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On Wed, 2010-06-30 at 11:09 +1000, Beau Henderson wrote: |
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> On 06/30/10 08:07, Paul Hartman wrote: |
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[...] |
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> > You can see which options -march=native would use by running this command: |
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> > |
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> > gcc -Q --help=target -march=native |
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> > |
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> > (thanks to Daniel Iliev for the tip) |
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> > |
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> |
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> Perhaps I'm missing something but running the above gives me the impression that -march=native |
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> actually only configures the bare minimal install. I'm not seeing -mmmx or -msse3 enabled on my |
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> k8-sse3 for instance ( amongst much else ). |
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> |
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-march sometimes implies a some things. E.g., anything above a pentium2 |
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implies MMX. My hunch is that k8-sse3 implies... sse3. |
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