Bootstrap failure on aarch64-linux-gnu with trunk

Bootstrap failure on aarch64-linux-gnu with trunk

[Andrew Pinski]

Between revision 244386 and 244448, aarch64-linux-gnu started to
miscompare bootstrap.

These are the options I used:
--prefix=`pwd`/../tools \
--enable-languages=c,c++,fortran,go \
                 --with-cpu=thunderx \
                 --disable-werror  --with-sysroot=/ --enable-plugins \
                 --enable-gnu-indirect-function \
                 --with-pkgversion="Cavium Inc. (Build ${BUILD_NUMBER})"

On another system I did bootstrap at revision 244392 just fine but
without the --with-cpu option.

Thanks,
Andrew Pinski

PS here is the log part:

Comparing stages 2 and 3
Bootstrap comparison failure!
gcc/go/gogo.o differs
gcc/tree-ssa-math-opts.o differs
gcc/dwarf2out.o differs
gcc/tree.o differs
gcc/varasm.o differs
gcc/ipa-cp.o differs
gcc/sdbout.o differs
gcc/fold-const.o differs
gcc/ipa-polymorphic-call.o differs
gcc/tree-ssa-ter.o differs
gcc/loop-iv.o differs
gcc/ipa-devirt.o differs
gcc/gcov.o differs
gcc/hsa-gen.o differs
gcc/ipa-inline-analysis.o differs
gcc/simplify-rtx.o differs
gcc/tree-ssa-ccp.o differs
gcc/tree-sra.o differs
gcc/ipa-prop.o differs
gcc/tree-ssa-alias.o differs
gcc/expr.o differs
gcc/tree-ssa-address.o differs
gcc/tree-ssa-forwprop.o differs
libiberty/pic/cp-demangle.o differs
libiberty/cp-demangle.o differs
Makefile:23978: recipe for target 'compare' failed

Re: Bootstrap failure on aarch64-linux-gnu with trunk

[Jeff Law]

On 01/13/2017 04:54 PM, Andrew Pinski wrote:
> Between revision 244386 and 244448, aarch64-linux-gnu started to
> miscompare bootstrap.
>
> These are the options I used:
> --prefix=`pwd`/../tools \
> --enable-languages=c,c++,fortran,go \
>                  --with-cpu=thunderx \
>                  --disable-werror  --with-sysroot=/ --enable-plugins \
>                  --enable-gnu-indirect-function \
>                  --with-pkgversion="Cavium Inc. (Build ${BUILD_NUMBER})"
>
> On another system I did bootstrap at revision 244392 just fine but
> without the --with-cpu option.
I'm pretty sure its my DSE changes. I'm seeing similar failures on 
ppc64le and am about to revert once a bit more testing is complete.

jeff

Re: Bootstrap failure on aarch64-linux-gnu with trunk

[Andrew Pinski]

On Fri, Jan 13, 2017 at 3:56 PM, Jeff Law <law@redhat.com> wrote:
> On 01/13/2017 04:54 PM, Andrew Pinski wrote:
>>
>> Between revision 244386 and 244448, aarch64-linux-gnu started to
>> miscompare bootstrap.
>>
>> These are the options I used:
>> --prefix=`pwd`/../tools \
>> --enable-languages=c,c++,fortran,go \
>>                  --with-cpu=thunderx \
>>                  --disable-werror  --with-sysroot=/ --enable-plugins \
>>                  --enable-gnu-indirect-function \
>>                  --with-pkgversion="Cavium Inc. (Build ${BUILD_NUMBER})"
>>
>> On another system I did bootstrap at revision 244392 just fine but
>> without the --with-cpu option.
>
> I'm pretty sure its my DSE changes. I'm seeing similar failures on ppc64le
> and am about to revert once a bit more testing is complete.

If you need it to test the patch to fix this on aarch64-linux-gnu just
let me know and I would be gladly test it.  Bootstrap and test takes
around an hour or two hours depending on which machine I use.

Thanks,
Andrew

>
> jeff
>

Re: Bootstrap failure on aarch64-linux-gnu with trunk

[David Edelsohn]

On Fri, Jan 13, 2017 at 6:56 PM, Jeff Law <law@redhat.com> wrote:
> On 01/13/2017 04:54 PM, Andrew Pinski wrote:
>>
>> Between revision 244386 and 244448, aarch64-linux-gnu started to
>> miscompare bootstrap.
>>
>> These are the options I used:
>> --prefix=`pwd`/../tools \
>> --enable-languages=c,c++,fortran,go \
>>                  --with-cpu=thunderx \
>>                  --disable-werror  --with-sysroot=/ --enable-plugins \
>>                  --enable-gnu-indirect-function \
>>                  --with-pkgversion="Cavium Inc. (Build ${BUILD_NUMBER})"
>>
>> On another system I did bootstrap at revision 244392 just fine but
>> without the --with-cpu option.
>
> I'm pretty sure its my DSE changes. I'm seeing similar failures on ppc64le
> and am about to revert once a bit more testing is complete.

It's definitely the DSE patch.  AIX bootstrapped but had many more
testsuite failures.  With the DSE patch removed, the testsuite
failures are corrected.

Thanks, David

Re: Bootstrap failure on aarch64-linux-gnu with trunk

[Jeff Law]

On 01/13/2017 07:35 PM, David Edelsohn wrote:
> On Fri, Jan 13, 2017 at 6:56 PM, Jeff Law <law@redhat.com> wrote:
>> On 01/13/2017 04:54 PM, Andrew Pinski wrote:
>>>
>>> Between revision 244386 and 244448, aarch64-linux-gnu started to
>>> miscompare bootstrap.
>>>
>>> These are the options I used:
>>> --prefix=`pwd`/../tools \
>>> --enable-languages=c,c++,fortran,go \
>>>                  --with-cpu=thunderx \
>>>                  --disable-werror  --with-sysroot=/ --enable-plugins \
>>>                  --enable-gnu-indirect-function \
>>>                  --with-pkgversion="Cavium Inc. (Build ${BUILD_NUMBER})"
>>>
>>> On another system I did bootstrap at revision 244392 just fine but
>>> without the --with-cpu option.
>>
>> I'm pretty sure its my DSE changes. I'm seeing similar failures on ppc64le
>> and am about to revert once a bit more testing is complete.
>
> It's definitely the DSE patch.  AIX bootstrapped but had many more
> testsuite failures.  With the DSE patch removed, the testsuite
> failures are corrected.
Yea.  The bootstrap comparison failure is definitely DSE.  I'm testing a 
fairly trivial patch right now.

jeff

Re: Bootstrap failure on aarch64-linux-gnu with trunk

[Jeff Law]

On 01/13/2017 05:57 PM, Andrew Pinski wrote:
> On Fri, Jan 13, 2017 at 3:56 PM, Jeff Law <law@redhat.com> wrote:
>> On 01/13/2017 04:54 PM, Andrew Pinski wrote:
>>>
>>> Between revision 244386 and 244448, aarch64-linux-gnu started to
>>> miscompare bootstrap.
>>>
>>> These are the options I used:
>>> --prefix=`pwd`/../tools \
>>> --enable-languages=c,c++,fortran,go \
>>>                  --with-cpu=thunderx \
>>>                  --disable-werror  --with-sysroot=/ --enable-plugins \
>>>                  --enable-gnu-indirect-function \
>>>                  --with-pkgversion="Cavium Inc. (Build ${BUILD_NUMBER})"
>>>
>>> On another system I did bootstrap at revision 244392 just fine but
>>> without the --with-cpu option.
>>
>> I'm pretty sure its my DSE changes. I'm seeing similar failures on ppc64le
>> and am about to revert once a bit more testing is complete.
>
> If you need it to test the patch to fix this on aarch64-linux-gnu just
> let me know and I would be gladly test it.  Bootstrap and test takes
> around an hour or two hours depending on which machine I use.
No worries.  I've got a reasonable ppc box reserved for testing 
purposes.  I'm confident I've got the bootstrap comparison error nailed.

Jeff

Re: Bootstrap failure on aarch64-linux-gnu with trunk

[Gerald Pfeifer]

On Fri, 13 Jan 2017, Jeff Law wrote:
> I'm pretty sure its my DSE changes. I'm seeing similar failures on 
> ppc64le and am about to revert once a bit more testing is complete.

I've been seeing this on i386-unknown-freebsd as well.

Gerald