[LLVMdev] some llvm/clang missed optimizations
eli.friedman at gmail.com
Tue Jan 26 20:34:33 PST 2010
On Tue, Jan 26, 2010 at 7:42 PM, John Regehr <regehr at cs.utah.edu> wrote:
>> Umm, can you find one that isn't a popcount implementation?
> MMX psadbw instruction:
> Position of first set bit:
> Log2 floor:
> Pixel format conversion:
Okay... it definitely appears that the issue is being introduced by
your test harness duplicating expressions.
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