[Bug c/94686] New: internal compiler error: in gimplify_expr

["haoxintu at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94686

            Bug ID: 94686
           Summary: internal compiler error: in gimplify_expr
           Product: gcc
           Version: 6.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: haoxintu at gmail dot com
  Target Milestone: ---

Hi, the test.c (reduced by C-Reduce)

#include <stdio.h>
int a = 0,b = 0;
int main(){
    int c = (int)(long)(b * 0 >= a & b * 0 >= a);
    return 0;
}

$gcc-6 test.c

then got the ICE error

test.c: In function ‘main’:
test.c:6:33: internal compiler error: in gimplify_expr, at gimplify.c:11192
  int c = (int)(long)(b * 0 >= a & b * 0 >= a);
                     ~~~~~~~~~~~~^~~~~~~~~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.


My GCC version is 

$gcc-6 --version

gcc-6 (Ubuntu 6.5.0-2ubuntu1~18.04) 6.5.0 20181026
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.