[clang] [llvm] [Clang][Lexer] Reland "Detect SSE4.2 availability at runtime in fastParseASCIIIdentifier" (PR #175452)

Thibault Monnier via cfe-commits cfe-commits at lists.llvm.org
Thu Jan 22 02:11:43 PST 2026


Thibault-Monnier wrote:

I reverted this patch in #177322.

https://github.com/llvm/llvm-project/pull/175452


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