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FYI: Aarch64 Vector ABI calling convention
- From: Steve Ellcey <sellcey at cavium dot com>
- To: libc-alpha <libc-alpha at sourceware dot org>
- Date: Wed, 16 May 2018 09:27:35 -0700
- Subject: FYI: Aarch64 Vector ABI calling convention
- Reply-to: sellcey at cavium dot com
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I just wanted to post a pointer to the Aarch64 Vector (SIMD) calling
conventino that has been posted. This should open the door for a
libmvec implementation on Aarch64 when it is finalized. It appears
that the exact number of callee saved / caller saved registers is still
being discussed (See section 2.1) but it will have different callee
saved / caller saved conventions than the normal Aarch64 calling
convention so that is going to require some GCC and LLVM work to
implement.
https://gcc.gnu.org/ml/gcc/2018-05/msg00120.html
Steve Ellcey
sellcey@cavium.com