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Make further progress on non-x86 support

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Justine Tunney 2023-05-08 21:38:30 -07:00
parent aef9a69a60
commit 036b9a0002
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GPG key ID: BE714B4575D6E328
155 changed files with 2307 additions and 653 deletions
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20
libc/tinymath/acoshl.c
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@ -32,17 +32,16 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/**
* Returns inverse hyperbolic cosine of 𝑥.
* @define acosh(x) = log(x + sqrt(x*x-1))
*/
long double acoshl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double acoshl(long double x)
{
return acosh(x);
}
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
/* acosh(x) = log(x + sqrt(x*x-1)) */
long double acoshl(long double x)
{
union ldshape u = {x};
int e = u.i.se & 0x7fff;
@ -53,11 +52,10 @@ long double acoshl(long double x)
/* |x| < 0x1p32 */
return logl(2*x - 1/(x+sqrtl(x*x-1)));
return logl(x) + 0.693147180559945309417232121458176568L;
}
#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
// TODO: broken implementation to make things compile
long double acoshl(long double x)
{
return acosh(x);
}
#else
#error "architecture unsupported"
#endif
}