[PATCH] D131134: [X86] Report error if the amx enabled on the non-64-bits target

Wed Aug 10 23:02:48 PDT 2022

pengfei added a comment.

In D131134#3714860 <https://reviews.llvm.org/D131134#3714860>, @craig.topper wrote:

> Yes AMX is only supported in 64-bit mode but I doubt CPUID checks which mode the program is running in.

I guess `HasAMXSave` is `false` on 32-bit mode https://github.com/llvm/llvm-project/blob/main/llvm/lib/Support/Host.cpp#L1800. But I don't have the environment to check it.

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https://reviews.llvm.org/D131134