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Port a lot more code to AARCH64

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- Introduce epoll_pwait()
- Rewrite -ftrapv and ffs() libraries in C code
- Use more FreeBSD code in math function library
- Get significantly more tests passing on qemu-aarch64
- Fix many Musl long double functions that were broken on AARCH64
This commit is contained in:
Justine Tunney 2023-05-14 09:32:15 -07:00
parent 91791e9f38
commit 550b52abf6
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GPG key ID: BE714B4575D6E328
158 changed files with 6018 additions and 3499 deletions
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26
libc/tinymath/log1pl.c
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@ -30,7 +30,7 @@
#include "libc/tinymath/complex.internal.h"
asm(".ident\t\"\\n\\n\
OpenBSD libm (MIT License)\\n\
OpenBSD libm (ISC License)\\n\
Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net>\"");
asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
@ -88,12 +88,6 @@ asm(".include \"libc/disclaimer.inc\"");
* IEEE -1.0, 9.0 100000 8.2e-20 2.5e-20
*/
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double log1pl(long double x)
{
return log1p(x);
}
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
/* Coefficients for log(1+x) = x - x^2 / 2 + x^3 P(x)/Q(x)
* 1/sqrt(2) <= x < sqrt(2)
* Theoretical peak relative error = 2.32e-20
@ -144,6 +138,12 @@ static const long double C2 = 1.4286068203094172321215E-6L;
*/
long double log1pl(long double xm1)
{
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
return log1p(xm1);
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
long double x, y, z;
int e;
@ -208,13 +208,13 @@ long double log1pl(long double xm1)
z = z + x;
z = z + e * C1;
return z;
}
#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
// TODO: broken implementation to make things compile
long double log1pl(long double x)
{
return log1p(x);
}
long double __log1plq(long double);
return __log1plq(xm1);
#else
#error "architecture unsupported"
#endif
}