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Re: [Qemu-devel] AVX support for TCG
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] AVX support for TCG |
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Date: |
Sat, 5 Jan 2019 08:38:22 +1000 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 |
On 1/5/19 8:33 AM, Nick Renieris wrote:
> I know host ABI's can differ like that, but I don't understand why
> that should matter. Everything (TCG compiler included) is compiled
> with the same way, right? For the host arch.
No, not all of the pieces are compiled the same way. TCG generates machine
instructions to perform a call from generated code into compiler generated
code. So TCG needs to know about the host compiler ABI.
r~