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Overview
| Comment: | Do not include the P3 parameter on OP_Integer opcodes if the integer will fit in 32 bits. The P3 conversion is slow. (CVS 1494) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | fcd84ebabca72023e76e6954514948aa |
| User & Date: | drh 2004-05-30 01:38:43 |
Context
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2004-05-30
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| 01:51 | Faster version of sqlite3VdbeSerialGet. (CVS 1495) check-in: 80985505 user: drh tags: trunk | |
| 01:38 | Do not include the P3 parameter on OP_Integer opcodes if the integer will fit in 32 bits. The P3 conversion is slow. (CVS 1494) check-in: fcd84eba user: drh tags: trunk | |
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2004-05-29
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| 21:46 | A file format change for btree.c makes it between 10 and 20% faster. (CVS 1493) check-in: cbcaece7 user: drh tags: trunk | |
Changes
Changes to src/expr.c.
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** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains routines used for analyzing expressions and ** for generating VDBE code that evaluates expressions in SQLite. ** ** $Id: expr.c,v 1.132 2004/05/29 11:24:50 danielk1977 Exp $ */ #include "sqliteInt.h" #include <ctype.h> char const *sqlite3AffinityString(char affinity){ switch( affinity ){ case SQLITE_AFF_INTEGER: return "i"; ................................................................................ /* ** Generate an instruction that will put the integer describe by ** text z[0..n-1] on the stack. */ static void codeInteger(Vdbe *v, const char *z, int n){ int i; if( sqlite3GetInt32(z, &i) || (i=0, sqlite3FitsIn64Bits(z))!=0 ){ sqlite3VdbeOp3(v, OP_Integer, i, 0, z, n); }else{ sqlite3VdbeOp3(v, OP_Real, 0, 0, z, n); } } /* ** Generate code into the current Vdbe to evaluate the given |
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** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains routines used for analyzing expressions and ** for generating VDBE code that evaluates expressions in SQLite. ** ** $Id: expr.c,v 1.133 2004/05/30 01:38:43 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> char const *sqlite3AffinityString(char affinity){ switch( affinity ){ case SQLITE_AFF_INTEGER: return "i"; ................................................................................ /* ** Generate an instruction that will put the integer describe by ** text z[0..n-1] on the stack. */ static void codeInteger(Vdbe *v, const char *z, int n){ int i; if( sqlite3GetInt32(z, &i) ){ sqlite3VdbeAddOp(v, OP_Integer, i, 0); }else if( sqlite3FitsIn64Bits(z) ){ sqlite3VdbeOp3(v, OP_Integer, 0, 0, z, n); }else{ sqlite3VdbeOp3(v, OP_Real, 0, 0, z, n); } } /* ** Generate code into the current Vdbe to evaluate the given |
Changes to src/vdbemem.c.
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}
/*
** Convert the Mem to have representation MEM_Int only. All
** prior representations are invalidated. NULL is converted into 0.
*/
int sqlite3VdbeMemIntegerify(Mem *pMem){
if( pMem->flags & MEM_Int ){
/* Do nothing */
}else if( pMem->flags & MEM_Real ){
pMem->i = (i64)pMem->r;
}else if( pMem->flags & (MEM_Str|MEM_Blob) ){
if( sqlite3VdbeChangeEncoding(pMem, TEXT_Utf8)
|| sqlite3VdbeMemNulTerminate(pMem) ){
return SQLITE_NOMEM;
}
assert( pMem->z );
sqlite3atoi64(pMem->z, &pMem->i);
}else{
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}
/*
** Convert the Mem to have representation MEM_Int only. All
** prior representations are invalidated. NULL is converted into 0.
*/
int sqlite3VdbeMemIntegerify(Mem *pMem){
int flags = pMem->flags;
if( flags & MEM_Int ){
/* Do nothing */
}else if( flags & MEM_Real ){
pMem->i = (i64)pMem->r;
}else if( flags & (MEM_Str|MEM_Blob) ){
if( sqlite3VdbeChangeEncoding(pMem, TEXT_Utf8)
|| sqlite3VdbeMemNulTerminate(pMem) ){
return SQLITE_NOMEM;
}
assert( pMem->z );
sqlite3atoi64(pMem->z, &pMem->i);
}else{
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