[backport] Address integer overflow in sqlite3MulInt64.

third_party/sqlite/src/test/expr.test

 # 2001 September 15
 #
 # The author disclaims copyright to this source code.  In place of
 # a legal notice, here is a blessing:
 #
 #    May you do good and not evil.
 #    May you find forgiveness for yourself and forgive others.
 #    May you share freely, never taking more than you give.
 #
 #***********************************************************************
@@ skipping 290 matching lines @@
       {i1=-4294967296, i2=2147483647} {i1*i2}     -9223372032559808512
   test_realnum_expr expr-1.254\
       {i1=4294967296, i2=-2147483648} {i1*i2}     -9223372036854775808
   test_realnum_expr expr-1.255\
       {i1=4294967296, i2=-2147483647} {i1*i2}     -9223372032559808512
   test_realnum_expr expr-1.256\
       {i1=-4294967296, i2=-2147483648} {i1*i2}    9.22337203685478e+18
   test_realnum_expr expr-1.257\
       {i1=-4294967296, i2=-2147483647} {i1*i2}    9223372032559808512
 
+  test_realnum_expr expr-1.260\
+      {i1=3037000500, i2=3037000500} {i1*i2}      9.22337203700025e+18
+  test_realnum_expr expr-1.261\
+      {i1=3037000500, i2=-3037000500} {i1*i2}     -9.22337203700025e+18
+  test_realnum_expr expr-1.262\
+      {i1=-3037000500, i2=3037000500} {i1*i2}     -9.22337203700025e+18
+  test_realnum_expr expr-1.263\
+      {i1=-3037000500, i2=-3037000500} {i1*i2}    9.22337203700025e+18
+
+  test_realnum_expr expr-1.264\
+      {i1=3037000500, i2=3037000499} {i1*i2}      9223372033963249500
+  test_realnum_expr expr-1.265\
+      {i1=3037000500, i2=-3037000499} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.266\
+      {i1=-3037000500, i2=3037000499} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.267\
+      {i1=-3037000500, i2=-3037000499} {i1*i2}    9223372033963249500
+
+  test_realnum_expr expr-1.268\
+      {i1=3037000499, i2=3037000500} {i1*i2}      9223372033963249500
+  test_realnum_expr expr-1.269\
+      {i1=3037000499, i2=-3037000500} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.270\
+      {i1=-3037000499, i2=3037000500} {i1*i2}     -9223372033963249500
+  test_realnum_expr expr-1.271\
+      {i1=-3037000499, i2=-3037000500} {i1*i2}    9223372033963249500
+
 }}
 
 ifcapable floatingpoint {
   test_expr expr-2.1 {r1=1.23, r2=2.34} {r1+r2} 3.57
   test_expr expr-2.2 {r1=1.23, r2=2.34} {r1-r2} -1.11
   test_expr expr-2.3 {r1=1.23, r2=2.34} {r1*r2} 2.8782
 }
 set tcl_precision 15
 ifcapable floatingpoint {
   test_expr expr-2.4 {r1=1.23, r2=2.34} {r1/r2} 0.525641025641026
@@ skipping 625 matching lines @@
 do_execsql_test expr-13.8 {
   SELECT "" <= '';
 } {1}
 do_execsql_test expr-13.9 {
   SELECT '' <= "";
 } {1}
 
 
 
 finish_test