Remove redundant code from sqlite3GetTempReg(). (CVS 5342)

FossilOrigin-Name: 212d05d38c8126f99c028c5ab021b219487fa01e

diff --git a/manifest b/manifest
index 5acd84b928ec7d03c802f67b5d2853b01785706e..2a8bdea2127957cd28aaf6a26a4aa60830496a0d 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Remove\sreferences\sto\stemporary\sregisters\sfrom\sthe\scompiler\scolumn-cache\swhen\ssuch\sregisters\sare\sreleased.\sFix\sfor\s#3201.\s(CVS\s5341)
-D 2008-07-04T09:15:11
+C Remove\sredundant\scode\sfrom\ssqlite3GetTempReg().\s(CVS\s5342)
+D 2008-07-04T09:41:39
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in 325dfac0a0dd1cb4d975f1ace6453157892e6042
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -103,7 +103,7 @@ F src/callback.c 3ba98ae46f60aa7c2c40eac7d18fe5ba9b706b83
 F src/complete.c cb14e06dbe79dee031031f0d9e686ff306afe07c
 F src/date.c e841168e5520bbbb2a1cbcdce7531d8b23017b4d
 F src/delete.c d3fc5987f2eb88f7b9549d58a5dfea079a83fe8b
-F src/expr.c 88737070caff1c85f3336c53c3dc7ca360b00da6
+F src/expr.c 8f2caa888af148ebf9cdb2cf7ffaae2a09767c48
 F src/fault.c 3638519d1e0b82bccfafcb9f5ff491918b28f8e1
 F src/func.c 1e7d9569570134ac0771a00382d9d4b41c4aa052
 F src/global.c 2304cfa3288763bd2fed10caf8c6fbaa2b383f4e
@@ -598,7 +598,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 1dbced29de5f59ba2ebf877edcadf171540374d1
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P a48e3d95f7a656285e959cef595cbe6d53428ad9
-R 15ada11bb606ce47c95f2a4cfe32122e
+P f099d6773a837dbe4ba85a8fda818e2d9466e743
+R 50f400c9772d85c2c24551ddc1a0402e
 U danielk1977
-Z 51ba53ad7e27ba8ada3bf3fd25b9e527
+Z 7224db38772dcdb44aa2d3e38e2dec82

diff --git a/manifest.uuid b/manifest.uuid
index 8fb49b0132990a5478c8fb3c766befb48eda9275..bdd923036fc53d057823f9fac677e13f2c6872d8 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-f099d6773a837dbe4ba85a8fda818e2d9466e743
\ No newline at end of file
+212d05d38c8126f99c028c5ab021b219487fa01e
\ No newline at end of file

diff --git a/src/expr.c b/src/expr.c
index 137a0d3a23469c46ed23c3573b4dcdc273b06f3b..b2aca6bf9febe77de2123eb923c0e83124c87a12 100644 (file)
--- a/src/expr.c
+++ b/src/expr.c
@@ -12,7 +12,7 @@
 ** This file contains routines used for analyzing expressions and
 ** for generating VDBE code that evaluates expressions in SQLite.
 **
-** $Id: expr.c,v 1.382 2008/07/04 09:15:11 danielk1977 Exp $
+** $Id: expr.c,v 1.383 2008/07/04 09:41:39 danielk1977 Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -3549,22 +3549,10 @@ void sqlite3ExprAnalyzeAggList(NameContext *pNC, ExprList *pList){
 ** Allocate or deallocate temporary use registers during code generation.
 */
 int sqlite3GetTempReg(Parse *pParse){
-  int i, r;
   if( pParse->nTempReg==0 ){
     return ++pParse->nMem;
   }
-  for(i=0; i<pParse->nTempReg; i++){
-    r = pParse->aTempReg[i];
-    if( usedAsColumnCache(pParse, r, r) ) continue;
-  }
-  if( i>=pParse->nTempReg ){
-    return ++pParse->nMem;
-  }
-  while( i<pParse->nTempReg-1 ){
-    pParse->aTempReg[i] = pParse->aTempReg[i+1];
-  }
-  pParse->nTempReg--;
-  return r;
+  return pParse->aTempReg[--pParse->nTempReg];
 }
 void sqlite3ReleaseTempReg(Parse *pParse, int iReg){
   if( iReg && pParse->nTempReg<ArraySize(pParse->aTempReg) ){