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Additional small performance increase and size reduction to the

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sqlite3VdbeMakeLabel() mechanism.

FossilOrigin-Name: 1bdee199a71e0a6c247b85e72de9e3a3099b7179c33288735721facef3b96459
This commit is contained in:
drh
2018-12-29 14:23:22 +00:00
parent ec4ccdbcb1
commit d1d158bf5a
5 changed files with 31 additions and 21 deletions
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9
src/vdbe.h
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@@ -156,12 +156,11 @@ typedef struct VdbeOpList VdbeOpList;
#endif
/*
** The following macro converts a relative address in the p2 field
** of a VdbeOp structure into a negative number so that
** sqlite3VdbeAddOpList() knows that the address is relative. Calling
** the macro again restores the address.
** The following macro converts a label returned by sqlite3VdbeMakeLabel()
** into an index into the Parse.aLabel[] array that contains the resolved
** address of that label.
*/
#define ADDR(X) (-1-(X))
#define ADDR(X) (~(X))
/*
** The makefile scans the vdbe.c source file and creates the "opcodes.h"