From: drh <drh@noemail.net>
Date: Wed, 9 Dec 2015 17:23:12 +0000 (+0000)
Subject: Further simplifications to the VDBE code generation logic that flow out
X-Git-Tag: version-3.10.0~47
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5ef09bf918bb26fbb900ec14850114b47f83cbfe;p=thirdparty%2Fsqlite.git

Further simplifications to the VDBE code generation logic that flow out
of the previous check-in.

FossilOrigin-Name: 6a5dfe85b519b920ce8c842057767a8793d92236
---

diff --git a/manifest b/manifest
index 677d1f72d0..cc0c4b013d 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Simplification\sof\sthe\sDROP\sTRIGGER\slogic\susing\ssqlite3NestedParse()\sinstead\nof\shand-coded\sVDBE\scode.\s\sThis\sis\sa\smanual\scherry-pick\sof\sthe\skey\schange\sfrom\ncheck-in\s[c80bbf14b365d].
-D 2015-12-09T16:26:38.759
+C Further\ssimplifications\sto\sthe\sVDBE\scode\sgeneration\slogic\sthat\sflow\sout\nof\sthe\sprevious\scheck-in.
+D 2015-12-09T17:23:12.345
 F Makefile.in 28bcd6149e050dff35d4dcfd97e890cd387a499d
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc e8fdca1cb89a1b58b5f4d3a130ea9a3d28cb314d
@@ -408,7 +408,7 @@ F src/vdbe.c 4d75375fa8bf911aa76ab8383d6f7eea0dec0fda
 F src/vdbe.h efb7a8c1459e31f3ea4377824c6a7e4cb5068637
 F src/vdbeInt.h 75c2e82ee3357e9210c06474f8d9bdf12c81105d
 F src/vdbeapi.c 020681b943e77766b32ae1cddf86d7831b7374ca
-F src/vdbeaux.c 8405f7441cb75c5d1816d1731a041d450e9ff2e9
+F src/vdbeaux.c e07b2c8d14064f2094d20d002a2a1082913bbd2a
 F src/vdbeblob.c fdc4a81605ae7a35ae94a55bd768b66d6be16f15
 F src/vdbemem.c fdd1578e47bea61390d472de53c565781d81e045
 F src/vdbesort.c a7ec02da4494c59dfd071126dd3726be5a11459d
@@ -1408,7 +1408,7 @@ F tool/vdbe_profile.tcl 246d0da094856d72d2c12efec03250d71639d19f
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 48bd54594752d5be3337f12c72f28d2080cb630b
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 901d0b8f3b72e96ffa8e9436993a12980f5ebd51
-R e560f751f53c5733305e8b0ee0bd6c81
+P 8021b4c8139ba56d6b1e2e26aeec4f9bf77f37c9
+R 9fa6094a1e8a72da130ce9bebe3afcb3
 U drh
-Z 957e158965f07497a4d00489add5865f
+Z e514ce3bd686c655a7118cedbf26535f
diff --git a/manifest.uuid b/manifest.uuid
index dc29bbac6d..01a18cf6eb 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-8021b4c8139ba56d6b1e2e26aeec4f9bf77f37c9
\ No newline at end of file
+6a5dfe85b519b920ce8c842057767a8793d92236
\ No newline at end of file
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index 26d162e93a..38cd492afa 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -349,7 +349,7 @@ int sqlite3VdbeMakeLabel(Vdbe *v){
   if( p->aLabel ){
     p->aLabel[i] = -1;
   }
-  return -1-i;
+  return ADDR(i);
 }
 
 /*
@@ -359,7 +359,7 @@ int sqlite3VdbeMakeLabel(Vdbe *v){
 */
 void sqlite3VdbeResolveLabel(Vdbe *v, int x){
   Parse *p = v->pParse;
-  int j = -1-x;
+  int j = ADDR(x);
   assert( v->magic==VDBE_MAGIC_INIT );
   assert( j<p->nLabel );
   assert( j>=0 );
@@ -586,8 +586,8 @@ static void resolveP2Values(Vdbe *p, int *pMaxFuncArgs){
 
     pOp->opflags = sqlite3OpcodeProperty[opcode];
     if( (pOp->opflags & OPFLG_JUMP)!=0 && pOp->p2<0 ){
-      assert( -1-pOp->p2<pParse->nLabel );
-      pOp->p2 = aLabel[-1-pOp->p2];
+      assert( ADDR(pOp->p2)<pParse->nLabel );
+      pOp->p2 = aLabel[ADDR(pOp->p2)];
     }
   }
   sqlite3DbFree(p->db, pParse->aLabel);
@@ -644,15 +644,10 @@ int sqlite3VdbeAddOpList(Vdbe *p, int nOp, VdbeOpList const *aOp, int iLineno){
   addr = p->nOp;
   pOut = &p->aOp[addr];
   for(i=0; i<nOp; i++, aOp++, pOut++){
-    int p2 = aOp->p2;
     pOut->opcode = aOp->opcode;
     pOut->p1 = aOp->p1;
-    if( p2<0 ){
-      assert( sqlite3OpcodeProperty[pOut->opcode] & OPFLG_JUMP );
-      pOut->p2 = addr + ADDR(p2);
-    }else{
-      pOut->p2 = p2;
-    }
+    pOut->p2 = aOp->p2;
+    assert( aOp->p2>=0 );
     pOut->p3 = aOp->p3;
     pOut->p4type = P4_NOTUSED;
     pOut->p4.p = 0;