Improved extended comments of comparison operators when the SQLITE_STOREP2

flags is set on P5.  No changes to non-debug code.

FossilOrigin-Name: bbc1b016164ed0793e07302614384d52119463e0

manifest

@@ -1,5 +1,5 @@
-C In\ssqlite3FindInIndex(),\simprove\sinternal\scomments\sand\savoid\san\nunreachable\sbranch.
-D 2016-08-24T18:51:23.484
+C Improved\sextended\scomments\sof\scomparison\soperators\swhen\sthe\sSQLITE_STOREP2\nflags\sis\sset\son\sP5.\s\sNo\schanges\sto\snon-debug\scode.
+D 2016-08-24T21:24:04.787
 F Makefile.in cfd8fb987cd7a6af046daa87daa146d5aad0e088
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc d66d0395c38571aab3804f8db0fa20707ae4609a
@@ -450,11 +450,11 @@ F src/update.c 8179e699dbd45b92934fd02d3d8e3732e8da8802
 F src/utf.c 699001c79f28e48e9bcdf8a463da029ea660540c
 F src/util.c 810ec3f22e2d1b62e66c30fe3621ebdedd23584d
 F src/vacuum.c 913970b9d86dd6c2b8063ef1af421880f1464ec3
-F src/vdbe.c 766d363ef6520c671eef165098a24c0c6ef36d89
+F src/vdbe.c 68d56c11d5c5e704dde6d2d8748750a2f6352a09
 F src/vdbe.h 67bc551f7faf04c33493892e4b378aada823ed10
 F src/vdbeInt.h c59381049af5c7751a83456c39b80d1a6fde1f9d
 F src/vdbeapi.c a32d61b7dd05e6890d8fd44d2805f55e2f5ba9f3
-F src/vdbeaux.c a32d79aeaa88dc2b97c261172d952d395254a055
+F src/vdbeaux.c 83458783d241cfd6691141c8a105832ee50258e5
 F src/vdbeblob.c 3e82a797b60c3b9fed7b8de8c539ca7607874937
 F src/vdbemem.c e67dc6d8177fd1830efb5d15e17793408251a187
 F src/vdbesort.c 91fda3909326860382b0ca8aa251e609c6a9d62c
@@ -1520,7 +1520,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 6099c180db55396d6307538a5428ae5ef1b82d10
-R fa8e14e08c5acfaa4521c63ce095c576
+P 55945fc12f8157e32e6850e41575c0c6422d29e7
+R d8287dc165c2512db536a01f0275f112
 U drh
-Z 500a8a58193db1f42f4b49dd37f14aa8
+Z f51d93eb7238381398d31778d751851b

manifest.uuid

@@ -1 +1 @@
-55945fc12f8157e32e6850e41575c0c6422d29e7
+bbc1b016164ed0793e07302614384d52119463e0

src/vdbe.c

@@ -1881,7 +1881,7 @@ case OP_Cast: {                  /* in1 */
 #endif /* SQLITE_OMIT_CAST */
 
 /* Opcode: Eq P1 P2 P3 P4 P5
-** Synopsis: if r[P1]==r[P3] goto P2
+** Synopsis: IF r[P1]==r[P3]
 **
 ** Compare the values in register P1 and P3.  If reg(P3)==reg(P1) then
 ** jump to address P2.  Or if the SQLITE_STOREP2 flag is set in P5, then
@@ -1915,7 +1915,7 @@ case OP_Cast: {                  /* in1 */
 ** content of r[P2] is only set to 1 (true) if it was not previously NULL.
 */
 /* Opcode: Ne P1 P2 P3 P4 P5
-** Synopsis: if r[P1]!=r[P3] goto P2
+** Synopsis: IF r[P1]!=r[P3]
 **
 ** This works just like the Eq opcode except that the jump is taken if
 ** the operands in registers P1 and P3 are not equal.  See the Eq opcode for
@@ -1925,7 +1925,7 @@ case OP_Cast: {                  /* in1 */
 ** content of r[P2] is only set to 0 (false) if it was not previously NULL.
 */
 /* Opcode: Lt P1 P2 P3 P4 P5
-** Synopsis: if r[P1]<r[P3] goto P2
+** Synopsis: IF r[P1]<r[P3]
 **
 ** Compare the values in register P1 and P3.  If reg(P3)<reg(P1) then
 ** jump to address P2.  Or if the SQLITE_STOREP2 flag is set in P5 store
@@ -1954,21 +1954,21 @@ case OP_Cast: {                  /* in1 */
 ** strings and strings are considered less than blobs.
 */
 /* Opcode: Le P1 P2 P3 P4 P5
-** Synopsis: if r[P1]<=r[P3] goto P2
+** Synopsis: IF r[P1]<=r[P3]
 **
 ** This works just like the Lt opcode except that the jump is taken if
 ** the content of register P3 is less than or equal to the content of
 ** register P1.  See the Lt opcode for additional information.
 */
 /* Opcode: Gt P1 P2 P3 P4 P5
-** Synopsis: if r[P1]>r[P3] goto P2
+** Synopsis: IF r[P1]>r[P3]
 **
 ** This works just like the Lt opcode except that the jump is taken if
 ** the content of register P3 is greater than the content of
 ** register P1.  See the Lt opcode for additional information.
 */
 /* Opcode: Ge P1 P2 P3 P4 P5
-** Synopsis: if r[P1]>=r[P3] goto P2
+** Synopsis: IF r[P1]>=r[P3]
 **
 ** This works just like the Lt opcode except that the jump is taken if
 ** the content of register P3 is greater than or equal to the content of

src/vdbeaux.c

@@ -1094,12 +1094,21 @@ static int displayComment(
   const char *zSynopsis;
   int nOpName;
   int ii, jj;
+  char zAlt[50];
   zOpName = sqlite3OpcodeName(pOp->opcode);
   nOpName = sqlite3Strlen30(zOpName);
   if( zOpName[nOpName+1] ){
     int seenCom = 0;
     char c;
     zSynopsis = zOpName += nOpName + 1;
+    if( strncmp(zSynopsis,"IF ",3)==0 ){
+      if( pOp->p5 & SQLITE_STOREP2 ){
+        sqlite3_snprintf(sizeof(zAlt), zAlt, "r[P2] = (%s)", zSynopsis+3);
+      }else{
+        sqlite3_snprintf(sizeof(zAlt), zAlt, "if %s goto P2", zSynopsis+3);
+      }
+      zSynopsis = zAlt;
+    }
     for(ii=jj=0; jj<nTemp-1 && (c = zSynopsis[ii])!=0; ii++){
       if( c=='P' ){
         c = zSynopsis[++ii];