bde 2008-02-25 22:19:17 UTC FreeBSD src repository
Modified files: lib/msun/src e_rem_pio2f.c s_cosf.c s_sinf.c s_tanf.c Log: Inline __ieee754__rem_pio2f(). On amd64 (A64) and i386 (A64), this gives an average speedup of about 12 cycles or 17% for 9pi/4 < |x| <= 2**19pi/2 and a smaller speedup for larger x, and a small speeddown for |x| <= 9pi/4 (only 1-2 cycles average, but that is 4%). Inlining this is less likely to bust caches than inlining the float version since it is much smaller (about 220 bytes text and rodata) and has many fewer branches. However, the float version was already large due to its manual inlining of the branches and also the polynomial evaluations. Revision Changes Path 1.28 +3 -0 src/lib/msun/src/e_rem_pio2f.c 1.18 +4 -0 src/lib/msun/src/s_cosf.c 1.17 +4 -0 src/lib/msun/src/s_sinf.c 1.17 +4 -0 src/lib/msun/src/s_tanf.c _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"