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From: "d.g.gorbachev at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/59330] New: Crash in is_gimple_reg_type
Date: Thu, 28 Nov 2013 11:25:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59330

            Bug ID: 59330
           Summary: Crash in is_gimple_reg_type
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: d.g.gorbachev at gmail dot com

======= 8< =======
void free(void *p)
{
}

void *foo(void)
{
  return 0;
}

int main(void)
{
  void *p = foo();
  free(p);
  return 0;
}
======= >8 =======

$ gcc -O 1.c
1.c: In function 'main':
1.c:15:1: internal compiler error: Segmentation fault
 }
 ^
0x86dfff0 crash_signal
    ../../gcc-4.9/gcc/toplev.c:336
0x871992f is_gimple_reg_type
    ../../gcc-4.9/gcc/gimple-expr.h:74
0x871992f verify_gimple_call
    ../../gcc-4.9/gcc/tree-cfg.c:3190
0x871ac23 verify_gimple_stmt
    ../../gcc-4.9/gcc/tree-cfg.c:4306
0x8721a9a verify_gimple_in_cfg(function*)
    ../../gcc-4.9/gcc/tree-cfg.c:4765
0x86158d5 execute_function_todo
    ../../gcc-4.9/gcc/passes.c:1843
0x8615a5b do_per_function
    ../../gcc-4.9/gcc/passes.c:1573
0x8615bee execute_todo
    ../../gcc-4.9/gcc/passes.c:1877
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.