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Re: [pr 81982] wide-int.h change broke native arm-* gcc
- From: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Aldy Hernandez <aldyh at redhat dot com>
- Cc: nd at arm dot com
- Date: Fri, 25 Aug 2017 15:42:46 +0100
- Subject: Re: [pr 81982] wide-int.h change broke native arm-* gcc
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On 25/08/17 14:27, Szabolcs Nagy wrote:
> i don't see corresponding email thread in gcc-patches, but
> since this commit:
> https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=251260
>
> i see arm-* native compiler miscompile libstdc++,
> note that the cross compiler compiles it correctly.
>
> i guess it can be some latent bug that got uncovered,
> but it is reliably reproducible, i reported
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81982
>
> those who run native arm gcc tests may see c++ execution tests
> timeout while spinning in __cxa_guard_acquire around a futex
> syscall.
>
> i'm still debugging it, but ideas and help is welcome.
>
it was a dup and already fixed.
sorry for the noise