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
85 lines
4 KiB
C
85 lines
4 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 2021 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.internal.h"
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#include "libc/stdio/rand.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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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(fmodl, test) {
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EXPECT_STREQ("0", gc(xdtoal(fmodl(0, rando))));
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EXPECT_STREQ("NAN", gc(xdtoal(fmodl(1, NAN))));
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EXPECT_STREQ("NAN", gc(xdtoal(fmodl(NAN, 1))));
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EXPECT_TRUE(isnan(fmodl(INFINITY, 1)));
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EXPECT_TRUE(isnan(fmodl(1, 0)));
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EXPECT_STREQ("8", gc(xdtoal(fmodl(8, 32))));
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EXPECT_STREQ("8e+100", gc(xdtoal(fmodl(8e100, 32e100))));
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EXPECT_STREQ("5.319372648326541e+255",
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gc(xdtoal(ldexpl(6381956970095103, 797))));
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EXPECT_STREQ(".09287409360354737",
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gc(xdtoal(fmodl(ldexpl(6381956970095103, 797), M_2_PI))));
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}
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TEST(fmod, test) {
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EXPECT_STREQ("0", gc(xdtoa(fmod(0, rando))));
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EXPECT_STREQ("NAN", gc(xdtoa(fmod(1, NAN))));
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EXPECT_STREQ("NAN", gc(xdtoa(fmod(NAN, 1))));
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EXPECT_TRUE(isnan(fmod(INFINITY, 1)));
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EXPECT_TRUE(isnan(fmod(1, 0)));
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EXPECT_STREQ("8", gc(xdtoa(fmod(8, 32))));
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EXPECT_STREQ("8e+100", gc(xdtoa(fmod(8e100, 32e100))));
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EXPECT_STREQ("5.31937264832654e+255",
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gc(xdtoa(ldexp(6381956970095103, 797))));
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EXPECT_STREQ(".0928740936035474",
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gc(xdtoa(fmod(ldexp(6381956970095103, 797), M_2_PI))));
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}
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TEST(fmodf, test) {
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EXPECT_STREQ("0", gc(xdtoaf(fmodf(0, rando))));
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EXPECT_STREQ("NAN", gc(xdtoaf(fmodf(1, NAN))));
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EXPECT_STREQ("NAN", gc(xdtoaf(fmodf(NAN, 1))));
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EXPECT_TRUE(isnan(fmodf(INFINITY, 1)));
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EXPECT_TRUE(isnan(fmodf(1, 0)));
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EXPECT_STREQ("8", gc(xdtoaf(fmodf(8, 32))));
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EXPECT_STREQ("8e+20", gc(xdtoaf(fmodf(8e20, 32e20))));
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}
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BENCH(fmodf, bench) {
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EZBENCH2("fmodf eze", donothing, fmodf(8, 32));
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EZBENCH2("fmodf big", donothing, fmodf(5.319372648326541e+255, M_2_PI));
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}
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BENCH(fmod, bench) {
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// fmod-tiny.S goes slow in the average case, fast for big case
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EZBENCH2("fmod eze", donothing, fmod(8, 32));
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// fmod.c goes fast for the average case very slow for big case
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EZBENCH2("fmod big", donothing, fmod(5.319372648326541e+255, M_2_PI));
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}
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BENCH(fmodl, bench) {
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EZBENCH2("fmodl eze", donothing, fmodl(8, 32));
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EZBENCH2("fmodl big", donothing, fmodl(5.319372648326541e+255, M_2_PI));
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}
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