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>
58 lines
2.3 KiB
JavaScript
58 lines
2.3 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: --wasm-deopt --allow-natives-syntax
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// Flags: --wasm-inlining --liftoff --no-jit-fuzzing
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d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
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(function TestDeoptMetrics() {
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// This can be non-zero in certain variants (e.g. `code_serializer`).
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const initialDeoptCount = %WasmDeoptsExecutedCount();
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let builder = new WasmModuleBuilder();
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let funcRefT = builder.addType(kSig_i_ii);
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builder.addFunction("add", funcRefT)
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.addBody([kExprLocalGet, 0, kExprLocalGet, 1, kExprI32Add])
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.exportFunc();
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builder.addFunction("mul", funcRefT)
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.addBody([kExprLocalGet, 0, kExprLocalGet, 1, kExprI32Mul])
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.exportFunc();
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let mainSig =
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makeSig([kWasmI32, kWasmI32, wasmRefType(funcRefT)], [kWasmI32]);
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builder.addFunction("main", mainSig)
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.addLocals(kWasmI32, 1)
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.addBody([
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kExprLocalGet, 0,
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kExprLocalGet, 1,
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kExprLocalGet, 2,
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kExprCallRef, funcRefT,
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]).exportFunc();
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let wasm = builder.instantiate().exports;
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const initialDeoptCountMain = %WasmDeoptsExecutedForFunction(wasm.main);
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assertEquals(initialDeoptCount, %WasmDeoptsExecutedCount());
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assertEquals(42, wasm.main(12, 30, wasm.add));
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%WasmTierUpFunction(wasm.main);
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assertEquals(initialDeoptCount, %WasmDeoptsExecutedCount());
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assertEquals(360, wasm.main(12, 30, wasm.mul));
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assertEquals(initialDeoptCount + 1, %WasmDeoptsExecutedCount());
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%WasmTierUpFunction(wasm.main);
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assertEquals(42, wasm.main(12, 30, wasm.add));
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assertEquals(360, wasm.main(12, 30, wasm.mul));
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assertEquals(initialDeoptCount + 1, %WasmDeoptsExecutedCount());
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assertEquals(0, %WasmDeoptsExecutedForFunction(wasm.add));
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assertEquals(0, %WasmDeoptsExecutedForFunction(wasm.mul));
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assertEquals(initialDeoptCountMain + 1,
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%WasmDeoptsExecutedForFunction(wasm.main));
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// A new instance shares the same counters for deopts.
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let wasm2 = builder.instantiate().exports;
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assertEquals(0, %WasmDeoptsExecutedForFunction(wasm2.add));
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assertEquals(0, %WasmDeoptsExecutedForFunction(wasm2.mul));
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assertEquals(initialDeoptCountMain + 1,
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%WasmDeoptsExecutedForFunction(wasm2.main));
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})();
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