mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-11-04 08:04:37 +08:00
Malte Ubl
2372b75ec2
Speed is a third native optimization posture next to release (default, -O2) and dev (-O0). It is optimized exactly like release at the C/LLVM level and is the switch for optimizations that trade executable size and build time for run-time speed, so the default release build stays inside the binary-size budget. - backend/optimization.ts: the NativeOptimization type, its -O class, and cache-key helpers. Release keeps its historical key shapes (absent). - CLI: build/run/cache warm accept speed; usage text names the trade. Bootstrap's routed executable cache mirrors the posture. - Early executable cache keys and native-feature validation include speed, so release, dev, and speed entries never satisfy one another. - Runtime packs: an optional executable `speed` flavor (-O2, only beside release). Speed links it when present and the release objects otherwise; library modes link their release flavor. The sanitizer lane follows the same flavor key. - Library profiles accept "speed". - WASI release-only linker flags apply to speed too. - bench-runtime: --baseline-optimization/--candidate-optimization and a per-contender cold_build_ms. Release executables are byte-identical to the stack tip for all 14 benchmark workloads (macOS arm64, sha256 of executables built from both trees).
31 lines
1.3 KiB
TypeScript
31 lines
1.3 KiB
TypeScript
import { expect, test } from "vitest";
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import {
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NATIVE_OPTIMIZATIONS,
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isNativeOptimization,
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optimizationClass,
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optimizationField,
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optimizationKeyParts,
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} from "./optimization.js";
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test("postures parse exactly and speed shares release's optimization class", () => {
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expect(NATIVE_OPTIMIZATIONS).toEqual(["release", "dev", "speed"]);
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for (const value of NATIVE_OPTIMIZATIONS) expect(isNativeOptimization(value)).toBe(true);
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for (const value of ["Release", "fast", "O2", "", undefined, null, 2])
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expect(isNativeOptimization(value)).toBe(false);
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expect(optimizationClass(undefined)).toBe("release");
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expect(optimizationClass("release")).toBe("release");
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expect(optimizationClass("speed")).toBe("release");
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expect(optimizationClass("dev")).toBe("dev");
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});
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test("release keeps historical key shapes while dev and speed are keyed apart", () => {
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expect(optimizationKeyParts(undefined)).toEqual([]);
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expect(optimizationKeyParts("release")).toEqual([]);
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expect(optimizationKeyParts("dev")).toEqual(["optimization-dev"]);
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expect(optimizationKeyParts("speed")).toEqual(["optimization-speed"]);
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expect(optimizationField("release")).toEqual({});
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expect(optimizationField(undefined)).toEqual({});
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expect(optimizationField("dev")).toEqual({ optimization: "dev" });
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expect(optimizationField("speed")).toEqual({ optimization: "speed" });
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});
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