[clang] [llvm] Revert "[Clang][Lexer] Reland "Detect SSE4.2 availability at runtime in fastParseASCIIIdentifier"" (PR #177322)

Thibault Monnier via cfe-commits cfe-commits at lists.llvm.org
Thu Jan 22 00:59:35 PST 2026


https://github.com/Thibault-Monnier auto_merge_enabled https://github.com/llvm/llvm-project/pull/177322


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