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- More timspec_*() and timeval_*() APIs have been introduced.
- The copyfd() function is now simplified thanks to POSIX rules.
- More Cosmo-specific APIs have been moved behind the COSMO define.
- The setitimer() polyfill for Windows NT is now much higher quality.
- Fixed build error for MODE=aarch64 due to -mstringop-strategy=loop.
- This change introduces `make MODE=nox87 toolchain` which makes it
  possible to build programs using your cosmocc toolchain that don't
  have legacy fpu instructions. This is useful, for example, if you
  want to have a ~22kb tinier blink virtual machine.
This commit is contained in:
Justine Tunney 2023-06-15 13:50:42 -07:00
parent 8dc11afcf6
commit c3440d040c
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GPG key ID: BE714B4575D6E328
132 changed files with 539 additions and 587 deletions
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24
third_party/compiler_rt/ilogbl.c vendored
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@ -29,22 +29,21 @@
#include "libc/math.h"
#include "libc/tinymath/internal.h"
#include "libc/tinymath/ldshape.internal.h"
#if !(LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024)
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
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
/**
* Returns log₂𝑥 exponent part of double.
*/
int ilogbl(long double x)
{
return ilogb(x);
}
#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
int ilogbl(long double x)
{
//#pragma STDC FENV_ACCESS ON
#if LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
// #pragma STDC FENV_ACCESS ON
union ldshape u = {x};
uint64_t m = u.i.m;
int e = u.i.se & 0x7fff;
@ -63,11 +62,8 @@ int ilogbl(long double x)
return m<<1 ? FP_ILOGBNAN : INT_MAX;
}
return e - 0x3fff;
}
#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
int ilogbl(long double x)
{
//#pragma STDC FENV_ACCESS ON
// #pragma STDC FENV_ACCESS ON
union ldshape u = {x};
int e = u.i.se & 0x7fff;
@ -86,5 +82,7 @@ int ilogbl(long double x)
return u.f ? FP_ILOGBNAN : INT_MAX;
}
return e - 0x3fff;
}
#endif
}
#endif /* long double is long */