[Bug middle-end/91021] New: internal compiler error: Segmentation fault

[gsocshubham at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91021

            Bug ID: 91021
           Summary: internal compiler error: Segmentation fault
           Product: gcc
           Version: 8.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gsocshubham at gmail dot com
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: x86_64-linux-gnu
             Build: x86_64-linux-gnu

Created attachment 46528
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46528&action=edit
Preprocessed code of ICE causing program "crash5.c"

------------------------COMPILER
CONFIGURATION----------------------------------

Using built-in specs.
COLLECT_GCC=/home/extended_csmith/gcc-8.3-release/build/gcc/xgcc
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-8.3.0/configure --enable-languages=c,c++ --enable-lto
--disable-bootstrap
Thread model: posix
gcc version 8.3.0 (GCC) 

----------------------COMMAND LINE USED FOR
COMPILATION-------------------------

extended_csmith@gcc10:~/ice-atomic$ ~/gcc-8.3-release/build/gcc/xgcc -B
~/gcc-8.3-release/build/gcc/ crash5.i -fgnu-tm -w -O1
during GIMPLE pass: tmmemopt
crash5.c: In function ‘main’:
crash5.c:827:5: internal compiler error: Segmentation fault
0xb0d4ef crash_signal
        ../../gcc-8.3.0/gcc/toplev.c:325
0x7fcce61c305f ???
       
/build/glibc-yWQXbR/glibc-2.24/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0xb1a3cd tm_memopt_compute_antic
        ../../gcc-8.3.0/gcc/trans-mem.c:3867
0xb1a3cd execute_tm_memopt
        ../../gcc-8.3.0/gcc/trans-mem.c:4062
0xb1a3cd execute
        ../../gcc-8.3.0/gcc/trans-mem.c:4100
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

-----------------------REDUCED CODE-------------------------------------------

struct a {
  signed b
} d;
c, e;
static f() {
  __transaction_atomic {
    for (; 0; c++)
      ;
  }
}
static g(h) {
  e = 4;
  for (; e; e--) {
    struct a *i;
    *i = d;
  }
}
j() {
  __transaction_atomic { g(f()); }
}