[Bug tree-optimization/36926] New: [4.4 Regression] Revision 138092 breaks C++

[Bug tree-optimization/36926] New: [4.4 Regression] Revision 138092 breaks C++

[hjl dot tools at gmail dot com]

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While compiling 483.xalancbmk in SPEC CPU 2006, revision 138092
caused:

[hjl@gnu-27 build_base_o2.0000]$ /export/gnu/import/rrs/138092/usr/bin/g++ -c
-o NamespacesHandler.o -DSPEC_CPU -DNDEBUG  -DAPP_NO_THREADS
-DXALAN_INMEM_MSG_LOADER -I. -Ixercesc -Ixercesc/dom -Ixercesc/dom/impl
-Ixercesc/sax -Ixercesc/util/MsgLoaders/InMemory
-Ixercesc/util/Transcoders/Iconv -Ixalanc/include -DPROJ_XMLPARSER
-DPROJ_XMLUTIL -DPROJ_PARSERS -DPROJ_SAX4C -DPROJ_SAX2 -DPROJ_DOM
-DPROJ_VALIDATORS -DXML_USE_NATIVE_TRANSCODER -DXML_USE_INMEM_MESSAGELOADER
-DXML_USE_PTHREADS  -O2 -ffast-math   -DSPEC_CPU_LP64  -DSPEC_CPU_LINUX    
NamespacesHandler.cpp
NamespacesHandler.cpp: In function ‘bool
xalanc_1_8::addOrUpdateByPrefix(xalanc_1_8::StylesheetConstructionContext&,
VectorType&, const xalanc_1_8::XalanDOMString&, const
xalanc_1_8::XalanDOMString&) [with VectorType =
std::vector<xalanc_1_8::NamespacesHandler::Namespace,
std::allocator<xalanc_1_8::NamespacesHandler::Namespace> >]’:
NamespacesHandler.cpp:910: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[hjl@gnu-27 build_base_o2.0000]$


-- 
           Summary: [4.4 Regression] Revision 138092 breaks C++
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl dot tools at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2008-07-24 23:50 -------
please attach the preprocessed source and maybe even the backtrace.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
            Summary|[4.4 Regression] Revision   |[4.4 Regression] Revision
                   |138092 breaks C++           |138092 breaks building of
                   |                            |xalancbmk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[hjl dot tools at gmail dot com]

------- Comment #2 from hjl dot tools at gmail dot com  2008-07-24 23:55 -------
Program received signal SIGSEGV, Segmentation fault.
ipa_get_stmt_member_ptr_load_param (stmt=0x0) at ../../src/gcc/ipa-prop.c:611
611       if (TREE_CODE (stmt) != GIMPLE_MODIFY_STMT)
(gdb) bt
#0  ipa_get_stmt_member_ptr_load_param (stmt=0x0)
    at ../../src/gcc/ipa-prop.c:611
#1  0x00000000007fbf57 in ipa_analyze_params_uses (node=<value optimized out>)
    at ../../src/gcc/ipa-prop.c:749
#2  0x00000000007fa8ed in inline_generate_summary ()
    at ../../src/gcc/ipa-inline.c:1665
#3  0x000000000061f1e8 in execute_ipa_pass_list (pass=0xe5c280)
    at ../../src/gcc/passes.c:1184
#4  0x00000000007f5c57 in cgraph_optimize () at ../../src/gcc/cgraphunit.c:1356
#5  0x000000000044bf0a in cp_write_global_declarations ()
    at ../../src/gcc/cp/decl2.c:3546
#6  0x00000000006930dd in toplev_main (argc=<value optimized out>, 
    argv=<value optimized out>) at ../../src/gcc/toplev.c:971
#7  0x0000002a95b013fb in __libc_start_main () from /lib64/tls/libc.so.6
#8  0x000000000040432a in _start ()
(gdb) 

Joey, can you find a small testcase?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[hjl dot tools at gmail dot com]

------- Comment #4 from hjl dot tools at gmail dot com  2008-07-25 00:12 -------
(gdb) call debug_tree (def)
 <phi_node 0x2a9bb03a00 asm_written visited
    result <ssa_name 0x2a9bb2b960
        type <pointer_type 0x2a9ac8a3c0 type <method_type 0x2a9a30b0c0>
            unsigned DI
            size <integer_cst 0x2a98b80b40 constant 64>
            unit size <integer_cst 0x2a98b80b70 constant 8>
            align 64 symtab 0 alias set -1 canonical type 0x2a9ac8a3c0>
        var <var_decl 0x2a9bb2d320 theMemberFunction$__pfn> def_stmt <phi_node
0x2a9bb03a00>
        version 46>
    arg <addr_expr 0x2a9b767540 type <pointer_type 0x2a9ac8a3c0>
        constant
        arg 0 <function_decl 0x2a9a308300 getPrefix type <method_type
0x2a9a30b0c0>
            addressable used nothrow public static weak inline no-static-chain
decl_5 QI defer-output file NamespacesHandler.hpp line 92 col 15
            align 16 context <record_type 0x2a9a307840 Namespace> initial
<block 0x2a9a481a80> arguments <parm_decl 0x2a9a305bd0 this> result
<result_decl 0x2a9a503b80 D.24947>
            pending-inline-info 0x2a9a503e80
            saved-insns 0x2a9a501510 chain <function_decl 0x2a9a308400
setPrefix>>>
    arg <ssa_name 0x2a9bb2b660 type <pointer_type 0x2a9ac8a3c0>
        var <var_decl 0x2a9bb2d320 theMemberFunction$__pfn> def_stmt
<gimple_modify_stmt 0x2a9bb28510>
        version 42>>
(gdb) 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[hjl dot tools at gmail dot com]

------- Comment #3 from hjl dot tools at gmail dot com  2008-07-25 00:11 -------
(gdb) f 1
#1  0x00000000008e3619 in ipa_analyze_call_uses (info=0x2a9bed6998, 
    call=0x2a9bb25690, stmt=0x2a9bb285a0) at ../../src/gcc/ipa-prop.c:749
749       if ((rec = ipa_get_stmt_member_ptr_load_param (d1)))
(gdb) call debug_tree (n1)
 <addr_expr 0x2a9b767540
    type <pointer_type 0x2a9ac8a3c0
        type <method_type 0x2a9a30b0c0 type <reference_type 0x2a99eea3c0>
            type_6 QI
            size <integer_cst 0x2a98b807b0 constant 8>
            unit size <integer_cst 0x2a98b807e0 constant 1>
            align 8 symtab 0 alias set 0 canonical type 0x2a9a30b0c0 method
basetype <record_type 0x2a9a307840 Namespace>
            arg-types <tree_list 0x2a9a304840 value <pointer_type 0x2a9a30b180>
                chain <tree_list 0x2a98ba2960 value <void_type 0x2a98ba39c0
void>>>
            pointer_to_this <pointer_type 0x2a9ac8a3c0>>
        unsigned DI
        size <integer_cst 0x2a98b80b40 constant 64>
        unit size <integer_cst 0x2a98b80b70 constant 8>
        align 64 symtab 0 alias set -1 canonical type 0x2a9ac8a3c0>
    constant
    arg 0 <function_decl 0x2a9a308300 getPrefix type <method_type 0x2a9a30b0c0>
        addressable used nothrow public static weak inline no-static-chain
decl_5 QI defer-output file NamespacesHandler.hpp line 92 col 15
        align 16 context <record_type 0x2a9a307840 Namespace> initial <block
0x2a9a481a80>
        arguments <parm_decl 0x2a9a305bd0 this type <pointer_type 0x2a9a30b240>
            readonly used unsigned DI file NamespacesHandler.hpp line 92 col 15
size <integer_cst 0x2a98b80b40 64> unit size <integer_cst 0x2a98b80b70 8>
            align 64 context <function_decl 0x2a9a308300 getPrefix> initial
<pointer_type 0x2a9a30b240> arg-type <pointer_type 0x2a9a30b240>>
        result <result_decl 0x2a9a503b80 D.24947 type <reference_type
0x2a99eea3c0>
            readonly unsigned ignored DI file NamespacesHandler.hpp line 93 col
3 size <integer_cst 0x2a98b80b40 64> unit size <integer_cst 0x2a98b80b70 8>
            align 64 context <function_decl 0x2a9a308300 getPrefix>>
        pending-inline-info 0x2a9a503e80
        saved-insns 0x2a9a501510
        chain <function_decl 0x2a9a308400 setPrefix type <method_type
0x2a9a30b3c0>
            nothrow public static external weak inline no-static-chain decl_5
QI defer-output file NamespacesHandler.hpp line 105 col 42
            align 16 context <record_type 0x2a9a307840 Namespace> initial
<error_mark 0x2a98b8bec0> arguments <parm_decl 0x2a9a305cf0 this> result
<result_decl 0x2a9a503f00 D.24949>
            pending-inline-info 0x2a9a509300 chain <function_decl 0x2a9a308500
getURI>>>>
(gdb) p d1
$1 = (tree) 0x0
(gdb) 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[hjl dot tools at gmail dot com]

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------- Comment #5 from hjl dot tools at gmail dot com  2008-07-25 01:05 -------
Created an attachment (id=15958)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15958&action=view)
A testcase

[hjl@gnu-27 XSLT]$ /export/gnu/import/rrs/138092/usr/bin/g++ -O2 -S x.ii
x.cc: In member function ‘void
xalanc_1_10::NamespacesHandler::processExcludeResultPrefixes(xalanc_1_10::StylesheetConstructionContext&,
const xalanc_1_10::XalanDOMChar*, const
xalanc_1_10::XalanDeque<xalanc_1_10::XalanDeque<xalanc_1_10::NameSpace,
xalanc_1_10::ConstructWithMemoryManagerTraits<xalanc_1_10::NameSpace> >,
xalanc_1_10::ConstructWithMemoryManagerTraits<xalanc_1_10::XalanDeque<xalanc_1_10::NameSpace,
xalanc_1_10::ConstructWithMemoryManagerTraits<xalanc_1_10::NameSpace> > > >&)’:
x.cc:60: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[hjl@gnu-27 XSLT]$ 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[jamborm at gcc dot gnu dot org]

------- Comment #6 from jamborm at gcc dot gnu dot org  2008-07-25 08:57 -------
I will look at it straight away.


-- 

jamborm at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jamborm at gcc dot gnu dot
                   |dot org                     |org
             Status|WAITING                     |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2008-07-25 08:57:42
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[jamborm at gcc dot gnu dot org]

------- Comment #7 from jamborm at gcc dot gnu dot org  2008-07-25 14:09 -------
OK, I think I have it.  It was a stupid mistake on my side.  The
following patch seems to fix it:

Subject: Fix PR 36926

2008-07-25  Martin Jambor  <mjambor@suse.cz>

        PR 36926
        * ipa-prop.c (ipa_analyze_call_uses): Call
        ipa_is_ssa_with_stmt_def instead of SSA_NAME_IS_DEFAULT_DEF.


Index: iinln/gcc/ipa-prop.c
===================================================================
--- iinln.orig/gcc/ipa-prop.c
+++ iinln/gcc/ipa-prop.c
@@ -741,7 +741,7 @@ ipa_analyze_call_uses (struct ipa_node_p
      pointer that is a parameter to this function. */
   n1 = PHI_ARG_DEF (def, 0);
   n2 = PHI_ARG_DEF (def, 1);
-  if (SSA_NAME_IS_DEFAULT_DEF (n1) || SSA_NAME_IS_DEFAULT_DEF (n2))
+  if (!ipa_is_ssa_with_stmt_def (n1) || !ipa_is_ssa_with_stmt_def (n2))
     return;
   d1 = SSA_NAME_DEF_STMT (n1);
   d2 = SSA_NAME_DEF_STMT (n2);


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[jamborm at gcc dot gnu dot org]

------- Comment #8 from jamborm at gcc dot gnu dot org  2008-07-25 16:45 -------
Patch submitted: http://gcc.gnu.org/ml/gcc-patches/2008-07/msg02014.html

Tuples version: http://gcc.gnu.org/ml/gcc-patches/2008-07/msg02017.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[hjl dot tools at gmail dot com]

------- Comment #9 from hjl dot tools at gmail dot com  2008-07-25 17:11 -------
(In reply to comment #7)
> 
> 2008-07-25  Martin Jambor  <mjambor@suse.cz>
> 
>         PR 36926
>         * ipa-prop.c (ipa_analyze_call_uses): Call
>         ipa_is_ssa_with_stmt_def instead of SSA_NAME_IS_DEFAULT_DEF.
> 

Yes, it fixed 483.xalancbmk.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[hjl at gcc dot gnu dot org]

------- Comment #10 from hjl at gcc dot gnu dot org  2008-07-25 20:31 -------
Subject: Bug 36926

Author: hjl
Date: Fri Jul 25 20:30:35 2008
New Revision: 138148

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138148
Log:
2008-07-25  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/36926
        * ipa-prop.c (ipa_analyze_call_uses): Call
        ipa_is_ssa_with_stmt_def instead of SSA_NAME_IS_DEFAULT_DEF.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-prop.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[hjl dot tools at gmail dot com]

------- Comment #11 from hjl dot tools at gmail dot com  2008-07-27 18:56 -------
Fixed.


-- 

hjl dot tools at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926

[Bug tree-optimization/36926] [4.4 Regression] Revision 138092 breaks building of xalancbmk

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36926