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* [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) @ 2005-09-20 17:45 amylaar at gcc dot gnu dot org 2005-09-20 17:48 ` [Bug c++/23984] " amylaar at gcc dot gnu dot org ` (6 more replies) 0 siblings, 7 replies; 12+ messages in thread From: amylaar at gcc dot gnu dot org @ 2005-09-20 17:45 UTC (permalink / raw) To: gcc-bugs cc1plus crashes for the testcase I'll attach later. There is a PLUS_EXPR, the second operand of which is NULL. setting a breakpoint cgraph_lower_function shows that the crash happens after cgraph_lower_function is called a second time; moreover, the by probing the different addresses where the PLUS_EXPR ended up during multiple runs, the offending PLUS_EXPR can be found at the start of the second cgraph_lower_function call: (gdb) p ((tree)0xb595ff9c)->common.code $7 = PLUS_EXPR (gdb) call debug_tree((tree)0xb595ff9c) <plus_expr 0xb595ff9c type <pointer_type 0xb595eb24 type <pointer_type 0xb593205c type <pointer_type 0xb5927f74 __vtbl_ptr_type> sizes-gimplified unsigned SI size <integer_cst 0xb58ab3f0 constant invariant 32> unit size <integer_cst 0xb58ab180 constant invariant 4> align 32 symtab 0 alias set -1 pointer_to_this <pointer_type 0xb595eb24>> unsigned SI size <integer_cst 0xb58ab3f0 32> unit size <integer_cst 0xb58ab180 4> align 32 symtab 0 alias set -1> readonly arg 0 <var_decl 0xb5961b00 __vtt_parm.7 type <pointer_type 0xb595eb24> used unsigned ignored SI file foo.ii line 30 size <integer_cst 0xb58ab3f0 32> unit size <integer_cst 0xb58ab180 4> align 32 context <function_decl 0xb5955580 __comp_ctor > abstract_origin <var_decl 0xb595a9f8 __vtt_parm.7> chain <var_decl 0xb5961b58 D.1949 type <pointer_type 0xb595eb24> used unsigned ignored SI file foo.ii line 30 size <integer_cst 0xb58ab3f0 32> unit size <integer_cst 0xb58ab180 4> align 32 context <function_decl 0xb5955580 __comp_ctor > abstract_origin <var_decl 0xb595aa50 D.1901> chain <var_decl 0xb5961bb0 D.1950>>>> Strangely enough, the this PLUS_EXPRESSION appears not to have been made by make_node_stat. -- Summary: second operand of PLUS_EXPR is NULL (in constructor) Product: gcc Version: 4.1.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: amylaar at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] second operand of PLUS_EXPR is NULL (in constructor) 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org @ 2005-09-20 17:48 ` amylaar at gcc dot gnu dot org 2005-09-20 17:53 ` [Bug c++/23984] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org ` (5 subsequent siblings) 6 siblings, 0 replies; 12+ messages in thread From: amylaar at gcc dot gnu dot org @ 2005-09-20 17:48 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From amylaar at gcc dot gnu dot org 2005-09-20 17:48 ------- Created an attachment (id=9781) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9781&action=view) test case This testcase triggers the bug with mainline gcc from 2005-09-19 18:00 UTC at optimization level -O3 for i686-pc-linux-gnu and sh-elf targets. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org 2005-09-20 17:48 ` [Bug c++/23984] " amylaar at gcc dot gnu dot org @ 2005-09-20 17:53 ` pinskia at gcc dot gnu dot org 2005-09-20 17:55 ` pinskia at gcc dot gnu dot org ` (4 subsequent siblings) 6 siblings, 0 replies; 12+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-20 17:53 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-20 17:53 ------- Confirmed, a regression from 3.4.0. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Known to fail| |4.0.0 4.1.0 Known to work| |3.4.0 Last reconfirmed|0000-00-00 00:00:00 |2005-09-20 17:53:10 date| | Summary|second operand of PLUS_EXPR |[4.0/4.1 Regression] second |is NULL (in constructor) |operand of PLUS_EXPR is NULL | |(in constructor) Target Milestone|--- |4.0.2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org 2005-09-20 17:48 ` [Bug c++/23984] " amylaar at gcc dot gnu dot org 2005-09-20 17:53 ` [Bug c++/23984] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org @ 2005-09-20 17:55 ` pinskia at gcc dot gnu dot org 2005-09-20 18:05 ` pinskia at gcc dot gnu dot org ` (3 subsequent siblings) 6 siblings, 0 replies; 12+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-20 17:55 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-20 17:55 ------- It is in .t02.original: ((int (*__vtbl_ptr_type) (void) * *) __vtt_parm + ) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org ` (2 preceding siblings ...) 2005-09-20 17:55 ` pinskia at gcc dot gnu dot org @ 2005-09-20 18:05 ` pinskia at gcc dot gnu dot org 2005-09-21 14:32 ` pinskia at gcc dot gnu dot org ` (2 subsequent siblings) 6 siblings, 0 replies; 12+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-20 18:05 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-20 18:04 ------- Here is a slightly reduced testcase: struct b { virtual int c (void) = 0; }; struct d:virtual b { d (void); int c (void) ; }; struct e { e (b *f); }; struct g : d, e { g () : e (this) {} }; g *a1 = new g (); -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org ` (3 preceding siblings ...) 2005-09-20 18:05 ` pinskia at gcc dot gnu dot org @ 2005-09-21 14:32 ` pinskia at gcc dot gnu dot org 2005-09-21 17:08 ` janis187 at us dot ibm dot com 2005-09-27 16:22 ` mmitchel at gcc dot gnu dot org 6 siblings, 0 replies; 12+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-21 14:32 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-21 14:32 ------- : Search converges between 2004-08-30-trunk (#529) and 2004-08-31-trunk (#530). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org ` (4 preceding siblings ...) 2005-09-21 14:32 ` pinskia at gcc dot gnu dot org @ 2005-09-21 17:08 ` janis187 at us dot ibm dot com 2005-09-27 16:22 ` mmitchel at gcc dot gnu dot org 6 siblings, 0 replies; 12+ messages in thread From: janis187 at us dot ibm dot com @ 2005-09-21 17:08 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From janis187 at us dot ibm dot com 2005-09-21 17:07 ------- Reghunt found this patch from nathan: http://gcc.gnu.org/ml/gcc-cvs/2004-08/msg01511.html -- What |Removed |Added ---------------------------------------------------------------------------- CC| |nathan at gcc dot gnu dot | |org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org ` (5 preceding siblings ...) 2005-09-21 17:08 ` janis187 at us dot ibm dot com @ 2005-09-27 16:22 ` mmitchel at gcc dot gnu dot org 6 siblings, 0 replies; 12+ messages in thread From: mmitchel at gcc dot gnu dot org @ 2005-09-27 16:22 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|4.0.2 |4.0.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
[parent not found: <bug-23984-5394@http.gcc.gnu.org/bugzilla/>]
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) [not found] <bug-23984-5394@http.gcc.gnu.org/bugzilla/> @ 2005-10-12 17:20 ` nathan at gcc dot gnu dot org 2005-10-14 8:39 ` cvs-commit at gcc dot gnu dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 12+ messages in thread From: nathan at gcc dot gnu dot org @ 2005-10-12 17:20 UTC (permalink / raw) To: gcc-bugs -- nathan at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |nathan at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED Last reconfirmed|2005-09-20 17:53:10 |2005-10-12 17:20:53 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) [not found] <bug-23984-5394@http.gcc.gnu.org/bugzilla/> 2005-10-12 17:20 ` nathan at gcc dot gnu dot org @ 2005-10-14 8:39 ` cvs-commit at gcc dot gnu dot org 2005-10-14 8:41 ` cvs-commit at gcc dot gnu dot org 2005-10-14 8:43 ` nathan at gcc dot gnu dot org 3 siblings, 0 replies; 12+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2005-10-14 8:39 UTC (permalink / raw) To: gcc-bugs ------- Comment #7 from cvs-commit at gcc dot gnu dot org 2005-10-14 08:39 ------- Subject: Bug 23984 CVSROOT: /cvs/gcc Module name: gcc Changes by: nathan@gcc.gnu.org 2005-10-14 08:38:59 Modified files: gcc/cp : ChangeLog class.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/init: ctor7.C Log message: cp: PR c++/23984 * class.c (build_base_path): The vtable is always the first thing in the vtt. testsuite: PR c++/23984 * g++.dg/init/ctor7.C: New. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4930&r2=1.4931 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/class.c.diff?cvsroot=gcc&r1=1.735&r2=1.736 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.6189&r2=1.6190 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/ctor7.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) [not found] <bug-23984-5394@http.gcc.gnu.org/bugzilla/> 2005-10-12 17:20 ` nathan at gcc dot gnu dot org 2005-10-14 8:39 ` cvs-commit at gcc dot gnu dot org @ 2005-10-14 8:41 ` cvs-commit at gcc dot gnu dot org 2005-10-14 8:43 ` nathan at gcc dot gnu dot org 3 siblings, 0 replies; 12+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2005-10-14 8:41 UTC (permalink / raw) To: gcc-bugs ------- Comment #8 from cvs-commit at gcc dot gnu dot org 2005-10-14 08:41 ------- Subject: Bug 23984 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-4_0-branch Changes by: nathan@gcc.gnu.org 2005-10-14 08:41:39 Modified files: gcc/cp : ChangeLog class.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/init: ctor7.C Log message: cp: PR c++/23984 * class.c (build_base_path): The vtable is always the first thing in the vtt. testsuite: PR c++/23984 * g++.dg/init/ctor7.C: New. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.4648.2.131&r2=1.4648.2.132 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/class.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.707.2.6&r2=1.707.2.7 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.454&r2=1.5084.2.455 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/ctor7.C.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c++/23984] [4.0/4.1 Regression] second operand of PLUS_EXPR is NULL (in constructor) [not found] <bug-23984-5394@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2005-10-14 8:41 ` cvs-commit at gcc dot gnu dot org @ 2005-10-14 8:43 ` nathan at gcc dot gnu dot org 3 siblings, 0 replies; 12+ messages in thread From: nathan at gcc dot gnu dot org @ 2005-10-14 8:43 UTC (permalink / raw) To: gcc-bugs ------- Comment #9 from nathan at gcc dot gnu dot org 2005-10-14 08:43 ------- fixed mainline & 4.0 2005-10-13 Nathan Sidwell <nathan@codesourcery.com> PR c++/23984 * class.c (build_base_path): The vtable is always the first thing in the vtt. -- nathan at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23984 ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2005-10-14 8:43 UTC | newest] Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2005-09-20 17:45 [Bug c++/23984] New: second operand of PLUS_EXPR is NULL (in constructor) amylaar at gcc dot gnu dot org 2005-09-20 17:48 ` [Bug c++/23984] " amylaar at gcc dot gnu dot org 2005-09-20 17:53 ` [Bug c++/23984] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org 2005-09-20 17:55 ` pinskia at gcc dot gnu dot org 2005-09-20 18:05 ` pinskia at gcc dot gnu dot org 2005-09-21 14:32 ` pinskia at gcc dot gnu dot org 2005-09-21 17:08 ` janis187 at us dot ibm dot com 2005-09-27 16:22 ` mmitchel at gcc dot gnu dot org [not found] <bug-23984-5394@http.gcc.gnu.org/bugzilla/> 2005-10-12 17:20 ` nathan at gcc dot gnu dot org 2005-10-14 8:39 ` cvs-commit at gcc dot gnu dot org 2005-10-14 8:41 ` cvs-commit at gcc dot gnu dot org 2005-10-14 8:43 ` nathan at gcc dot gnu dot org
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