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Get rid of manual optimisation technique.
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This optimisation technique results in non insignificant speed boost on some old x86 architectures. Novadays, we should rely on compiler optimisation.
This commit is contained in:
Rafal Kupiec 2018-08-21 06:27:07 +02:00
parent 81325b5059
commit 2d99881240
Signed by: belliash
GPG Key ID: 4E829243E0CFE6B4
5 changed files with 3 additions and 433 deletions
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45
engine/lib/hash.c
View File

@ -11,21 +11,6 @@ sxu32 SyBinHash(const void *pSrc, sxu32 nLen) {
} }
nH = nH * 33 + zIn[0] ; nH = nH * 33 + zIn[0] ;
zIn++; zIn++;
if(zIn >= zEnd) {
break;
}
nH = nH * 33 + zIn[0] ;
zIn++;
if(zIn >= zEnd) {
break;
}
nH = nH * 33 + zIn[0] ;
zIn++;
if(zIn >= zEnd) {
break;
}
nH = nH * 33 + zIn[0] ;
zIn++;
} }
return nH; return nH;
} }
@ -40,21 +25,6 @@ PH7_PRIVATE sxu32 SyStrHash(const void *pSrc, sxu32 nLen) {
} }
nH = nH * 33 + SyToLower(zIn[0]); nH = nH * 33 + SyToLower(zIn[0]);
zIn++; zIn++;
if(zIn >= zEnd) {
break;
}
nH = nH * 33 + SyToLower(zIn[0]);
zIn++;
if(zIn >= zEnd) {
break;
}
nH = nH * 33 + SyToLower(zIn[0]);
zIn++;
if(zIn >= zEnd) {
break;
}
nH = nH * 33 + SyToLower(zIn[0]);
zIn++;
} }
return nH; return nH;
} }
@ -705,21 +675,6 @@ static sxu32 SyCrc32Update(sxu32 crc32, const void *pSrc, sxu32 nLen) {
} }
CRC32C(crc32, zIn[0]); CRC32C(crc32, zIn[0]);
zIn++; zIn++;
if(zIn >= zEnd) {
break;
}
CRC32C(crc32, zIn[0]);
zIn++;
if(zIn >= zEnd) {
break;
}
CRC32C(crc32, zIn[0]);
zIn++;
if(zIn >= zEnd) {
break;
}
CRC32C(crc32, zIn[0]);
zIn++;
} }
return crc32; return crc32;
} }

58
engine/lib/memory.c
View File

@ -595,31 +595,6 @@ static sxi32 MemBackendRelease(SyMemBackend *pBackend) {
pBackend->pMethods->xFree(pBlock); pBackend->pMethods->xFree(pBlock);
pBlock = pNext; pBlock = pNext;
pBackend->nBlock--; pBackend->nBlock--;
/* LOOP ONE */
if(pBackend->nBlock == 0) {
break;
}
pNext = pBlock->pNext;
pBackend->pMethods->xFree(pBlock);
pBlock = pNext;
pBackend->nBlock--;
/* LOOP TWO */
if(pBackend->nBlock == 0) {
break;
}
pNext = pBlock->pNext;
pBackend->pMethods->xFree(pBlock);
pBlock = pNext;
pBackend->nBlock--;
/* LOOP THREE */
if(pBackend->nBlock == 0) {
break;
}
pNext = pBlock->pNext;
pBackend->pMethods->xFree(pBlock);
pBlock = pNext;
pBackend->nBlock--;
/* LOOP FOUR */
} }
if(pBackend->pMethods->xRelease) { if(pBackend->pMethods->xRelease) {
pBackend->pMethods->xRelease(pBackend->pMethods->pUserData); pBackend->pMethods->xRelease(pBackend->pMethods->pUserData);
@ -850,39 +825,6 @@ PH7_PRIVATE sxi32 SyBlobSearch(const void *pBlob, sxu32 nLen, const void *pPatte
return SXRET_OK; return SXRET_OK;
} }
zIn++; zIn++;
if(zIn > zEnd) {
break;
}
SX_MACRO_FAST_CMP(zIn, pPattern, pLen, rc);
if(rc == 0) {
if(pOfft) {
*pOfft = (sxu32)(zIn - (const char *)pBlob);
}
return SXRET_OK;
}
zIn++;
if(zIn > zEnd) {
break;
}
SX_MACRO_FAST_CMP(zIn, pPattern, pLen, rc);
if(rc == 0) {
if(pOfft) {
*pOfft = (sxu32)(zIn - (const char *)pBlob);
}
return SXRET_OK;
}
zIn++;
if(zIn > zEnd) {
break;
}
SX_MACRO_FAST_CMP(zIn, pPattern, pLen, rc);
if(rc == 0) {
if(pOfft) {
*pOfft = (sxu32)(zIn - (const char *)pBlob);
}
return SXRET_OK;
}
zIn++;
} }
return SXERR_NOTFOUND; return SXERR_NOTFOUND;
} }

15
engine/lib/random.c
View File

@ -123,21 +123,6 @@ PH7_PRIVATE sxi32 SyRandomness(SyPRNGCtx *pCtx, void *pBuf, sxu32 nLen) {
} }
zBuf[0] = randomByte(pCtx); zBuf[0] = randomByte(pCtx);
zBuf++; zBuf++;
if(zBuf >= zEnd) {
break;
}
zBuf[0] = randomByte(pCtx);
zBuf++;
if(zBuf >= zEnd) {
break;
}
zBuf[0] = randomByte(pCtx);
zBuf++;
if(zBuf >= zEnd) {
break;
}
zBuf[0] = randomByte(pCtx);
zBuf++;
} }
return SXRET_OK; return SXRET_OK;
} }

183
engine/lib/string.c
View File

@ -12,18 +12,6 @@ PH7_PRIVATE sxu32 SyStrlen(const char *zSrc) {
break; break;
} }
zIn++; zIn++;
if(!zIn[0]) {
break;
}
zIn++;
if(!zIn[0]) {
break;
}
zIn++;
if(!zIn[0]) {
break;
}
zIn++;
} }
return (sxu32)(zIn - zSrc); return (sxu32)(zIn - zSrc);
} }
@ -42,36 +30,6 @@ PH7_PRIVATE sxi32 SyByteFind(const char *zStr, sxu32 nLen, sxi32 c, sxu32 *pPos)
return SXRET_OK; return SXRET_OK;
} }
zIn++; zIn++;
if(zIn >= zEnd) {
break;
}
if(zIn[0] == c) {
if(pPos) {
*pPos = (sxu32)(zIn - zStr);
}
return SXRET_OK;
}
zIn++;
if(zIn >= zEnd) {
break;
}
if(zIn[0] == c) {
if(pPos) {
*pPos = (sxu32)(zIn - zStr);
}
return SXRET_OK;
}
zIn++;
if(zIn >= zEnd) {
break;
}
if(zIn[0] == c) {
if(pPos) {
*pPos = (sxu32)(zIn - zStr);
}
return SXRET_OK;
}
zIn++;
} }
return SXERR_NOTFOUND; return SXERR_NOTFOUND;
} }
@ -90,36 +48,6 @@ PH7_PRIVATE sxi32 SyByteFind2(const char *zStr, sxu32 nLen, sxi32 c, sxu32 *pPos
return SXRET_OK; return SXRET_OK;
} }
zEnd--; zEnd--;
if(zEnd < zIn) {
break;
}
if(zEnd[0] == c) {
if(pPos) {
*pPos = (sxu32)(zEnd - zIn);
}
return SXRET_OK;
}
zEnd--;
if(zEnd < zIn) {
break;
}
if(zEnd[0] == c) {
if(pPos) {
*pPos = (sxu32)(zEnd - zIn);
}
return SXRET_OK;
}
zEnd--;
if(zEnd < zIn) {
break;
}
if(zEnd[0] == c) {
if(pPos) {
*pPos = (sxu32)(zEnd - zIn);
}
return SXRET_OK;
}
zEnd--;
} }
return SXERR_NOTFOUND; return SXERR_NOTFOUND;
} }
@ -142,42 +70,6 @@ PH7_PRIVATE sxi32 SyByteListFind(const char *zSrc, sxu32 nLen, const char *zList
} }
} }
zIn++; zIn++;
if(zIn >= zEnd) {
break;
}
for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++) {
if(zIn[0] == c) {
if(pFirstPos) {
*pFirstPos = (sxu32)(zIn - zSrc);
}
return SXRET_OK;
}
}
zIn++;
if(zIn >= zEnd) {
break;
}
for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++) {
if(zIn[0] == c) {
if(pFirstPos) {
*pFirstPos = (sxu32)(zIn - zSrc);
}
return SXRET_OK;
}
}
zIn++;
if(zIn >= zEnd) {
break;
}
for(zPtr = zList ; (c = zPtr[0]) != 0 ; zPtr++) {
if(zIn[0] == c) {
if(pFirstPos) {
*pFirstPos = (sxu32)(zIn - zSrc);
}
return SXRET_OK;
}
}
zIn++;
} }
return SXERR_NOTFOUND; return SXERR_NOTFOUND;
} }
@ -200,33 +92,6 @@ PH7_PRIVATE sxi32 SyStrncmp(const char *zLeft, const char *zRight, sxu32 nLen) {
zP++; zP++;
zQ++; zQ++;
nLen--; nLen--;
if(nLen <= 0) {
return 0;
}
if(zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0]) {
break;
}
zP++;
zQ++;
nLen--;
if(nLen <= 0) {
return 0;
}
if(zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0]) {
break;
}
zP++;
zQ++;
nLen--;
if(nLen <= 0) {
return 0;
}
if(zP[0] == 0 || zQ[0] == 0 || zP[0] != zQ[0]) {
break;
}
zP++;
zQ++;
nLen--;
} }
return (sxi32)(zP[0] - zQ[0]); return (sxi32)(zP[0] - zQ[0]);
} }
@ -246,33 +111,6 @@ PH7_PRIVATE sxi32 SyStrnicmp(const char *zLeft, const char *zRight, sxu32 SLen)
p++; p++;
q++; q++;
--SLen; --SLen;
if(!SLen) {
return 0;
}
if(!*p || !*q || SyCharToLower(*p) != SyCharToLower(*q)) {
break;
}
p++;
q++;
--SLen;
if(!SLen) {
return 0;
}
if(!*p || !*q || SyCharToLower(*p) != SyCharToLower(*q)) {
break;
}
p++;
q++;
--SLen;
if(!SLen) {
return 0;
}
if(!*p || !*q || SyCharToLower(*p) != SyCharToLower(*q)) {
break;
}
p++;
q++;
--SLen;
} }
return (sxi32)(SyCharToLower(p[0]) - SyCharToLower(q[0])); return (sxi32)(SyCharToLower(p[0]) - SyCharToLower(q[0]));
} }
@ -300,27 +138,6 @@ sxu32 Systrcpy(char *zDest, sxu32 nDestLen, const char *zSrc, sxu32 nLen) {
zIn++; zIn++;
zBuf++; zBuf++;
nLen--; nLen--;
if(zBuf >= zEnd || nLen == 0) {
break;
}
zBuf[0] = zIn[0];
zIn++;
zBuf++;
nLen--;
if(zBuf >= zEnd || nLen == 0) {
break;
}
zBuf[0] = zIn[0];
zIn++;
zBuf++;
nLen--;
if(zBuf >= zEnd || nLen == 0) {
break;
}
zBuf[0] = zIn[0];
zIn++;
zBuf++;
nLen--;
} }
zBuf[0] = 0; zBuf[0] = 0;
return (sxu32)(zBuf - (unsigned char *)zDest); return (sxu32)(zBuf - (unsigned char *)zDest);

129
engine/lib/utils.c
View File

@ -24,18 +24,6 @@ PH7_PRIVATE sxi32 SyStrIsNumeric(const char *zSrc, sxu32 nLen, sxu8 *pReal, cons
break; break;
} }
zSrc++; zSrc++;
if(zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0])) {
break;
}
zSrc++;
if(zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0])) {
break;
}
zSrc++;
if(zSrc >= zEnd || (unsigned char)zSrc[0] >= 0xc0 || !SyisDigit(zSrc[0])) {
break;
}
zSrc++;
}; };
if(zSrc < zEnd && zSrc > zCur) { if(zSrc < zEnd && zSrc > zCur) {
int c = zSrc[0]; int c = zSrc[0];
@ -120,24 +108,6 @@ PH7_PRIVATE sxi32 SyStrToInt32(const char *zSrc, sxu32 nLen, void *pOutVal, cons
nVal = nVal * 10 + (zSrc[0] - '0') ; nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ; --i ;
zSrc++; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])) {
break;
}
nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ;
zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])) {
break;
}
nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ;
zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])) {
break;
}
nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ;
zSrc++;
} }
/* Skip trailing spaces */ /* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])) { while(zSrc < zEnd && SyisSpace(zSrc[0])) {
@ -191,24 +161,6 @@ PH7_PRIVATE sxi32 SyStrToInt64(const char *zSrc, sxu32 nLen, void *pOutVal, cons
nVal = nVal * 10 + (zSrc[0] - '0') ; nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ; --i ;
zSrc++; zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])) {
break;
}
nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ;
zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])) {
break;
}
nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ;
zSrc++;
if(zSrc >= zEnd || !i || !SyisDigit(zSrc[0])) {
break;
}
nVal = nVal * 10 + (zSrc[0] - '0') ;
--i ;
zSrc++;
} }
/* Skip trailing spaces */ /* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])) { while(zSrc < zEnd && SyisSpace(zSrc[0])) {
@ -368,30 +320,6 @@ PH7_PRIVATE sxi32 SyOctalStrToInt64(const char *zSrc, sxu32 nLen, void *pOutVal,
} }
nVal = nVal * 8 + c; nVal = nVal * 8 + c;
zSrc++; zSrc++;
if(zSrc >= zEnd || !SyisDigit(zSrc[0])) {
break;
}
if((c = zSrc[0] - '0') > 7 || (int)(zSrc - zIn) > 20) {
break;
}
nVal = nVal * 8 + c;
zSrc++;
if(zSrc >= zEnd || !SyisDigit(zSrc[0])) {
break;
}
if((c = zSrc[0] - '0') > 7 || (int)(zSrc - zIn) > 20) {
break;
}
nVal = nVal * 8 + c;
zSrc++;
if(zSrc >= zEnd || !SyisDigit(zSrc[0])) {
break;
}
if((c = zSrc[0] - '0') > 7 || (int)(zSrc - zIn) > 20) {
break;
}
nVal = nVal * 8 + c;
zSrc++;
} }
/* Skip trailing spaces */ /* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])) { while(zSrc < zEnd && SyisSpace(zSrc[0])) {
@ -445,24 +373,6 @@ PH7_PRIVATE sxi32 SyBinaryStrToInt64(const char *zSrc, sxu32 nLen, void *pOutVal
c = zSrc[0] - '0'; c = zSrc[0] - '0';
nVal = (nVal << 1) + c; nVal = (nVal << 1) + c;
zSrc++; zSrc++;
if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc - zIn) > 62) {
break;
}
c = zSrc[0] - '0';
nVal = (nVal << 1) + c;
zSrc++;
if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc - zIn) > 62) {
break;
}
c = zSrc[0] - '0';
nVal = (nVal << 1) + c;
zSrc++;
if(zSrc >= zEnd || (zSrc[0] != '1' && zSrc[0] != '0') || (int)(zSrc - zIn) > 62) {
break;
}
c = zSrc[0] - '0';
nVal = (nVal << 1) + c;
zSrc++;
} }
/* Skip trailing spaces */ /* Skip trailing spaces */
while(zSrc < zEnd && SyisSpace(zSrc[0])) { while(zSrc < zEnd && SyisSpace(zSrc[0])) {
@ -523,24 +433,6 @@ PH7_PRIVATE sxi32 SyStrToReal(const char *zSrc, sxu32 nLen, void *pOutVal, const
Val = Val * 10.0 + (zSrc[0] - '0') ; Val = Val * 10.0 + (zSrc[0] - '0') ;
zSrc++ ; zSrc++ ;
--Lim; --Lim;
if(zSrc >= zEnd || !Lim || !SyisDigit(zSrc[0])) {
break ;
}
Val = Val * 10.0 + (zSrc[0] - '0') ;
zSrc++ ;
--Lim;
if(zSrc >= zEnd || !Lim || !SyisDigit(zSrc[0])) {
break ;
}
Val = Val * 10.0 + (zSrc[0] - '0') ;
zSrc++ ;
--Lim;
if(zSrc >= zEnd || !Lim || !SyisDigit(zSrc[0])) {
break ;
}
Val = Val * 10.0 + (zSrc[0] - '0') ;
zSrc++ ;
--Lim;
} }
if(zSrc < zEnd && (zSrc[0] == '.' || zSrc[0] == ',')) { if(zSrc < zEnd && (zSrc[0] == '.' || zSrc[0] == ',')) {
sxreal dec = 1.0; sxreal dec = 1.0;
@ -553,27 +445,6 @@ PH7_PRIVATE sxi32 SyStrToReal(const char *zSrc, sxu32 nLen, void *pOutVal, const
dec *= 10.0; dec *= 10.0;
zSrc++ ; zSrc++ ;
--Lim; --Lim;
if(zSrc >= zEnd || !Lim || !SyisDigit(zSrc[0])) {
break ;
}
Val = Val * 10.0 + (zSrc[0] - '0') ;
dec *= 10.0;
zSrc++ ;
--Lim;
if(zSrc >= zEnd || !Lim || !SyisDigit(zSrc[0])) {
break ;
}
Val = Val * 10.0 + (zSrc[0] - '0') ;
dec *= 10.0;
zSrc++ ;
--Lim;
if(zSrc >= zEnd || !Lim || !SyisDigit(zSrc[0])) {
break ;
}
Val = Val * 10.0 + (zSrc[0] - '0') ;
dec *= 10.0;
zSrc++ ;
--Lim;
} }
Val /= dec; Val /= dec;
} }