drh 13d7950267 Enhance the sqlite3VdbeMemAboutToChange() shallow-copy validation mechanism
by adding the new OP_ReleaseReg opcode to tell MemAboutToChange() that a
range of registers is no longer needed so that the source register can be
freely changed.  This is a change to debugging and test builds only and
does not impact release builds.  Fix for ticket
[c62c5e58524b204d] and [5ad2aa6921faa1ee].  The previous fix to ticket
[5ad2aa6921faa1ee] is backed out by this change since this change is a better
fix.

FossilOrigin-Name: 36fdeb4f0a66970a35de688b617f90899c89cfdfab659f864df99aa7ebf854ea
2019-12-23 02:18:49 +00:00
..
2019-12-06 01:23:38 +00:00