[libcxx-commits] [libcxx] [libc++] Optimize ctype::to{lower, upper} (PR #145344)

[Zibi Sarbinowski via libcxx-commits]

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@@ -16,6 +16,15 @@ New entries should be added directly below the "Version" header.
 Version 21.0
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+* [libc++] Optimize ctype::to{lower,upper}
+
+  This patch removed __classic_upper_table() and __classic_lower_table(), which were only ever accessed from the dylib.
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zibi2 wrote:

Removing those function breaks ABI. The z/OS intends to keep them around. Wonder why this was not discussed among different vendors.

https://github.com/llvm/llvm-project/pull/145344