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Re: [PATCH, wwwdocs, AArch64] Document issues with singleton vector types
- From: Marcus Shawcroft <marcus dot shawcroft at gmail dot com>
- To: Yufeng Zhang <Yufeng dot Zhang at arm dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 19 May 2014 09:16:06 +0100
- Subject: Re: [PATCH, wwwdocs, AArch64] Document issues with singleton vector types
- Authentication-results: sourceware.org; auth=none
- References: <53627D0B dot 6050309 at arm dot com>
On 1 May 2014 17:57, Yufeng Zhang <Yufeng.Zhang@arm.com> wrote:
> "On AArch64, the singleton vector types int64x1_t, uint64x1_t and
> float64x1_t exported by arm_neon.h are defined to be the same as their
> base types. This results in incorrect application of parameter passing
> rules to arguments of types int64x1_t and uint64x1_t, with respect to
> the AAPCS64 ABI specification. In addition, names of C++ functions with
> parameters of these types (including float64x1_t) are not mangled
> correctly. The current typedef declarations also unintentionally
> allow implicit casting between singleton vector types and their base
> types. These issues will be resolved in a near future release. See
> PR60825 for more information."
Looks fine to me. Go ahead.
/Marcus