asm for log1p

src/math/i386/log1p.s

+.global log1p
+.type log1p,@function
+log1p:
+	mov 8(%esp),%eax
+	fldln2
+	and $0x7fffffff,%eax
+	fldl 4(%esp)
+	cmp $0x3fd28f00,%eax
+	ja 1f
+	fyl2xp1
+	ret
+1:	fld1
+	faddp
+	fyl2x
+	ret

src/math/i386/log1pf.s

+.global log1pf
+.type log1pf,@function
+log1pf:
+	mov 4(%esp),%eax
+	fldln2
+	and $0x7fffffff,%eax
+	flds 4(%esp)
+	cmp $0x3e940000,%eax
+	ja 1f
+	fyl2xp1
+	ret
+1:	fld1
+	faddp
+	fyl2x
+	ret

src/math/i386/log1pl.s

+.global log1pl
+.type log1pl,@function
+log1pl:
+	mov 10(%esp),%eax
+	fldln2
+	and $0x7fffffff,%eax
+	fldt 4(%esp)
+	cmp $0x3ffd9400,%eax
+	ja 1f
+	fyl2xp1
+	ret
+1:	fld1
+	faddp
+	fyl2x
+	ret