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Get rid of OP_Dup, OP_MemStore, OP_MemLoad, and OP_MemMove. Replace

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with OP_Copy, OP_SCopy, and OP_Move.  Add the infrastructure for
operation properties in1, in2, in3, out2, and out3 but do not yet
use any of these. (CVS 4682)

FossilOrigin-Name: cc149eb9ca3c672cc6fea3528353234ac2ed5745
This commit is contained in:
drh
2008-01-05 04:06:03 +00:00
parent 4c583128bd
commit b1fdb2adea
15 changed files with 285 additions and 201 deletions
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12
src/delete.c
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@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** in order to generate code for DELETE FROM statements.
**
** $Id: delete.c,v 1.148 2008/01/04 22:01:03 drh Exp $
** $Id: delete.c,v 1.149 2008/01/05 04:06:04 drh Exp $
*/
#include "sqliteInt.h"
@@ -68,8 +68,8 @@ void sqlite3CodeInsert(Parse *p, int iCur, u8 flags){
int iData = ++p->nMem;
int iKey = ++p->nMem;
Vdbe *v = sqlite3GetVdbe(p);
sqlite3VdbeAddOp2(v, OP_MemStore, iData, 1);
sqlite3VdbeAddOp2(v, OP_MemStore, iKey, 1);
sqlite3VdbeAddOp2(v, OP_Move, 0, iData);
sqlite3VdbeAddOp2(v, OP_Move, 0, iKey);
sqlite3VdbeAddOp3(v, OP_Insert, iCur, iData, iKey);
sqlite3VdbeChangeP5(v, sqlite3VdbeCurrentAddr(v)-1, flags);
}
@@ -87,7 +87,7 @@ int sqlite3StackToReg(Parse *p, int nVal){
assert(v);
p->nMem += nVal;
for(i=nVal-1; i>=0; i--){
sqlite3VdbeAddOp2(v, OP_MemStore, iRet+i, 1);
sqlite3VdbeAddOp2(v, OP_Move, 0, iRet+i);
}
return iRet;
}
@@ -96,7 +96,7 @@ void sqlite3RegToStack(Parse *p, int iReg, int nVal){
Vdbe *v = sqlite3GetVdbe(p);
assert(v);
for(i=0; i<nVal; i++){
sqlite3VdbeAddOp2(v, OP_MemLoad, iReg+i, 0);
sqlite3VdbeAddOp2(v, OP_SCopy, iReg+i, 0);
}
}
@@ -520,7 +520,7 @@ void sqlite3GenerateIndexKey(
for(j=0; j<pIdx->nColumn; j++){
int idx = pIdx->aiColumn[j];
if( idx==pTab->iPKey ){
sqlite3VdbeAddOp1(v, OP_Dup, j);
sqlite3VdbeAddOp1(v, OP_Copy, -j);
}else{
sqlite3VdbeAddOp2(v, OP_Column, iCur, idx);
sqlite3ColumnDefault(v, pTab, idx);