Ensure that the nProgressLimit variable is always initialized in

sqlite3VdbeExec(), even if the routine jumps to its exit processing early.

FossilOrigin-Name: 167b91df77fff1a84791f6ab5f72239b90475475be690a838248119b6dd312f0

manifest

@@ -1,5 +1,5 @@
-C Enhancement\sthe\sprogress\scallback\smechanism\sso\sthat\sthe\sprogress\scallback\nis\salways\sinvoked\sat\sleast\sonce\sat\sthe\send\sof\sa\sprepared\sstatement\sif\sthe\s\nopcode\scount\shas\sbeen\sexceeded.\s\sThis\smakes\sthe\sprogress\scallback\smore\neffective\sat\slimiting\srun\stimes.\s\sThis\scheck-in\salso\sincludes\sand\sunrelated\nperformance\senhancement\sto\sOP_Column.
-D 2019-02-12T21:04:33.203
+C Ensure\sthat\sthe\snProgressLimit\svariable\sis\salways\sinitialized\sin\nsqlite3VdbeExec(),\seven\sif\sthe\sroutine\sjumps\sto\sits\sexit\sprocessing\searly.
+D 2019-02-12T22:58:32.377
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F Makefile.in 178d8eb6840771149cee40b322d1b3be30d330198c522c903c1b66fb5a1bfca4
@@ -585,7 +585,7 @@ F src/upsert.c 0dd81b40206841814d46942a7337786932475f085716042d0cb2fc7791bf8ca4
 F src/utf.c 810fbfebe12359f10bc2a011520a6e10879ab2a163bcb26c74768eab82ea62a5
 F src/util.c 82a2e3f691a3b654be872e305dab1f455e565dedf5e6a90c818c1ab307c00432
 F src/vacuum.c a9f389f41556c0ec310bc9169dc9476603c30a0a913ad92bfbc75c86886967ca
-F src/vdbe.c f72cc550d2c63f6d98f00991e6ed18b25232d5b216c059db52aeb73002c8202b
+F src/vdbe.c c67c8c46bea825421ee97511328fe1405537b586cbbe4db06e17c4ac5ab4dbed
 F src/vdbe.h 712bca562eaed1c25506b9faf9680bdc75fc42e2f4a1cd518d883fa79c7a4237
 F src/vdbeInt.h a76d5eed62c76bcd8de7afd3147fac1bc40c5a870582664bcd7d071ef437c37f
 F src/vdbeapi.c 57a2d794a8833f269b878dbc24e955369bdb379af6c4e93ebc5ce1a20fa3daf4
@@ -1804,7 +1804,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 93ae382e97c23c90312739481e47ef7f9bc475a8382c063a2de2986c950c0aec
-R 5a73d1580b6ec582f25521606ec44ea5
+P 68cce272e7f7cbc0c319ee8b7ff674d652cb1e95e903d99d848c41dff2b5d304
+R 1dd11fa4b345d5a202cdf255a23d5245
 U drh
-Z 5e5592ea1699abe7b2bf0590d6631ed0
+Z 5c1fab9a93beb29aa193da2ce5906eed

manifest.uuid

@@ -1 +1 @@
-68cce272e7f7cbc0c319ee8b7ff674d652cb1e95e903d99d848c41dff2b5d304
+167b91df77fff1a84791f6ab5f72239b90475475be690a838248119b6dd312f0

src/vdbe.c

@@ -622,6 +622,15 @@ int sqlite3VdbeExec(
 
   assert( p->magic==VDBE_MAGIC_RUN );  /* sqlite3_step() verifies this */
   sqlite3VdbeEnter(p);
+#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
+  if( db->xProgress ){
+    u32 iPrior = p->aCounter[SQLITE_STMTSTATUS_VM_STEP];
+    assert( 0 < db->nProgressOps );
+    nProgressLimit = db->nProgressOps - (iPrior % db->nProgressOps);
+  }else{
+    nProgressLimit = 0xffffffff;
+  }
+#endif
   if( p->rc==SQLITE_NOMEM ){
     /* This happens if a malloc() inside a call to sqlite3_column_text() or
     ** sqlite3_column_text16() failed.  */
@@ -635,15 +644,6 @@ int sqlite3VdbeExec(
   db->busyHandler.nBusy = 0;
   if( db->u1.isInterrupted ) goto abort_due_to_interrupt;
   sqlite3VdbeIOTraceSql(p);
-#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
-  if( db->xProgress ){
-    u32 iPrior = p->aCounter[SQLITE_STMTSTATUS_VM_STEP];
-    assert( 0 < db->nProgressOps );
-    nProgressLimit = db->nProgressOps - (iPrior % db->nProgressOps);
-  }else{
-    nProgressLimit = 0xffffffff;
-  }
-#endif
 #ifdef SQLITE_DEBUG
   sqlite3BeginBenignMalloc();
   if( p->pc==0