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* config/rs6000/rs6000.md (scc patterns): Replace subfc with subf
when carry not used. Suggested by Torbjorn Granlund.
* config/rs6000/rs6000.c (rs6000_emit_move): Don't force_reg
operand[1] unnecessarily. Suggested by Eric Christopher.
(rs6000_adjust_cost): Increase latency of store to wider load.
(rs6000_rtx_costs): mulli only allows 16-bit constants.
From-SVN: r90159
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