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| From: | hjl.tools at gmail dot com |
| Subject: | [Bug gas/22871] Encode instructions of 64-bit operand without the REX_W bit |
| Date: | Fri, 23 Feb 2018 11:24:55 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=22871 --- Comment #14 from H.J. Lu <hjl.tools at gmail dot com> --- We should avoid testb optimization. This are latencies: testb : 33711871 testw : 21204854 testl : 18938530 testq : 18942712 on Haswell. Most of other processors show that testb is the slowest. -- You are receiving this mail because: You are on the CC list for the bug.
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