Gentoo Archives: gentoo-dev

From: Gordon Pettey <petteyg359@×××××.com>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] Review: desc/cpu_flags_x86.desc
Date: Mon, 19 Jan 2015 02:28:34
Message-Id: CAHY5Med+-WmOPqSYbNY9iaRahxh4pr2pGMezOsYkRhvwDGKgxQ@mail.gmail.com
In Reply to: Re: [gentoo-dev] Review: desc/cpu_flags_x86.desc by Patrick Lauer
1 On Sun, Jan 18, 2015 at 6:13 PM, Patrick Lauer <patrick@g.o> wrote:
2
3 > On Sunday 18 January 2015 21:44:05 Michał Górny wrote:
4 >
5 > > popcnt - Enable popcnt instruction support
6 > Why?!
7
8
9 Because Intel and AMD support it via different cpuinfo feature names. It is
10 popcnt on Intel, and abm on AMD. The description of the flag should also
11 mention that it is included in feature "abm" on AMD CPUs (and Intel CPUs,
12 but since they list popcnt separately, too, that might be confusing).

Replies

Subject Author
Re: [gentoo-dev] Review: desc/cpu_flags_x86.desc Diamond <diamond@××××××.ru>