Remove out-of-date comment regarding use of Parse.pConstExpr.

FossilOrigin-Name: 71548f72ad578db3d6ee409956386ace23ab2258d37cdc29ef2fb126e48f1ee3

4 files changed, 13 insertions, 17 deletions

diff --git a/manifest b/manifest
index a9f17577c..8a392842f 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\sextra\stests\sfor\s[4b60a1c3].
-D 2023-09-08T19:18:02.485
+C Remove\sout-of-date\scomment\sregarding\suse\sof\sParse.pConstExpr.
+D 2023-09-09T17:53:55.931
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -648,7 +648,7 @@ F src/btmutex.c 79a43670447eacc651519a429f6ece9fd638563cf95b469d6891185ddae2b522
 F src/btree.c 7a37bdf09f338561880860681cb03499a60c3bb0869e539c58bc1d2cdd705ff2
 F src/btree.h 03e3356f5208bcab8eed4e094240fdac4a7f9f5ddf5e91045ce589f67d47c240
 F src/btreeInt.h 91a9e0c41a0e71fa91a742ec285c63dd8dcb38b73d14fae0ed7209174ff0fdc1
-F src/build.c a8ae3b32d9aa9bbd2c0e97d7c0dd80def9fbca408425de1608f57ee6f47f45f4
+F src/build.c 79a4edcee69df5f20963d7b11faf0820d25e6f8c11ef3a9f868d14be87834711
 F src/callback.c db3a45e376deff6a16c0058163fe0ae2b73a2945f3f408ca32cf74960b28d490
 F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
 F src/ctime.c db847fac81837ff5e5028a5f7505147ac645ae676104adc5bc08e356f243de40
@@ -656,7 +656,7 @@ F src/date.c eebc54a00e888d3c56147779e9f361b77d62fd69ff2008c5373946aa1ba1d574
 F src/dbpage.c f3eea5f7ec47e09ee7da40f42b25092ecbe961fc59566b8e5f705f34335b2387
 F src/dbstat.c ec92074baa61d883de58c945162d9e666c13cd7cf3a23bc38b4d1c4d0b2c2bef
 F src/delete.c cb766727c78e715f9fb7ec8a7d03658ed2a3016343ca687acfcec9083cdca500
-F src/expr.c 1affe0cc049683ef0ef3545d9b6901508556b0ef7e2892a344c3df6d7288d79d
+F src/expr.c c8c436f3c71179d1ecafc69623d562a1da006c2641dc0ef2884028317c7c584c
 F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
 F src/fkey.c a7fcbf7e66d14dbb73cf49f31489ebf66d0e6006c62b95246924a3bae9f37b36
 F src/func.c 154f08966f8a3a7cad6c438205df1abf58fb2826961a0683e82e120fa647e84c
@@ -2117,8 +2117,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 4b60a1c358c966f161601e749ccb0a7c5f4126e20350f4d6c83b6f35841fbe0a
-R 402c78da0fa0c1b8d4664a47a5b04f4d
+P 6357491bd1b97f7abddf1a83860f3763cd870033bddc74bd9994a6440fe8c762
+R 8a752dcf4f4102597c3c43c05826b63b
 U dan
-Z ab54932916132526ae926c40b8205f37
+Z 12968dd6d6930c9a75018f43087e8626
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 395fda141..0de2e6633 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-6357491bd1b97f7abddf1a83860f3763cd870033bddc74bd9994a6440fe8c762
\ No newline at end of file
+71548f72ad578db3d6ee409956386ace23ab2258d37cdc29ef2fb126e48f1ee3
\ No newline at end of file
diff --git a/src/build.c b/src/build.c
index fe3a781d6..59e3e23f0 100644
--- a/src/build.c
+++ b/src/build.c
@@ -246,19 +246,14 @@ void sqlite3FinishCoding(Parse *pParse){
     */
     if( pParse->pAinc ) sqlite3AutoincrementBegin(pParse);
 
-    /* Code constant expressions that where factored out of inner loops.
-    **
-    ** The pConstExpr list might also contain expressions that we simply
-    ** want to keep around until the Parse object is deleted.  Such
-    ** expressions have iConstExprReg==0.  Do not generate code for
-    ** those expressions, of course.
+    /* Code constant expressions that were factored out of inner loops. 
     */
     if( pParse->pConstExpr ){
       ExprList *pEL = pParse->pConstExpr;
       pParse->okConstFactor = 0;
       for(i=0; i<pEL->nExpr; i++){
-        int iReg = pEL->a[i].u.iConstExprReg;
-        sqlite3ExprCode(pParse, pEL->a[i].pExpr, iReg);
+        assert( pEL->a[i].u.iConstExprReg>0 );
+        sqlite3ExprCode(pParse, pEL->a[i].pExpr, pEL->a[i].u.iConstExprReg);
       }
     }
 
diff --git a/src/expr.c b/src/expr.c
index d96f36285..9f876e610 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -5048,7 +5048,7 @@ expr_code_doover:
 ** once. If no functions are involved, then factor the code out and put it at
 ** the end of the prepared statement in the initialization section.
 **
-** If regDest>=0 then the result is always stored in that register and the
+** If regDest>0 then the result is always stored in that register and the
 ** result is not reusable.  If regDest<0 then this routine is free to
 ** store the value wherever it wants.  The register where the expression
 ** is stored is returned.  When regDest<0, two identical expressions might
@@ -5063,6 +5063,7 @@ int sqlite3ExprCodeRunJustOnce(
 ){
   ExprList *p;
   assert( ConstFactorOk(pParse) );
+  assert( regDest!=0 );
   p = pParse->pConstExpr;
   if( regDest<0 && p ){
     struct ExprList_item *pItem;