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* config/i386/i386.md (movstrict<mode>): Use register_operand predicate for operand 0. Add expander condition. Assert that operand 0 is a SUBREG RTX. (*movstrict<mode>_1): Use register_operand predicate for operand 0. Update operand constraints and insn condition. (zero_extend<mode>si2_and): Do not call gen_movstrict<mode>. (zero_extendqihi2_and): Do not call gen_movstrictqi. (*setcc_qi_slp): Use register_operand predicate for operand 0. Update operand 0 constraints. (setcc_qi_slp splitters): Use register_operand predicate for operand 0. From-SVN: r273891
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