Messages in this thread | | | Date | Thu, 03 May 2012 11:28:44 -0700 | From | "H. Peter Anvin" <> | Subject | Re: Oops with DCACHE_WORD_ACCESS and ocfs2, autofs4 |
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+ "lea" __WORDSUFFIX " %2,%1\n\t" + "and" __WORDSUFFIX " %4,%1\n\t" + "shl" __WORDSUFFIX " $3,%1\n\t" + "shr" __WORDSUFFIX " %b1,%0\n\t"
Also, for this sequence of instructions using %ecx unconditionally is actually better (avoids REX prefixes on 64 bits.)
-hpa
-- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
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