_mm_malloc()

Ian Lance Taylor iant@google.com
Fri Apr 16 05:58:00 GMT 2010


nibbs22@aol.com writes:

> I thought I was guaranteed to have  _mm_malloc return array addresses
> that are aligned to 16 bytes
> and that the compiler would recognize this.

The first is true.  The second is currently not.  That is a bug in the
compiler and/or the support library.


> inside cost?
> outside cost?
> prologue peel iters?
> epilogye peel iters?
> Vector inside of loop cost?
> Calculated minimum iters for profitability: 8?

These debugging dumps are best read with reference to the source
code.

Ian



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