[Bug target/11716] New: [mips] branch out of range when building fold-const.c

[Bug target/11716] New: [mips] branch out of range when building fold-const.c

[debian-gcc at lists dot debian 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=11716

           Summary: [mips] branch out of range when building fold-const.c
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: debian-gcc at lists dot debian dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: mips-linux
GCC target triplet: mips64-linux

[forwarded from http://bugs.debian.org/202859]

3.3 CVS 20030722,
when building a mips-linux -> mips64-linux crosscompiler current gcc
creates assembler code as can't handle (Branch out of range)

The exact error messages is attached. Same happens with HEAD 20030722.
Compiler called as:
gcc --save-temps -c   -g -O2 -DIN_GCC -DCROSS_COMPILE  -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -fno-common  
-DHAVE_CONFIG_H    -I. -I. -I../../gcc-cvs/gcc -I../../gcc-cvs/gcc/.
-I../../gcc-cvs/gcc/config -I../../gcc-cvs/gcc/../include 
../../gcc-cvs/gcc/fold-const.c -o fold-const.o

[Bug target/11716] [mips] branch out of range when building fold-const.c

[debian-gcc at lists dot debian 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=11716



------- Additional Comments From debian-gcc at lists dot debian dot org  2003-07-29 20:52 -------
Created an attachment (id=4510)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4510&action=view)
preprocessed source

[Bug target/11716] [mips] branch out of range when building fold-const.c

[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=11716


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code

[Bug target/11716] [mips] branch out of range when building fold-const.c

[rsandifo 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=11716



------- Additional Comments From rsandifo at redhat dot com  2003-08-07 18:24 -------
Subject: Re:  New: [mips] branch out of range when building fold-const.c

"debian-gcc at lists dot debian dot org" <gcc-bugzilla@gcc.gnu.org> writes:
> when building a mips-linux -> mips64-linux crosscompiler current gcc
> creates assembler code as can't handle (Branch out of range)
> The exact error messages is attached. Same happens with HEAD 20030722.

Which assembler are you using?

Richard

[Bug target/11716] [mips] branch out of range when building fold-const.c

[rsandifo 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=11716


rsandifo at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rsandifo at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-08-07 19:49:03
               date|                            |

[Bug target/11716] [mips] branch out of range when building fold-const.c

[doko at cs dot tu-berlin dot de]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11716



------- Additional Comments From doko at cs dot tu-berlin dot de  2003-08-07 22:10 -------
Subject: Re:  [mips] branch out of range when building fold-const.c

rsandifo at redhat dot com writes:
> Which assembler are you using?

binutils-2.14.90.0.5

[Bug target/11716] [mips] branch out of range when building fold-const.c

[rsandifo 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=11716



------- Additional Comments From rsandifo at redhat dot com  2003-08-08 06:36 -------
Subject: Re:  [mips] branch out of range when building fold-const.c

"doko at cs dot tu-berlin dot de" <gcc-bugzilla@gcc.gnu.org> writes:
> > Which assembler are you using?
> 
> binutils-2.14.90.0.5

OK.  As far as the 3.3 goes, it's a known limitation.  gcc just doesn't
predict the length of macro instructions correctly.

Starting with gas 2.14, you can use:

    -Wa,-relax-branch

to get around this.

Mainline gcc is supposed to get it right though.  Could you attach
the preprocessed fold-const.i file?

Thanks,
Richard

[Bug target/11716] [mips] branch out of range when building fold-const.c

[rsandifo 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=11716


rsandifo at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |WAITING

[Bug target/11716] [mips] branch out of range when building fold-const.c

[doko at cs dot tu-berlin dot de]

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11716



------- Additional Comments From doko at cs dot tu-berlin dot de  2003-08-09 08:05 -------
Subject: Re:  [mips] branch out of range when building fold-const.c

rsandifo at redhat dot com writes:
> Mainline gcc is supposed to get it right though.  Could you attach
> the preprocessed fold-const.i file?

hmm, it's already attached. or is this the wrong one?

	Matthias

[Bug target/11716] [mips] branch out of range when building fold-const.c

[rsandifo 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=11716



------- Additional Comments From rsandifo at redhat dot com  2003-08-09 09:23 -------
Subject: Re:  [mips] branch out of range when building fold-const.c

"doko at cs dot tu-berlin dot de" <gcc-bugzilla@gcc.gnu.org> writes:
> rsandifo at redhat dot com writes:
> > Mainline gcc is supposed to get it right though.  Could you attach
> > the preprocessed fold-const.i file?
> 
> hmm, it's already attached. or is this the wrong one?

Ah, sorry about that.  For some reason I'd assumed you were using 3.3 to
cross-compile 3.3 and trunk to cross-compile trunk.  But it now occurs
to me that mips64-linux-gnu is new to 3.4, so I guess you were using 3.3
and trunk to compile the same version of gcc.  Is that right?

When you say you're building a cross compiler, is it a cross-host
or a normal cross-target?  It looks from bugzilla entry like it's
a cross-target, i.e.:

    build: mips-linux-gnu
    host: mips-linux-gnu
    target: mips64-linux-gnu

In other words, the compiler itself is to run on mips-linux-gnu
rather than mips64-linux-gnu.  Is that right?

I tried building an i686-pc-linux-gnu cross mips-linux-gnu compiler
from HEAD but couldn't reproduce the problem.  The checkout I used
was updated yesterday.

Is it still a problem for you on HEAD?  If so, could you tell me what
configure line you used?  Also, could you try both -mexplicit-relocs
and -mno-explicit-relocs?

Richard

[Bug target/11716] [mips] branch out of range when building fold-const.c

[agx at sigxcpu 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=11716



------- Additional Comments From agx at sigxcpu dot org  2003-08-09 11:04 -------
Subject: Re:  [mips] branch out of range when building fold-const.c

On Sat, Aug 09, 2003 at 09:23:23AM -0000, rsandifo at redhat dot com wrote:
> Ah, sorry about that.  For some reason I'd assumed you were using 3.3 to
> cross-compile 3.3 and trunk to cross-compile trunk.  But it now occurs
> to me that mips64-linux-gnu is new to 3.4, so I guess you were using 3.3
> and trunk to compile the same version of gcc.  Is that right?
Yes, I used 3.3 and a CVS snapshot from 2003-07-22 to build a CVS
checkout from the same date.

>     build: mips-linux-gnu
>     host: mips-linux-gnu
>     target: mips64-linux-gnu
Yes.

> In other words, the compiler itself is to run on mips-linux-gnu
> rather than mips64-linux-gnu.  Is that right?
Yes.

> I tried building an i686-pc-linux-gnu cross mips-linux-gnu compiler
> from HEAD but couldn't reproduce the problem.  The checkout I used
> was updated yesterday.
I don't have any problem on i386 either. Furthermore compiling without
-O2 on mips-linux seems to work around the problem too.

> Is it still a problem for you on HEAD?  If so, could you tell me what
> configure line you used?  Also, could you try both -mexplicit-relocs
> and -mno-explicit-relocs?
Will be some time till I have this all tested. Configure is:
../gcc-cvs/configure --enable-languages=c --disable-shared 	\
 --with-newlib --disable-threads --target=mips64-linux		\
 --prefix=~/toolchain/cross-mips64-linux
Regards,
 -- Guido

[Bug target/11716] [mips] branch out of range when building fold-const.c

[rsandifo 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=11716



------- Additional Comments From rsandifo at redhat dot com  2003-08-09 11:44 -------
Subject: Re:  [mips] branch out of range when building fold-const.c

"agx at sigxcpu dot org" <gcc-bugzilla@gcc.gnu.org> writes:
> > In other words, the compiler itself is to run on mips-linux-gnu
> > rather than mips64-linux-gnu.  Is that right?
> Yes.
> 
> > I tried building an i686-pc-linux-gnu cross mips-linux-gnu compiler
> > from HEAD but couldn't reproduce the problem.  The checkout I used
> > was updated yesterday.
> I don't have any problem on i386 either.

Just to confirm: you're saying that you don't see a problem if you
create a i386-x-mips-linux-gnu compiler and then use that compiler
to compile the fold-const.i file you posted?

Richard

[Bug target/11716] [mips] branch out of range when building fold-const.c

[agx at sigxcpu 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=11716



------- Additional Comments From agx at sigxcpu dot org  2003-08-11 17:05 -------
Subject: Re:  [mips] branch out of range when building fold-const.c

On Sat, Aug 09, 2003 at 11:44:13AM -0000, rsandifo at redhat dot com wrote:
> Just to confirm: you're saying that you don't see a problem if you
> create a i386-x-mips-linux-gnu compiler and then use that compiler
> to compile the fold-const.i file you posted?
Yes, this works:

~$ /usr/local/stow/cross-mips-linux/bin/mips-linux-gcc -c fold-const.i && echo 'Works!'
Works!

This is a slightly different gcc though:
Reading specs from /usr/local/stow/cross-mips-linux/lib/gcc-lib/mips-linux/3.3/specs
Configured with: ../gcc-3.3/configure --prefix=/usr/local/stow/cross-mips-linux --target=mips-linux --disable-shared --enable-languages=c
Thread model: posix
gcc version 3.3

Regards,
 -- Guido

[Bug target/11716] [mips] branch out of range when building fold-const.c

[agx at sigxcpu 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=11716



------- Additional Comments From agx at sigxcpu dot org  2003-08-19 11:32 -------
The problem doesn't show up anymore with the latest CVS head.

[Bug target/11716] [mips] branch out of range when building fold-const.c

[rsandifo 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=11716


rsandifo at gcc dot gnu dot org changed:

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


------- Additional Comments From rsandifo at gcc dot gnu dot org  2003-08-22 09:06 -------
OK, thanks for the info. Since the problem is a known limitation with 3.3.x
and earlier, I'll go ahead and close this.  Please do open a new bug if you
get out-of-range problems on head again.

Thanks,
Richard

[Bug target/11716] [mips] branch out of range when building fold-const.c

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-27 10:35 -------
Subject: Bug 11716

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	doko@gcc.gnu.org	2004-03-27 10:35:04

Modified files:
	gcc            : ChangeLog 
	gcc/config/mips: mips.md 

Log message:
	2004-03-27  Matthias Klose  <doko@debian.org>
	
	PR target/11716
	Michael Eager <eager@mvista.com>
	
	* config/mips/mips.md: Limit the maximum length of a short branch to
	64K instead of 128K.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.955&r2=1.16114.2.956
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/mips/mips.md.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.153.2.4&r2=1.153.2.5



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11716

[Bug target/11716] [mips] branch out of range when building fold-const.c

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-27 15:40 -------
Fixed also in 3.3.4.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.0                       |3.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11716