On Mon, Sep 26, 2016 at 1:48 PM, Christophe Lyon
<christophe.l...@linaro.org> wrote:
> On 26 September 2016 at 11:43, Matthew Wahab <matthew.wa...@foss.arm.com> 
> wrote:
>> Hello,
>>
>> On 25/09/16 14:00, Christophe Lyon wrote:
>>>>>
>>>>>
>>>>> This patch adds the new intrinsics:
>>>>>   vbsl_f16, vbslq_f16, vdup_n_f16, vdupq_n_f16, vdup_lane_f16,
>>>>>   vdupq_lane_f16, vext_f16, vextq_f16, vmov_n_f16, vmovq_n_f16,
>>>>>   vrev64_f16, vrev64q_f16, vtrn_f16, vtrnq_f16, vuzp_f16, vuzpq_f16,
>>>>>   vzip_f16, vzipq_f16.
>>>>>
>>>>> This patch also updates the advsimd-intrinsics testsuite to test the f16
>>>>> variants for ARM targets. These intrinsics are only implemented in the
>>>>> ARM target so the tests are disabled for AArch64 using an extra
>>>>> condition on a new convenience macro FP16_SUPPORTED. This patch also
>>>>> disables, for the ARM target, the testsuite defined macro vdup_n_f16 as
>>>>> it is no longer needed.
>>>
>>>
>>> Since you committed this patch, I've noticed that libgcc fails to build
>>> when GCC is configured:
>>> --target arm-none-eabi and default cpu
>>> /tmp/9649048_29.tmpdir/ccuBwQJJ.s: Assembler messages:
>>> /tmp/9649048_29.tmpdir/ccuBwQJJ.s:64: Error: selected processor does
>>> not support ARM mode `movwlt r0,32768'
>>> /tmp/9649048_29.tmpdir/ccuBwQJJ.s:65: Error: selected processor does
>>> not support ARM mode `movwge r0,32767'
>>> make[4]: *** [_ssaddHQ.o] Error 1
>>> make[4]: Leaving directory
>>>
>>> `/tmp/9649048_29.tmpdir/aci-gcc-fsf/builds/gcc-fsf-gccsrc/obj-arm-none-eabi/gcc1/arm-none-eabi/fpu/libgcc'
>>>
>>
>>
>> I can't reproduce the failure, could you send the configure arguments for
>> the build.
>>
>
> If I'm not mistaken, that is:
>  --target=arm-none-eabi  --disable-nls --disable-libgomp
> --disable-libmudflap --disable-libcilkrts --enable-checking
> --enable-languages=c,c++ --with-newlib
>
> Maybe you've disabled multilibs?


I'm pretty sure I built this as part of reviewing all these patches
with --with-mutlib-list=aprofile and didnt' see any failures. Not sure
what's going on here.

Ramana
>
>> I've tried assembling the string 'movw r0, 32768' and get the error when
>> -march=armv6kz or earlier. I suspect the new movhi and/or movhf patterns
>> added earlier in the series need the architecture level added as a
>> precondition but I'll need to look into it.
>>
>> Matthew
>
> Thanks,
>
> Christophe

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