[0/3] target_version and aarch64 function multiversioning

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Series	target_version and aarch64 function multiversioning \| [0/3] target_version and aarch64 function multiversioning [1/3] Add support for target_version attribute [2/3,aarch64] Add function multiversioning support [3/3] WIP/RFC: Fix name mangling for target_clones

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Date: Wed, 18 Oct 2023 16:39:27 +0100
From: Andrew Carlotti <andrew.carlotti@arm.com>
To: gcc-patches@gcc.gnu.org
Subject: [0/3] target_version and aarch64 function multiversioning
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Series

target_version and aarch64 function multiversioning |

Message

Andrew Carlotti Oct. 18, 2023, 3:39 p.m. UTC

  This series adds support for function multiversioning on aarch64.  There are a
few minor issues in patch 2/3, that I intend to fix in future versions or
follow-up patches.  I also have some open questions about the correctness of
existing function multiversioning implementations [1], that could affect some
details of this patch series.

Patches 1/3 and 2/3 both pass regression testing on x86.  Patch 2/3 requires
adding function multiversioning tests to aarch64, which I haven't included yet.
Patch 3/3 demonstrates a potential approach for improving consistency of symbol
naming between target_clones and target/target_version multiversioning, but
would require agreement on how to resolve some of the issues discussed in [1].

Thanks,
Andrew


[1] https://gcc.gnu.org/pipermail/gcc/2023-October/242686.html