> > > Actually, that may have been a fault in my test. When I started, I > didn't have 32 in the constant, but something else. When I tried to > reproduce the problem with 32 it always seems to generate the shift. > > Compiling with no -O option or with -O0 causes the helper function to > be called. Compiling with -O1, 2, 3 or s causes a divide by 32 to be > replaced with a shift. > I was using -Os when I hit it.
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