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-ax{i|M|K|W}
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Generates, on a single binary, code specialized
to the extensions specified by the codes:
i Pentium
Pro, Pentium II processors
M Pentium
with MMX technology processor
K Pentium
III processor
W Pentium
4 processor
In addition, -ax generates IA-32 generic code.
The generic code is usually slower.
Sets opportunities to generate versions of functions that use instructions
supported on the specified processors for the best performance.
Note: -axi
is not a vectorizer option. |
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-vec_report
{0|1|2|3|4|5}
Default:
-vec_report1 |
Controls the diagnostic messages from the vectorizer as follows:
n = 0: no information
n = 1: indicates vectorized /non-vectorizerd integer loops
n = 2: indicates vectorized /non-vectorized integer loops
n = 3: indicates vectorized /non-vectorized integer loops and prohibit
data dependence information
n = 4: indicates non-vectorized loops
n = 5: indicates non-vectorized loops and prohibit data dependence
information |