On 12/13/14 3:06 PM, mats petersson wrote:
In gcc, the value does not change with -mno-sse or -mno-sse2, or based on
-m32 or -m64.
"It doesn't" != "It won't", and that's something that we need to be very careful
about when defining things like this.
Same applies in my definition. It is simply a case of "this
is the architecture's largest necessary alignment for code correctness"
(AVX prefers 32-byte alignment, but only required to be 16-byte aligned -
with 32-byte alignment, it apparently works better if it doesn't straddle
the cache-lines).
--
Mats
--
Jon Roelofs
[email protected]
CodeSourcery / Mentor Embedded
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