>
> I didn't know that, so you saved me a lot of time. Thanks! 🙂 The change
> is now landed in LLVM: Update preserve_most to treat XMM registers like C
> by sethbrenith · Pull Request #73866 · llvm/llvm-project (github.com)
> <https://github.com/llvm/llvm-project/pull/73866>.

Amazing, thanks for taking this over! Have you checked if this fixed the
binary size regression (and possibly performance)?

пн, 4 дек. 2023 г. в 21:06, 'seth.b...@microsoft.com' via v8-dev <
v8-dev@googlegroups.com>:

>
> I guess you know it already, but just in case: changing *preserve_most*
> for Windows would likely require adding a new windows-specific 
> *callee-saved-regs
> list* into *X86CallingCond.td *(e.g. *CSR_Win64_RT_MostRegs*) that would
> contain *xmm6-xmm15*. Then you'd need to dispatch based on whether
> *IsWin64* in *X86RegisterInfo.cpp.*
>
>
> I didn't know that, so you saved me a lot of time. Thanks! 🙂 The change
> is now landed in LLVM: Update preserve_most to treat XMM registers like C
> by sethbrenith · Pull Request #73866 · llvm/llvm-project (github.com)
> <https://github.com/llvm/llvm-project/pull/73866>.
>
>
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-- 
Sincerely,
Anton.

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