Re: [PATCH] x86-64: use 32-bit XOR to zero registers

From: Ingo Molnar
Date: Tue Jun 26 2018 - 03:17:13 EST

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* Jan Beulich <JBeulich@xxxxxxxx> wrote:

> Some Intel CPUs don't recognize 64-bit XORs as zeroing idioms

Please write out the consequence of that in the changelog.

Thanks,

Ingo

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In reply to: Henrique de Moraes Holschuh: "Re: [PATCH] x86-64: use 32-bit XOR to zero registers"
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