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On Wed, 15 May 2013 16:59:57 +0200 |
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yac <yac@g.o> wrote: |
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> Hi, |
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> |
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> I was recently investigating what cpu flags do I have and how does it |
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> work. I have put what I have so far at [1]. |
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> |
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> So I thought I let you know in case someone wants to chip in. |
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> |
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> [1] https://github.com/yaccz/cufd |
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I've seen gcc -Q --help=target giving false results before due to the way that |
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options are parsed and some flags that set other flags not getting processed on |
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the --help code path. The second option you list is better. |
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-native doesn't set 3dnow, mmx, sse, sse2, sse3, ssse3 or sse4a. I'm guessing |
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they're just handed through the -march setting. |
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sys-apps/cpuid is awesome. |
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MMX2/MMXEXT still confuses me. |
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-- |
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Ryan Hill psn: dirtyepic_sk |
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gcc-porting/toolchain/wxwidgets @ gentoo.org |
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47C3 6D62 4864 0E49 8E9E 7F92 ED38 BD49 957A 8463 |
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