mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
550b52abf6
- 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
125 lines
6.3 KiB
C
125 lines
6.3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/math.h"
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#include "libc/mem/gc.h"
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#include "libc/stdio/rand.h"
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#include "libc/stdio/stdio.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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#include "libc/x/xasprintf.h"
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double _ldexp(double, int) asm("ldexp");
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float _ldexpf(float, int) asm("ldexpf");
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long double _ldexpl(long double, int) asm("ldexpl");
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int rando;
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void SetUp(void) {
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rando = rand() & 0xffff;
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}
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TEST(ldexpl, test) {
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EXPECT_EQ(rando, _ldexpl(rando, 0));
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EXPECT_STREQ("NAN", _gc(xdtoal(_ldexpl(NAN, 0))));
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EXPECT_STREQ("-NAN", _gc(xdtoal(_ldexpl(-NAN, 0))));
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EXPECT_STREQ("INFINITY", _gc(xdtoal(_ldexpl(INFINITY, 0))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoal(_ldexpl(-INFINITY, 0))));
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EXPECT_STREQ("NAN", _gc(xdtoal(_ldexpl(NAN, 1))));
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EXPECT_STREQ("-NAN", _gc(xdtoal(_ldexpl(-NAN, 1))));
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EXPECT_STREQ("INFINITY", _gc(xdtoal(_ldexpl(INFINITY, 1))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoal(_ldexpl(-INFINITY, 1))));
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EXPECT_STREQ("16384", _gc(xdtoal(log2l(LDBL_MAX))));
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EXPECT_STREQ(".00390625", _gc(xdtoal(_ldexpl(1, -8))));
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EXPECT_STREQ("0", _gc(xdtoal(_ldexpl(0, -8))));
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EXPECT_STREQ("0", _gc(xdtoal(_ldexpl(0, 8))));
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EXPECT_STREQ("256", _gc(xdtoal(_ldexpl(1, 8))));
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EXPECT_STREQ("512", _gc(xdtoal(_ldexpl(2, 8))));
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EXPECT_STREQ("768", _gc(xdtoal(_ldexpl(3, 8))));
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EXPECT_STREQ("6.997616471358197e+3461", _gc(xdtoal(_ldexpl(1, 11500))));
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EXPECT_STREQ("INFINITY", _gc(xdtoal(_ldexpl(1, 999999))));
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// EXPECT_STREQ("0", _gc(xdtoal(_ldexpl(1, -999999))));
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}
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TEST(ldexp, test) {
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EXPECT_EQ(rando, _ldexp(rando, 0));
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EXPECT_STREQ("NAN", _gc(xdtoa(_ldexp(NAN, 0))));
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EXPECT_STREQ("-NAN", _gc(xdtoa(_ldexp(-NAN, 0))));
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EXPECT_STREQ("INFINITY", _gc(xdtoa(_ldexp(INFINITY, 0))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoa(_ldexp(-INFINITY, 0))));
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EXPECT_STREQ("NAN", _gc(xdtoa(_ldexp(NAN, 1))));
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EXPECT_STREQ("-NAN", _gc(xdtoa(_ldexp(-NAN, 1))));
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EXPECT_STREQ("INFINITY", _gc(xdtoa(_ldexp(INFINITY, 1))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoa(_ldexp(-INFINITY, 1))));
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EXPECT_STREQ("16384", _gc(xdtoa(log2l(LDBL_MAX))));
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EXPECT_STREQ(".00390625", _gc(xdtoa(_ldexp(1, -8))));
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EXPECT_STREQ("0", _gc(xdtoa(_ldexp(0, -8))));
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EXPECT_STREQ("0", _gc(xdtoa(_ldexp(0, 8))));
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EXPECT_STREQ("256", _gc(xdtoa(_ldexp(1, 8))));
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EXPECT_STREQ("512", _gc(xdtoa(_ldexp(2, 8))));
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EXPECT_STREQ("768", _gc(xdtoa(_ldexp(3, 8))));
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EXPECT_STREQ("INFINITY", _gc(xdtoa(_ldexp(1, 999999))));
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EXPECT_STREQ("0", _gc(xdtoa(_ldexp(1, -999999))));
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}
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TEST(ldexpf, test) {
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EXPECT_EQ(rando, _ldexpf(rando, 0));
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EXPECT_STREQ("NAN", _gc(xdtoaf(_ldexpf(NAN, 0))));
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EXPECT_STREQ("-NAN", _gc(xdtoaf(_ldexpf(-NAN, 0))));
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EXPECT_STREQ("INFINITY", _gc(xdtoaf(_ldexpf(INFINITY, 0))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoaf(_ldexpf(-INFINITY, 0))));
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EXPECT_STREQ("NAN", _gc(xdtoaf(_ldexpf(NAN, 1))));
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EXPECT_STREQ("-NAN", _gc(xdtoaf(_ldexpf(-NAN, 1))));
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EXPECT_STREQ("INFINITY", _gc(xdtoaf(_ldexpf(INFINITY, 1))));
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EXPECT_STREQ("-INFINITY", _gc(xdtoaf(_ldexpf(-INFINITY, 1))));
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EXPECT_STREQ("16384", _gc(xdtoaf(log2l(LDBL_MAX))));
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EXPECT_STREQ(".00390625", _gc(xdtoaf(_ldexpf(1, -8))));
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EXPECT_STREQ("0", _gc(xdtoaf(_ldexpf(0, -8))));
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EXPECT_STREQ("0", _gc(xdtoaf(_ldexpf(0, 8))));
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EXPECT_STREQ("256", _gc(xdtoaf(_ldexpf(1, 8))));
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EXPECT_STREQ("512", _gc(xdtoaf(_ldexpf(2, 8))));
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EXPECT_STREQ("768", _gc(xdtoaf(_ldexpf(3, 8))));
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EXPECT_STREQ("INFINITY", _gc(xdtoaf(_ldexpf(1, 999999))));
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EXPECT_STREQ("0", _gc(xdtoaf(_ldexpf(1, -999999))));
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}
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TEST(ldexp, stuff) {
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volatile int twopow = 5;
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volatile double pi = 3.14;
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", _ldexp(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", _ldexpf(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", scalb(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", scalbf(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", scalbn(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", scalbnf(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", scalbln(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2f", scalblnf(pi, twopow))));
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#ifndef __aarch64__
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// TODO: implement quad floating point in printf
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2Lf", _ldexpl(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2Lf", scalbnl(pi, twopow))));
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ASSERT_STREQ("100.48", _gc(xasprintf("%.2Lf", scalblnl(pi, twopow))));
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#endif
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}
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BENCH(ldexpl, bench) {
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EZBENCH2("ldexp", donothing, _ldexp(.7, 3)); // ~2ns
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EZBENCH2("ldexpf", donothing, _ldexpf(.7, 3)); // ~2ns
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EZBENCH2("ldexpl", donothing, _ldexpl(.7, 3)); // ~8ns
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}
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