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* expmed.c (shift_cost, shiftadd_cost, shiftsub_cost): Additionally index by machine mode. (init_expmed): Initialize shift_cost, shiftadd_cost and shiftsub_cost tables inside the loop over machine modes. (synth_mult, expand_mult_highpart_optab, expand_mult_highpart, expand_divmod): Index shift*_cost by the appropriate machine mode. From-SVN: r83053
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