[Bug c++/66267] New: internal compiler error: Segmentation fault

[Bug c++/66267] New: internal compiler error: Segmentation fault

[cjedic at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66267

            Bug ID: 66267
           Summary: internal compiler error: Segmentation fault
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: cjedic at gmail dot com
  Target Milestone: ---

I got the following segmentation fault from the following code:

..\calcGrades.cpp:32:3: internal compiler error: Segmentation fault
   }
   ^

#include <iostream> 
#include <string>
#include <fstream>
#include <iomanip>
using namespace std;

struct grades
         {
                 string firstName;
                 string lastName;
                 int    ID;
                 int    prgmGrades[10];
                 int    examGrades[3];
                 int    fexamGrade;
                 double finalGrade;
         }student;

 double calculatePercentGrade(const grades person)
  {
         int total = 0;
         double pAvg, eAvg, fAvg, final;
         for(int i = 0; i < 10; i++)
                 total += person.prgmGrades[i];
         pAvg = total/10;
         total = 0;
         for(int i = 0; i < 3; i++)
                         total += person.examGrades[i];
         eAvg = total/3;
         fAvg = person.fexamGrade;
         final = (pAvg * 0.3) + (eAvg * 0.45) + (fAvg * 0.25);
         return final;
  }
  char calculateLetterGrade(const double percent)
  {
         if(percent < 60)
                 return 'F';
         else if(percent < 70)
                 return 'D';
         else if(percent < 80)
                 return 'C';
         else if (percent < 90)
                 return 'B';
         else
                 return 'A';
  }

 int main()
 {


         ifstream fin("gradeBook.txt");
         char letterGrade;


         cout << "This program reads a data file of student grades, calculates
the \n"
                  << "final grade, and displays the student’s name and final
grade.\n\n\n";
         cout << "           Final Grades \n\n";
         while(!fin.eof())
         {
                 fin >> student.firstName >> student.lastName >> student.ID;
                 for(int i = 0; i < 0; i++)
                         fin >> student.prgmGrades[i];
                 for(int i = 0; i< 3; i++)
                         fin >> student.examGrades[i];
                 fin >> student.fexamGrade;
                 student.finalGrade = calculatePercentGrade(student);
                 letterGrade = calculateLetterGrade(student.finalGrade);
                 cout << student.firstName << ' ' << student.lastName  <<
"\t\t"
                          << letterGrade << '\n';
         }

        return 0;
 }
>From gcc-bugs-return-487158-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat May 23 22:29:31 2015
Return-Path: <gcc-bugs-return-487158-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 53816 invoked by alias); 23 May 2015 22:29:31 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 53750 invoked by uid 55); 23 May 2015 22:29:26 -0000
From: "nathan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/65936] [6 Regression] ICE: canonical types differ for identical types
Date: Sat, 23 May 2015 22:29:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 6.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: nathan at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution:
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: nathan at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 6.0
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields:
Message-ID: <bug-65936-4-0bKHecwVi7@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-65936-4@http.gcc.gnu.org/bugzilla/>
References: <bug-65936-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2015-05/txt/msg01998.txt.bz2
Content-length: 594

https://gcc.gnu.org/bugzilla/show_bug.cgi?ide936

--- Comment #3 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Author: nathan
Date: Sat May 23 22:28:54 2015
New Revision: 223613

URL: https://gcc.gnu.org/viewcvs?rev"3613&root=gcc&view=rev
Log:
        cp/
        PR c++/65936
        * pt.c (lookup_template_class_1): Copy may_alias attribute too.

        testsuite/
        PR c++/65936
        * g++.dg/template/pr65936.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/template/pr65936.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/66267] internal compiler error: Segmentation fault

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66267

Marc Glisse <glisse at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2015-05-23
     Ever confirmed|0                           |1

--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> ---
gcc-4.7 is not supported anymore (if you really want the 4.7 branch, 4.7.4 is
available that fixes many issues with 4.7.0). Can you reproduce on a more
recent compiler (at least 4.8.x, preferably 5.x)? What command line are you
using to compile the file? On what platform? By the way, it is better to attach
the file as copy-pasting tends to break long lines in inconvenient places.

[Bug c++/66267] internal compiler error: Segmentation fault

[cjedic at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66267

--- Comment #2 from cjedic at gmail dot com ---
Created attachment 35616
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35616&action=edit
calcGrades.cpp

[Bug c++/66267] internal compiler error: Segmentation fault

[cjedic at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66267

--- Comment #3 from cjedic at gmail dot com ---
Created attachment 35617
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35617&action=edit
gradeBook.txt

[Bug c++/66267] internal compiler error: Segmentation fault

[daniel.kruegler at googlemail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66267

Daniel Krügler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.kruegler@googlemail.
                   |                            |com

--- Comment #4 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
The code seems to compile successfully on gcc 4.7.3, 4.8.1, 4.8.2, 4.9.0,
4.9.1, 4.9.2, 5.1.0, and gcc HEAD 6.0.0 20150523 (experimental)
>From gcc-bugs-return-487190-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun May 24 16:52:30 2015
Return-Path: <gcc-bugs-return-487190-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 14912 invoked by alias); 24 May 2015 16:52:30 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 14894 invoked by uid 48); 24 May 2015 16:52:26 -0000
From: "martin.sjolund at liu dot se" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/66276] New: [5 regression] internal compiler error: in get_loop_body, at cfgloop.c:856
Date: Sun, 24 May 2015 16:52:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 5.1.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: critical
X-Bugzilla-Who: martin.sjolund at liu dot se
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution:
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_file_loc bug_status bug_severity priority component assigned_to reporter cc target_milestone cf_gcchost cf_gcctarget cf_gccbuild attachments.created
Message-ID: <bug-66276-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2015-05/txt/msg02030.txt.bz2
Content-length: 1657

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66276

            Bug ID: 66276
           Summary: [5 regression] internal compiler error: in
                    get_loop_body, at cfgloop.c:856
           Product: gcc
           Version: 5.1.0
               URL: https://github.com/OpenModelica/OMCompiler
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: martin.sjolund at liu dot se
                CC: martin.sjolund at liu dot se
  Target Milestone: ---
              Host: x86_64-unknown-linux-gnu
            Target: x86_64-unknown-linux-gnu
             Build: x86_64-unknown-linux-gnu

Created attachment 35618
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35618&action=edit
File triggering the bug (pre-processed and slightly trimmed down from the
original)

Configured with: ./configure --prefix=/opt/gcc-5.1.0
gcc version 5.1.0 (GCC) 

$ /opt/gcc-5.1.0/bin/gcc -O2 Matching.c
Matching.c: In function ‘omc_Matching_PR__FIFO__FAIRrelabel’:
Matching.c:3319:1: internal compiler error: in get_loop_body, at cfgloop.c:856
 }
 ^
0x6ba046 get_loop_body(loop const*)
        ../.././gcc/cfgloop.c:856
0x9358b0 predict_loops
        ../.././gcc/predict.c:1580
0x9358b0 tree_estimate_probability()
        ../.././gcc/predict.c:2371
0x936542 execute
        ../.././gcc/predict.c:3066

The original code compiles fine in gcc 4.4-4.9 and clang. It crashes in 5.1.0,
the svn 5 branch and svn trunk.

Does not seem to be related to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65517
>From gcc-bugs-return-487191-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun May 24 17:13:29 2015
Return-Path: <gcc-bugs-return-487191-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 36605 invoked by alias); 24 May 2015 17:13:29 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 36465 invoked by uid 48); 24 May 2015 17:13:26 -0000
From: "daniel.kruegler at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/66268] struct { volatile int x; } should not be trivially copyable
Date: Sun, 24 May 2015 17:13:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 5.1.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: daniel.kruegler at googlemail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution:
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: cc
Message-ID: <bug-66268-4-cADJLkpSXt@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-66268-4@http.gcc.gnu.org/bugzilla/>
References: <bug-66268-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2015-05/txt/msg02031.txt.bz2
Content-length: 1494

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66268

Daniel Krügler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.kruegler@googlemail.
                   |                            |com

--- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
It is correct that the rule change in regard to trivial copy/move constructors
had been introduced via CWG 496,

http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#496

But recently another new issue had been opened regarding this particular rule.
CWG 2094 (becomes visible in the next issue list publication). The essence of
the new issue are two items, quoted below:

a) "This change breaks the IA-64 ABI, so it has been requested that CWG
reconsider this aspect of the resolution."
b) "the resolution of issue 496 also changed 3.9 [basic.types] paragraph 9,
which makes volatile-qualified scalar types “trivial” but not “trivially
copyable.” It is not clear why there is a distinction made here; the only
actual use of “trivial type” in the Standard appears to be in the description
of qsort, which should probably use “trivially copyable.” (See also issue
1746.)"

This issue has not yet been discussed during the Lenexa meeting
>From gcc-bugs-return-487192-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun May 24 17:57:02 2015
Return-Path: <gcc-bugs-return-487192-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 67764 invoked by alias); 24 May 2015 17:57:02 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 67728 invoked by uid 48); 24 May 2015 17:56:58 -0000
From: "trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/66267] internal compiler error: Segmentation fault
Date: Sun, 24 May 2015 17:57:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 4.7.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: trippels at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: WONTFIX
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_status cc resolution
Message-ID: <bug-66267-4-OyBXzynR6E@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-66267-4@http.gcc.gnu.org/bugzilla/>
References: <bug-66267-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2015-05/txt/msg02032.txt.bz2
Content-length: 723

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66267

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
                 CC|                            |trippels at gcc dot gnu.org
         Resolution|---                         |WONTFIX

--- Comment #5 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Daniel Krügler from comment #4)
> The code seems to compile successfully on gcc 4.7.3, 4.8.1, 4.8.2, 4.9.0,
> 4.9.1, 4.9.2, 5.1.0, and gcc HEAD 6.0.0 20150523 (experimental)

Thanks. Closing.
>From gcc-bugs-return-487193-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun May 24 18:09:08 2015
Return-Path: <gcc-bugs-return-487193-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 103803 invoked by alias); 24 May 2015 18:09:08 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 103772 invoked by uid 48); 24 May 2015 18:09:05 -0000
From: "trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/66267] internal compiler error: Segmentation fault
Date: Sun, 24 May 2015 18:09:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 4.7.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: trippels at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: resolution
Message-ID: <bug-66267-4-qFNElTScei@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-66267-4@http.gcc.gnu.org/bugzilla/>
References: <bug-66267-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2015-05/txt/msg02033.txt.bz2
Content-length: 300

https://gcc.gnu.org/bugzilla/show_bug.cgi?idf267

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|WONTFIX                     |FIXED