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Overview
Comment: | Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
d4ccf0f5c656c8f0e1c32d5f7971b131 |
User & Date: | drh 2013-11-21 17:24:18.502 |
Context
2013-11-21
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19:05 | Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and after the recent OP_Column refactoring, unreachable. (check-in: 23667f3ba0 user: drh tags: trunk) | |
17:24 | Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together for efficiency in switch() statements. OP_Prev and OP_PrevIfOpen too. (check-in: d4ccf0f5c6 user: drh tags: trunk) | |
16:08 | When one or more arguments to a function are constants, try to factor out just those arguments into initialization code. (check-in: 50d350abbc user: drh tags: trunk) | |
Changes
Changes to mkopcodeh.awk.
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132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | || name=="OP_Savepoint" \ || name=="OP_Checkpoint" \ || name=="OP_Vacuum" \ || name=="OP_JournalMode" \ || name=="OP_VUpdate" \ || name=="OP_VFilter" \ || name=="OP_Next" \ || name=="OP_SorterNext" \ || name=="OP_Prev" \ ){ cnt++ while( used[cnt] ) cnt++ op[name] = cnt used[cnt] = 1 def[cnt] = name } | > > | 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | || name=="OP_Savepoint" \ || name=="OP_Checkpoint" \ || name=="OP_Vacuum" \ || name=="OP_JournalMode" \ || name=="OP_VUpdate" \ || name=="OP_VFilter" \ || name=="OP_Next" \ || name=="OP_NextIfOpen" \ || name=="OP_SorterNext" \ || name=="OP_Prev" \ || name=="OP_PrevIfOpen" \ ){ cnt++ while( used[cnt] ) cnt++ op[name] = cnt used[cnt] = 1 def[cnt] = name } |
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