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@ -75,4 +75,24 @@ typedef int x86_reg; |
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# define BROKEN_RELOCATIONS 1 |
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#endif |
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/*
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* If gcc is not set to support sse (-msse) it will not accept xmm registers |
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* in the clobber list for inline asm. XMM_CLOBBERS takes a list of xmm |
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* registers to be marked as clobbered and evaluates to nothing if they are |
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* not supported, or to the list itself if they are supported. Since a clobber |
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* list may not be empty, XMM_CLOBBERS_ONLY should be used if the xmm |
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* registers are the only in the clobber list. |
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* For example a list with "eax" and "xmm0" as clobbers should become: |
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* : XMM_CLOBBERS("xmm0",) "eax" |
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* and a list with only "xmm0" should become: |
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* XMM_CLOBBERS_ONLY("xmm0") |
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*/ |
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#if HAVE_XMM_CLOBBERS |
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# define XMM_CLOBBERS(...) __VA_ARGS__ |
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# define XMM_CLOBBERS_ONLY(...) : __VA_ARGS__ |
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#else |
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# define XMM_CLOBBERS(...) |
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# define XMM_CLOBBERS_ONLY(...) |
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#endif |
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#endif /* AVUTIL_X86_CPU_H */ |
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