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Re: List of CPU architecture-specific macros?

From: Liu Hao <lh_mouse at 126 dot com>
To: Xi Ruoyao <ryxi at stu dot xidian dot edu dot cn>, "gcc-help at gcc dot gnu dot org" <gcc-help at gcc dot gnu dot org>
Date: Mon, 13 Feb 2017 09:23:52 +0800
Subject: Re: List of CPU architecture-specific macros?
Authentication-results: sourceware.org; auth=none
References: <3220ae09-ade1-b0bd-976c-bb4c8aeb10c3@126.com> <1486948308.1295.2.camel@stu.xidian.edu.cn>

On 2017/2/13 9:11, Xi Ruoyao wrote:

On 2017-02-12 20:24 +0800, Liu Hao wrote:

Hello,
Do we have a complete list of CPU architecture-specific macros (e.g.
__SSE__, __FMA__ on x86)? The doc
(https://gcc.gnu.org/onlinedocs/cpp/System-specific-Predefined-Macros
.html)
doesn't seem to mention it. Thanks.

The documentation said:

    you can use cpp -dM to see them all.

Just invoke

    echo "" | cpp -dM

Then you can see all predefined macros.

Yes that is why I asked. I think relying on undocumented features isevil, unless there is no other option.


--
Best regards,
LH_Mouse

References:
- List of CPU architecture-specific macros?
  - From: Liu Hao
- Re: List of CPU architecture-specific macros?
  - From: Xi Ruoyao

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