[Bug tree-optimization/80620] gcc produces wrong code with -O3

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80620

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-05-04
     Ever confirmed|0                           |1

--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Already missing from optimized tree dump:

--- func.c.227t.optimized-O2    2017-05-04 08:29:26.000000000 +0200
+++ func.c.227t.optimized-O3    2017-05-04 08:30:15.000000000 +0200
@@ -12,7 +12,6 @@
   int var_999.5_8;
   long int _9;
   long int _11;
-  long unsigned int _18;
   long unsigned int _29;

   <bb 2> [100.00%]:
@@ -50,8 +49,7 @@
   goto <bb 8>; [100.00%]

   <bb 7> [54.00%]:
-  _18 = _29 & 4081116982543369;
-  var_751 = _18;
+  var_751 = _29;

   <bb 8> [100.00%]:
   return;