[Bug lto/50490] New: ICE when compiling libglib2.0 with LTO

[Bug lto/50490] New: ICE when compiling libglib2.0 with LTO

[matt at use dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50490

             Bug #: 50490
           Summary: ICE when compiling libglib2.0 with LTO
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: matt@use.net


Created attachment 25345
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25345
pre-processed source of the file that triggers the ICE

with trunk revision 178863:
"
gcc -O2 -flto -c mem-overflow.i

/home/matt/src/glib2.0-2.29.92/./glib/tests/mem-overflow.c:137:1: internal
compiler error: tree code 'optimization_node' is not supported in LTO streams
"

changing the -O2 to -O1 eliminates the ICE. valgrind shows nothing out of the
ordinary.

pre-processed file mentioned in the commandline above is attached.

[Bug lto/50490] ICE when compiling libglib2.0 with LTO, tree code 'optimization_node' is not supported in LTO streams

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50490

Volker Reichelt <reichelt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-11-19
                 CC|                            |reichelt at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #1 from Volker Reichelt <reichelt at gcc dot gnu.org> 2011-11-19 14:37:32 UTC ---
I ran into the same issue.
Here's a reduced testcase that triggers the ICE when compiled with "-flto":

=============================================
__attribute__((optimize(1))) void foo() {}
=============================================

bug.c:1:1: internal compiler error: tree code 'optimization_node' is not
supported in LTO streams
Please submit a full bug report, [etc.]

This only happens on trunk, before I get:

bug.c:1:1: sorry, unimplemented: gimple bytecode streams do not support the
optimization attribute

[Bug lto/50490] ICE when compiling libglib2.0 with LTO, tree code 'optimization_node' is not supported in LTO streams

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50490

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |rguenth at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-05 14:59:29 UTC ---
I have a patch.

[Bug lto/50490] ICE when compiling libglib2.0 with LTO, tree code 'optimization_node' is not supported in LTO streams

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50490

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-01-05 15:44:01 UTC ---
Author: rguenth
Date: Thu Jan  5 15:43:54 2012
New Revision: 182917

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182917
Log:
2012-01-05  Richard Guenther  <rguenther@suse.de>

    PR lto/50490
    * tree-streamer-out.c (write_ts_optimization): New function.
    (streamer_write_tree_body): Call it.
    * tree-streamer-in.c (lto_input_ts_optimization): New function.
    (streamer_read_tree_body): Call it.
    * lto-streamer-out.c (lto_is_streamable): Handle OPTIMIZATION_NODE.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lto-streamer-out.c
    trunk/gcc/tree-streamer-in.c
    trunk/gcc/tree-streamer-out.c

[Bug lto/50490] ICE when compiling libglib2.0 with LTO, tree code 'optimization_node' is not supported in LTO streams

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50490

Volker Reichelt <reichelt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.7.0

--- Comment #4 from Volker Reichelt <reichelt at gcc dot gnu.org> 2012-01-07 11:02:54 UTC ---
Fixed by Richard's patch.