fix(mimalloc): bump pin, allowlist outline-atomic relax/rel variants, update initializer count

- Pin → 09fed41b (adds purge-bit-restore on failed claim)
- aarch64 allowlist: add ldclr8_relax, ldset8_relax, swp8_rel, swp8_relax —
  same compiler-rt outline-atomics family as the existing entries, just the
  relaxed/release memory-order variants that dev3 bitmap code reaches
- static-initializers.test: assertion now matches the comment (was already
  written for v3)

Author: Jarred-Sumner

scripts/build/deps/mimalloc.ts

@@ -5,7 +5,7 @@
 
 import type { Dependency, NestedCmakeBuild, Provides } from "../source.ts";
 
-const MIMALLOC_COMMIT = "2e94216f7faea0a62c037bef30b1e05ebdf86360";
+const MIMALLOC_COMMIT = "09fed41b098f2f329b2d8cfa0ee4fb55b21c53fa";
 
 export const mimalloc: Dependency = {
   name: "mimalloc",

scripts/verify-baseline-static/allowlist-aarch64.txt

@@ -94,6 +94,7 @@ __aarch64_ldclr1_acq_rel  [LSE]
 __aarch64_ldclr2_acq_rel  [LSE]
 __aarch64_ldclr4_acq_rel  [LSE]
 __aarch64_ldclr8_acq_rel  [LSE]
+__aarch64_ldclr8_relax    [LSE]
 __aarch64_ldeor1_acq_rel  [LSE]
 __aarch64_ldeor2_acq_rel  [LSE]
 __aarch64_ldeor4_acq_rel  [LSE]
@@ -102,6 +103,7 @@ __aarch64_ldset1_acq_rel  [LSE]
 __aarch64_ldset2_acq_rel  [LSE]
 __aarch64_ldset4_acq_rel  [LSE]
 __aarch64_ldset8_acq_rel  [LSE]
+__aarch64_ldset8_relax    [LSE]
 __aarch64_swp1_acq        [LSE]
 __aarch64_swp1_acq_rel    [LSE]
 __aarch64_swp1_relax      [LSE]
@@ -110,6 +112,8 @@ __aarch64_swp4_acq        [LSE]
 __aarch64_swp4_acq_rel    [LSE]
 __aarch64_swp4_rel        [LSE]
 __aarch64_swp8_acq_rel    [LSE]
+__aarch64_swp8_rel        [LSE]
+__aarch64_swp8_relax      [LSE]
 
 
 # ----------------------------------------------------------------------------

test/js/bun/perf/static-initializers.test.ts

@@ -68,6 +68,6 @@ describe("static initializers", () => {
     expect(
       bunInitializers.length,
       `Do not add static initializers to Bun. Static initializers are called when Bun starts up, regardless of whether you use the variables or not. This makes Bun slower.`,
-    ).toBe(process.arch === "arm64" ? 1 : 2);
+    ).toBe(process.arch === "arm64" ? 2 : 3);
   });
 });