[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pinskia@physics.uc.edu]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929


pinskia@physics.uc.edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4                         |3.3.1

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[dhazeghi at yahoo dot com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929


dhazeghi at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
           Priority|P3                          |P2
   Last reconfirmed|2003-06-17 20:47:22         |2003-07-10 00:48:21
               date|                            |


------- Additional Comments From dhazeghi at yahoo dot com  2003-07-10 00:48 -------
This bug is still present on mainline. Has there been any progress made 
since this bug was assigned in April? Thanks.

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929



------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-13 19:50 -------
>From Phil's regression hunter: Search converges between 2002-03-24-trunk (#11) and 
2002-03-31-trunk (#12).

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pme at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929



------- Additional Comments From pme at gcc dot gnu dot org  2003-07-14 03:02 -------
I filled in the 7-day gap here and re-ran the search:

: Search converges between 2002-03-30-trunk (#43) and 2002-03-31-trunk (#44).

input.c: In function `bar':
input.c:12: unable to find a register to spill in class `GENERAL_REGS'
input.c:12: this is the insn:
(insn 25 37 26 (set (mem/s:DI (plus:SI (subreg:SI (reg/v:DI 60) 0)
                (subreg:SI (reg/v:DI 61) 4)) [0 S8 A32])
        (reg:DI 63)) 83 {*movdi_2} (insn_list 21 (insn_list 24 (nil)))
    (expr_list:REG_DEAD (reg:DI 63)
        (expr_list:REG_DEAD (reg/v:DI 60)
            (expr_list:REG_DEAD (reg/v:DI 61)
                (nil)))))
input.c:12: Internal compiler error in spill_failure, at reload1.c:1908
Please submit a full bug report,
with preprocessed source if appropriate.
See  for instructions.

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[janis187 at us dot ibm dot com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929



------- Additional Comments From janis187 at us dot ibm dot com  2003-07-15 18:02 -------
The latest search for the introduction or exposure of the bug points to the
patch that was identified in comment #2.

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[mmitchel at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929


mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.1                       |3.3.2

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[mmitchel at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929



------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-07-23 23:01 -------
Jan has indicated that he will not fix this bug this week, so I have postponed
it until GCC 3.3.2.  At least the failure mode is a crash, and not bad code
generation.

It's very disappointing that this regression -- which was filed in March -- was
not fixed by July.

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[jh at suse dot cz]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929



------- Additional Comments From jh at suse dot cz  2003-07-24 00:19 -------
Subject: Re:  [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

> PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929
> 
> 
> 
> ------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-07-23 23:01 -------
> Jan has indicated that he will not fix this bug this week, so I have postponed
> it until GCC 3.3.2.  At least the failure mode is a crash, and not bad code
> generation.
I didn't mean this particular bug.  I am on the vacation till Friday,
but I am trying to solve the 3.3 issues today.
> 
> It's very disappointing that this regression -- which was filed in March -- was
> not fixed by July.
Quick searching reminded me that except for the rejected patch to work
around at i386 side, there is patch waiting for this particular bug at
http://gcc.gnu.org/ml/gcc-patches/2003-05/msg02107.html
it has been in use at SuSE's Gcc for some time now and seems to be safe.
I verified that the patch still apply and fixes the testcase,
bootstrap/regress is in the progress.
Sorry for the delay.

Honza
> 
> 
> 
> ------- You are receiving this mail because: -------
> You are on the CC list for the bug, or are watching someone who is.

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[jh at suse dot cz]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929



------- Additional Comments From jh at suse dot cz  2003-07-24 00:21 -------
Subject: Re:  [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

> PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929
> 
> 
> 
> ------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-07-23 23:01 -------
> Jan has indicated that he will not fix this bug this week, so I have postponed
Also note that I was speaking about the HP-UX bug that is not a
regression and I spent several hours trying to hunt it down already.  I
don't have that much time right now, but will at the flight home.
Just to clarify my schedule :)

Honza
> it until GCC 3.3.2.  At least the failure mode is a crash, and not bad code
> generation.
> 
> It's very disappointing that this regression -- which was filed in March -- was
> not fixed by July.
> 
> 
> 
> ------- You are receiving this mail because: -------
> You are on the CC list for the bug, or are watching someone who is.

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[cvs-commit at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-08-27 16:41 -------
Subject: Bug 9929

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	hammer-3_3-branch
Changes by:	hubicka@gcc.gnu.org	2003-08-27 16:41:02

Modified files:
	gcc            : ChangeLog.hammer Makefile.in flow.c gccbug.in 
	                 reload.c 
	gcc/config/i386: i386.c i386.h 

Log message:
	Backport from SuSE local:
	Tue Mar 18 19:06:18 CET 2003  Jan Hubicka  <jh@suse.cz>
	* i386.c (use_fast_prologue_epilogue): Remove.
	(machine_function): New fields use_fast_prologue_epilogue;
	use_fast_prologue_epilogue_initialized.
	(ix86_frame): New field save_regs-using_mov;
	(ix86_compute_frame_layout):  Decide on fast prologues;
	allocate saved registers in red zone.
	(ix86_expand_epilogue, ix86_expand_prolgoues): Obey new parameters.
	Mon Mar  3 12:01:16 CET 2003  Jan Hubicka  <jh@suse.cz>
	* i386.c (classify_argument): Obey MUST_PASS_IN_STACK.
	* i386.h (MUST_PASS_IN_STACK): Use default_must_pass_in_stack
	for x86-64.
	
	Mon Apr 21 15:13:51 CEST 2003  Jan Hubicka  <jh@suse.cz>
	* reload.c (find_valid_class):  Allow fixed registers to refuse
	the mode; compute real amount of choices to allocate given register.
	
	Sun Apr  6 17:43:49 CEST 2003  Jan Hubicka  <jh@suse.cz>
	PR target/9929
	* reload.c (find_reloads_toplev):  Remove now redundant alternative
	(find_reloads_address_1): Synchronize handling of subregs with
	find_reloads_toplev;  Always reload whole subreg when the inner
	value requires more registers.
	
	Zdenek Dvorak
	* flow.c (MAX_LIVENESS_ROUNDS): New.
	(calculate_global_regs_live): Guarantee that liveness updating will
	terminate.
	(update_life_info_in_dirty_blocks): Remove hack that masked the bug.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.hammer.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.1.2.179&r2=1.1.2.180
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.955.2.24&r2=1.955.2.25
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flow.c.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.540.2.5&r2=1.540.2.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/gccbug.in.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.15.28.1&r2=1.15.28.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reload.c.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.197.2.8&r2=1.197.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.490.2.48&r2=1.490.2.49
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.h.diff?cvsroot=gcc&only_with_tag=hammer-3_3-branch&r1=1.305.2.17&r2=1.305.2.18

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[mmitchel at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929


mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.2                       |3.4


------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-10-16 02:45 -------
Postponed until GCC 3.4.

Jan, since you seem to have a patch for this can you get it approved for GCC 3.3.4?

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-05 03:39 -------
Any news of getting this approved?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-08-09 13:11:16         |2003-12-05 03:39:39
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-16 23:00 -------
Patch here: <http://gcc.gnu.org/ml/gcc-patches/2003-07/msg02582.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[danglin at gcc dot gnu dot org]

------- Additional Comments From danglin at gcc dot gnu dot org  2003-12-17 05:40 -------
I'm confused.  The patch to pa.h is installed on 3.3 and trunk.
The history linking it to 9929 is tenuous.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-17 05:44 -------
Man I messed up because Jan had put the wrong subject in the patch.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|patch                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-29 17:08 -------
Okay this time it is the right one really, patch here: <http://gcc.gnu.org/ml/gcc-patches/
2003-12/msg02201.html>.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-29 17:08 -------
Okay this time it is the right one, patch here: <http://gcc.gnu.org/ml/gcc-patches/2003-12/
msg02204.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929

[Bug target/9929] [3.3/3.4 regression] Can't find spill register in GENERAL_REGS

[hubicka at gcc dot gnu dot org]

------- Additional Comments From hubicka at gcc dot gnu dot org  2004-01-10 11:40 -------
Fixed by Richard's reversal of mine's patch:
        PR opt/12441
        Revert: Sat Mar 30 14:08:55 CET 2002  Jan Hubicka  <jh@suse.cz>
        * i386.c (aligned_operand): Be prepared for SUBREGed registers.
        (ix86_decompose_address): Use REG_P instead of GET_CODE (...) == REG.
        (ix86_address_cost): Be prepared for SUBREGed registers.
        (legitimate_address_p): Accept SUBREGed registers.



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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9929