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2025-04-08[libc][math] Fix signaling NaN handling for math functions. (#133347)wldfngrs
Add tests for signaling NaNs, and fix function behavior for handling signaling NaN input. Fixes https://github.com/llvm/llvm-project/issues/124812
2025-03-21[libc][math] Implement fast pass for double precision atan function. (#132333)lntue
Implement fast pass for double precision `atan` using range reduction modulo 1/64 and degree-9 Taylor polynomial. Relative error is bounded by 2^-66.