[Bug middle-end/28636] New: [4.0/4.1 regression] Miscompiled loop

[schwab at suse dot de]

$ gcc -O2 input.c -o input
$ ./input
input: input.c:36: main: Assertion `s.buffer_position == s.buffer_end' failed.

The loop loses the increment of s.buffer_position.


-- 
           Summary: [4.0/4.1 regression] Miscompiled loop
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: schwab at suse dot de
GCC target triplet: ia64-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28636