[PATCH] Fix -fdump-rtl-ira segfault

[Andreas Krebbel]

Hi,

-fdump-rtl-ira currently segfaults on s390 if not also a reload dump
is requested.  The problem is that the ira_dump_file variable during
reload still points to the ira dump file although the file has already
been closed by the pass manager already.

Ok for mainline?

Bye,

-Andreas-


2012-01-17  Andreas Krebbel  <andreas.kreb...@de.ibm.com>

        * ira.c (do_reload): Make sure ira_dump_file is re-set if no
        reload dump is requested.

---
 gcc/ira.c |    2 !!
 1 file changed, 2 modifications(!)

Index: gcc/ira.c
===================================================================
*** gcc/ira.c.orig
--- gcc/ira.c
*************** do_reload (void)
*** 3722,3728 ****
    basic_block bb;
    bool need_dce;
  
!   if (flag_ira_verbose < 10 && dump_file)
      ira_dump_file = dump_file;
  
    df_set_flags (DF_NO_INSN_RESCAN);
--- 3722,3728 ----
    basic_block bb;
    bool need_dce;
  
!   if (flag_ira_verbose < 10)
      ira_dump_file = dump_file;
  
    df_set_flags (DF_NO_INSN_RESCAN);