[Bug bootstrap/32753] New: building a crosscompiler for arm-elf fails because of an error in cirrus.md

[Bug bootstrap/32753] New: building a crosscompiler for arm-elf fails because of an error in cirrus.md

[leo at marco dot de]

When trying to build a crosscompiler for arm-elf with

cd i386-linux8; CC="gcc" CFLAGS="-O" LDFLAGS="-s" CLIB="" LANGUAGES=c
../gcc-4.2.1-RC-20070703/configure --srcdir=../gcc-4.2.1-RC-20070703
--prefix=/usr/arch --with-local-prefix=/usr/arch --target=arm-elf --with-newlib
--disable-libssp

it will fail with:

    build/genoutput.o build/rtl.o build/read-rtl.o build/ggc-none.o build/vec.o
build/min-insn-modes.o build/gensupport.o build/print-rtl.o build/errors.o
../build-i686-pc-linux-gnu/libiberty/libiberty.a
build/genoutput ../../gcc-4.2.1-RC-20070703/gcc/config/arm/arm.md \
  insn-conditions.md > tmp-output.c
../../gcc-4.2.1-RC-20070703/gcc/config/arm/cirrus.md:407: error: undefined
machine-specific constraint at this point: "T,*v"
../../gcc-4.2.1-RC-20070703/gcc/config/arm/cirrus.md:407: note:  in operand 0
../../gcc-4.2.1-RC-20070703/gcc/config/arm/cirrus.md:407: error: undefined
machine-specific constraint at this point: "T,*v,*v"
../../gcc-4.2.1-RC-20070703/gcc/config/arm/cirrus.md:407: note:  in operand 1
gmake[2]: *** [s-output] Error 1
gmake[2]: Leaving directory
`/mnt/projekt/soft/uti/cmd/gcc/thumb/i386-linux8/gcc'
gmake[1]: *** [all-gcc] Error 2
gmake[1]: Leaving directory `/mnt/projekt/soft/uti/cmd/gcc/thumb/i386-linux8'
gmake: *** [all] Error 2
*** Error code 2
Stop.


-- 
           Summary: building a crosscompiler for arm-elf fails because of an
                    error in cirrus.md
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: leo at marco dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug bootstrap/32753] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[leo at marco dot de]

------- Comment #1 from leo at marco dot de  2007-07-13 07:12 -------
Created an attachment (id=13908)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13908&action=view)
Stupid patch to fix the problem


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug bootstrap/32753] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mmitchel at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.2.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[mmitchel at gcc dot gnu dot org]

------- Comment #2 from mmitchel at gcc dot gnu dot org  2007-07-15 21:24 -------
Paul, can you confirm that it is impossible to build an arm-elf cross-compiler
with GCC 4.2.1?  AFAICT, nothing has changed in cirrus.md in a long time, and
cirrus.md is included in all ARM configurations, so I would think that this
means that GCC 4.2.1 for ARM is completely broken?


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pbrook at gcc dot gnu dot
                   |                            |org
           Priority|P3                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[rask at sygehus dot dk]

------- Comment #3 from rask at sygehus dot dk  2007-07-15 23:39 -------
There are test results for GCC 4.2.1 20070706 on arm-elf here:
<URL:http://gcc.gnu.org/ml/gcc-testresults/2007-07/msg00334.html>.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[pbrook at gcc dot gnu dot org]

------- Comment #4 from pbrook at gcc dot gnu dot org  2007-07-16 01:04 -------
Builds fine for me.

The bogus constraint is in a pattern that is never used - the predicate is
"TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0 [...]"

gen* are clever enough to eliminate it before it causes problems.
My guess is you broke genconditions by overriding CFLAGS.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[pbrook at gcc dot gnu dot org]

------- Comment #5 from pbrook at gcc dot gnu dot org  2007-07-16 01:28 -------
In further investigation building with a prehistoric (<3.0.1) host compiler may
also cause the same failure.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[mmitchel at gcc dot gnu dot org]

------- Comment #6 from mmitchel at gcc dot gnu dot org  2007-07-16 02:08 -------
Paul --

Thanks for investigating.

Since this should occur only for a minority of people, this is not a
showstopper.  However, would you please remove the disabled pattern?  It's not
doing anything useful, and we have some evidence that it can do something
harmful.  It's OK to remove this now, or wait until after 4.2.1 is released, as
you like.

Thanks,

-- Mark


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pbrook at gcc dot gnu dot
                   |dot org                     |org
           Priority|P1                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[leo at marco dot de]

------- Comment #7 from leo at marco dot de  2007-07-16 07:17 -------
Sorry for not noting, this. You are right, we are building on a suse 8.0 system
with gcc-2.95.3 as the host compiler. Thanks, Matthias.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[pbrook at gcc dot gnu dot org]

------- Comment #8 from pbrook at gcc dot gnu dot org  2007-07-16 13:01 -------
Subject: Bug 32753

Author: pbrook
Date: Mon Jul 16 13:01:18 2007
New Revision: 126679

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126679
Log:
2007-07-16  Paul Brook  <paul@codesourcery.com>

        PR target/32753
        gcc/
        * config/arm/cirrus.md (cirrus_arm_movsi_insn): Remove dead insn.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/cirrus.md


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[pbrook at gcc dot gnu dot org]

------- Comment #9 from pbrook at gcc dot gnu dot org  2007-07-16 13:03 -------
Subject: Bug 32753

Author: pbrook
Date: Mon Jul 16 13:03:07 2007
New Revision: 126680

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126680
Log:
2007-07-16  Paul Brook  <paul@codesourcery.com>

        PR target/32753
        gcc/
        * config/arm/cirrus.md (cirrus_arm_movsi_insn): Remove dead insn.


Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/config/arm/cirrus.md


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[pbrook at gcc dot gnu dot org]

------- Comment #10 from pbrook at gcc dot gnu dot org  2007-07-16 13:18 -------
Subject: Bug 32753

Author: pbrook
Date: Mon Jul 16 13:18:45 2007
New Revision: 126681

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126681
Log:
2007-07-16  Paul Brook  <paul@codesourcery.com>

        PR target/32753
        gcc/
        * config/arm/cirrus.md (cirrus_arm_movsi_insn): Remove dead insn.
        (cirrus_thumb2_movsi_insn): Ditto.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/cirrus.md


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.2.1                       |4.2.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[pbrook at gcc dot gnu dot org]

------- Comment #11 from pbrook at gcc dot gnu dot org  2007-07-25 15:47 -------
Should be fixed now.


-- 

pbrook at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753

[Bug target/32753] [4.2 Regression] building a crosscompiler for arm-elf fails because of an error in cirrus.md

[leo at marco dot de]

------- Comment #12 from leo at marco dot de  2007-07-26 06:33 -------
Subject: Re:  [4.2 Regression] building a crosscompiler
 for arm-elf fails because of an error in cirrus.md

pbrook at gcc dot gnu dot org wrote:
> ------- Comment #11 from pbrook at gcc dot gnu dot org  2007-07-25 15:47 -------
> Should be fixed now.

It works fine for me.

Matthias


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32753