https://chromiumcodereview.appspot.com/9638018/diff/13001/src/utils.h File src/utils.h (right):
https://chromiumcodereview.appspot.com/9638018/diff/13001/src/utils.h#newcode112 src/utils.h:112: const DivMagicNumbers DivMagicNumberFor625 = {0x68db8bad, 8}; On 2012/04/17 17:12:22, Alexandre wrote:
We can generate optimized code for numbers with an absolute value
equals that is
representable by <1, or k for which we have a magic number> * 2^n So optimized code can be generated for these: 60 = 15 * 2^2 100 = 25 * 2^2 1000 = 125 * 2^3
This is detailed in the arm files.
On 2012/04/17 16:59:28, alexeif wrote: > How about adding 60, 100 and 1000? They seem to have even higher
rate than
625.
Oh, I see, it has a shift anyway. Btw, why do you need constants for evens 6 and 10? https://chromiumcodereview.appspot.com/9638018/ -- v8-dev mailing list [email protected] http://groups.google.com/group/v8-dev
