower2("DEF");
console.log("Still optimized: " + %IsTurboFanFunction(call_tolower2));
// Creating a third instance with different imports must not reuse the
// existing optimized code.
console.log("Third instance.");
let other_imports = { m: { toLowerCase: () => "foo" } };
let instance3 = new WebAssembly.Instance(module, other_imports);
let call_tolower3 = instance3.exports.call_tolower;
call_tolower3("GHI");
console.log("Still optimized: " + %IsTurboFanFunction(call_tolower3));
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