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Enhance the sqlite3GetTempRange() and sqlite3ReleaseTempRange() internal

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routines so that they use sqlite3GetTempReg() and sqlite3ReleaseTempReg()
when nReg==1.

FossilOrigin-Name: 4071da2f87a2f24a279ac3bced8c794ad374b47c
This commit is contained in:
drh
2016-09-06 14:37:05 +00:00
parent fad0e70c63
commit ed24da4b16
4 changed files with 16 additions and 15 deletions
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7
src/expr.c
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@@ -4991,10 +4991,11 @@ void sqlite3ReleaseTempReg(Parse *pParse, int iReg){
}
/*
** Allocate or deallocate a block of nReg consecutive registers
** Allocate or deallocate a block of nReg consecutive registers.
*/
int sqlite3GetTempRange(Parse *pParse, int nReg){
int i, n;
if( nReg==1 ) return sqlite3GetTempReg(pParse);
i = pParse->iRangeReg;
n = pParse->nRangeReg;
if( nReg<=n ){
@@ -5008,6 +5009,10 @@ int sqlite3GetTempRange(Parse *pParse, int nReg){
return i;
}
void sqlite3ReleaseTempRange(Parse *pParse, int iReg, int nReg){
if( nReg==1 ){
sqlite3ReleaseTempReg(pParse, iReg);
return;
}
sqlite3ExprCacheRemove(pParse, iReg, nReg);
if( nReg>pParse->nRangeReg ){
pParse->nRangeReg = nReg;