| commit | ad2f44368092a4f111034fc1efc09cfa0de394a5 | [log] [tgz] |
|---|---|---|
| author | Jan Beulich <jbeulich@suse.com> | Wed Feb 22 14:12:24 2023 +0100 |
| committer | Jan Beulich <jbeulich@suse.com> | Wed Feb 22 14:12:24 2023 +0100 |
| tree | c26308a260df725fc33fb9fa984603c4e94b3e7b | |
| parent | 5e39600a691e3ba76acf6ab94edb24844c2e82b7 [diff] |
x86: optimize BT{,C,R,S} $imm,%reg
In 64-bit mode BT can have REX.W or a data size prefix dropped in
certain cases. Outside of 64-bit mode all 4 insns can have the data
size prefix dropped in certain cases.