Commit 9e01dc11 authored by Christoph Mallon's avatar Christoph Mallon
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be: Lower Perms using copy instead of swap by default.

For architectures without a swap instruction (all except general purpose register set on amd64 and ia32) this results in shorter code.
In many cases (probably except swapping two registers) it is also better this way on amd64/ia32 due to fewer uops and modern processors eliminating mov during decoding.
parent b823b786
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