[libcxx-commits] [libcxx] [libc++] Add an ABI flag to optimize mersenne_twister_engine (PR #206423)

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darker --check --diff -r origin/main...HEAD libcxx/utils/libcxx/test/features/libcxx_macros.py
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``````````diff
--- libcxx_macros.py	2026-07-02 08:41:08.000000 +0000
+++ libcxx_macros.py	2026-07-02 08:42:26.069709 +0000
@@ -33,11 +33,11 @@
     "_LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE": "libcpp-has-abi-fix-unordered-container-size-type",
     "_LIBCPP_DEPRECATED_ABI_DISABLE_PAIR_TRIVIAL_COPY_CTOR": "libcpp-deprecated-abi-disable-pair-trivial-copy-ctor",
     "_LIBCPP_ABI_NO_COMPRESSED_PAIR_PADDING": "libcpp-abi-no-compressed-pair-padding",
     "_LIBCPP_PSTL_BACKEND_LIBDISPATCH": "libcpp-pstl-backend-libdispatch",
     "_LIBCPP_ABI_USE_SMALL_DEQUE_BLOCK_SIZE": "libcpp-abi-use-small-deque-block-size",
-    "_LIBCPP_ABI_VECTORIZED_MERSENNE_TWISTER_ENGINE": "libcpp-abi-vectorized-mersenne-twister-engine"
+    "_LIBCPP_ABI_VECTORIZED_MERSENNE_TWISTER_ENGINE": "libcpp-abi-vectorized-mersenne-twister-engine",
 }
 for macro, feature in macros.items():
     features.append(
         Feature(
             name=lambda cfg, m=macro, f=feature: f + ("={}".format(compilerMacros(cfg)[m]) if compilerMacros(cfg)[m] else ""),

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https://github.com/llvm/llvm-project/pull/206423