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Change the OP_Next and OP_Prev opcodes so that they invoke

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sqlite3BtreeNext() and sqlite3BtreePrevious() directly rather than through
a function pointer, for improved performance and a decrease in code size.

FossilOrigin-Name: 9d13cbbef3cf64f281d3e100f23f1b2ed6e8d65920c7517a84e1e4f964ceff2e
This commit is contained in:
drh
2022-02-24 14:44:23 +00:00
parent b2d594a19b
commit a7c9dd546b
6 changed files with 31 additions and 58 deletions
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3
src/vdbe.h
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@@ -63,7 +63,6 @@ struct VdbeOp {
#ifdef SQLITE_ENABLE_CURSOR_HINTS
Expr *pExpr; /* Used when p4type is P4_EXPR */
#endif
int (*xAdvance)(BtCursor *, int);
} p4;
#ifdef SQLITE_ENABLE_EXPLAIN_COMMENTS
char *zComment; /* Comment to improve readability */
@@ -114,7 +113,7 @@ typedef struct VdbeOpList VdbeOpList;
#define P4_COLLSEQ (-2) /* P4 is a pointer to a CollSeq structure */
#define P4_INT32 (-3) /* P4 is a 32-bit signed integer */
#define P4_SUBPROGRAM (-4) /* P4 is a pointer to a SubProgram structure */
#define P4_ADVANCE (-5) /* P4 is a pointer to BtreeNext() or BtreePrev() */
/* (-5) // Available for reuse. Was P4_ADVANCE */
#define P4_TABLE (-6) /* P4 is a pointer to a Table structure */
/* Above do not own any resources. Must free those below */
#define P4_FREE_IF_LE (-7)