[cfe-dev] Can't build ASAN tests on i586 without SSE2

[İsmail Dönmez]

On Wed, Dec 4, 2013 at 11:49 AM, Kostya Serebryany <kcc at google.com> wrote:

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> On Wed, Dec 4, 2013 at 1:42 PM, İsmail Dönmez <ismail at donmez.ws> wrote:
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>> Hi,
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>> On Mon, Dec 2, 2013 at 3:31 PM, Kostya Serebryany <kcc at google.com> wrote:
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>>> This is strange, #include <emmintrin.h> has been there for ages and SSE2
>>> is pretty old.
>>> Maybe you are using some minimalistic version of vm?
>>>
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>> SSE2 support is disabled on purpose. i586 architecture does not have
>> SSE(2) support. Can we somehow make it optional in the asan tests please?
>>
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> How to we understand at compile time that SSE2 is not supported?
> Does i586 define some symbol like __i386__ or some such?
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At least on openSUSE it does:

[~]> gcc -m32 -dM -E - < /dev/null|grep -i i586
#define __i586 1
#define __i586__ 1
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