// Copyright 2022 Google LLC
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "hwy/print.h"
#include <stdio.h>
#include "hwy/base.h"
#include "hwy/detect_compiler_arch.h"
namespace hwy {
namespace detail {
HWY_DLLEXPORT
void TypeName (
const TypeInfo& info, size_t N,
char * string100) {
const char prefix = info.is_float ?
'f' : (info.is_signed ?
'i' :
'u' );
// Omit the xN suffix for scalars.
if (N ==
1 ) {
// NOLINTNEXTLINE
snprintf(string100,
64 ,
"%c%d" , prefix,
static_cast <
int >(info.sizeof_t *
8 ));
}
else {
// NOLINTNEXTLINE
snprintf(string100,
64 ,
"%c%dx%d" , prefix,
static_cast <
int >(info.sizeof_t *
8 ),
static_cast <
int >(N));
}
}
HWY_DLLEXPORT
void ToString(
const TypeInfo& info,
const void * ptr,
char * string100) {
if (info.sizeof_t ==
1 ) {
if (info.is_signed) {
int8_t byte;
CopyBytes<
1 >(ptr, &byte);
// endian-safe: we ensured sizeof(T)=1.
snprintf(string100,
100 ,
"%d" , byte);
// NOLINT
}
else {
uint8_t byte;
CopyBytes<
1 >(ptr, &byte);
// endian-safe: we ensured sizeof(T)=1.
snprintf(string100,
100 ,
"0x%02X" , byte);
// NOLINT
}
}
else if (info.sizeof_t ==
2 ) {
if (info.is_bf16) {
const double value =
static_cast <
double >(F32FromBF16Mem(ptr));
const char * fmt = hwy::ScalarAbs(value) <
1 E-
3 ?
"%.3E" :
"%.3f" ;
snprintf(string100,
100 , fmt, value);
// NOLINT
}
else if (info.is_float) {
const double value =
static_cast <
double >(F32FromF16Mem(ptr));
const char * fmt = hwy::ScalarAbs(value) <
1 E-
4 ?
"%.4E" :
"%.4f" ;
snprintf(string100,
100 , fmt, value);
// NOLINT
}
else {
uint16_t bits;
CopyBytes<
2 >(ptr, &bits);
snprintf(string100,
100 ,
"0x%04X" , bits);
// NOLINT
}
}
else if (info.sizeof_t ==
4 ) {
if (info.is_float) {
float value;
CopyBytes<
4 >(ptr, &value);
const char * fmt = hwy::ScalarAbs(value) <
1 E-
6 ?
"%.9E" :
"%.9f" ;
snprintf(string100,
100 , fmt,
static_cast <
double >(value));
// NOLINT
}
else if (info.is_signed) {
int32_t value;
CopyBytes<
4 >(ptr, &value);
snprintf(string100,
100 ,
"%d" , value);
// NOLINT
}
else {
uint32_t value;
CopyBytes<
4 >(ptr, &value);
snprintf(string100,
100 ,
"%u" , value);
// NOLINT
}
}
else if (info.sizeof_t ==
8 ) {
if (info.is_float) {
double value;
CopyBytes<
8 >(ptr, &value);
const char * fmt = hwy::ScalarAbs(value) <
1 E-
9 ?
"%.18E" :
"%.18f" ;
snprintf(string100,
100 , fmt, value);
// NOLINT
}
else {
const uint8_t* ptr8 =
reinterpret_cast <
const uint8_t*>(ptr);
uint32_t lo, hi;
CopyBytes<
4 >(ptr8 + (HWY_IS_LITTLE_ENDIAN ?
0 :
4 ), &lo);
CopyBytes<
4 >(ptr8 + (HWY_IS_LITTLE_ENDIAN ?
4 :
0 ), &hi);
snprintf(string100,
100 ,
"0x%08x%08x" , hi, lo);
// NOLINT
}
}
else if (info.sizeof_t ==
16 ) {
HWY_ASSERT(!info.is_float && !info.is_signed && !info.is_bf16);
const uint8_t* ptr8 =
reinterpret_cast <
const uint8_t*>(ptr);
uint32_t words[
4 ];
CopyBytes<
4 >(ptr8 + (HWY_IS_LITTLE_ENDIAN ?
0 :
12 ), &words[
0 ]);
CopyBytes<
4 >(ptr8 + (HWY_IS_LITTLE_ENDIAN ?
4 :
8 ), &words[
1 ]);
CopyBytes<
4 >(ptr8 + (HWY_IS_LITTLE_ENDIAN ?
8 :
4 ), &words[
2 ]);
CopyBytes<
4 >(ptr8 + (HWY_IS_LITTLE_ENDIAN ?
12 :
0 ), &words[
3 ]);
// NOLINTNEXTLINE
snprintf(string100,
100 ,
"0x%08x%08x_%08x%08x" , words[
3 ], words[
2 ],
words[
1 ], words[
0 ]);
}
}
HWY_DLLEXPORT
void PrintArray(
const TypeInfo& info,
const char * caption,
const void * array_void, size_t N, size_t lane_u,
size_t max_lanes) {
const uint8_t* array_bytes =
reinterpret_cast <
const uint8_t*>(array_void);
char type_name[
100 ];
TypeName (info, N, type_name);
const intptr_t lane = intptr_t(lane_u);
const size_t begin =
static_cast <size_t>(HWY_MAX(
0 , lane -
2 ));
const size_t end = HWY_MIN(begin + max_lanes, N);
fprintf(stderr,
"%s %s [%d+ ->]:\n " , type_name, caption,
static_cast <
int >(begin));
for (size_t i = begin; i < end; ++i) {
const void * ptr = array_bytes + i * info.sizeof_t;
char str[
100 ];
ToString(info, ptr, str);
fprintf(stderr,
"%s," , str);
}
if (begin >= end) fprintf(stderr,
"(out of bounds)" );
fprintf(stderr,
"\n" );
}
}
// namespace detail
}
// namespace hwy
Messung V0.5 in Prozent C=95 H=98 G=96
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-05)
¤
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