Use right shifts to eliminate redundant test/compare insns on the H8
gcc/ * config/h8300/h8300.c (select_cc_mode): Handle ASHIFTRT and LSHIFTRT.
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@ -1950,6 +1950,7 @@ h8300_select_cc_mode (enum rtx_code cond, rtx op0, rtx op1)
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|| GET_CODE (op0) == NEG || GET_CODE (op0) == AND
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|| GET_CODE (op0) == IOR || GET_CODE (op0) == XOR
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|| GET_CODE (op0) == NOT || GET_CODE (op0) == ASHIFT
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|| GET_CODE (op0) == ASHIFTRT || GET_CODE (op0) == LSHIFTRT
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|| GET_CODE (op0) == MULT || GET_CODE (op0) == SYMBOL_REF
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|| GET_CODE (op0) == SIGN_EXTEND || GET_CODE (op0) == ZERO_EXTEND
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|| REG_P (op0) || MEM_P (op0)))
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