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The asm code shows multiple conversions. Gcc has always been terribly bad at dealing with chars, which are constantly converted to ints for every operation and zero-extended after each operation. But here in addition there are conversions before and after the flsnz(). Let's just mark the variables as long and use flsnz_long() to process them without any conversion. This shortens the code and makes it slightly faster. Note that the fls operations could make use of __builtin_clz() on gcc 4.6 and above, and it would be useful to implement native support for ARM as well. This is cbtree commit 1f0f83ba26f2279c8bba0080a2e09a803dddde47. This is ebtree commit 9c38dcae22a84f0b0d9c5a56facce1ca2ad0aaef. |
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atomic-ops.h | ||
eb32sctree.h | ||
eb32tree.h | ||
eb64tree.h | ||
ebimtree.h | ||
ebistree.h | ||
ebmbtree.h | ||
ebpttree.h | ||
ebsttree.h | ||
ebtree-t.h | ||
ebtree.h | ||
ist.h | ||
lru.h | ||
mjson.h | ||
plock.h | ||
sha1.h | ||
slz-tables.h | ||
slz.h | ||
xxhash.h |