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List:       cfe-dev
Subject:    Re: [cfe-dev] cmus compiled with clang crashes with sigill
From:       Chris Lattner <clattner () apple ! com>
Date:       2009-06-25 21:34:34
Message-ID: 20B85B68-14BF-479F-9F46-3E3B1B899418 () apple ! com
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On Jun 25, 2009, at 2:27 PM, Gregory Petrosyan wrote:

> On Thu, Jun 25, 2009 at 09:18:08AM -0700, Chris Lattner wrote:
>> This is probably because clang defaults to SSE2.  Try passing -
>> mcpu=athlon-xp to clang.
>>
>
> Thanks — that fixed the SIGILL issue. But why does clang defaults to
> SSE2? It is more than strange when program compiled without any  
> special
> arch flags crashes due to use of SSE2. Wouldn't defaulting to 486 or
> something like that make more sense?

We want clang to default to the native CPU type on linux, but noone  
has written the code to do it yet,

-Chris
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