[Bug bootstrap/11271] New: [arm-elf] regex.c ICEs for thumb multilib

[Bug bootstrap/11271] New: [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

           Summary: [arm-elf] regex.c ICEs for thumb multilib
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dhazeghi@yahoo.com
                CC: gcc-bugs@gcc.gnu.org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: arm-elf

Building an arm-elf cross compiler with current mainline fails in libiberty, because xgcc ICEs 
building regex.c for the libiberty thumb multilib:

/tmp/srcobj/gcc/xgcc -B/tmp/srcobj/gcc/ -nostdinc -B/tmp/srcobj/arm-elf/thumb/newlib/ -
isystem /tmp/srcobj/arm-elf/thumb/newlib/targ-include -isystem /tmp/src/newlib/libc/include 
-B/tmp/dara/arm/arm-elf/bin/ -B/tmp/dara/arm/arm-elf/lib/ -isystem /tmp/dara/arm/arm-elf/
include -isystem /tmp/dara/arm/arm-elf/sys-include -L/tmp/srcobj/ld  -mthumb -c -
DHAVE_CONFIG_H -O2 -g -O2 -I. -I../../../../src/libiberty/../include  -W -Wall -Wtraditional -
pedantic ../../../../src/libiberty/regex.c -o regex.o
In file included from ../../../../src/libiberty/regex.c:197:
../../../../src/include/xregex2.h:551: warning: ISO C90 does not support `static' or type qualifiers 
in parameter array declarators
../../../../src/libiberty/regex.c: In function `byte_regex_compile':
../../../../src/libiberty/regex.c:4257: internal compiler error: Segmentation fault

[Bug bootstrap/11271] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From dhazeghi at yahoo dot com  2003-06-20 19:56 -------
Created an attachment (id=4259)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4259&action=view)
regex.i.bz2

ICEs for arm-elf with -O2 -mthumb. Works fine for lower optimization, or
without -mthumb

[Bug bootstrap/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271


dhazeghi at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[arm-elf] regex.c ICEs for  |[3.4 regression] [arm-elf]
                   |thumb multilib              |regex.c ICEs for thumb
                   |                            |multilib


------- Additional Comments From dhazeghi at yahoo dot com  2003-06-20 20:01 -------
Checked against 3.2.3 and 3.3 branch, ICE doesn't occur. With mainline 20030603, I get the same 
ICE.

[Bug target/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[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=11271


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|bootstrap                   |target

[Bug target/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From dhazeghi at yahoo dot com  2003-07-05 20:22 -------
Reconfirmed with 20030705. Current error message is:
../../../../src/libiberty/regex.c: In function `byte_regex_compile':
../../../../src/libiberty/regex.c:4257: internal compiler error: in output_address, at final.c:3172
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

I'll try to reduce the testcase.

[Bug target/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[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=11271


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-07-05 21:53:22
               date|                            |


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-05 21:53 -------
I can confirm this on the mainline (20030705) too. I could only reduce it to a little less 
than 500 lines, every time I removed any more it did not ICE, If someone can do better 
than thank you.

[Bug target/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271


dhazeghi at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|i686-pc-linux-gnu           |
   GCC host triplet|i686-pc-linux-gnu           |
   Last reconfirmed|2003-07-05 21:53:22         |2003-07-27 18:51:31
               date|                            |


------- Additional Comments From dhazeghi at yahoo dot com  2003-07-27 18:51 -------
Still there...

[Bug target/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From dhazeghi at yahoo dot com  2003-07-27 22:52 -------
err... month. I can't type today.

[Bug target/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271


dhazeghi at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rearnsha at arm dot com


------- Additional Comments From dhazeghi at yahoo dot com  2003-07-27 22:52 -------
Richard, have you seen this problem before? It's been present for over the lunch.

[Bug target/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[rearnsha at arm dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From rearnsha at arm dot com  2003-07-28 16:46 -------
Subject: Re:  [3.4 regression] [arm-elf] regex.c ICEs 
 for thumb multilib


> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

This turns out to be a result of the following patch:

	http://gcc.gnu.org/ml/gcc-patches/2003-03/msg02014.html

+ 2003-03-26  Eric Botcazou  <ebotcazou@libertysurf.fr>
+ 
+       PR target/7784
+       * reload.c (find_reloads_address): Handle
+       (PLUS (PLUS (REG) (REG)) (CONST_INT)) form for
+       all base registers.
+ 

As far as I can determine, this is because of the extra constraint added 
to the test that ensures that the register being reloaded is valid as a 
base register.  Unfortunately, this fails on thumb, since SP is not a 
valid base register for QImode (so a further reload will be needed).  
Prior to this patch we seemed to get things right even without the 
additional test.

Eric, was there a particular reason for adding the test of 
REG_MODE_OK_FOR_BASE_P?

R.

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[rearnsha 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=11271


rearnsha at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P2                          |P1
   Last reconfirmed|2003-07-27 18:51:31         |2003-07-29 10:35:41
               date|                            |
            Summary|[3.4 regression] [arm-elf]  |[3.3.1/3.4 regression] [arm-
                   |regex.c ICEs for thumb      |elf] regex.c ICEs for thumb
                   |multilib                    |multilib
            Version|3.4                         |3.1.1


------- Additional Comments From rearnsha at gcc dot gnu dot org  2003-07-29 10:35 -------
I'm seeing this on the 3.3 branch as well (which is what I would expect given my
analysis). This is a regression since the 3.3 release.

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[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=11271


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
   Target Milestone|3.4                         |3.3.2

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[ebotcazou at libertysurf dot fr]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From ebotcazou at libertysurf dot fr  2003-07-30 17:14 -------
Subject: Re:  [3.4 regression] [arm-elf] regex.c ICEs  for thumb multilib

> + 2003-03-26  Eric Botcazou  <ebotcazou@libertysurf.fr>
> +
> +       PR target/7784
> +       * reload.c (find_reloads_address): Handle
> +       (PLUS (PLUS (REG) (REG)) (CONST_INT)) form for
> +       all base registers.
> +
>
> As far as I can determine, this is because of the extra constraint added
> to the test that ensures that the register being reloaded is valid as a
> base register.  Unfortunately, this fails on thumb, since SP is not a
> valid base register for QImode (so a further reload will be needed).
> Prior to this patch we seemed to get things right even without the
> additional test.

Then this is a thinko in the patch: it was really meant to extend the former
code, not to add new restrictions to it. This was needed because we get this
form of address (base regs that are not fp/sp) on SPARC sometimes.

> Eric, was there a particular reason for adding the test of
> REG_MODE_OK_FOR_BASE_P?

No, I only mimiced the chunk of code immediately above (or so, I don't have
the sources at hand for the time being) that had extended another condition
the same way (from fp/sp to all base registers) according to the comment.

- Eric

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[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=11271


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |steve at chelsio dot com


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-30 20:03 -------
*** Bug 11730 has been marked as a duplicate of this bug. ***

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[steve at chelsio dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From steve at chelsio dot com  2003-08-19 10:28 -------
Confirming that Richard's patch fixes the ICE on the trunk (I've stopped abusing
myself with SSA).  Anyone for a commit?

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[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=11271


mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.2                       |3.3.3


------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-10-16 17:08 -------
I'll approve this patch for the mainline.  

Meanwhile, postponed until GCC 3.3.3.

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From dhazeghi at yahoo dot com  2003-10-24 16:06 -------
Is the patch for this in yet? Also, since there will be a 3.3.3, does it make sence to put on the 
branch? Thanks.

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271


dhazeghi at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |green at redhat dot com


------- Additional Comments From dhazeghi at yahoo dot com  2003-10-24 16:08 -------
*** Bug 12714 has been marked as a duplicate of this bug. ***

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[green at redhat dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From green at redhat dot com  2003-10-29 00:51 -------
FWIW, as of today, this failure no longer happens on the tree-ssa branch.

AG

[Bug target/11271] [3.3.1/3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[cvs-commit 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=11271



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-10-31 11:37 -------
Subject: Bug 11271

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rearnsha@gcc.gnu.org	2003-10-31 11:37:20

Modified files:
	gcc            : ChangeLog reload.c 

Log message:
	PR target/11271
	* reload.c (find_reloads_address): Handle any register in
	(PLUS (PLUS (REG) (REG)) (CONST_INT).

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1616&r2=2.1617
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reload.c.diff?cvsroot=gcc&r1=1.222&r2=1.223

[Bug target/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[pinskia 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=11271


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3.1/3.4 regression] [arm-|[3.3.1 regression] [arm-elf]
                   |elf] regex.c ICEs for thumb |regex.c ICEs for thumb
                   |multilib                    |multilib


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-11-02 23:00 -------
Fixed for 3.4.

[Bug target/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271



------- Additional Comments From dhazeghi at yahoo dot com  2003-11-04 23:59 -------
Any chance of getting a fix in for 3.3.3?

[Bug target/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-12-12 08:21 -------
Richard, do you plan to backport Ulrich's final fix to the 3.3 branch?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug target/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-12-21 20:20 -------
Subject: Bug 11271

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	gdr@gcc.gnu.org	2003-12-21 20:20:06

Modified files:
	gcc            : ChangeLog reload.c 

Log message:
	2003-12-21  Gabriel Dos Reis <gdr@integrable-solutions.net>
	
	Backport from mainline:
	2003-10-31  Richard Earnshaw  <rearnsha@arm.com>
	
	PR target/11271
	* reload.c (find_reloads_address): Handle any register in
	(PLUS (PLUS (REG) (REG)) (CONST_INT).

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.852&r2=1.16114.2.853
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reload.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.199.2.8&r2=1.199.2.9



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug target/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2003-12-21 20:24 -------
backported patch from mainline  to 3_3-branch.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug target/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-12-21 22:04 -------
> backported patch from mainline  to 3_3-branch.

Gaby, this patch breaks s390 (this was hinted at in my last comment).  Moreover,
I think reload patches should be handled with *extreme* caution on a release
branch, because they are almost guaranteed to trigger bugs elsewhere.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gdr at integrable-solutions
                   |                            |dot net
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug target/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[gdr at integrable-solutions dot net]

------- Additional Comments From gdr at integrable-solutions dot net  2003-12-21 22:16 -------
Subject: Re:  [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

"ebotcazou at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:

| > backported patch from mainline  to 3_3-branch.
| 
| Gaby, this patch breaks s390 (this was hinted at in my last  comment). 

Damn, I don't know how I managed to miss that comment.  I thoight I
have been through all the audti trail and related comments before
applying the patch.

Is that breakage a latent bug or the patch itself broken?

-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |NEW
          Component|target                      |optimization


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-12-22 03:39 -------
Subject: Bug 11271

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	gdr@gcc.gnu.org	2003-12-22 03:39:14

Modified files:
	gcc            : ChangeLog reload.c 

Log message:
	PR target/11271
	* reload.c: Revert last backport from mainline.  It breaks
	s390.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.854&r2=1.16114.2.855
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reload.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.199.2.9&r2=1.199.2.10



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3.1 regression] [arm-elf] regex.c ICEs for thumb multilib

[ebotcazou at gcc dot gnu dot org]

------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-12-22 05:48 -------
> Is that breakage a latent bug or the patch itself broken?

A mix of both: the patch is too permissive for platforms that have special
load-address patterns (like s390).


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3 regression] [arm-elf] regex.c ICEs for thumb multilib

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-01-14 08:11 -------
Won't be fixed before 3.3.3

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal
           Priority|P1                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3 regression] [arm-elf] regex.c ICEs for thumb multilib

[dhazeghi at yahoo dot com]

------- Additional Comments From dhazeghi at yahoo dot com  2004-01-16 04:01 -------
Is this practical to fix for 3.3.x? If not maybe should close as WONTFIX, or SUSPEND.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3 regression] [arm-elf] regex.c ICEs for thumb multilib

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2004-01-16 04:17 -------
Given it's an ice-on-valid, I would keep it open to see if any of our middle-
end specialist can come up with a solution for the 3.3 branch.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3 regression] [arm-elf] regex.c ICEs for thumb multilib

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-01-21 04:08 -------
Unlikely to be fixed in 3.3.x

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3 regression] [arm-elf] regex.c ICEs for thumb multilib

[rearnsha at gcc dot gnu dot org]

------- Additional Comments From rearnsha at gcc dot gnu dot org  2004-01-23 09:54 -------
Reopened to ...

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-07-29 10:35:41         |2004-01-23 09:54:08
               date|                            |
   Target Milestone|3.3.3                       |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.3 regression] [arm-elf] regex.c ICEs for thumb multilib

[rearnsha at gcc dot gnu dot org]

------- Additional Comments From rearnsha at gcc dot gnu dot org  2004-01-23 09:54 -------
Let's try that again...

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WONTFIX                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271

[Bug optimization/11271] [3.4 regression] [arm-elf] regex.c ICEs for thumb multilib

[rearnsha at gcc dot gnu dot org]

------- Additional Comments From rearnsha at gcc dot gnu dot org  2004-01-23 09:55 -------
mark as 'Fixed in 3.4'

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED
            Summary|[3.3 regression] [arm-elf]  |[3.4 regression] [arm-elf]
                   |regex.c ICEs for thumb      |regex.c ICEs for thumb
                   |multilib                    |multilib


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11271