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This is the first very simple substitution of ternary conditions for correction adjustments with __copysign for positive constants. * sysdeps/ieee754/dbl-64/s_sin.c (do_cos_slow): use copysign instead of ternary condition. (do_sin_slow): Likewise. (do_sincos_1): Likewise. (do_sincos_2): Likewise. (__cos): Likewise. (sloww): Likewise. (sloww1): Likewise. (sloww2): Likewise. (bsloww): Likewise. (bsloww1): Likewise. (bsloww2): Likewise.