[PATCH] libm: switch sf_log1p from double error routines to float
Keith Packard <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <[email protected]> |
sf_log1p was using __math_divzero and __math_invalid, which drag in a pile of double-precision code. Switch to using the single-precision variants. This also required making those available in __OBSOLETE_MATH mode. Signed-off-by: Keith Packard <[email protected]> --- newlib/libm/common/math_errf.c | 2 -- newlib/libm/common/sf_log1p.c | 4 ++-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/newlib/libm/common/math_errf.c b/newlib/libm/common/math_errf.c index 762fc2799..53c68b1cf 100644 --- a/newlib/libm/common/math_errf.c +++ b/newlib/libm/common/math_errf.c @@ -75,7 +75,6 @@ __math_oflowf (uint32_t sign) return xflowf (sign, 0x1p97f); } -#if !__OBSOLETE_MATH HIDDEN float __math_divzerof (uint32_t sign) { @@ -89,4 +88,3 @@ __math_invalidf (float x) float y = (x - x) / (x - x); return isnan (x) ? y : with_errnof (y, EDOM); } -#endif /* !__OBSOLETE_MATH */ diff --git a/newlib/libm/common/sf_log1p.c b/newlib/libm/common/sf_log1p.c index d86768082..d326e00ba 100644 --- a/newlib/libm/common/sf_log1p.c +++ b/newlib/libm/common/sf_log1p.c @@ -56,9 +56,9 @@ static float zero = 0.0; if (hx < 0x3ed413d7) { /* x < 0.41422 */ if(ax>=0x3f800000) { /* x <= -1.0 */ if(x==(float)-1.0) - return __math_divzero (1); /* log1p(-1)=-inf */ + return __math_divzerof (1); /* log1p(-1)=-inf */ else - return __math_invalid (x); /* log1p(x<-1)=NaN */ + return __math_invalidf (x); /* log1p(x<-1)=NaN */ } if(ax<0x31000000) { /* |x| < 2**-29 */ if(two25+x>zero /* raise inexact */ -- 2.24.0