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Fix compiler runtime for _Float16 type

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Justine Tunney 2024-02-27 06:31:16 -08:00
parent 0ef36489c8
commit 64a9e6fe56
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GPG key ID: BE714B4575D6E328
14 changed files with 797 additions and 53 deletions
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42
libc/intrin/float16.c Normal file
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@ -0,0 +1,42 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
/**
* @fileoverview fp16 compiler runtime
*/
#define asint(x) ((union pun){x}).i
#define isnan(x) (((x) & 0x7fff) > 0x7c00)
union pun {
_Float16 f;
unsigned short i;
};
int __eqhf2(_Float16 fx, _Float16 fy) {
int x = asint(fx);
int y = asint(fy);
return (x == y) & !isnan(x) & !isnan(y);
}
int __nehf2(_Float16 fx, _Float16 fy) {
int x = asint(fx);
int y = asint(fy);
return (x != y) & !isnan(x) & !isnan(y);
}

8
libc/math.h
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@ -159,10 +159,10 @@ typedef double double_t;
#define fpclassify(x) \
__builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x)
#define signbit(x) \
(sizeof(x) == sizeof(double) ? __builtin_signbit(x) \
: sizeof(x) == sizeof(float) ? __builtin_signbitf(x) \
: __builtin_signbitl(x))
#define signbit(x) \
(sizeof(x) == sizeof(long double) ? __builtin_signbitl(x) \
: sizeof(x) == sizeof(float) ? __builtin_signbitf(x) \
: __builtin_signbit(x))
extern int signgam;