About

This allows the user to write a single function that the compiler will compile multiple times with different ISAs. On the first call of the function an IFUNC resolver will run and determine which function is called.

Stakeholders/Partners

RISE:

SiFive: Kito Cheng (specification and GCC implementation).

SiFive: Piyou Chen (LLVM implementation)

Dependencies

Status

Development	COMPLETE
Development Timeline	2H2024
Upstreaming	COMPLETE
Upstream Version
Contacts	Kito Cheng (SiFive) Piyou Chen (SiFive)
Dependencies

Updates

09 Oct 2024

target_versions patch landed in llvm https://github.com/llvm/llvm-project/pull/111333
target_clones patch landed in llvm mid September https://github.com/llvm/llvm-project/pull/85786/

11 Jul 2024

Split from Target Attribute Support

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CT_01_016 - Function Multiversioning (LLVM)