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| /freebsd-11.0-release/lib/msun/src/ | ||
| H A D | s_tanf.c | diff 176569 Mon Feb 25 22:19:17 MST 2008 bde 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. |
| H A D | s_cosf.c | diff 176569 Mon Feb 25 22:19:17 MST 2008 bde 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. |
| H A D | s_sinf.c | diff 176569 Mon Feb 25 22:19:17 MST 2008 bde 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. |
| H A D | e_rem_pio2f.c | diff 176569 Mon Feb 25 22:19:17 MST 2008 bde 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. |
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