From: drh <drh@noemail.net>
Date: Thu, 21 Nov 2013 20:48:42 +0000 (+0000)
Subject: Fix the code generator to honor turning off constant expression factoring.
X-Git-Tag: version-3.8.2~59
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d9f158e7b274e1d58661821868412a5c5ee7b53e;p=thirdparty%2Fsqlite.git

Fix the code generator to honor turning off constant expression factoring.

FossilOrigin-Name: 882622662dfadf49c65c7d80b7fd87533d079ce9
---

diff --git a/manifest b/manifest
index 45a9f70ccb..baab9046f7 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\sthe\s--timer\soption\sto\sthe\swordcount\stest\sprogram.
-D 2013-11-21T19:27:45.727
+C Fix\sthe\scode\sgenerator\sto\shonor\sturning\soff\sconstant\sexpression\sfactoring.
+D 2013-11-21T20:48:42.154
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 8a07bebafbfda0eb67728f4bd15a36201662d1a1
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -175,7 +175,7 @@ F src/complete.c dc1d136c0feee03c2f7550bafc0d29075e36deac
 F src/ctime.c ea4b7f3623a0fcb1146e7f245d7410033e86859c
 F src/date.c 593c744b2623971e45affd0bde347631bdfa4625
 F src/delete.c 909936019ccb8d0f4a10d0d10ad607c38ee62cbe
-F src/expr.c 3c629b4b208933c115f5652d2c6fcc877188c4fb
+F src/expr.c afc039ecfe2b990572f813aee0cbd734c167c955
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
 F src/fkey.c 2ab0f5384b70594468ef3ac5c7ed8ca24bfd17d5
 F src/func.c ef30d26ae4d79bbc7300c74e77fd117a0ba30235
@@ -224,7 +224,7 @@ F src/shell.c 849ee96c952d20e504d417e42a06acc5ca94ef17
 F src/sqlite.h.in a5dc058a909d9f14470bad9329d9e9303020ea4e
 F src/sqlite3.rc 11094cc6a157a028b301a9f06b3d03089ea37c3e
 F src/sqlite3ext.h 886f5a34de171002ad46fae8c36a7d8051c190fc
-F src/sqliteInt.h 8cd0bb5b2cd8430482460c2a302edd2619d17293
+F src/sqliteInt.h 5cf2c563e8909cd21378b47ace439826f1407120
 F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
 F src/status.c 7ac05a5c7017d0b9f0b4bcd701228b784f987158
 F src/table.c 2cd62736f845d82200acfa1287e33feb3c15d62e
@@ -1140,7 +1140,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
 F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
-P 23667f3ba09b7e839d76c42669dc9247a91262c8
-R 6f7d4c37e1e4a4d7b173a8698f60d4e6
+P a89fdf87553f01c150729c570796b5078a9b069d
+R 71de4796954de06b931dd50d526bd744
 U drh
-Z be6cc4796ccce786831080c9b4f10bd9
+Z 94a313bef91e05454ee1a8fb62156d74
diff --git a/manifest.uuid b/manifest.uuid
index a07e42dce4..441a088dc5 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-a89fdf87553f01c150729c570796b5078a9b069d
\ No newline at end of file
+882622662dfadf49c65c7d80b7fd87533d079ce9
\ No newline at end of file
diff --git a/src/expr.c b/src/expr.c
index 9d405343e9..2fb26b20fd 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -2991,7 +2991,7 @@ int sqlite3ExprCodeTarget(Parse *pParse, Expr *pExpr, int target){
 */
 void sqlite3ExprCodeAtInit(Parse *pParse, Expr *pExpr, int regDest){
   ExprList *p;
-  assert( pParse->cookieGoto>0 ); /* Only possible if cookie will be coded */
+  assert( ConstFactorOk(pParse) );
   p = pParse->pConstExpr;
   pExpr = sqlite3ExprDup(pParse->db, pExpr, 0);
   p = sqlite3ExprListAppend(pParse, p, pExpr);
@@ -3015,7 +3015,7 @@ void sqlite3ExprCodeAtInit(Parse *pParse, Expr *pExpr, int regDest){
 int sqlite3ExprCodeTemp(Parse *pParse, Expr *pExpr, int *pReg){
   int r2;
   pExpr = sqlite3ExprSkipCollate(pExpr);
-  if( pParse->cookieGoto>0
+  if( ConstFactorOk(pParse)
    && pExpr->op!=TK_REGISTER
    && sqlite3ExprIsConstantNotJoin(pExpr)
   ){
@@ -3395,7 +3395,7 @@ int sqlite3ExprCodeExprList(
   assert( target>0 );
   assert( pParse->pVdbe!=0 );  /* Never gets this far otherwise */
   n = pList->nExpr;
-  if( pParse->cookieGoto<=0 ) flags &= ~SQLITE_ECEL_FACTOR;
+  if( !ConstFactorOk(pParse) ) flags &= ~SQLITE_ECEL_FACTOR;
   for(pItem=pList->a, i=0; i<n; i++, pItem++){
     Expr *pExpr = pItem->pExpr;
     if( (flags & SQLITE_ECEL_FACTOR)!=0 && sqlite3ExprIsConstant(pExpr) ){
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 7c4c04337b..932b29c5de 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -1077,6 +1077,13 @@ struct sqlite3 {
 #define OptimizationEnabled(db, mask)   1
 #endif
 
+/*
+** Return true if it OK to factor constant expressions into the initialization
+** code. The argument is a Parse object for the code generator.
+*/
+#define ConstFactorOk(P) \
+  ((P)->cookieGoto>0 && OptimizationEnabled((P)->db,SQLITE_FactorOutConst))
+
 /*
 ** Possible values for the sqlite.magic field.
 ** The numbers are obtained at random and have no special meaning, other