[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562

--- Comment #4 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-10-11 15:12:40 UTC ---
A proposed patch submitted to the mailing list:
http://gcc.gnu.org/ml/gcc-patches/2010-10/msg00921.html

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562

--- Comment #5 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-10-11 20:23:40 UTC ---
Author: jamborm
Date: Mon Oct 11 20:23:04 2010
New Revision: 165330

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165330
Log:
2010-10-11  Martin Jambor  <mjambor@suse.cz>

    PR c++/45562
    * cp/cp-tree.h (current_class_ref): Check that cp_function_chain is
    non-NULL.
    * cp/call.c (build_cxx_call): Likewise.


Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/cp-tree.h

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562

Martin Jambor <jamborm at gcc dot gnu.org> changed:

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

--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-10-11 20:25:58 UTC ---
Fixed.

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[jamborm at gcc dot gnu dot org]

------- Comment #3 from jamborm at gcc dot gnu dot org  2010-09-21 17:08 -------
This is the full backtrace:

#0  0x081e945d in cp_build_unary_op (code=ADDR_EXPR, xarg=0xb76d0dac,
noconvert=0, complain=3)
    at /home/mjambor/gcc/icln/gcc/cp/typeck.c:5091
#1  0x080d10b3 in build_this (obj=0xb76d7898) at
/home/mjambor/gcc/icln/gcc/cp/call.c:2738
#2  0x080dfaf5 in build_new_method_call (instance=0xb76d0dac, fns=0xb76d0dc8,
args=0xbfffe8d0, 
    conversion_path=0xb776e000, flags=3, fn_p=0x0, complain=0)
    at /home/mjambor/gcc/icln/gcc/cp/call.c:6482
#3  0x0812f34c in tsubst_copy_and_build (t=0xb76d1774, args=0xb775de88,
complain=0, in_decl=0x0, 
    function_p=0 '\000', integral_constant_expression_p=0 '\000')
    at /home/mjambor/gcc/icln/gcc/cp/pt.c:12587
#4  0x0813a8b6 in tsubst_expr (t=0xb76d1774, args=<value optimized out>, 
    complain=<value optimized out>, in_decl=0x0, 
    integral_constant_expression_p=<value optimized out>) at
/home/mjambor/gcc/icln/gcc/cp/pt.c:12069
#5  0x08132dbc in tsubst (t=0xb7763f60, args=0xb775de88, complain=0,
in_decl=0x0)
    at /home/mjambor/gcc/icln/gcc/cp/pt.c:10697
#6  0x081a7e24 in dump_template_bindings (typenames=<value optimized out>, 
    args=<value optimized out>, parms=<value optimized out>)
    at /home/mjambor/gcc/icln/gcc/cp/error.c:315
#7  dump_function_decl (typenames=<value optimized out>, args=<value optimized
out>, 
    parms=<value optimized out>) at /home/mjambor/gcc/icln/gcc/cp/error.c:1346
#8  0x081a95f8 in decl_as_string (decl=0xb7766a80, flags=4)
    at /home/mjambor/gcc/icln/gcc/cp/error.c:2372
#9  0x08233b8b in cxx_printable_name_internal (decl=0xb7766a80, v=0,
translate=152 '\230')
    at /home/mjambor/gcc/icln/gcc/cp/tree.c:1445
#10 0x0843aba9 in current_function_name () at
/home/mjambor/gcc/icln/gcc/function.c:5635
#11 0x08668ed0 in dump_enumerated_decls (file=0x8d8c670, flags=1048576)
    at /home/mjambor/gcc/icln/gcc/tree-ssa-live.c:1268
#12 0x0860387c in execute_cleanup_cfg_post_optimizing ()
    at /home/mjambor/gcc/icln/gcc/tree-optimize.c:214
#13 0x084fe5e9 in execute_one_pass (pass=0x8c42820) at
/home/mjambor/gcc/icln/gcc/passes.c:1573
#14 0x084fe89d in execute_pass_list (pass=0x8c42820) at
/home/mjambor/gcc/icln/gcc/passes.c:1628
#15 0x08603a8a in tree_rest_of_compilation (fndecl=0xb7766a80)
    at /home/mjambor/gcc/icln/gcc/tree-optimize.c:452
#16 0x087afdbc in cgraph_expand_function (node=<value optimized out>)
    at /home/mjambor/gcc/icln/gcc/cgraphunit.c:1477
#17 0x087b3051 in cgraph_expand_all_functions () at
/home/mjambor/gcc/icln/gcc/cgraphunit.c:1556
#18 cgraph_optimize () at /home/mjambor/gcc/icln/gcc/cgraphunit.c:1812
#19 0x087b368a in cgraph_finalize_compilation_unit () at
/home/mjambor/gcc/icln/gcc/cgraphunit.c:1020
#20 0x0819bebb in cp_write_global_declarations () at
/home/mjambor/gcc/icln/gcc/cp/decl2.c:3928
#21 0x085a2894 in compile_file () at /home/mjambor/gcc/icln/gcc/toplev.c:967
#22 do_compile () at /home/mjambor/gcc/icln/gcc/toplev.c:2394
#23 0x085a3062 in toplev_main (argc=21, argv=0xbfffef64) at
/home/mjambor/gcc/icln/gcc/toplev.c:2435
#24 0x082ca5eb in main (argc=21, argv=0xbfffef64) at
/home/mjambor/gcc/icln/gcc/main.c:36


It seems that some template bindings get built when we try to dump the
current function for the compare-debug dump (required to get the ICE),
which is so late in the compilation process that cp front-end cannot
handle it somehow.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[hjl dot tools at gmail dot com]

------- Comment #2 from hjl dot tools at gmail dot com  2010-09-21 14:54 -------
It is caused by revision 162911:

http://gcc.gnu.org/ml/gcc-cvs/2010-08/msg00122.html


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jamborm at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-09-21 14:54:00
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562

[Bug c++/45562] [4.6 Regression] ICE: SIGSEGV in cp_build_unary_op (typeck.c:5083) with -std=gnu++0x -fipa-cp-clone -fcompare-debug

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2010-09-06 19:38 -------
Created an attachment (id=21715)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21715&action=view)
reduced testcase (from
libstdc++-v3/testsuite/21_strings/basic_string/range_access.cc)

$ gcc -std=gnu++0x -O -fno-inline -fipa-cp -fipa-cp-clone -fcompare-debug
pr45562.C


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45562