[Bug c++/63502] New: ICE in s390_add_constant when building with g++ in S390x Linux

[bill.klees at teamquest dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63502

            Bug ID: 63502
           Summary: ICE in s390_add_constant when building with g++ in
                    S390x Linux
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: bill.klees at teamquest dot com

Created attachment 33673
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33673&action=edit
ii file.

System
------
Linux 2.6.18-238.el5 #1 SMP Sun Dec 19 14:27:28 EST 2010 s390x s390x s390x
GNU/Linux

GCC
---
Using built-in specs.
COLLECT_GCC=/opt/gcc-4.9.1/bin/g++
COLLECT_LTO_WRAPPER=/opt/gcc-4.9.1/libexec/gcc/s390x-ibm-linux-gnu/4.9.1/lto-wrapper
Target: s390x-ibm-linux-gnu
Configured with: /home/bjk/gcc/gcc-4.9.1/./configure --prefix=/opt/gcc-4.9.1
--with-gmp=/opt/gmp-6.0.0 --with-mpfr=/opt/mpfr-3.1.2 --with-mpc=/opt/mpc-1.0.2
--enable-languages=c,c++ CC=/opt/gcc-4.7.4/bin/gcc CXX=/opt/gcc-4.7.4/bin/g++
--disable-bootstrap
Thread model: posix
gcc version 4.9.1 (GCC)

Source File
-----------
typedef   struct
   {
   char           system_name[100];
   char           system_model[100];
   char           original_system_name[100];
   int            physical_system;
   }   SB;

typedef   struct
   {
   int     work_at_sys;
   }   MWL, *LPMWL;

typedef  struct
   {
   MWL *sys_tier;
   int      shadow_wl;
   int      util_queue_num;
   }   CB;

typedef struct
   {
   int  current_system;
   CB  *clas;
   int number_systems;
   SB *systems;
   int          nr;
   } MO, *LPMO;


void ds(LPMO mptr, int selected_index)
{

for (int i = selected_index; i < mptr->number_systems; i++)
{
   mptr->systems[i] = mptr->systems[i+1];

   for (int r = 1; r <= mptr->nr; r++)
      mptr->clas[r].sys_tier[i] = mptr->clas[r].sys_tier[i+1];

   mptr->systems[i].physical_system -= 1;
}

if (mptr->current_system >= selected_index)
   {
   if (mptr->current_system == 0)
      mptr->current_system = 1;
   }
}


Build Command
-------------
/opt/gcc-4.9.1/bin/g++ -m31 -O1 -c -o m.o m.c


Result
------
m.c: In function âvoid ds(LPMO, int)â:
m.c:50:1: internal compiler error: in s390_add_constant, at
config/s390/s390.c:6403
 }
 ^
0x8080f0c9 s390_add_constant
        /home/bjk/gcc/gcc-4.9.1/./gcc/config/s390/s390.c:6403
0x8080f0c9 s390_add_constant
        /home/bjk/gcc/gcc-4.9.1/./gcc/config/s390/s390.c:6395
0x808232d1 s390_mainpool_start
        /home/bjk/gcc/gcc-4.9.1/./gcc/config/s390/s390.c:6699
0x808232d1 s390_reorg
        /home/bjk/gcc/gcc-4.9.1/./gcc/config/s390/s390.c:11350
0x8055e927 rest_of_handle_machine_reorg
        /home/bjk/gcc/gcc-4.9.1/./gcc/reorg.c:3936
0x8055e927 execute
        /home/bjk/gcc/gcc-4.9.1/./gcc/reorg.c:3966
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.


Notes
-----
Builds successfully using -O0, -O2, and -O3
Builds successfully with all optimizations when using -m64 instead of -m31