From 1dd609a3d1987733a003885713fff603b5b3755e Mon Sep 17 00:00:00 2001 From: bde Date: Sat, 15 Feb 1997 05:21:16 +0000 Subject: Disabled the i387 version if log1p(). It just evaluates log(1 + x). This defeats the point of log1p(). ucbtest reports errors of +-5e+15 ULPs. A correct version would use the i387 fyl2xp1 instruction for small x and maybe scale to small x. The C version does the scaling reasonably efficiently, and fyl2px1 is slow (at least on P5s), so not much is lost by always using the C version (only 25% for small x even with the broken i387 version; 50% for large x). --- lib/msun/Makefile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'lib/msun') diff --git a/lib/msun/Makefile b/lib/msun/Makefile index 9dca94a..ceda3ff 100644 --- a/lib/msun/Makefile +++ b/lib/msun/Makefile @@ -46,9 +46,11 @@ .PATH: ${.CURDIR}/i387 ARCH_SRCS = e_acos.S e_asin.S e_atan2.S e_exp.S e_fmod.S e_log.S e_log10.S \ e_remainder.S e_scalb.S e_sqrt.S s_atan.S s_ceil.S s_copysign.S \ - s_cos.S s_finite.S s_floor.S s_ilogb.S s_log1p.S s_logb.S \ + s_cos.S s_finite.S s_floor.S s_ilogb.S s_logb.S \ s_rint.S s_scalbn.S s_significand.S s_sin.S s_tan.S -.endif + +# Broken +# ARCH_SRCS+= s_log1p.S .PATH: ${.CURDIR}/man .PATH: ${.CURDIR}/src -- cgit v1.1