[Bug tree-optimization/19327] New: [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[Bug tree-optimization/19327] New: [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[danglin at gcc dot gnu dot org]

Executing on host: /mnt/gnu/gcc-3.3/objdir/gcc/xgcc -B/mnt/gnu/gcc-3.3/objdir/gc
c/ /mnt/gnu/gcc-3.3/gcc/gcc/testsuite/gcc.c-torture/execute/921215-1.c  -w  -O3
-g   -lm   -o /mnt/gnu/gcc-3.3/objdir/gcc/testsuite/921215-1.x4    (timeout = 30
0)
/usr/ccs/bin/ld: Unsatisfied symbols:
   r___1120 (first referenced in /var/tmp//ccQRLYPc.o) (data)
collect2: ld returned 1 exit status
compiler exited with status 1

This regression occurred at some time after Mon Jan 3 04:26:14 UTC.

-- 
           Summary: [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c
                    compilation,  -O3 -g
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: hppa2.0w-hp-hpux11.11
  GCC host triplet: hppa2.0w-hp-hpux11.11
GCC target triplet: hppa2.0w-hp-hpux11.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug middle-end/19327] [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
          Component|tree-optimization           |middle-end
           Keywords|                            |wrong-code
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug middle-end/19327] [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2005-01-09 16:00 -------
Reproducible on sparc32, sparc64, x86 and x86-64 with -gstabs:

RELOCATION RECORDS FOR [.stab]:
OFFSET   TYPE              VALUE
00000014 R_386_32          .text
000000e0 R_386_32          foo
00000104 R_386_32          .text
00000158 R_386_32          main
00000194 R_386_32          r.1135
000001b8 R_386_32          .text
000001dc R_386_32          .text


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
  GCC build triplet|hppa2.0w-hp-hpux11.11       |
   GCC host triplet|hppa2.0w-hp-hpux11.11       |
 GCC target triplet|hppa2.0w-hp-hpux11.11       |
   Last reconfirmed|0000-00-00 00:00:00         |2005-01-09 16:00:58
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug middle-end/19327] [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-10 04:32 -------
Hmm, the funny part is if I add -fdump-tree-all, it works which means we are setting the DECL_RTL 
twice and over writting it once or something like that.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.0.0
      Known to work|                            |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug middle-end/19327] [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-15 18:18 -------
*** Bug 19436 has been marked as a duplicate of this bug. ***

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug middle-end/19327] [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2005-01-17 09:37 -------
Investigating.


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] FAIL: gcc.c-torture/execute/921215-1.c compilation, -O3 -g

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2005-01-17 12:54 -------
It's

2005-01-03  Daniel Berlin  <dberlin@dberlin.org>

	Fix PR debug/17924
	Fix PR debug/19191
	* dwarf2out.c (block_ultimate_origin): Follow decl origin if origin
	is a decl.
	* gimple-low.c (mark_blocks_with_used_vars): New function.
	(mark_blocks_with_used_subblocks): Ditto.
	(mark_used_blocks): Ditto.
	(pass_mark_used_blocks): New pass.
	* tree-inline.c: Include debug.h.
	(expand_call_inline): Call outlining_inline_function here.
	* tree-optimize.c (init_tree_optimization_passes): Add
	pass_mark_used_blocks. 
	* tree-pass.h (pass_mark_used_blocks): New.
	* Makefile.in (tree-inline.o): Add debug.h dependency.

The DBX back-end is now asked to output debug info for the inlined instance of
the nested function r in

main()
{
#ifndef NO_TRAMPOLINES
  void p(void ((*f) (void ())))
    {
      void r()
	{
	  foo ();
	}

      f(r);
    }

  void q(void ((*f)()))
    {
      f();
    }

  p(q);
#endif
  exit(0);
}

which is created when p is inlined.  I think it doesn't support that.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |debug


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[dberlin at gcc dot gnu dot org]

------- Additional Comments From dberlin at gcc dot gnu dot org  2005-01-18 01:28 -------
This is close to what happens.
it doesn't actually do anything when we tell it to outline the inline function.
Then, when it processes the actually used block with that in it, it doesn't skip
it, even though it should because it was from an abstract block.
I'll fix this bug, but you guys should understand that you aren't going to get
sane debug info under stabs at -Ox anyway right now (and haven't since rouhgly
the tree-ssa merge), since it still assumes that blocks that aren't used don't
have used subblocks.



-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|ebotcazou at gcc dot gnu dot|dberlin at gcc dot gnu dot
                   |org                         |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-01-18 01:32 -------
Subject: Re:  [4.0 Regression] gcc.c-torture/execute/921215-1

> I'll fix this bug, but you guys should understand that you aren't going to
> get
> sane debug info under stabs at -Ox anyway right now (and haven't since
> rouhgly
> the tree-ssa merge), since it still assumes that blocks that aren't used
> don't
> have used subblocks.

Is this a PR?

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[dberlin at dberlin dot org]

------- Additional Comments From dberlin at gcc dot gnu dot org  2005-01-18 02:00 -------
Subject: Re:  [4.0 Regression] gcc.c-torture/execute/921215-1.c
 compilation  -O3 -g



On Mon, 18 Jan 2005, dave at hiauly1 dot hia dot nrc dot ca wrote:

>
> ------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2005-01-18 01:32 -------
> Subject: Re:  [4.0 Regression] gcc.c-torture/execute/921215-1
>
>> I'll fix this bug, but you guys should understand that you aren't going to
>> get
>> sane debug info under stabs at -Ox anyway right now (and haven't since
>> rouhgly
>> the tree-ssa merge), since it still assumes that blocks that aren't used
>> don't
>> have used subblocks.
>
> Is this a PR?

No.
Apparently, nobody noticed (IE it only happens at -O1+) :).
However, if you take the testcases from the prs that let to blocks 
being marked used, you should be able to come up with a testcase for 
this.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2005-01-18 05:23 -------
Patch here: http://gcc.gnu.org/ml/gcc-patches/2005-01/msg01081.html

Please never unassign a PR without getting in touch with the assignee first.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|dberlin at gcc dot gnu dot  |ebotcazou at gcc dot gnu dot
                   |org                         |org
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2005-02-07 19:04 -------
Daniel Berlin's patch is OK, please apply.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[dberlin at gcc dot gnu dot org]

------- Additional Comments From dberlin at gcc dot gnu dot org  2005-02-07 19:06 -------
Eric was the one who posted a patch a
http://gcc.gnu.org/ml/gcc-patches/2005-01/msg01081.html
:)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-02-07 19:33 -------
Subject: Bug 19327

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	ebotcazou@gcc.gnu.org	2005-02-07 19:32:59

Modified files:
	gcc            : ChangeLog dbxout.c 

Log message:
	PR debug/19327
	* dbxout.c (dbxout_symbol) <FUNCTION_DECL>: Skip inline instance
	of nested functions.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7412&r2=2.7413
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dbxout.c.diff?cvsroot=gcc&r1=1.218&r2=1.219



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327

[Bug debug/19327] [4.0 Regression] gcc.c-torture/execute/921215-1.c compilation -O3 -g

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2005-02-07 19:35 -------
> Eric was the one who posted a patch a
> http://gcc.gnu.org/ml/gcc-patches/2005-01/msg01081.html
> :)

I don't mind being confused with you. :-)

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19327