diff --git a/ext/fts5/fts5_storage.c b/ext/fts5/fts5_storage.c
index e4f5dd8f51..e052d03cd2 100644
--- a/ext/fts5/fts5_storage.c
+++ b/ext/fts5/fts5_storage.c
@@ -145,6 +145,7 @@ static int fts5StorageGetStmt(
   }
 
   *ppStmt = p->aStmt[eStmt];
+  sqlite3_reset(*ppStmt);
   return rc;
 }
 
@@ -1121,5 +1122,3 @@ int sqlite3Fts5StorageConfigValue(
   }
   return rc;
 }
-
-
diff --git a/ext/rbu/rbudiff.test b/ext/rbu/rbudiff.test
index 10be9e0d53..0ebc0dad0f 100644
--- a/ext/rbu/rbudiff.test
+++ b/ext/rbu/rbudiff.test
@@ -18,16 +18,7 @@ if {![info exists testdir]} {
 source $testdir/tester.tcl
 set testprefix rbudiff
 
-if {$tcl_platform(platform)=="windows"} {
-  set PROG "sqldiff.exe"
-} else {
-  set PROG "./sqldiff"
-}
-if {![file exe $PROG]} {
-  puts "rbudiff.test cannot run because $PROG is not available"
-  finish_test
-  return
-}
+set PROG [test_find_sqldiff]
 db close
 
 proc get_rbudiff_sql {db1 db2} {
diff --git a/manifest b/manifest
index ec9f64957f..c781c627e1 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\sfurther\stests\sfor\ssqlite3rbu_bp_progress().\sFix\sa\sproblem\sin\shandling\sWITHOUT\sROWID\stables\sin\sthe\ssame.
-D 2016-03-18T20:12:28.661
+C Merge\slatest\strunk\schanges,\sincluding\sfixes\sto\stest\sscript\srbudiff.test,\sinto\sthis\sbranch.
+D 2016-03-19T15:34:42.291
 F Makefile.in f53429fb2f313c099283659d0df6f20f932c861f
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc df0bf9ff7f8b3f4dd9fb4cc43f92fe58f6ec5c66
@@ -106,7 +106,7 @@ F ext/fts5/fts5_expr.c 35e9d92c89e7c7ea0759b73d24da1ecb7630a24b
 F ext/fts5/fts5_hash.c f3a7217c86eb8f272871be5f6aa1b6798960a337
 F ext/fts5/fts5_index.c d4f0c12e4f04bbc3a06b6da052039f2ce3e45438
 F ext/fts5/fts5_main.c b8501e1a6a11591c53b18ce7aea7e5386cfb0421
-F ext/fts5/fts5_storage.c f8343db90d8c95a4d4b52f6676e354b4649ffd6e
+F ext/fts5/fts5_storage.c 2a38c6fa5db193a6a00588865134450ef5812daa
 F ext/fts5/fts5_tcl.c f8731e0508299bd43f1a2eff7dbeaac870768966
 F ext/fts5/fts5_test_mi.c 783b86697ebf773c18fc109992426c0173a055bc
 F ext/fts5/fts5_test_tok.c db08af63673c3a7d39f053b36fd6e065017706be
@@ -238,7 +238,7 @@ F ext/rbu/rbuB.test c25bc325b8072a766e56bb76c001866b405925c2
 F ext/rbu/rbuC.test efe47db508a0269b683cb2a1913a425ffd39a831
 F ext/rbu/rbu_common.tcl 0398545fed614f807d5f0ba55a85a51f08ba8f1a
 F ext/rbu/rbucrash.test 8d2ed5d4b05fef6c00c2a6b5f7ead71fa172a695
-F ext/rbu/rbudiff.test 6cc806dc36389292f2a8f5842d0103721df4a07d
+F ext/rbu/rbudiff.test 7f0fbf54912b9f8898819504c8465df12c970a00
 F ext/rbu/rbufault.test cc0be8d5d392d98b0c2d6a51be377ea989250a89
 F ext/rbu/rbufault2.test 9a7f19edd6ea35c4c9f807d8a3db0a03a5670c06
 F ext/rbu/rbufts.test 828cd689da825f0a7b7c53ffc1f6f7fdb6fa5bda
@@ -305,7 +305,7 @@ F src/ctime.c 60e135af364d777a9ab41c97e5e89cd224da6198
 F src/date.c 0b73e681c11fca867fec554750c07fe0d4e417c1
 F src/dbstat.c c845548d4346e606e2f2b7d2e714ace2b8a7dd1b
 F src/delete.c 48802aa3ee6339f576d074336d3ae1b5f40e240f
-F src/expr.c c329d581e5d631153456369684d7d4bcd94c907d
+F src/expr.c 289ffac5240b60fee0a824d3d5ab2d7bd2630c94
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
 F src/fkey.c 5cb42d9a59e2a590776fd3fc8ff6f61d40df3c6e
 F src/func.c 552d300265aed09eea21f68ac742a440550c0062
@@ -343,8 +343,8 @@ F src/pager.h e1d38a2f14849e219df0f91f8323504d134c8a56
 F src/parse.y 5ea8c81c5c41b27887f41b4a7e1c58470d7d3821
 F src/pcache.c 647bb53a86b7bbcf55ad88089b3ea5a9170b90df
 F src/pcache.h 4d0ccaad264d360981ec5e6a2b596d6e85242545
-F src/pcache1.c 72f644dc9e1468c72922eff5904048427b817051
-F src/pragma.c f0670909e915179fec47e17f72f14660995b8022
+F src/pcache1.c c40cdb93586e21b5dd826b5e671240bd91c26b05
+F src/pragma.c e7e8f380efec6075a722822306435afc1eeca88a
 F src/pragma.h 64c78a648751b9f4f297276c4eb7507b14b4628c
 F src/prepare.c 22df6171aec1d86904ed2ad30c2348a5748aa04e
 F src/printf.c 63e6fb12bbe702dd664dc3703776c090383a5a26
@@ -356,12 +356,12 @@ F src/shell.c 5e0ab1e708dc294330ccd8230536e1801f60822e
 F src/sqlite.h.in 0235586b3fb639e85998d495c90f007657fd82af
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h dfbe62ffd95b99afe2140d8c35b180d11924072d
-F src/sqliteInt.h 84c673f27b77dfbd367cb3ed1de8b6f3b73102dc
+F src/sqliteInt.h 751ced73be8c449a75e075e0545cdd832ed3591e
 F src/sqliteLimit.h 7b28cf72cbd52f178bfc97ea266445e351f2cd24
 F src/status.c 70912d7be68e9e2dbc4010c93d344af61d4c59ba
 F src/table.c 5226df15ab9179b9ed558d89575ea0ce37b03fc9
 F src/tclsqlite.c 4bf3bea9b03aeac176ac114700f35f76a1de4c8a
-F src/test1.c 52965bd684ddcd7f22328ebd7d50fd0b6e51f0d4
+F src/test1.c 941f1cb50a601c30fd426a381e783b863c9d7d13
 F src/test2.c 5586f43fcd9a1be0830793cf9d354082c261b25b
 F src/test3.c a8887dabbbee3059af338f20d290084a63ed1b0f
 F src/test4.c d168f83cc78d02e8d35567bb5630e40dcd85ac1e
@@ -376,7 +376,7 @@ F src/test_backup.c 2e6e6a081870150f20c526a2e9d0d29cda47d803
 F src/test_bestindex.c 29af3cc3b963ffe5760c85d142b9b3e5302c1e3d
 F src/test_blob.c b2551a9b5573232db5f66f292307c37067937239
 F src/test_btree.c 2e9978eca99a9a4bfa8cae949efb00886860a64f
-F src/test_config.c 0dee90328e3dedf8ba002ee94b6a7e7ea7726fe4
+F src/test_config.c 0fb2571777ef43a8442be4f9c62a25f530872328
 F src/test_demovfs.c 0de72c2c89551629f58486fde5734b7d90758852
 F src/test_devsym.c e7498904e72ba7491d142d5c83b476c4e76993bc
 F src/test_fs.c f10f840ca4f8c72e4837908bd8347ac4bcab074b
@@ -521,9 +521,9 @@ F test/busy.test 76b4887f8b9160ba903c1ac22e8ff406ad6ae2f0
 F test/cache.test 13bc046b26210471ca6f2889aceb1ea52dc717de
 F test/cacheflush.test af25bb1509df04c1da10e38d8f322d66eceedf61
 F test/capi2.test 011c16da245fdc0106a2785035de6b242c05e738
-F test/capi3.test bf6f0308bbbba1e770dac13aa08e5c2ac61c7324
+F test/capi3.test db0731f6e2a94f96c6d4c478fedef4e0c077026c
 F test/capi3b.test efb2b9cfd127efa84433cd7a2d72ce0454ae0dc4
-F test/capi3c.test 06f6261f9e9b4ef6f76afcd9900f3665408af1c8
+F test/capi3c.test b28ec47692f0fc50eb61b2d464d8d52e816b3732
 F test/capi3d.test 485048dc5cd07bc68011e4917ad035ad6047ab82
 F test/capi3e.test 3d49c01ef2a1a55f41d73cba2b23b5059ec460fe
 F test/cast.test 4c275cbdc8202d6f9c54a3596701719868ac7dc3
@@ -890,7 +890,7 @@ F test/manydb.test 28385ae2087967aa05c38624cec7d96ec74feb3e
 F test/mem5.test c6460fba403c5703141348cd90de1c294188c68f
 F test/memdb.test c1f2a343ad14398d5d6debda6ea33e80d0dafcc7
 F test/memleak.test 10b9c6c57e19fc68c32941495e9ba1c50123f6e2
-F test/memsubsys1.test 0311bfb4edd2615e3aa56c7a9cf44574e4229077
+F test/memsubsys1.test 69924593856040e266fdd9aa1ecb4d5a0888eb12
 F test/memsubsys2.test 3e4a8d0c05fd3e5fa92017c64666730a520c7e08
 F test/minmax.test 42fbad0e81afaa6e0de41c960329f2b2c3526efd
 F test/minmax2.test b44bae787fc7b227597b01b0ca5575c7cb54d3bc
@@ -914,7 +914,7 @@ F test/multiplex.test efd015ca0b5b4a57dc9535b8feb1273eebeadb60
 F test/multiplex2.test 580ca5817c7edbe4cc68fa150609c9473393003a
 F test/multiplex3.test d228f59eac91839a977eac19f21d053f03e4d101
 F test/multiplex4.test e8ae4c4bd70606a5727743241f13b5701990abe4
-F test/mutex1.test e0a44072d98189003deae4b091106f085d94bea8
+F test/mutex1.test ea2cc74d97f077b9e74c84cbd024f14d79a8126f
 F test/mutex2.test bfeaeac2e73095b2ac32285d2756e3a65e681660
 F test/nan.test dacc57f80859c06a433d30839336fe227d2038b3
 F test/nolock.test 96e922d2d3db71c2dd6557c98e8027a28277b415
@@ -972,7 +972,7 @@ F test/rdonly.test 64e2696c322e3538df0b1ed624e21f9a23ed9ff8
 F test/regexp1.test 497ea812f264d12b6198d6e50a76be4a1973a9d8
 F test/regexp2.test aa7ffcc21350007a78361b82bcf3b74d12227144
 F test/reindex.test 44edd3966b474468b823d481eafef0c305022254
-F test/releasetest.tcl a246ecb14ed594bf44bf77bd21df873971d779bf
+F test/releasetest.tcl f2519836bebefcc7db36b4946e8028d4885baa59
 F test/resolver01.test f4022acafda7f4d40eca94dbf16bc5fc4ac30ceb
 F test/rollback.test 458fe73eb3ffdfdf9f6ba3e9b7350a6220414dea
 F test/rollback2.test 8435d6ff0f13f51d2a4181c232e706005fa90fc5
@@ -1062,7 +1062,7 @@ F test/speedtest1.c 1478cb3fb64ad30f291ddca87ca9dbd72ff552aa
 F test/spellfix.test f9c1f431e2c096c8775fec032952320c0e4700db
 F test/spellfix2.test dfc8f519a3fc204cb2dfa8b4f29821ae90f6f8c3
 F test/spellfix3.test 0f9efaaa502a0e0a09848028518a6fb096c8ad33
-F test/sqldiff1.test 8f6bc7c6a5b3585d350d779c6078869ba402f8f5
+F test/sqldiff1.test 28cd737cf1b0078b1ec1bbf425e674c47785835e
 F test/sqllimits1.test a74ee2a3740b9f9c2437c246d8fb77354862a142
 F test/sqllog.test 6af6cb0b09f4e44e1917e06ce85be7670302517a
 F test/stat.test b65bad7120c52583b8f0054d99eff80718119a77
@@ -1086,7 +1086,7 @@ F test/tclsqlite.test c6d9f546f79d15d0134c1e06583fb3ee0c3afad3
 F test/tempdb.test bd92eba8f20e16a9136e434e20b280794de3cdb6
 F test/temptable.test d2c9b87a54147161bcd1822e30c1d1cd891e5b30
 F test/temptrigger.test 8ec228b0db5d7ebc4ee9b458fc28cb9e7873f5e1
-F test/tester.tcl 859a7ccbe5bd65f0f8b524cd51c318d3edcd3008
+F test/tester.tcl 2a82a76c1704a1d5f6c71bcebcffc3041e4d9856
 F test/thread001.test 9f22fd3525a307ff42a326b6bc7b0465be1745a5
 F test/thread002.test e630504f8a06c00bf8bbe68528774dd96aeb2e58
 F test/thread003.test ee4c9efc3b86a6a2767516a37bd64251272560a7
@@ -1305,8 +1305,8 @@ F test/vtab_alter.test 9e374885248f69e251bdaacf480b04a197f125e5
 F test/vtab_err.test 0d4d8eb4def1d053ac7c5050df3024fd47a3fbd8
 F test/vtab_shared.test 5253bff2355a9a3f014c15337da7e177ab0ef8ad
 F test/wal.test 613efec03e517e1775d86b993a54877d2e29a477
-F test/wal2.test 25ae059e900dbb584e0775627e45415ba5940df1
-F test/wal3.test 5dd734147f1f8f958c5261a1f2775d346d7013ce
+F test/wal2.test 56b0bc95b8693a0be294f8d210c49025dd094bd7
+F test/wal3.test 2a93004bc0fb2b5c29888964024695bade278ab2
 F test/wal4.test 4744e155cd6299c6bd99d3eab1c82f77db9cdb3c
 F test/wal5.test 9c11da7aeccd83a46d79a556ad11a18d3cb15aa9
 F test/wal6.test a9d6aa635b9d63607dabdc11406f5f96ca986635
@@ -1424,7 +1424,7 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 7ce07da76b5e745783e703a834417d725b7d45fd
 F tool/split-sqlite3c.tcl d9be87f1c340285a3e081eb19b4a247981ed290c
-F tool/sqldiff.c 5a26205111e6fa856d9b1535b1637744dcdb930b
+F tool/sqldiff.c 0e9b76f9f4a72856d0384f5e0a038bbeb78dd222
 F tool/srcck1.c 4f65e1a6748e42f24c0ea629dddc934d821c729a
 F tool/stack_usage.tcl f8e71b92cdb099a147dad572375595eae55eca43
 F tool/symbols-mingw.sh 4dbcea7e74768305384c9fd2ed2b41bbf9f0414d
@@ -1457,7 +1457,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 1a1b69e87eb7d18f76f5b733e44da75136a686b6
-R 4f2c92bc8e3f772f06e8b5d5663259fa
+P 65e02368e2b6cec349ea71af5a456d6783b0d15e 41c29c123ff347db720ed1a541c0b2ffc04670aa
+R 4672da949ef7e2ff98784ed13b0995da
 U dan
-Z bf41c4bf32ca5beb18733d3a05925431
+Z 877e0d37b31de9a8b8cab0dfbc82a372
diff --git a/manifest.uuid b/manifest.uuid
index 5b3c08d363..5a343a598e 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-65e02368e2b6cec349ea71af5a456d6783b0d15e
\ No newline at end of file
+734fc68fb12f06e97026d4637138b82b37809f5b
\ No newline at end of file
diff --git a/src/expr.c b/src/expr.c
index 3672d02df1..998c94f231 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -1283,7 +1283,8 @@ u32 sqlite3ExprListFlags(const ExprList *pList){
   if( pList ){
     for(i=0; i<pList->nExpr; i++){
        Expr *pExpr = pList->a[i].pExpr;
-       if( ALWAYS(pExpr) ) m |= pExpr->flags;
+       assert( pExpr!=0 );
+       m |= pExpr->flags;
     }
   }
   return m;
@@ -3548,6 +3549,13 @@ void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
       sqlite3ExprIfFalse(pParse, pExpr->pLeft, dest, jumpIfNull);
       break;
     }
+    case TK_IS:
+    case TK_ISNOT:
+      testcase( op==TK_IS );
+      testcase( op==TK_ISNOT );
+      op = (op==TK_IS) ? TK_EQ : TK_NE;
+      jumpIfNull = SQLITE_NULLEQ;
+      /* Fall thru */
     case TK_LT:
     case TK_LE:
     case TK_GT:
@@ -3563,23 +3571,12 @@ void sqlite3ExprIfTrue(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
       assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
       assert(TK_GT==OP_Gt); testcase(op==OP_Gt); VdbeCoverageIf(v,op==OP_Gt);
       assert(TK_GE==OP_Ge); testcase(op==OP_Ge); VdbeCoverageIf(v,op==OP_Ge);
-      assert(TK_EQ==OP_Eq); testcase(op==OP_Eq); VdbeCoverageIf(v,op==OP_Eq);
-      assert(TK_NE==OP_Ne); testcase(op==OP_Ne); VdbeCoverageIf(v,op==OP_Ne);
-      testcase( regFree1==0 );
-      testcase( regFree2==0 );
-      break;
-    }
-    case TK_IS:
-    case TK_ISNOT: {
-      testcase( op==TK_IS );
-      testcase( op==TK_ISNOT );
-      r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      r2 = sqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
-      op = (op==TK_IS) ? TK_EQ : TK_NE;
-      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
-                  r1, r2, dest, SQLITE_NULLEQ);
-      VdbeCoverageIf(v, op==TK_EQ);
-      VdbeCoverageIf(v, op==TK_NE);
+      assert(TK_EQ==OP_Eq); testcase(op==OP_Eq);
+      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull==SQLITE_NULLEQ);
+      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull!=SQLITE_NULLEQ);
+      assert(TK_NE==OP_Ne); testcase(op==OP_Ne);
+      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull==SQLITE_NULLEQ);
+      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull!=SQLITE_NULLEQ);
       testcase( regFree1==0 );
       testcase( regFree2==0 );
       break;
@@ -3704,6 +3701,13 @@ void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
       sqlite3ExprIfTrue(pParse, pExpr->pLeft, dest, jumpIfNull);
       break;
     }
+    case TK_IS:
+    case TK_ISNOT:
+      testcase( pExpr->op==TK_IS );
+      testcase( pExpr->op==TK_ISNOT );
+      op = (pExpr->op==TK_IS) ? TK_NE : TK_EQ;
+      jumpIfNull = SQLITE_NULLEQ;
+      /* Fall thru */
     case TK_LT:
     case TK_LE:
     case TK_GT:
@@ -3719,23 +3723,12 @@ void sqlite3ExprIfFalse(Parse *pParse, Expr *pExpr, int dest, int jumpIfNull){
       assert(TK_LE==OP_Le); testcase(op==OP_Le); VdbeCoverageIf(v,op==OP_Le);
       assert(TK_GT==OP_Gt); testcase(op==OP_Gt); VdbeCoverageIf(v,op==OP_Gt);
       assert(TK_GE==OP_Ge); testcase(op==OP_Ge); VdbeCoverageIf(v,op==OP_Ge);
-      assert(TK_EQ==OP_Eq); testcase(op==OP_Eq); VdbeCoverageIf(v,op==OP_Eq);
-      assert(TK_NE==OP_Ne); testcase(op==OP_Ne); VdbeCoverageIf(v,op==OP_Ne);
-      testcase( regFree1==0 );
-      testcase( regFree2==0 );
-      break;
-    }
-    case TK_IS:
-    case TK_ISNOT: {
-      testcase( pExpr->op==TK_IS );
-      testcase( pExpr->op==TK_ISNOT );
-      r1 = sqlite3ExprCodeTemp(pParse, pExpr->pLeft, &regFree1);
-      r2 = sqlite3ExprCodeTemp(pParse, pExpr->pRight, &regFree2);
-      op = (pExpr->op==TK_IS) ? TK_NE : TK_EQ;
-      codeCompare(pParse, pExpr->pLeft, pExpr->pRight, op,
-                  r1, r2, dest, SQLITE_NULLEQ);
-      VdbeCoverageIf(v, op==TK_EQ);
-      VdbeCoverageIf(v, op==TK_NE);
+      assert(TK_EQ==OP_Eq); testcase(op==OP_Eq);
+      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull!=SQLITE_NULLEQ);
+      VdbeCoverageIf(v, op==OP_Eq && jumpIfNull==SQLITE_NULLEQ);
+      assert(TK_NE==OP_Ne); testcase(op==OP_Ne);
+      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull!=SQLITE_NULLEQ);
+      VdbeCoverageIf(v, op==OP_Ne && jumpIfNull==SQLITE_NULLEQ);
       testcase( regFree1==0 );
       testcase( regFree2==0 );
       break;
@@ -4258,3 +4251,26 @@ void sqlite3ClearTempRegCache(Parse *pParse){
   pParse->nTempReg = 0;
   pParse->nRangeReg = 0;
 }
+
+/*
+** Validate that no temporary register falls within the range of
+** iFirst..iLast, inclusive.  This routine is only call from within assert()
+** statements.
+*/
+#ifdef SQLITE_DEBUG
+int sqlite3NoTempsInRange(Parse *pParse, int iFirst, int iLast){
+  int i;
+  if( pParse->nRangeReg>0
+   && pParse->iRangeReg+pParse->nRangeReg<iLast
+   && pParse->iRangeReg>=iFirst
+  ){
+     return 0;
+  }
+  for(i=0; i<pParse->nTempReg; i++){
+    if( pParse->aTempReg[i]>=iFirst && pParse->aTempReg[i]<=iLast ){
+      return 0;
+    }
+  }
+  return 1;
+}
+#endif /* SQLITE_DEBUG */
diff --git a/src/pcache1.c b/src/pcache1.c
index 7147f6a7a8..d168e7fbcb 100644
--- a/src/pcache1.c
+++ b/src/pcache1.c
@@ -348,7 +348,6 @@ static void *pcache1Alloc(int nByte){
 ** Free an allocated buffer obtained from pcache1Alloc().
 */
 static void pcache1Free(void *p){
-  int nFreed = 0;
   if( p==0 ) return;
   if( SQLITE_WITHIN(p, pcache1.pStart, pcache1.pEnd) ){
     PgFreeslot *pSlot;
@@ -365,10 +364,13 @@ static void pcache1Free(void *p){
     assert( sqlite3MemdebugHasType(p, MEMTYPE_PCACHE) );
     sqlite3MemdebugSetType(p, MEMTYPE_HEAP);
 #ifndef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
-    nFreed = sqlite3MallocSize(p);
-    sqlite3_mutex_enter(pcache1.mutex);
-    sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_OVERFLOW, nFreed);
-    sqlite3_mutex_leave(pcache1.mutex);
+    {
+      int nFreed = 0;
+      nFreed = sqlite3MallocSize(p);
+      sqlite3_mutex_enter(pcache1.mutex);
+      sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_OVERFLOW, nFreed);
+      sqlite3_mutex_leave(pcache1.mutex);
+    }
 #endif
     sqlite3_free(p);
   }
diff --git a/src/pragma.c b/src/pragma.c
index 54858afbf1..65c43ad1e5 100644
--- a/src/pragma.c
+++ b/src/pragma.c
@@ -1441,6 +1441,8 @@ void sqlite3Pragma(
       Hash *pTbls;
       int *aRoot;
       int cnt = 0;
+      int mxIdx = 0;
+      int nIdx;
 
       if( OMIT_TEMPDB && i==1 ) continue;
       if( iDb>=0 && i!=iDb ) continue;
@@ -1462,7 +1464,8 @@ void sqlite3Pragma(
         Table *pTab = sqliteHashData(x);
         Index *pIdx;
         if( HasRowid(pTab) ) cnt++;
-        for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){ cnt++; }
+        for(nIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdx++){ cnt++; }
+        if( nIdx>mxIdx ) mxIdx = nIdx;
       }
       aRoot = sqlite3DbMallocRawNN(db, sizeof(int)*(cnt+1));
       if( aRoot==0 ) break;
@@ -1477,7 +1480,7 @@ void sqlite3Pragma(
       aRoot[cnt] = 0;
 
       /* Make sure sufficient number of registers have been allocated */
-      pParse->nMem = MAX( pParse->nMem, 14 );
+      pParse->nMem = MAX( pParse->nMem, 8+mxIdx );
 
       /* Do the b-tree integrity checks */
       sqlite3VdbeAddOp4(v, OP_IntegrityCk, 2, cnt, 1, (char*)aRoot,P4_INTARRAY);
@@ -1514,7 +1517,8 @@ void sqlite3Pragma(
         for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
           sqlite3VdbeAddOp2(v, OP_Integer, 0, 8+j); /* index entries counter */
         }
-        pParse->nMem = MAX(pParse->nMem, 8+j);
+        assert( pParse->nMem>=8+j );
+        assert( sqlite3NoTempsInRange(pParse,1,7+j) );
         sqlite3VdbeAddOp2(v, OP_Rewind, iDataCur, 0); VdbeCoverage(v);
         loopTop = sqlite3VdbeAddOp2(v, OP_AddImm, 7, 1);
         /* Verify that all NOT NULL columns really are NOT NULL */
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index f2f485778a..3b97533090 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -3419,6 +3419,9 @@ void sqlite3ReleaseTempReg(Parse*,int);
 int sqlite3GetTempRange(Parse*,int);
 void sqlite3ReleaseTempRange(Parse*,int,int);
 void sqlite3ClearTempRegCache(Parse*);
+#ifdef SQLITE_DEBUG
+int sqlite3NoTempsInRange(Parse*,int,int);
+#endif
 Expr *sqlite3ExprAlloc(sqlite3*,int,const Token*,int);
 Expr *sqlite3Expr(sqlite3*,int,const char*);
 void sqlite3ExprAttachSubtrees(sqlite3*,Expr*,Expr*,Expr*);
diff --git a/src/test1.c b/src/test1.c
index 8ad653ca6c..0de5faf82d 100644
--- a/src/test1.c
+++ b/src/test1.c
@@ -1931,6 +1931,8 @@ static int test_load_extension(
 #ifdef SQLITE_OMIT_LOAD_EXTENSION
   rc = SQLITE_ERROR;
   zErr = sqlite3_mprintf("this build omits sqlite3_load_extension()");
+  (void)zProc;
+  (void)zFile;
 #else
   rc = sqlite3_load_extension(db, zFile, zProc, &zErr);
 #endif
diff --git a/src/test_config.c b/src/test_config.c
index 30b421e00b..7a51accc6f 100644
--- a/src/test_config.c
+++ b/src/test_config.c
@@ -79,6 +79,13 @@ static void set_options(Tcl_Interp *interp){
   Tcl_SetVar2(interp, "sqlite_options", "debug", "0", TCL_GLOBAL_ONLY);
 #endif
 
+#ifdef SQLITE_DEFAULT_CKPTFULLFSYNC
+  Tcl_SetVar2(interp, "sqlite_options", "default_ckptfullfsync", 
+              SQLITE_DEFAULT_CKPTFULLFSYNC ? "1" : "0", TCL_GLOBAL_ONLY);
+#else
+  Tcl_SetVar2(interp, "sqlite_options", "default_ckptfullfsync", "0", TCL_GLOBAL_ONLY);
+#endif
+
 #ifdef SQLITE_DIRECT_OVERFLOW_READ
   Tcl_SetVar2(interp, "sqlite_options", "direct_read", "1", TCL_GLOBAL_ONLY);
 #else
@@ -97,6 +104,12 @@ static void set_options(Tcl_Interp *interp){
   Tcl_SetVar2(interp, "sqlite_options", "lfs", "1", TCL_GLOBAL_ONLY);
 #endif
 
+#ifdef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS
+  Tcl_SetVar2(interp, "sqlite_options", "pagecache_overflow_stats","0",TCL_GLOBAL_ONLY);
+#else
+  Tcl_SetVar2(interp, "sqlite_options", "pagecache_overflow_stats","1",TCL_GLOBAL_ONLY);
+#endif
+
 #if SQLITE_MAX_MMAP_SIZE>0
   Tcl_SetVar2(interp, "sqlite_options", "mmap", "1", TCL_GLOBAL_ONLY);
 #else
@@ -576,7 +589,11 @@ Tcl_SetVar2(interp, "sqlite_options", "mergesort", "1", TCL_GLOBAL_ONLY);
 #endif
 
   Tcl_SetVar2(interp, "sqlite_options", "threadsafe", 
-      STRINGVALUE(SQLITE_THREADSAFE), TCL_GLOBAL_ONLY);
+      SQLITE_THREADSAFE ? "1" : "0", TCL_GLOBAL_ONLY);
+  Tcl_SetVar2(interp, "sqlite_options", "threadsafe1", 
+      SQLITE_THREADSAFE==1 ? "1" : "0", TCL_GLOBAL_ONLY);
+  Tcl_SetVar2(interp, "sqlite_options", "threadsafe2", 
+      SQLITE_THREADSAFE==2 ? "1" : "0", TCL_GLOBAL_ONLY);
   assert( sqlite3_threadsafe()==SQLITE_THREADSAFE );
 
 #ifdef SQLITE_OMIT_TEMPDB
diff --git a/test/capi3.test b/test/capi3.test
index 163bb19ada..684872bc6b 100644
--- a/test/capi3.test
+++ b/test/capi3.test
@@ -925,19 +925,20 @@ do_test capi3-11.9.3 {
 do_test capi3-11.10 {
   sqlite3_step $STMT
 } {SQLITE_ROW}
-ifcapable !autoreset {
-  # If SQLITE_OMIT_AUTORESET is defined, then the statement must be
-  # reset() before it can be passed to step() again.
-  do_test capi3-11.11a { sqlite3_step $STMT } {SQLITE_MISUSE}
-  do_test capi3-11.11b { sqlite3_reset $STMT } {SQLITE_ABORT}
-}
 do_test capi3-11.11 {
   sqlite3_step $STMT
 } {SQLITE_DONE}
-do_test capi3-11.12 {
-  sqlite3_step $STMT
-  sqlite3_step $STMT
-} {SQLITE_ROW}
+ifcapable api_armor {
+  do_test capi3-11.12armor {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_MISUSE}
+} else {
+  do_test capi3-11.12 {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+}
 do_test capi3-11.13 {
   sqlite3_finalize $STMT
 } {SQLITE_OK}
diff --git a/test/capi3c.test b/test/capi3c.test
index 15307a7f7a..91c02561b1 100644
--- a/test/capi3c.test
+++ b/test/capi3c.test
@@ -865,19 +865,20 @@ do_test capi3c-11.9.3 {
 do_test capi3c-11.10 {
   sqlite3_step $STMT
 } {SQLITE_ROW}
-ifcapable !autoreset {
-  # If SQLITE_OMIT_AUTORESET is defined, then the statement must be
-  # reset() before it can be passed to step() again.
-  do_test capi3-11.11a { sqlite3_step $STMT } {SQLITE_MISUSE}
-  do_test capi3-11.11b { sqlite3_reset $STMT } {SQLITE_ABORT}
-}
 do_test capi3c-11.11 {
   sqlite3_step $STMT
 } {SQLITE_DONE}
-do_test capi3c-11.12 {
-  sqlite3_step $STMT
-  sqlite3_step $STMT
-} {SQLITE_ROW}
+ifcapable api_armor {
+  do_test capi3c-11.12armor {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_MISUSE}
+} else {
+  do_test capi3c-11.12 {
+    sqlite3_step $STMT
+    sqlite3_step $STMT
+  } {SQLITE_ROW}
+}
 do_test capi3c-11.13 {
   sqlite3_finalize $STMT
 } {SQLITE_OK}
diff --git a/test/memsubsys1.test b/test/memsubsys1.test
index e9a4cf08a8..f0b060fc9f 100644
--- a/test/memsubsys1.test
+++ b/test/memsubsys1.test
@@ -100,10 +100,12 @@ reset_highwater_marks
 build_test_db memsubsys1-2 {PRAGMA page_size=1024; PRAGMA mmap_size=0}
 #show_memstats
 set MEMORY_MANAGEMENT $sqlite_options(memorymanage)
-ifcapable !malloc_usable_size {
- do_test memsubsys1-2.3 {
-    set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2]
-  } [expr ($TEMP_STORE>1 || $MEMORY_MANAGEMENT==0)*1024]
+ifcapable pagecache_overflow_stats {
+  ifcapable !malloc_usable_size {
+    do_test memsubsys1-2.3 {
+      set pg_ovfl [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 0] 2]
+    } [expr ($TEMP_STORE>1 || $MEMORY_MANAGEMENT==0)*1024]
+  }
 }
 do_test memsubsys1-2.4 {
   set pg_used [lindex [sqlite3_status SQLITE_STATUS_PAGECACHE_USED 0] 2]
diff --git a/test/mutex1.test b/test/mutex1.test
index 340e271175..f567a0d930 100644
--- a/test/mutex1.test
+++ b/test/mutex1.test
@@ -97,7 +97,7 @@ do_test mutex1-1.9 {
 #   * Multi-threaded mode,
 #   * Single-threaded mode.
 #
-ifcapable threadsafe&&shared_cache {
+ifcapable threadsafe1&&shared_cache {
   set enable_shared_cache [sqlite3_enable_shared_cache 1]
   foreach {mode mutexes} {
     singlethread {}
diff --git a/test/releasetest.tcl b/test/releasetest.tcl
index 2bcf1aa511..15f64e3218 100644
--- a/test/releasetest.tcl
+++ b/test/releasetest.tcl
@@ -174,24 +174,47 @@ array set ::Configs [strip_comments {
     -O2
     -DSQLITE_ENABLE_LOCKING_STYLE=1
   }
-  "OS-X" {
+  "Apple" {
     -O1   # Avoid a compiler bug in gcc 4.2.1 build 5658
-    -DSQLITE_OMIT_LOAD_EXTENSION=1
-    -DSQLITE_DEFAULT_MEMSTATUS=0
-    -DSQLITE_THREADSAFE=2
-    -DSQLITE_OS_UNIX=1
-    -DSQLITE_ENABLE_JSON1=1
-    -DSQLITE_ENABLE_LOCKING_STYLE=1
-    -DUSE_PREAD=1
-    -DSQLITE_ENABLE_RTREE=1
+    -DHAVE_GMTIME_R=1
+    -DHAVE_ISNAN=1
+    -DHAVE_LOCALTIME_R=1
+    -DHAVE_PREAD=1
+    -DHAVE_PWRITE=1
+    -DHAVE_USLEEP=1
+    -DHAVE_USLEEP=1
+    -DHAVE_UTIME=1
+    -DSQLITE_DEFAULT_CACHE_SIZE=1000
+    -DSQLITE_DEFAULT_CKPTFULLFSYNC=1
+    -DSQLITE_DEFAULT_MEMSTATUS=1
+    -DSQLITE_DEFAULT_PAGE_SIZE=1024
+    -DSQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS=1
+    -DSQLITE_ENABLE_API_ARMOR=1
+    -DSQLITE_ENABLE_AUTO_PROFILE=1
+    -DSQLITE_ENABLE_FLOCKTIMEOUT=1
     -DSQLITE_ENABLE_FTS3=1
     -DSQLITE_ENABLE_FTS3_PARENTHESIS=1
-    -DSQLITE_DEFAULT_CACHE_SIZE=1000
+    -DSQLITE_ENABLE_FTS3_TOKENIZER=1
+    if:os=="Darwin" -DSQLITE_ENABLE_LOCKING_STYLE=1
+    -DSQLITE_ENABLE_PERSIST_WAL=1
+    -DSQLITE_ENABLE_PURGEABLE_PCACHE=1
+    -DSQLITE_ENABLE_RTREE=1
+    -DSQLITE_ENABLE_SNAPSHOT=1
+    # -DSQLITE_ENABLE_SQLLOG=1
+    -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT=1
     -DSQLITE_MAX_LENGTH=2147483645
     -DSQLITE_MAX_VARIABLE_NUMBER=500000
-    -DSQLITE_DEBUG=1
+    # -DSQLITE_MEMDEBUG=1
+    -DSQLITE_NO_SYNC=1
+    -DSQLITE_OMIT_AUTORESET=1
+    -DSQLITE_OMIT_LOAD_EXTENSION=1
     -DSQLITE_PREFER_PROXY_LOCKING=1
-    -DSQLITE_ENABLE_API_ARMOR=1
+    -DSQLITE_SERIES_CONSTRAINT_VERIFY=1
+    -DSQLITE_THREADSAFE=2
+    -DSQLITE_USE_URI=1
+    -DSQLITE_WRITE_WALFRAME_PREBUFFERED=1
+    -DUSE_GUARDED_FD=1
+    -DUSE_PREAD=1
     --enable-json1 --enable-fts5
   }
   "Extra-Robustness" {
@@ -248,6 +271,7 @@ array set ::Platforms [strip_comments {
     "Device-Two"              test
     "No-lookaside"            test
     "Devkit"                  test
+    "Apple"                   test
     "Sanitize"                {QUICKTEST_OMIT=func4.test,nan.test test}
     "Device-One"              fulltest
     "Default"                 "threadtest fulltest"
@@ -264,12 +288,12 @@ array set ::Platforms [strip_comments {
   Darwin-i386 {
     "Locking-Style"           "mptest test"
     "Have-Not"                test
-    "OS-X"                    "threadtest fulltest"
+    "Apple"                   "threadtest fulltest"
   }
   Darwin-x86_64 {
     "Locking-Style"           "mptest test"
     "Have-Not"                test
-    "OS-X"                    "threadtest fulltest"
+    "Apple"                   "threadtest fulltest"
   }
   "Windows NT-intel" {
     "Have-Not"                test
@@ -588,13 +612,23 @@ proc add_test_suite {listvar name testtarget config} {
   set opts ""
   set title ${name}($testtarget)
   set configOpts $::WITHTCL
+  set skip 0
 
   regsub -all {#[^\n]*\n} $config \n config
   foreach arg $config {
+    if {$skip} {
+      set skip 0
+      continue
+    }
     if {[regexp {^-[UD]} $arg]} {
       lappend opts $arg
     } elseif {[regexp {^[A-Z]+=} $arg]} {
       lappend testtarget $arg
+    } elseif {[regexp {^if:([a-z]+)(.*)} $arg all key tail]} {
+      # Arguments of the form 'if:os=="Linux"' will cause the subsequent
+      # argument to be skipped if the $tcl_platform(os) is not "Linux", for
+      # example...
+      set skip [expr !(\$::tcl_platform($key)$tail)]
     } elseif {[regexp {^--(enable|disable)-} $arg]} {
       if {$::MSVC} {
         if {$arg eq "--disable-amalgamation"} {
diff --git a/test/sqldiff1.test b/test/sqldiff1.test
index 3201fb3654..ea4e1f9993 100644
--- a/test/sqldiff1.test
+++ b/test/sqldiff1.test
@@ -14,16 +14,8 @@
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
 
-if {$tcl_platform(platform)=="windows"} {
-  set PROG "sqldiff.exe"
-} else {
-  set PROG "./sqldiff"
-}
-if {![file exe $PROG]} {
-  puts "sqldiff cannot run because $PROG is not available"
-  finish_test
-  return
-}
+set PROG [test_find_sqldiff]
+
 db close
 forcedelete test.db test2.db
 sqlite3 db test.db
diff --git a/test/tester.tcl b/test/tester.tcl
index 1c83e34c0d..a452883cc4 100644
--- a/test/tester.tcl
+++ b/test/tester.tcl
@@ -2136,24 +2136,41 @@ proc test_restore_config_pagecache {} {
   sqlite3 db test.db
 }
 
+proc test_find_binary {nm} {
+  if {$::tcl_platform(platform)=="windows"} {
+    set ret "$nm.exe"
+  } else {
+    set ret $nm
+  }
+  set ret [file normalize [file join $::cmdlinearg(TESTFIXTURE_HOME) $ret]]
+  if {![file executable $ret]} {
+    finish_test
+    return ""
+  }
+  return $ret
+}
+
 # Find the name of the 'shell' executable (e.g. "sqlite3.exe") to use for
 # the tests in shell[1-5].test. If no such executable can be found, invoke
 # [finish_test ; return] in the callers context.
 #
 proc test_find_cli {} {
-  if {$::tcl_platform(platform)=="windows"} {
-    set ret "sqlite3.exe"
-  } else {
-    set ret "sqlite3"
-  }
-  set ret [file normalize [file join $::cmdlinearg(TESTFIXTURE_HOME) $ret]]
-  if {![file executable $ret]} {
-    finish_test
-    return -code return
-  }
-  return $ret
+  set cli [test_find_binary sqlite3]
+  if {$prog==""} { return -code return }
+  return $prog
 }
 
+# Find the name of the 'sqldiff' executable (e.g. "sqlite3.exe") to use for
+# the tests in sqldiff tests. If no such executable can be found, invoke
+# [finish_test ; return] in the callers context.
+#
+proc test_find_sqldiff {} {
+  set prog [test_find_binary sqldiff]
+  if {$prog==""} { return -code return }
+  return $prog
+}
+
+
 # If the library is compiled with the SQLITE_DEFAULT_AUTOVACUUM macro set
 # to non-zero, then set the global variable $AUTOVACUUM to 1.
 set AUTOVACUUM $sqlite_options(default_autovacuum)
diff --git a/test/wal2.test b/test/wal2.test
index 4b9bbf315f..0b15b15461 100644
--- a/test/wal2.test
+++ b/test/wal2.test
@@ -1194,6 +1194,9 @@ foreach {tn sql reslist} {
   2 { PRAGMA checkpoint_fullfsync = 1 } {10 4 4 2 6 2}
   3 { PRAGMA checkpoint_fullfsync = 0 } {10 0 4 0 6 0}
 } {
+  ifcapable default_ckptfullfsync {
+    if {[string trim $sql]==""} continue
+  }
   faultsim_delete_and_reopen
 
   execsql {PRAGMA auto_vacuum = 0; PRAGMA synchronous = FULL;}
diff --git a/test/wal3.test b/test/wal3.test
index da3d318773..56f40ab539 100644
--- a/test/wal3.test
+++ b/test/wal3.test
@@ -220,6 +220,7 @@ foreach {tn syncmode synccount} {
     sqlite3 db test.db -vfs T
   
     execsql "PRAGMA synchronous = $syncmode"
+    execsql "PRAGMA checkpoint_fullfsync = 0"
     execsql { PRAGMA journal_mode = WAL }
     execsql { CREATE TABLE filler(a,b,c); }
 
diff --git a/tool/sqldiff.c b/tool/sqldiff.c
index ae01cd3c4d..d2423a73ba 100644
--- a/tool/sqldiff.c
+++ b/tool/sqldiff.c
@@ -1757,8 +1757,10 @@ int main(int argc, char **argv){
   char *zTab = 0;
   FILE *out = stdout;
   void (*xDiff)(const char*,FILE*) = diff_one_table;
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
   int nExt = 0;
   char **azExt = 0;
+#endif
   int useTransaction = 0;
   int neverUseTransaction = 0;
 
@@ -1841,8 +1843,8 @@ int main(int argc, char **argv){
       cmdlineError("error loading %s: %s", azExt[i], zErrMsg);
     }
   }
-#endif
   free(azExt);
+#endif
   zSql = sqlite3_mprintf("ATTACH %Q as aux;", zDb2);
   rc = sqlite3_exec(g.db, zSql, 0, 0, &zErrMsg);
   if( rc || zErrMsg ){