[Bug lto/65588] New: lto1: internal compiler error: Segmentation fault

[Bug lto/65588] New: lto1: internal compiler error: Segmentation fault

[nheghathivhistha at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

            Bug ID: 65588
           Summary: lto1: internal compiler error: Segmentation fault
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nheghathivhistha at gmail dot com

Created attachment 35152
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35152&action=edit
Preprocessed source file gzipped

Gcc trunk revision 221643 ICEs during Lisp package compilation.

LANG=C LC_ALL=C gcc -flto=4 -fuse-linker-plugin -O2 -g -pipe -march=core2
-mtune=core2 -Wa,--noexecstack -W -Wswitch -Wcomment -Wpointer-arith -Wimplicit
-Wreturn-type -Wmissing-declarations -Wno-sign-compare -Wno-format-nonliteral
-O -falign-functions=4 -pthread -DENABLE_UNICODE -DMULTITHREAD -DPOSIX_THREADS
-DDYNAMIC_FFI -I. -Wl,-flto -fuse-linker-plugin -Wl,--as-needed -Wl,-O2
-Wl,--sort-common -Wl,--hash-style=gnu -O2 -g -pipe -march=core2 -mtune=core2 
spvw.i  -r -nostdlib
In file included from ../src/spvw.d:927:0:
../src/spvw_garcol.d: In function 'fill_varobject_heap_holes':
../src/spvw_garcol.d:1764:15: warning: comparison is always false due to
limited range of data type [-Wtype-limits]
       if (len > arraysize_limit_1) {
               ^
../src/spvw.d: In function 'main_actions':
../src/spvw.d:3487:36: warning: variable 'fileptr' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
       var const argv_compile_file_t* fileptr = &p->argv_compile_files[0];
                                    ^
../src/spvw.d:3488:15: warning: variable 'count' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
       var uintL count = p->argv_compile_filecount;
               ^
../src/spvw.d:3469:13: warning: variable 'count' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
     var uintL count = p->argv_init_filecount;
             ^
lto1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
make: *** [/tmp/ccA7URan.ltrans16.ltrans.o] Error 1
make: *** Waiting for unfinished jobs....
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/lib/gcc/x86_64-pc-linux-gnu/4.10.0-pre20150323/../../../../x86_64-pc-linux-gnu/bin/ld:
lto-wrapper failed
collect2: error: ld returned 1 exit status

gcc -flto=4 -fuse-linker-plugin -O2 -g -pipe -march=core2 -mtune=core2
-Wa,--noexecstack -W -Wswitch -Wcomment -Wpointer-arith -Wimplicit
-Wreturn-type -Wmissing-declarations -Wno-sign-compare -Wno-format-nonliteral
-O -falign-functions=4 -pthread -DENABLE_UNICODE -DMULTITHREAD -DPOSIX_THREADS
-DDYNAMIC_FFI -I. -Wl,-flto -fuse-linker-plugin -Wl,--as-needed -Wl,-O2
-Wl,--sort-common -Wl,--hash-style=gnu -O2 -g -pipe -march=core2 -mtune=core2 
spvw.o spvwtabf.o spvwtabs.o spvwtabo.o eval.o control.o encoding.o pathname.o
stream.o socket.o io.o funarg.o array.o hashtabl.o list.o package.o record.o
weak.o sequence.o charstrg.o debug.o error.o misc.o time.o predtype.o symbol.o
lisparit.o i18n.o foreign.o unixaux.o zthread.o built.o modules.o
/usr/lib64/libreadline.so -lncurses -ldl /usr/lib64/libavcall.so
/usr/lib64/libcallback.so  -L/usr/lib64 -lsigsegv -L/usr/lib64 -lc libgnu_cl.a
-o lisp.run
../src/eval.d: In function 'funcall_iclosure':
../src/eval.d:2463:45: warning: argument 'closure' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
 local maygc Values funcall_iclosure (object closure, gcv_object_t*
args_pointer,
                                             ^
../src/eval.d:2464:44: warning: argument 'argcount' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
                                      uintC argcount)
                                            ^
../src/eval.d: In function 'eval_no_hooks':
../src/eval.d:2994:43: warning: argument 'form' might be clobbered by 'longjmp'
or 'vfork' [-Wclobbered]
 global maygc Values eval_no_hooks (object form) {
                                           ^
../src/eval.d: In function 'eval':
../src/eval.d:2939:34: warning: argument 'form' might be clobbered by 'longjmp'
or 'vfork' [-Wclobbered]
 modexp maygc Values eval (object form)
                                  ^
../src/record.d: In function 'update_instance':
../src/record.d:1409:62: warning: argument 'obj' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
 global maygc object update_instance (object user_obj, object obj) {
                                                              ^
../src/stream.d: In function 'handle_isset':
../src/stream.d:14457:45: warning: 'ret' may be used uninitialized in this
function [-Wmaybe-uninitialized]
   if (!nullp(status_cons)) Cdr(status_cons) = ret;
                                             ^
../src/stream.d:14421:21: note: 'ret' was declared here
   var object sock, ret;
                     ^
../src/io.d: In function 'C_bit_vector_reader':
../src/io.d:3271:10: warning: 'ch' may be used uninitialized in this function
[-Wmaybe-uninitialized]
       if (chareq(ch,ascii('0'))) {
          ^
../src/io.d:3266:16: note: 'ch' was declared here
     var chart ch;               /* last character ('0' or '1') */
                ^
../src/io.d: In function 'C_vector_reader':
../src/io.d:3328:15: warning: 'el' may be used uninitialized in this function
[-Wmaybe-uninitialized]
       *vptr++ = el;
               ^
../src/io.d:3322:17: note: 'el' was declared here
     var object el;              /* last Element */
                 ^
../src/eval.d: In function 'invoke_handlers':
../src/eval.d:713:23: warning: variable 'other_ranges' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
   var stack_range_t* other_ranges = inactive_handlers;
                       ^
../src/eval.d:716:22: warning: variable 'FRAME' might be clobbered by 'longjmp'
or 'vfork' [-Wclobbered]
   var gcv_object_t* FRAME = STACK;
                      ^
../src/eval.d:729:20: warning: variable 'i' might be clobbered by 'longjmp' or
'vfork' [-Wclobbered]
         var uintL i = 0;
                    ^
../src/control.d: In function 'C_tagbody':
../src/control.d:1596:15: warning: variable 'body' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
   var object body = popSTACK();
               ^
../src/stream.d: In function 'close_ochannel':
../src/stream.d:5853:41: warning: argument 'stream' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
 local maygc void close_ochannel (object stream, uintB abort) {
                                         ^
../src/zthread.d: In function 'C_thread_join':
../src/zthread.d:557:13: warning: variable 'timeout' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
   var bool timeout=false;
             ^
../src/spvw.d: In function 'main_actions':
../src/spvw.d:3487:39: warning: variable 'fileptr' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
       var const argv_compile_file_t* fileptr = &p->argv_compile_files[0];
                                       ^
../src/spvw.d:3488:18: warning: variable 'count' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
       var uintL count = p->argv_compile_filecount;
                  ^
../src/spvw.d:3469:16: warning: variable 'count' might be clobbered by
'longjmp' or 'vfork' [-Wclobbered]
     var uintL count = p->argv_init_filecount;
                ^
At top level:
lto1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
make[1]: ***
[/var/tmp/portage/dev-lisp/clisp-2.49-r8/temp/ccg1ub9O.ltrans19.ltrans.o] Error
1
make[1]: *** Waiting for unfinished jobs....
../src/array.d: In function 'C_make_array':
../src/array.d:4713:17: warning: 'fillpointer' may be used uninitialized in
this function [-Wmaybe-uninitialized]
       *dimptr++ = fillpointer;
                 ^
../src/array.d:4613:14: note: 'fillpointer' was declared here
   var uintL fillpointer;
              ^
../src/array.d: In function 'C_adjust_array':
../src/array.d:5045:19: warning: 'fillpointer' may be used uninitialized in
this function [-Wmaybe-uninitialized]
           *dimptr = fillpointer;
                   ^
../src/array.d:4935:14: note: 'fillpointer' was declared here
   var uintL fillpointer;
              ^
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/lib/gcc/x86_64-pc-linux-gnu/4.10.0-pre20150323/../../../../x86_64-pc-linux-gnu/bin/ld:
lto-wrapper failed
collect2: error: ld returned 1 exit status
Makefile:1729: recipe for target 'lisp.run' failed
make: *** [lisp.run] Error 1
 * ERROR: dev-lisp/clisp-2.49-r8::gentoo failed (compile phase):
 *   emake failed

[Bug lto/65588] lto1: internal compiler error: Segmentation fault

[nheghathivhistha at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

--- Comment #1 from David Kredba <nheghathivhistha at gmail dot com> ---
Created attachment 35154
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35154&action=edit
A little c-reduced preprocessed file

[Bug lto/65588] lto1: internal compiler error: Segmentation fault

[nheghathivhistha at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

David Kredba <nheghathivhistha at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #35154|0                           |1
        is obsolete|                            |

--- Comment #2 from David Kredba <nheghathivhistha at gmail dot com> ---
Created attachment 35155
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35155&action=edit
A little more c-reduced preprocessed file

[Bug ipa/65588] [5 Regression] lto1: internal compiler error: Segmentation fault

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-linux
           Priority|P3                          |P1
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |lto
   Last reconfirmed|                            |2015-03-27
          Component|lto                         |ipa
                 CC|                            |hubicka at gcc dot gnu.org
     Ever confirmed|0                           |1
            Summary|lto1: internal compiler     |[5 Regression] lto1:
                   |error: Segmentation fault   |internal compiler error:
                   |                            |Segmentation fault
   Target Milestone|---                         |5.0

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed with -O -flto.

Program received signal SIGSEGV, Segmentation fault.
0x0000000000fe8b47 in assemble_undefined_decl (decl=0x7ffff68d7990)
    at /space/rguenther/src/svn/trunk2/gcc/varasm.c:2079
2079      const char *name = XSTR (XEXP (DECL_RTL (decl), 0), 0);
(gdb) bt
#0  0x0000000000fe8b47 in assemble_undefined_decl (decl=0x7ffff68d7990)
    at /space/rguenther/src/svn/trunk2/gcc/varasm.c:2079
#1  0x0000000000fff91f in symbol_table::output_variables (this=0x7ffff68d0000)
    at /space/rguenther/src/svn/trunk2/gcc/varpool.c:741
#2  0x00000000007b0e34 in symbol_table::compile (this=0x7ffff68d0000)
    at /space/rguenther/src/svn/trunk2/gcc/cgraphunit.c:2368
#3  0x00000000006ed92d in lto_main ()
    at /space/rguenther/src/svn/trunk2/gcc/lto/lto.c:3483
#4  0x0000000000c9acbb in compile_file ()
    at /space/rguenther/src/svn/trunk2/gcc/toplev.c:594
#5  0x0000000000c9d07e in do_compile ()
    at /space/rguenther/src/svn/trunk2/gcc/toplev.c:2076
#6  0x0000000000c9d2aa in toplev::main (this=0x7fffffffdba0, argc=25, 
    argv=0x20e4320) at /space/rguenther/src/svn/trunk2/gcc/toplev.c:2174
#7  0x000000000161b127 in main (argc=25, argv=0x7fffffffdca8)
    at /space/rguenther/src/svn/trunk2/gcc/main.c:39
(gdb) p debug_tree (decl)
 <var_decl 0x7ffff68d7990 __SP
    type <integer_type 0x7ffff68d0690 int public SI
        size <integer_cst 0x7ffff68ccdf8 constant 32>
        unit size <integer_cst 0x7ffff68cce10 constant 4>
        align 32 symtab 0 alias set -1 canonical type 0x7ffff68d0690 precision
32 min <integer_cst 0x7ffff68ccdb0 -2147483648> max <integer_cst 0x7ffff68ccdc8
2147483647>
        pointer_to_this <pointer_type 0x7ffff68e77e0>>
    used public external regdecl common SI file t.c line 25 col 14 size
<integer_cst 0x7ffff68ccdf8 32> unit size <integer_cst 0x7ffff68cce10 4>
    align 32 context <translation_unit_decl 0x7ffff7ff81e0 D.3949>
    (reg/v:SI 7 sp [ __SP ])>
$1 = void

for some odd reason we call assemble_undefined_decl on a DECL_HARD_REGISTER
(for some odd reason such decl is in the varpool at all..)

Honza?

This is

register __SP __asm__ ( "%rsp" );

not sure what the underlying issue is.  Works with 4.9.

[Bug ipa/65588] [5 Regression] lto1: internal compiler error: Segmentation fault

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |hubicka at gcc dot gnu.org

--- Comment #4 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I will take a look.

[Bug ipa/65588] [5 Regression] lto1: internal compiler error: Segmentation fault

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |trippels at gcc dot gnu.org

--- Comment #7 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
markus@x4 testcase % cat spvw.i
register int a __asm__("%rsp");
int main () { a = 0; }

markus@x4 testcase % gcc -w -flto -flto-partition=max -O2 spvw.i -r -nostdlib
lto1: internal compiler error: Segmentation fault
0xa2a36f crash_signal
        ../../gcc/gcc/toplev.c:383
0xcd5bec assemble_undefined_decl(tree_node*)
        ../../gcc/gcc/varasm.c:2080
0xcdd580 symbol_table::output_variables()
        ../../gcc/gcc/varpool.c:741
0x68d9d0 symbol_table::compile()
        ../../gcc/gcc/cgraphunit.c:2368
0x6029e4 lto_main()
        ../../gcc/gcc/lto/lto.c:3496
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.
lto-wrapper: fatal error: /var/tmp/gcc_test/usr/local/bin/gcc returned 1 exit
status
compilation terminated.
/usr/bin/ld: fatal error: lto-wrapper failed
collect2: error: ld returned 1 exit status

[Bug ipa/65588] [5 Regression] lto1: internal compiler error: Segmentation fault

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

--- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Fri Mar 27 21:35:51 2015
New Revision: 221745

URL: https://gcc.gnu.org/viewcvs?rev=221745&root=gcc&view=rev
Log:

    PR ipa/65588
    * symtab.c (symtab_node::get_partitioning_class): Register vars
    are duplicated.
    * varpool.c (symbol_table::output_variables) Do not assemble unefined
    decls for non-symbols.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/symtab.c
    trunk/gcc/varpool.c

[Bug ipa/65588] [5 Regression] lto1: internal compiler error: Segmentation fault

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #9 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Fixed.

[Bug ipa/65588] [5 Regression] lto1: internal compiler error: Segmentation fault

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65588

--- Comment #10 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Sun Mar 29 15:41:55 2015
New Revision: 221764

URL: https://gcc.gnu.org/viewcvs?rev=221764&root=gcc&view=rev
Log:

    PR ipa/65588
    * gcc.target/i386/pr65588.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr65588.c
Modified:
    trunk/gcc/testsuite/ChangeLog