From: mistachkin <mistachkin@noemail.net>
Date: Wed, 25 Jul 2018 15:12:29 +0000 (+0000)
Subject: Keep generated opcode values grouped together when required, even when they do not... 
X-Git-Tag: version-3.25.0~98
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=758784d1db96985ac833cdf2682e0f8511591c56;p=thirdparty%2Fsqlite.git

Keep generated opcode values grouped together when required, even when they do not correspond to a token.

FossilOrigin-Name: 6ee2950b272ede475e485bfaa7d413eaa81482fe9dd6452aeeaf95ff7938f7da
---

diff --git a/manifest b/manifest
index 5f60cd81d3..86325d35ca 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\sa\stypo\sin\sthe\sdocumentation\sfor\ssqlite3_snapshot_get().
-D 2018-07-25T07:29:20.225
+C Keep\sgenerated\sopcode\svalues\sgrouped\stogether\swhen\srequired,\seven\swhen\sthey\sdo\snot\scorrespond\sto\sa\stoken.
+D 2018-07-25T15:12:29.938
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F Makefile.in 0a3a6c81e6fcb969ff9106e882f0a08547014ba463cb6beca4c4efaecc924ee6
@@ -568,7 +568,7 @@ F src/upsert.c 47edd408cc73f8d3c00a140550d1ad180b407c146285947969dd09874802bf88
 F src/utf.c 810fbfebe12359f10bc2a011520a6e10879ab2a163bcb26c74768eab82ea62a5
 F src/util.c d9eb0a6c4aae1b00a7369eadd7ca0bbe946cb4c953b6751aa20d357c2f482157
 F src/vacuum.c 36e7d21a20c0bf6ef4ef7c399d192b5239410b7c4d3c1070fba4e30810d0b855
-F src/vdbe.c f5e6c0eab497c34f695a9b40800bbc09cd9488cabbd434048f3cbb3e85aaec38
+F src/vdbe.c f6358d397d3c53c8cb2d20a71db7a712097e6f50f8465838500e916b0ecf66a6
 F src/vdbe.h d93abdc8bc9295e0a256e582c19f548c545dc498319d108bbc9dd29de31c48a2
 F src/vdbeInt.h 2a45270d7f44870ca5452f48cdf3c56387019ae03331c008d670a7d0a3e1ba3f
 F src/vdbeapi.c af4a3de00d1851bcbc55b85dfbe52849aa2b1e17b4a5a1f3d9c257df7af361ff
@@ -1682,7 +1682,7 @@ F tool/mkctimec.tcl dd183b73ae1c28249669741c250525f0407e579a70482371668fd5f130d9
 F tool/mkkeywordhash.c 1f7f2ac1d9f262c08b67faaca47e6a68262ff39113fa4b27d1db2843b4c33e73
 F tool/mkmsvcmin.tcl cad0c7b54d7dd92bc87d59f36d4cc4f070eb2e625f14159dc2f5c4204e6a13ea
 F tool/mkopcodec.tcl d1b6362bd3aa80d5520d4d6f3765badf01f6c43c
-F tool/mkopcodeh.tcl 17d1ccc05a926e19e3a9679ea3e4d1aaa15ba753e2fa7363e6e81c80e0ef8b86
+F tool/mkopcodeh.tcl 352a4319c0ad869eb26442bf7c3b015aa15594c21f1cce5a6420dbe999367c21
 F tool/mkopts.tcl 680f785fdb09729fd9ac50632413da4eadbdf9071535e3f26d03795828ab07fa
 F tool/mkpragmatab.tcl 2144bc8550a6471a029db262a132d2df4b9e0db61b90398bf64f5b7b3f8d92cd
 F tool/mkshellc.tcl 1f45770aea226ac093a9c72f718efbb88a2a2833409ec2e1c4cecae4202626f5
@@ -1751,7 +1751,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 2bd593332da0aade467e7a4ee89e966aa6302f37540a2c5e23671f98a6cb599c
-R ec4b7ae75f333dd2e05c5e6caef8a051
-U dan
-Z c5f5094bf24e926b943d16fe8beeac07
+P cd9713c9a88cd30887c67f477abbbf8ef90299051a0b9bb52a04cf4132987c9c
+R 9757c642db2dc2dbf7799a759390f32b
+U mistachkin
+Z 98b1409b0cc6a8622023bca641aabc7a
diff --git a/manifest.uuid b/manifest.uuid
index 94dd68b8c6..28900f67f9 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-cd9713c9a88cd30887c67f477abbbf8ef90299051a0b9bb52a04cf4132987c9c
\ No newline at end of file
+6ee2950b272ede475e485bfaa7d413eaa81482fe9dd6452aeeaf95ff7938f7da
\ No newline at end of file
diff --git a/src/vdbe.c b/src/vdbe.c
index 39b307980d..a7b346a99d 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -3892,10 +3892,10 @@ case OP_ColumnsUsed: {
 **
 ** See also: Found, NotFound, SeekGt, SeekGe, SeekLt
 */
-case OP_SeekLT:         /* jump, in3 */
-case OP_SeekLE:         /* jump, in3 */
-case OP_SeekGE:         /* jump, in3 */
-case OP_SeekGT: {       /* jump, in3 */
+case OP_SeekLT:         /* jump, in3, group */
+case OP_SeekLE:         /* jump, in3, group */
+case OP_SeekGE:         /* jump, in3, group */
+case OP_SeekGT: {       /* jump, in3, group */
   int res;           /* Comparison result */
   int oc;            /* Opcode */
   VdbeCursor *pC;    /* The cursor to seek */
@@ -7219,8 +7219,8 @@ case OP_MaxPgcnt: {            /* out2 */
 **
 ** See also: Function0, AggStep, AggFinal
 */
-case OP_PureFunc0:
-case OP_Function0: {
+case OP_PureFunc0:              /* group */
+case OP_Function0: {            /* group */
   int n;
   sqlite3_context *pCtx;
 
@@ -7244,8 +7244,8 @@ case OP_Function0: {
   pOp->opcode += 2;
   /* Fall through into OP_Function */
 }
-case OP_PureFunc:
-case OP_Function: {
+case OP_PureFunc:              /* group */
+case OP_Function: {            /* group */
   int i;
   sqlite3_context *pCtx;
 
diff --git a/tool/mkopcodeh.tcl b/tool/mkopcodeh.tcl
index b9e55fa243..57017364a0 100644
--- a/tool/mkopcodeh.tcl
+++ b/tool/mkopcodeh.tcl
@@ -24,7 +24,7 @@
 #
 # This script also scans for lines of the form:
 #
-#       case OP_aaaa:       /* jump, in1, in2, in3, out2-prerelease, out3 */
+#       case OP_aaaa:       /* jump, in1, in2, in3, out2, out3 */
 #
 # When such comments are found on an opcode, it means that certain
 # properties apply to that opcode.  Set corresponding flags using the
@@ -33,7 +33,9 @@
 
 set in stdin
 set currentOp {}
+set prevName {}
 set nOp 0
+set nGroup 0
 while {![eof $in]} {
   set line [gets $in]
 
@@ -77,6 +79,7 @@ while {![eof $in]} {
     set name [string trim [lindex $line 1] :]
     if {$name=="OP_Abortable"} continue;  # put OP_Abortable last 
     set op($name) -1
+    set group($name) 0
     set jump($name) 0
     set in1($name) 0
     set in2($name) 0
@@ -97,15 +100,31 @@ while {![eof $in]} {
              set def($val) $name
            }
          }
-         jump {set jump($name) 1}
-         in1  {set in1($name) 1}
-         in2  {set in2($name) 1}
-         in3  {set in3($name) 1}
-         out2 {set out2($name) 1}
-         out3 {set out3($name) 1}
+         group {set group($name) 1}
+         jump  {set jump($name) 1}
+         in1   {set in1($name) 1}
+         in2   {set in2($name) 1}
+         in3   {set in3($name) 1}
+         out2  {set out2($name) 1}
+         out3  {set out3($name) 1}
        }
     }
+    if {$group($name)} {
+      set newGroup 0
+      if {[info exists groups($nGroup)]} {
+        if {$prevName=="" || !$group($prevName)} {
+          set newGroup 1
+        }
+      }
+      lappend groups($nGroup) $name
+      if {$newGroup} {incr nGroup}
+    } else {
+      if {$prevName!="" && $group($prevName)} {
+        incr nGroup
+      }
+    }
     set order($nOp) $name
+    set prevName $name
     incr nOp
   }
 }
@@ -181,8 +200,39 @@ for {set i 0} {$i<$nOp} {incr i} {
 }
 
 
-# Generate the numeric values for all remaining opcodes
+# Generate the numeric values for all remaining opcodes, while
+# preserving any groupings of opcodes (i.e. those that must be
+# together).
 #
+for {set g 0} {$g<$nGroup} {incr g} {
+  set gLen [llength $groups($g)]
+  set ok 0; set start -1
+  while {!$ok} {
+    set seek $cnt; incr seek
+    while {[info exists used($seek)]} {incr seek}
+    set ok 1; set start $seek
+    for {set j 0} {$j<$gLen} {incr j} {
+      incr seek
+      if {[info exists used($seek)]} {
+        set ok 0; break
+      }
+    }
+  }
+  if {$ok} {
+    set next $start
+    for {set j 0} {$j<$gLen} {incr j} {
+      set name [lindex $groups($g) $j]
+      if {$op($name)>=0} continue
+      set op($name) $next
+      set used($next) 1
+      set def($next) $name
+      incr next
+    }
+  } else {
+    error "cannot find opcodes for group: $groups($g)"
+  }
+}
+
 for {set i 0} {$i<$nOp} {incr i} {
   set name $order($i)
   if {$op($name)<0} {
@@ -203,7 +253,7 @@ for {set i 0} {$i<=$max} {incr i} {
   set name $def($i)
   puts -nonewline [format {#define %-16s %3d} $name $i]
   set com {}
-  if {$jump($name)} {
+  if {[info exists jump($name)] && $jump($name)} {
     lappend com "jump"
   }
   if {[info exists sameas($i)]} {