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Get rid of some legacy code

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Justine Tunney 2024-08-24 17:53:30 -07:00
parent 37ca1badaf
commit 38cc4b3c68
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GPG key ID: BE714B4575D6E328
27 changed files with 123 additions and 600 deletions
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6
dsp/scale/BUILD.mk
View file

@ -45,6 +45,12 @@ $(DSP_SCALE_A).pkg: \
$(DSP_SCALE_A_OBJS) \ $(DSP_SCALE_A_OBJS) \
$(foreach x,$(DSP_SCALE_A_DIRECTDEPS),$($(x)_A).pkg) $(foreach x,$(DSP_SCALE_A_DIRECTDEPS),$($(x)_A).pkg)
ifeq ($(ARCH),x86_64)
o/$(MODE)/dsp/scale/cdecimate2xuint8x8.o: private \
CFLAGS += \
-mssse3
endif
o/$(MODE)/dsp/scale/cdecimate2xuint8x8.o \ o/$(MODE)/dsp/scale/cdecimate2xuint8x8.o \
o/$(MODE)/dsp/scale/gyarados.o \ o/$(MODE)/dsp/scale/gyarados.o \
o/$(MODE)/dsp/scale/magikarp.o \ o/$(MODE)/dsp/scale/magikarp.o \

34
libc/intrin/pandn.c
View file

@ -1,34 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pandn.h"
/**
* Nands 128-bit integers.
*
* @param 𝑎 [w/o] receives result
* @param 𝑏 [r/o] supplies first input vector
* @param 𝑐 [r/o] supplies second input vector
* @mayalias
*/
void(pandn)(uint64_t a[2], const uint64_t b[2], const uint64_t c[2]) {
unsigned i;
for (i = 0; i < 2; ++i) {
a[i] = ~b[i] & c[i];
}
}

12
libc/intrin/pandn.h
View file

@ -1,12 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PANDN_H_
#define COSMOPOLITAN_LIBC_INTRIN_PANDN_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
void pandn(uint64_t[2], const uint64_t[2], const uint64_t[2]);
#define pandn(A, B, C) \
INTRIN_SSEVEX_X_X_X_(pandn, SSE2, "pandn", INTRIN_NONCOMMUTATIVE, A, B, C)
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PANDN_H_ */

38
libc/intrin/pcmpgtb.c
View file

@ -1,38 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pcmpgtb.h"
#include "libc/str/str.h"
/**
* Compares signed 8-bit integers w/ greater than predicate.
*
* Note that operands can be xor'd with 0x80 for unsigned compares.
*
* @param 𝑎 [w/o] receives result
* @param 𝑏 [r/o] supplies first input vector
* @param 𝑐 [r/o] supplies second input vector
* @mayalias
*/
void(pcmpgtb)(int8_t a[16], const int8_t b[16], const int8_t c[16]) {
unsigned i;
int8_t r[16];
for (i = 0; i < 16; ++i)
r[i] = -(b[i] > c[i]);
__builtin_memcpy(a, r, 16);
}

12
libc/intrin/pcmpgtb.h
View file

@ -1,12 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PCMPGTB_H_
#define COSMOPOLITAN_LIBC_INTRIN_PCMPGTB_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
void pcmpgtb(int8_t[16], const int8_t[16], const int8_t[16]);
#define pcmpgtb(A, B, C) \
INTRIN_SSEVEX_X_X_X_(pcmpgtb, SSE2, "pcmpgtb", INTRIN_NONCOMMUTATIVE, A, B, C)
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PCMPGTB_H_ */

36
libc/intrin/pcmpgtw.c
View file

@ -1,36 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pcmpgtw.h"
#include "libc/str/str.h"
/**
* Compares signed 16-bit integers w/ greater than predicate.
*
* @param 𝑎 [w/o] receives result
* @param 𝑏 [r/o] supplies first input vector
* @param 𝑐 [r/o] supplies second input vector
* @mayalias
*/
void(pcmpgtw)(int16_t a[8], const int16_t b[8], const int16_t c[8]) {
unsigned i;
int16_t r[8];
for (i = 0; i < 8; ++i)
r[i] = -(b[i] > c[i]);
__builtin_memcpy(a, r, 16);
}

12
libc/intrin/pcmpgtw.h
View file

@ -1,12 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PCMPGTW_H_
#define COSMOPOLITAN_LIBC_INTRIN_PCMPGTW_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
void pcmpgtw(int16_t[8], const int16_t[8], const int16_t[8]);
#define pcmpgtw(A, B, C) \
INTRIN_SSEVEX_X_X_X_(pcmpgtw, SSE2, "pcmpgtw", INTRIN_NONCOMMUTATIVE, A, B, C)
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PCMPGTW_H_ */

34
libc/intrin/pmovmskb.c
View file

@ -1,34 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pmovmskb.h"
/**
* Turns result of byte comparison into bitmask.
*
* @param 𝑝 is byte vector to crunch
* @see pcmpeqb(), bsf(), etc.
*/
uint32_t(pmovmskb)(const uint8_t p[16]) {
uint32_t i, m;
for (m = i = 0; i < 16; ++i) {
if (p[i] & 0x80)
m |= 1 << i;
}
return m;
}

27
libc/intrin/pmovmskb.h
View file

@ -1,27 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PMOVMSKB_H_
#define COSMOPOLITAN_LIBC_INTRIN_PMOVMSKB_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
uint32_t pmovmskb(const uint8_t[16]);
#if defined(__x86_64__) && defined(__GNUC__)
#define pmovmskb(A) \
({ \
uint32_t Mask; \
if (!IsModeDbg() && X86_HAVE(SSE2)) { \
const __intrin_xmm_t *Xmm = (const __intrin_xmm_t *)(A); \
if (!X86_NEED(AVX)) { \
asm("pmovmskb\t%1,%0" : "=r"(Mask) : "x"(*Xmm)); \
} else { \
asm("vpmovmskb\t%1,%0" : "=r"(Mask) : "x"(*Xmm)); \
} \
} else { \
Mask = pmovmskb(A); \
} \
Mask; \
})
#endif
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PMOVMSKB_H_ */

3
libc/intrin/psraw.h
View file

@ -4,11 +4,8 @@
COSMOPOLITAN_C_START_ COSMOPOLITAN_C_START_
void psraw(int16_t[8], const int16_t[8], unsigned char) libcesque; void psraw(int16_t[8], const int16_t[8], unsigned char) libcesque;
void psrawv(int16_t[8], const int16_t[8], const uint64_t[2]) libcesque;
#define psraw(A, B, I) INTRIN_SSEVEX_X_I_(psraw, SSE2, "psraw", A, B, I) #define psraw(A, B, I) INTRIN_SSEVEX_X_I_(psraw, SSE2, "psraw", A, B, I)
#define psrawv(A, B, C) \
INTRIN_SSEVEX_X_X_X_(psrawv, SSE2, "psraw", INTRIN_NONCOMMUTATIVE, A, B, C)
COSMOPOLITAN_C_END_ COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PSRAW_H_ */ #endif /* COSMOPOLITAN_LIBC_INTRIN_PSRAW_H_ */

34
libc/intrin/psrawv.c
View file

@ -1,34 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/psraw.h"
/**
* Divides shorts by two power.
*
* @note arithmetic shift right will sign extend negatives
* @mayalias
*/
void(psrawv)(int16_t a[8], const int16_t b[8], const uint64_t c[2]) {
unsigned i;
unsigned char k;
k = c[0] > 15 ? 15 : c[0];
for (i = 0; i < 8; ++i) {
a[i] = b[i] >> k;
}
}

46
libc/intrin/punpckhbw.c
View file

@ -1,46 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/punpckhbw.h"
/**
* Interleaves high bytes.
*
* @param 𝑎 [w/o] receives reduced 𝑏 and 𝑐 interleaved
* @param 𝑏 [r/o] supplies eight words
* @param 𝑐 [r/o] supplies eight words
* @mayalias
*/
void(punpckhbw)(uint8_t a[16], const uint8_t b[16], const uint8_t c[16]) {
a[0x0] = b[0x8];
a[0x1] = c[0x8];
a[0x2] = b[0x9];
a[0x3] = c[0x9];
a[0x4] = b[0xa];
a[0x5] = c[0xa];
a[0x6] = b[0xb];
a[0x7] = c[0xb];
a[0x8] = b[0xc];
a[0x9] = c[0xc];
a[0xa] = b[0xd];
a[0xb] = c[0xd];
a[0xc] = b[0xe];
a[0xd] = c[0xe];
a[0xe] = b[0xf];
a[0xf] = c[0xf];
}

13
libc/intrin/punpckhbw.h
View file

@ -1,13 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PUNPCKHBW_H_
#define COSMOPOLITAN_LIBC_INTRIN_PUNPCKHBW_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
void punpckhbw(uint8_t[16], const uint8_t[16], const uint8_t[16]);
#define punpckhbw(A, B, C) \
INTRIN_SSEVEX_X_X_X_(punpckhbw, SSE2, "punpckhbw", INTRIN_NONCOMMUTATIVE, A, \
B, C)
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PUNPCKHBW_H_ */

49
libc/intrin/punpckhwd.c
View file

@ -1,49 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/punpckhwd.h"
#include "libc/str/str.h"
/**
* Interleaves high words.
*
* 0 1 2 3 4 5 6 7
* B aa bb cc dd EE FF GG HH
* C ii jj kk ll MM NN OO PP
* └┤ └┤ └┤ └┤
* ┌────────┘ │ │ │
* │ ┌─────┘ │ │
* │ │ ┌──┘ │
* ┌───┤ ┌───┤ ┌───┤ ┌───┤
* → A EE MM FF NN GG OO HH PP
*
* @param 𝑎 [w/o] receives reduced 𝑏 and 𝑐 interleaved
* @param 𝑏 [r/o] supplies eight words
* @param 𝑐 [r/o] supplies eight words
* @mayalias
*/
void(punpckhwd)(uint16_t a[8], const uint16_t b[8], const uint16_t c[8]) {
a[0] = b[4];
a[1] = c[4];
a[2] = b[5];
a[3] = c[5];
a[4] = b[6];
a[5] = c[6];
a[6] = b[7];
a[7] = c[7];
}

13
libc/intrin/punpckhwd.h
View file

@ -1,13 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PUNPCKHWD_H_
#define COSMOPOLITAN_LIBC_INTRIN_PUNPCKHWD_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
void punpckhwd(uint16_t[8], const uint16_t[8], const uint16_t[8]);
#define punpckhwd(A, B, C) \
INTRIN_SSEVEX_X_X_X_(punpckhwd, SSE2, "punpckhwd", INTRIN_NONCOMMUTATIVE, A, \
B, C)
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PUNPCKHWD_H_ */

56
libc/intrin/punpcklbw.c
View file

@ -1,56 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/punpcklbw.h"
/**
* Interleaves low bytes.
*
* 0 1 2 3 4 5 6 7 8 9 A B C D E F
* B A B C D E F G H i j k l m n o p
* C Q R S T U V W X y z α σ π μ τ ε
* │ │ │ │ │ │ │ │
* │ │ │ └─────┐
* │ │ └───┐ │ etc...
* │ └─┐ │ │
* ├─┐ ├─┐ ├─┐ ├─┐
* → A A Q B R C S D T E U F V G W H X
*
* @param 𝑎 [w/o] receives reduced 𝑏 and 𝑐 interleaved
* @param 𝑏 [r/o] supplies eight words
* @param 𝑐 [r/o] supplies eight words
* @mayalias
*/
void(punpcklbw)(uint8_t a[16], const uint8_t b[16], const uint8_t c[16]) {
a[0xf] = c[7];
a[0xe] = b[7];
a[0xd] = c[6];
a[0xc] = b[6];
a[0xb] = c[5];
a[0xa] = b[5];
a[0x9] = c[4];
a[0x8] = b[4];
a[0x7] = c[3];
a[0x6] = b[3];
a[0x5] = c[2];
a[0x4] = b[2];
a[0x3] = c[1];
a[0x2] = b[1];
a[0x1] = c[0];
a[0x0] = b[0];
}

13
libc/intrin/punpcklbw.h
View file

@ -1,13 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PUNPCKLBW_H_
#define COSMOPOLITAN_LIBC_INTRIN_PUNPCKLBW_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
void punpcklbw(uint8_t[16], const uint8_t[16], const uint8_t[16]);
#define punpcklbw(A, B, C) \
INTRIN_SSEVEX_X_X_X_(punpcklbw, SSE2, "punpcklbw", INTRIN_NONCOMMUTATIVE, A, \
B, C)
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PUNPCKLBW_H_ */

48
libc/intrin/punpcklwd.c
View file

@ -1,48 +0,0 @@
/*-*- 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 2020 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/punpcklwd.h"
/**
* Interleaves low words.
*
* 0 1 2 3 4 5 6 7
* B AA BB CC DD ee ff gg hh
* C II JJ KK LL mm nn oo pp
* ├┘ ├┘ ├┘ ├┘
* │ │ │ └────────┐
* │ │ └─────┐ │
* │ └──┐ │ │
* ├───┐ ├───┐ ├───┐ ├───┐
* → A AA II BB JJ CC KK DD LL
*
* @param 𝑎 [w/o] receives reduced 𝑏 and 𝑐 interleaved
* @param 𝑏 [r/o] supplies eight words
* @param 𝑐 [r/o] supplies eight words
* @mayalias
*/
void(punpcklwd)(uint16_t a[8], const uint16_t b[8], const uint16_t c[8]) {
a[7] = c[3];
a[6] = b[3];
a[5] = c[2];
a[4] = b[2];
a[3] = c[1];
a[2] = b[1];
a[1] = c[0];
a[0] = b[0];
}

13
libc/intrin/punpcklwd.h
View file

@ -1,13 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_PUNPCKLWD_H_
#define COSMOPOLITAN_LIBC_INTRIN_PUNPCKLWD_H_
#include "libc/intrin/macros.h"
COSMOPOLITAN_C_START_
void punpcklwd(uint16_t[8], const uint16_t[8], const uint16_t[8]);
#define punpcklwd(A, B, C) \
INTRIN_SSEVEX_X_X_X_(punpcklwd, SSE2, "punpcklwd", INTRIN_NONCOMMUTATIVE, A, \
B, C)
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_PUNPCKLWD_H_ */

2
libc/str/strnwidth.c
View file

@ -17,8 +17,6 @@
│ PERFORMANCE OF THIS SOFTWARE. │ │ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/bsf.h" #include "libc/intrin/bsf.h"
#include "libc/intrin/pcmpgtb.h"
#include "libc/intrin/pmovmskb.h"
#include "libc/macros.h" #include "libc/macros.h"
#include "libc/str/str.h" #include "libc/str/str.h"
#include "libc/str/thompike.h" #include "libc/str/thompike.h"

60
libc/str/tprecode16to8.c
View file

@ -18,35 +18,55 @@
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/dce.h" #include "libc/dce.h"
#include "libc/fmt/conv.h" #include "libc/fmt/conv.h"
#include "libc/intrin/packsswb.h"
#include "libc/intrin/pandn.h"
#include "libc/intrin/pcmpgtw.h"
#include "libc/intrin/pmovmskb.h"
#include "libc/str/str.h" #include "libc/str/str.h"
#include "libc/str/utf16.h" #include "libc/str/utf16.h"
#include "third_party/aarch64/arm_neon.internal.h"
#include "third_party/intel/emmintrin.internal.h"
static const int16_t kDel16[8] = {127, 127, 127, 127, 127, 127, 127, 127}; #if !IsModeDbg()
#if defined(__x86_64__)
/* 10x speedup for ascii */
static axdx_t tprecode16to8_sse2(char *dst, size_t dstsize, const char16_t *src, static axdx_t tprecode16to8_sse2(char *dst, size_t dstsize, const char16_t *src,
axdx_t r) { axdx_t r) {
int16_t v1[8], v2[8], v3[8], vz[8]; __m128i v1, v2, v3, vz;
memset(vz, 0, 16); vz = _mm_setzero_si128();
while (r.ax + 8 < dstsize) { while (r.ax + 8 < dstsize) {
memcpy(v1, src + r.dx, 16); v1 = _mm_loadu_si128((__m128i *)(src + r.dx));
pcmpgtw(v2, v1, vz); v2 = _mm_cmpgt_epi16(v1, vz);
pcmpgtw(v3, v1, kDel16); v3 = _mm_cmpgt_epi16(v1, _mm_set1_epi16(0x7F));
pandn((void *)v2, (void *)v3, (void *)v2); v2 = _mm_andnot_si128(v3, v2);
if (pmovmskb((void *)v2) != 0xFFFF) if (_mm_movemask_epi8(v2) != 0xFFFF)
break; break;
packsswb((void *)v1, v1, v1); v1 = _mm_packs_epi16(v1, v1);
memcpy(dst + r.ax, v1, 8); _mm_storel_epi64((__m128i *)(dst + r.ax), v1);
r.ax += 8; r.ax += 8;
r.dx += 8; r.dx += 8;
} }
return r; return r;
} }
#elif defined(__aarch64__)
static axdx_t tprecode16to8_neon(char *dst, size_t dstsize, const char16_t *src,
axdx_t r) {
uint16x8_t v1, v2, v3;
while (r.ax + 8 < dstsize) {
v1 = vld1q_u16((const uint16_t *)(src + r.dx));
v2 = vcgtq_u16(v1, vdupq_n_u16(0));
v3 = vcgtq_u16(v1, vdupq_n_u16(0x7F));
v2 = vbicq_u16(v2, v3);
if (vaddvq_u16(v2) != 8 * 0xFFFF)
break;
vst1_u8((uint8_t *)(dst + r.ax), vqmovn_u16(v1));
r.ax += 8;
r.dx += 8;
}
return r;
}
#endif
#endif
/** /**
* Transcodes UTF-16 to UTF-8. * Transcodes UTF-16 to UTF-8.
* *
@ -66,10 +86,14 @@ axdx_t tprecode16to8(char *dst, size_t dstsize, const char16_t *src) {
r.ax = 0; r.ax = 0;
r.dx = 0; r.dx = 0;
for (;;) { for (;;) {
#if defined(__x86_64__) && !IsModeDbg() && !IsTiny() #if !IsModeDbg()
if (!((uintptr_t)(src + r.dx) & 15)) { #if defined(__x86_64__)
if (!((uintptr_t)(src + r.dx) & 15))
r = tprecode16to8_sse2(dst, dstsize, src, r); r = tprecode16to8_sse2(dst, dstsize, src, r);
} #elif defined(__aarch64__)
if (!((uintptr_t)(src + r.dx) & 15))
r = tprecode16to8_neon(dst, dstsize, src, r);
#endif
#endif #endif
if (!(x = src[r.dx++])) if (!(x = src[r.dx++]))
break; break;

65
libc/str/tprecode8to16.c
View file

@ -16,34 +16,61 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │ │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │ │ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pcmpgtb.h" #include <arm_neon.h>
#include "libc/intrin/pmovmskb.h" #include <stdint.h>
#include "libc/intrin/punpckhbw.h" #include <string.h>
#include "libc/intrin/punpcklbw.h" #include "libc/dce.h"
#include "libc/str/str.h" #include "libc/str/str.h"
#include "libc/str/thompike.h" #include "libc/str/thompike.h"
#include "libc/str/utf16.h" #include "libc/str/utf16.h"
#include "third_party/aarch64/arm_neon.internal.h"
#include "third_party/intel/emmintrin.internal.h"
#if !IsModeDbg()
#if defined(__x86_64__)
// 34x speedup for ascii
static inline axdx_t tprecode8to16_sse2(char16_t *dst, size_t dstsize, static inline axdx_t tprecode8to16_sse2(char16_t *dst, size_t dstsize,
const char *src, axdx_t r) { const char *src, axdx_t r) {
uint8_t v1[16], v2[16], vz[16]; __m128i v1, v2, vz;
memset(vz, 0, 16); vz = _mm_setzero_si128();
while (r.ax + 16 < dstsize) { while (r.ax + 16 < dstsize) {
memcpy(v1, src + r.dx, 16); v1 = _mm_loadu_si128((__m128i *)(src + r.dx));
pcmpgtb((int8_t *)v2, (int8_t *)v1, (int8_t *)vz); v2 = _mm_cmpgt_epi8(v1, vz);
if (pmovmskb(v2) != 0xFFFF) if (_mm_movemask_epi8(v2) != 0xFFFF)
break; break;
punpcklbw(v2, v1, vz); __m128i lo = _mm_unpacklo_epi8(v1, vz);
punpckhbw(v1, v1, vz); __m128i hi = _mm_unpackhi_epi8(v1, vz);
memcpy(dst + r.ax + 0, v2, 16); _mm_storeu_si128((__m128i *)(dst + r.ax), lo);
memcpy(dst + r.ax + 8, v1, 16); _mm_storeu_si128((__m128i *)(dst + r.ax + 8), hi);
r.ax += 16; r.ax += 16;
r.dx += 16; r.dx += 16;
} }
return r; return r;
} }
#elif defined(__aarch64__)
static inline axdx_t tprecode8to16_neon(char16_t *dst, size_t dstsize,
const char *src, axdx_t r) {
uint8x16_t v1;
while (r.ax + 16 < dstsize) {
v1 = vld1q_u8((const uint8_t *)(src + r.dx));
uint8x16_t cmp = vcgtq_u8(v1, vdupq_n_u8(0));
if (vaddvq_u8(cmp) != 16 * 0xFF)
break;
uint16x8_t lo = vmovl_u8(vget_low_u8(v1));
uint16x8_t hi = vmovl_u8(vget_high_u8(v1));
vst1q_u16((uint16_t *)(dst + r.ax), lo);
vst1q_u16((uint16_t *)(dst + r.ax + 8), hi);
r.ax += 16;
r.dx += 16;
}
return r;
}
#endif
#endif
/** /**
* Transcodes UTF-8 to UTF-16. * Transcodes UTF-8 to UTF-16.
* *
@ -64,10 +91,14 @@ axdx_t tprecode8to16(char16_t *dst, size_t dstsize, const char *src) {
r.ax = 0; r.ax = 0;
r.dx = 0; r.dx = 0;
for (;;) { for (;;) {
#if defined(__x86_64__) && !IsModeDbg() #if !IsModeDbg()
if (!((uintptr_t)(src + r.dx) & 15)) { #if defined(__x86_64__)
if (!((uintptr_t)(src + r.dx) & 15))
r = tprecode8to16_sse2(dst, dstsize, src, r); r = tprecode8to16_sse2(dst, dstsize, src, r);
} #elif defined(__aarch64__)
if (!((uintptr_t)(src + r.dx) & 15))
r = tprecode8to16_neon(dst, dstsize, src, r);
#endif
#endif #endif
x = src[r.dx++] & 0377; x = src[r.dx++] & 0377;
if (x >= 0300) { if (x >= 0300) {

29
libc/x/utf16to8.c
View file

@ -17,21 +17,13 @@
│ PERFORMANCE OF THIS SOFTWARE. │ │ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/bsr.h" #include "libc/intrin/bsr.h"
#include "libc/intrin/packsswb.h"
#include "libc/intrin/pandn.h"
#include "libc/intrin/pcmpgtb.h"
#include "libc/intrin/pcmpgtw.h"
#include "libc/intrin/pmovmskb.h"
#include "libc/intrin/punpckhbw.h"
#include "libc/intrin/punpcklbw.h"
#include "libc/mem/mem.h" #include "libc/mem/mem.h"
#include "libc/serialize.h" #include "libc/serialize.h"
#include "libc/str/str.h" #include "libc/str/str.h"
#include "libc/str/thompike.h" #include "libc/str/thompike.h"
#include "libc/str/utf16.h" #include "libc/str/utf16.h"
#include "libc/x/x.h" #include "libc/x/x.h"
#include "third_party/intel/emmintrin.internal.h"
static const int16_t kDel16[8] = {127, 127, 127, 127, 127, 127, 127, 127};
/** /**
* Transcodes UTF-16 to UTF-8. * Transcodes UTF-16 to UTF-8.
@ -45,28 +37,27 @@ char *utf16to8(const char16_t *p, size_t n, size_t *z) {
char *r, *q; char *r, *q;
wint_t x, y; wint_t x, y;
const char16_t *e; const char16_t *e;
int16_t v1[8], v2[8], v3[8], vz[8];
if (z) if (z)
*z = 0; *z = 0;
if (n == -1) if (n == -1)
n = p ? strlen16(p) : 0; n = p ? strlen16(p) : 0;
if ((q = r = malloc(n * 4 + 8 + 1))) { if ((q = r = malloc(n * 4 + 8 + 1))) {
for (e = p + n; p < e;) { for (e = p + n; p < e;) {
if (p + 8 < e) { /* 17x ascii */ #if defined(__x86_64__)
bzero(vz, 16); if (p + 8 < e) {
do { do {
memcpy(v1, p, 16); __m128i v1 = _mm_loadu_si128((__m128i *)p);
pcmpgtw(v2, v1, vz); __m128i v2 = _mm_cmpgt_epi16(v1, _mm_setzero_si128());
pcmpgtw(v3, v1, kDel16); __m128i v3 = _mm_cmpgt_epi16(v1, _mm_set1_epi16(127));
pandn((void *)v2, (void *)v3, (void *)v2); v2 = _mm_andnot_si128(v3, v2);
if (pmovmskb((void *)v2) != 0xFFFF) if (_mm_movemask_epi8(v2) != 0xFFFF)
break; break;
packsswb((void *)v1, v1, v1); _mm_storel_epi64((__m128i *)q, _mm_packs_epi16(v1, v1));
memcpy(q, v1, 8);
p += 8; p += 8;
q += 8; q += 8;
} while (p + 8 < e); } while (p + 8 < e);
} }
#endif
x = *p++ & 0xffff; x = *p++ & 0xffff;
if (!IsUcs2(x)) { if (!IsUcs2(x)) {
if (p < e) { if (p < e) {

40
libc/x/utf8to32.c
View file

@ -16,18 +16,12 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │ │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │ │ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/likely.h"
#include "libc/intrin/pcmpgtb.h"
#include "libc/intrin/pmovmskb.h"
#include "libc/intrin/punpckhbw.h"
#include "libc/intrin/punpckhwd.h"
#include "libc/intrin/punpcklbw.h"
#include "libc/intrin/punpcklwd.h"
#include "libc/mem/mem.h" #include "libc/mem/mem.h"
#include "libc/str/str.h" #include "libc/str/str.h"
#include "libc/str/thompike.h" #include "libc/str/thompike.h"
#include "libc/str/utf16.h" #include "libc/str/utf16.h"
#include "libc/x/x.h" #include "libc/x/x.h"
#include "third_party/intel/emmintrin.internal.h"
/** /**
* Transcodes UTF-8 to UTF-32. * Transcodes UTF-8 to UTF-32.
@ -41,35 +35,35 @@ wchar_t *utf8to32(const char *p, size_t n, size_t *z) {
unsigned m, j; unsigned m, j;
wint_t x, a, b; wint_t x, a, b;
wchar_t *r, *q; wchar_t *r, *q;
uint8_t v1[16], v2[16], v3[16], v4[16], vz[16];
if (z) if (z)
*z = 0; *z = 0;
if (n == -1) if (n == -1)
n = p ? strlen(p) : 0; n = p ? strlen(p) : 0;
if ((q = r = malloc(n * sizeof(wchar_t) + sizeof(wchar_t)))) { if ((q = r = malloc(n * sizeof(wchar_t) + sizeof(wchar_t)))) {
for (i = 0; i < n;) { for (i = 0; i < n;) {
#ifdef __x86_64__
if (!((uintptr_t)(p + i) & 15) && i + 16 < n) { if (!((uintptr_t)(p + i) & 15) && i + 16 < n) {
/* 10x speedup for ascii */
bzero(vz, 16);
do { do {
memcpy(v1, p + i, 16); __m128i v1, v2, v3, v4;
pcmpgtb((int8_t *)v2, (int8_t *)v1, (int8_t *)vz); v1 = _mm_loadu_si128((__m128i *)(p + i));
if (pmovmskb(v2) != 0xFFFF) v2 = _mm_cmpgt_epi8(v1, _mm_setzero_si128());
if (_mm_movemask_epi8(v2) != 0xFFFF)
break; break;
punpcklbw(v3, v1, vz); v3 = _mm_unpacklo_epi8(v1, _mm_setzero_si128());
punpckhbw(v1, v1, vz); v1 = _mm_unpackhi_epi8(v1, _mm_setzero_si128());
punpcklwd((void *)v4, (void *)v3, (void *)vz); v4 = _mm_unpacklo_epi16(v3, _mm_setzero_si128());
punpckhwd((void *)v3, (void *)v3, (void *)vz); v3 = _mm_unpackhi_epi16(v3, _mm_setzero_si128());
punpcklwd((void *)v2, (void *)v1, (void *)vz); v2 = _mm_unpacklo_epi16(v1, _mm_setzero_si128());
punpckhwd((void *)v1, (void *)v1, (void *)vz); v1 = _mm_unpackhi_epi16(v1, _mm_setzero_si128());
memcpy(q + 0, v4, 16); _mm_storeu_si128((__m128i *)(q + 0), v4);
memcpy(q + 4, v3, 16); _mm_storeu_si128((__m128i *)(q + 4), v3);
memcpy(q + 8, v2, 16); _mm_storeu_si128((__m128i *)(q + 8), v2);
memcpy(q + 12, v1, 16); _mm_storeu_si128((__m128i *)(q + 12), v1);
i += 16; i += 16;
q += 16; q += 16;
} while (i + 16 < n); } while (i + 16 < n);
} }
#endif
x = p[i++] & 0xff; x = p[i++] & 0xff;
if (x >= 0300) { if (x >= 0300) {
a = ThomPikeByte(x); a = ThomPikeByte(x);

13
net/http/decodelatin1.c
View file

@ -16,8 +16,6 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │ │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │ │ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pcmpgtb.h"
#include "libc/intrin/pmovmskb.h"
#include "libc/mem/mem.h" #include "libc/mem/mem.h"
#include "libc/str/str.h" #include "libc/str/str.h"
#include "net/http/escape.h" #include "net/http/escape.h"
@ -34,23 +32,12 @@ char *DecodeLatin1(const char *p, size_t n, size_t *z) {
int c; int c;
size_t i; size_t i;
char *r, *q; char *r, *q;
int8_t v1[16], v2[16], vz[16];
if (z) if (z)
*z = 0; *z = 0;
if (n == -1) if (n == -1)
n = p ? strlen(p) : 0; n = p ? strlen(p) : 0;
if ((q = r = malloc(n * 2 + 1))) { if ((q = r = malloc(n * 2 + 1))) {
for (i = 0; i < n;) { for (i = 0; i < n;) {
bzero(vz, 16); /* 3x speedup for ASCII */
while (i + 16 < n) {
memcpy(v1, p + i, 16);
pcmpgtb(v2, v1, vz);
if (pmovmskb((void *)v2) != 0xFFFF)
break;
memcpy(q, v1, 16);
q += 16;
i += 16;
}
c = p[i++] & 0xff; c = p[i++] & 0xff;
if (c < 0200) { if (c < 0200) {
*q++ = c; *q++ = c;

2
net/http/encodelatin1.c
View file

@ -17,8 +17,6 @@
│ PERFORMANCE OF THIS SOFTWARE. │ │ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/errno.h" #include "libc/errno.h"
#include "libc/intrin/pcmpgtb.h"
#include "libc/intrin/pmovmskb.h"
#include "libc/mem/mem.h" #include "libc/mem/mem.h"
#include "libc/stdio/stdio.h" #include "libc/stdio/stdio.h"
#include "libc/str/str.h" #include "libc/str/str.h"

13
net/http/underlong.c
View file

@ -16,8 +16,6 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │ │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │ │ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/ ╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pcmpgtb.h"
#include "libc/intrin/pmovmskb.h"
#include "libc/mem/mem.h" #include "libc/mem/mem.h"
#include "libc/str/str.h" #include "libc/str/str.h"
#include "libc/str/thompike.h" #include "libc/str/thompike.h"
@ -40,23 +38,12 @@ char *Underlong(const char *p, size_t n, size_t *z) {
char *r, *q; char *r, *q;
size_t i, j, m; size_t i, j, m;
wint_t x, a, b; wint_t x, a, b;
int8_t v1[16], v2[16], vz[16];
if (z) if (z)
*z = 0; *z = 0;
if (n == -1) if (n == -1)
n = p ? strlen(p) : 0; n = p ? strlen(p) : 0;
if ((q = r = malloc(n * 2 + 1))) { if ((q = r = malloc(n * 2 + 1))) {
for (i = 0; i < n;) { for (i = 0; i < n;) {
bzero(vz, 16); /* 50x speedup for ASCII */
while (i + 16 < n) {
memcpy(v1, p + i, 16);
pcmpgtb(v2, v1, vz);
if (pmovmskb((void *)v2) != 0xFFFF)
break;
memcpy(q, v1, 16);
q += 16;
i += 16;
}
x = p[i++] & 0xff; x = p[i++] & 0xff;
if (x >= 0300) { if (x >= 0300) {
a = ThomPikeByte(x); a = ThomPikeByte(x);