Jim Wilson
666fdc46bc
gcc/ * config/riscv/predicates.md (p2m1_shift_operand): New. (high_mask_shift_operand): New. * config/riscv/riscv.md (lshrsi3_zero_extend_3+1): New combiner pattern using p2m1_shift_operand. (lshsi3_zero_extend_3+2): New combiner pattern using high_mask_shift_operand. gcc/testsuite/ * gcc.target/riscv/shift-shift-1.c: New. * gcc.target/riscv/shift-shift-2.c: New. * gcc.target/riscv/shift-shift-3.c: New. From-SVN: r262278
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