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Cleanup test_memcpy_alignment/test_memset_alignment. NFC
- Remove a bunch of unused C++ headers - Convert to C - Tabs to spaces - Apply coding style. I'm not sure we really need these tests anymore but maybe its good to have them for test our different optimized versions of memset/memcpy.
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// Copyright 2017 The Emscripten Authors. All rights reserved. | ||
// Emscripten is available under two separate licenses, the MIT license and the | ||
// University of Illinois/NCSA Open Source License. Both these licenses can be | ||
// found in the LICENSE file. | ||
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#include <memory.h> | ||
#include <string.h> | ||
#include <stdio.h> | ||
#include <stdlib.h> | ||
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char dst[1024*1024*2+64] = {}; | ||
char src[1024*1024*2+64] = {}; | ||
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#define GUARDSIZE 32 | ||
void test_memcpy(int copySize, int srcOffset, int dstOffset) { | ||
char *dstContent = dst + GUARDSIZE + dstOffset; | ||
char *srcContent = src + GUARDSIZE + srcOffset; | ||
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char *dstGuardBefore = dstContent - GUARDSIZE; | ||
char *dstGuardAfter = dstContent + copySize; | ||
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char *srcGuardBefore = srcContent - GUARDSIZE; | ||
char *srcGuardAfter = srcContent + copySize; | ||
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char guard = (char)rand(); | ||
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for (int i = 0; i < GUARDSIZE; ++i) { | ||
// Generate a guardband area around dst memory that should not change. | ||
dstGuardBefore[i] = (char)(guard ^ i); | ||
dstGuardAfter[i] = (char)(guard ^ i); | ||
} | ||
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// Generate copy source data | ||
char s = (char)rand(); | ||
for (int i = 0; i < copySize + srcOffset + 2*GUARDSIZE; ++i) { | ||
src[i] = (char)(s - i); | ||
} | ||
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memcpy(dstContent, srcContent, copySize); | ||
if (!!memcmp(dstContent, srcContent, copySize)) { | ||
printf("test_memcpy(copySize=%d, srcOffset=%d, dstOffset=%d failed!\n", copySize, srcOffset, dstOffset); | ||
exit(1); | ||
} | ||
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// Verify guardband area | ||
for (int i = 0; i < GUARDSIZE; ++i) { | ||
// Generate a guardband area around dst memory that should not change. | ||
if (dstGuardBefore[i] != (char)(guard ^ i)) { | ||
printf("test_memcpy(copySize=%d, srcOffset=%d, dstOffset=%d failed! Pre-guardband area at i=%d overwritten!\n", copySize, srcOffset, dstOffset, i); | ||
exit(1); | ||
} | ||
if (dstGuardAfter[i] != (char)(guard ^ i)) { | ||
printf("test_memcpy(copySize=%d, srcOffset=%d, dstOffset=%d failed! Post-guardband area at i=%d overwritten!\n", copySize, srcOffset, dstOffset, i); | ||
exit(1); | ||
} | ||
} | ||
} | ||
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void test_copysize(int copySize) { | ||
int offsets[6] = { 0, 3, 4, 5, 8, 11 }; | ||
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for (int srcOffset = 0; srcOffset < 6; ++srcOffset) { | ||
for (int dstOffset = 0; dstOffset < 6; ++dstOffset) { | ||
test_memcpy(copySize, offsets[srcOffset], offsets[dstOffset]); | ||
} | ||
} | ||
} | ||
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int main() { | ||
for (int copySize = 0; copySize < 128; ++copySize) { | ||
test_copysize(copySize); | ||
} | ||
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for (int copySizeI = 128; copySizeI <= 1048576; copySizeI <<= 1) { | ||
for (int copySizeJ = 1; copySizeJ <= 16; copySizeJ <<= 1) { | ||
test_copysize(copySizeI | copySizeJ); | ||
} | ||
} | ||
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printf("OK.\n"); | ||
} |
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// Copyright 2017 The Emscripten Authors. All rights reserved. | ||
// Emscripten is available under two separate licenses, the MIT license and the | ||
// University of Illinois/NCSA Open Source License. Both these licenses can be | ||
// found in the LICENSE file. | ||
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#include <memory.h> | ||
#include <string.h> | ||
#include <stdio.h> | ||
#include <stdlib.h> | ||
#include <time.h> | ||
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char ptr[1024*1024*2+64] = {}; | ||
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#define GUARDSIZE 32 | ||
void test_memset(int copySize, int offset) { | ||
char *content = ptr + GUARDSIZE + offset; | ||
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char *guardBefore = content - GUARDSIZE; | ||
char *guardAfter = content + copySize; | ||
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char guard = (char)rand(); | ||
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for (int i = 0; i < GUARDSIZE; ++i) { | ||
// Generate a guardband area around memory that should not change. | ||
guardBefore[i] = (char)(guard ^ i); | ||
guardAfter[i] = (char)(guard ^ i); | ||
} | ||
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// Generate fill source data | ||
char s = (char)(rand() ^ 0xF0); | ||
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memset(content, s, copySize); | ||
for (int i = 0; i < copySize; ++i) { | ||
if (content[i] != s) { | ||
printf("test_memset(copySize=%d, offset=%d failed!\n", copySize, offset); | ||
exit(1); | ||
} | ||
} | ||
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// Verify guardband area | ||
for (int i = 0; i < GUARDSIZE; ++i) { | ||
// Generate a guardband area around memory that should not change. | ||
if (guardBefore[i] != (char)(guard ^ i)) { | ||
printf("test_memset(copySize=%d, offset=%d failed! Pre-guardband area at i=%d overwritten!\n", copySize, offset, i); | ||
exit(1); | ||
} | ||
if (guardAfter[i] != (char)(guard ^ i)) { | ||
printf("test_memset(copySize=%d, offset=%d failed! Post-guardband area at i=%d overwritten!\n", copySize, offset, i); | ||
exit(1); | ||
} | ||
} | ||
} | ||
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void test_copysize(int copySize) { | ||
for (int offset = 0; offset < 31; ++offset) { | ||
test_memset(copySize, offset); | ||
} | ||
} | ||
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int main() { | ||
srand(time(NULL)); | ||
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for (int copySize = 0; copySize < 128; ++copySize) { | ||
test_copysize(copySize); | ||
} | ||
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for (int copySizeI = 128; copySizeI <= 1048576; copySizeI <<= 1) { | ||
for (int copySizeJ = 1; copySizeJ <= 16; copySizeJ <<= 1) { | ||
test_copysize(copySizeI | copySizeJ); | ||
} | ||
} | ||
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printf("OK.\n"); | ||
} |
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