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

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

[haoxintu at gmail dot com]

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.

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

[jakub at gcc dot gnu.org]

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

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 6 is not supported for 1.5 years already.
For GCC 7 this has been fixed by the PR71311
r7-1170-g4618c453205f1812b32967312a845a66a1194495 fix.

*** This bug has been marked as a duplicate of bug 71311 ***

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

[cvs-commit at gcc dot gnu.org]

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

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:187bdbd5645ff5271bee436e0c854a11b69e9570

commit r10-7843-g187bdbd5645ff5271bee436e0c854a11b69e9570
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Apr 21 12:47:46 2020 +0200

    testsuite: Add testcase for already fixed PR [PR94686]

    This has been fixed by the PR71311 r7-1170-g4618c453205f18
    change.

    2020-04-21  Jakub Jelinek  <jakub@redhat.com>

            PR c/94686
            * gcc.c-torture/compile/pr94686.c: New test.