Does VC++ support _mm_malloc?

Question

Does Visual Studio C++ 2008/2010 support _mm_malloc officially? It is defined in malloc.h but I can't find its description in the MSDN library.

score 4 · Answer 1 · answered Jul 22 '10 at 07:15

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Doesn't answer your question directly, but I think you're suppose to use _aligned_malloc. If my understanding is correct, _mm_malloc is for Intel compilers.

answered Jul 22 '10 at 07:15

GManNickG

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`_mm_malloc` is supported by gcc, and `_aligned_malloc` is not. Microsoft compiler seems to be support it too, but I can't find any official paper about it. – Kirill V. Lyadvinsky Jul 22 '10 at 08:03
It's seems to not be officially supported, the msvc "implementation" is just `#define _mm_malloc(a, b) _aligned_malloc(a, b)` so it's pretty much just a matter of whether you want to rely on MS not changing that(a pretty good assumption is they'll keep that around), or provide a similar define when you're compiling for windows. – nos Jan 19 '11 at 20:28
It should be noted that `_aligned_alloc` is **NOT** the C11/C++11 `aligned_alloc` : the parameters are inverted and `_aligned_alloc` is not compatible with `free`. – diapir Jun 17 '14 at 20:31

score 2 · Answer 2 · edited Sep 16 '15 at 15:44

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_mm_malloc/_mm_free supported in Visual Studio 2013 with using the <malloc.h> header.

edited Sep 16 '15 at 15:44

rici

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answered Jun 16 '15 at 20:38

Anton K

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"using the header" - which header? – Robinson Aug 04 '15 at 13:21
@Robinson The one in the question: `` – Anton K Aug 04 '15 at 18:57

score 0 · Answer 3 · edited May 23 '17 at 12:10

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See Equivalent C code for _mm_ type functions and, more distantly related, How to allocate aligned memory only using the standard library?

edited May 23 '17 at 12:10

Community

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answered Jan 19 '11 at 19:10

EmeryBerger

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I know how to manually achieve alignment. The question wasn't about it. The first link has nothing to do with my question too. – Kirill V. Lyadvinsky Jan 20 '11 at 07:08
I see - I misunderstood your question. – EmeryBerger Jan 20 '11 at 15:17
@EmeryBerger Thanks for the second link. – legends2k Jul 09 '15 at 11:16

score 0 · Answer 4 · answered Jan 19 '11 at 19:29

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Doesn't memalign() in <malloc.h> solve this? The man-page says it's obsolete, but ...

answered Jan 19 '11 at 19:29

Maister

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Does VC++ support _mm_malloc?

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