[Bug lto/59543] [4.9 Regression] lto1: fatal error: Cgraph edge statement index out of range

["trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59543

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 31527
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31527&action=edit
testcase

Here's a small testcase:

  % cat check.sh
g++ -g -fprofile-use -fPIC -flto -fno-exceptions -O2 -std=c++11 -c uniset.ii
g++ -fPIC -flto -fno-exceptions -O2 -std=c++11 -c unistr.ii
g++ -fPIC -flto -fno-exceptions -O2 -std=c++11 -c unorm.ii
gcc -O3 -c -fPIC unorm_it.i
g++ -flto -O2 uniset.o unistr.o unorm_it.o unorm.o
  % ./check.sh
In member function ‘extractBetween’:
lto1: fatal error: Cgraph edge statement index out of range 25 < 50
compilation terminated.
>From gcc-bugs-return-438640-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sat Dec 28 13:30:20 2013
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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/59612] iso_fortran_env segfaults with -fdump-fortran-original
Date: Sat, 28 Dec 2013 13:30:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idY612

janus at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-12-28
                 CC|                            |janus at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from janus at gcc dot gnu.org ---
Straightforward patch:

Index: gcc/fortran/dump-parse-tree.c
==================================================================--- gcc/fortran/dump-parse-tree.c    (revision 206176)
+++ gcc/fortran/dump-parse-tree.c    (working copy)
@@ -110,7 +110,8 @@ show_typespec (gfc_typespec *ts)
       break;

     case BT_CHARACTER:
-      show_expr (ts->u.cl->length);
+      if (ts->u.cl)
+    show_expr (ts->u.cl->length);
       fprintf(dumpfile, " %d", ts->kind);
       break;