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Author SHA1 Message Date
LIU Zhiwei 9db3b70869 target/riscv: add vector configure instruction
vsetvl and vsetvli are two configure instructions for vl, vtype. TB flags
should update after configure instructions. The (ill, lmul, sew ) of vtype
and the bit of (VSTART == 0 && VL == VLMAX) will be placed within tb_flags.

Backports 2b7168fc43fb270fb89e1dddc17ef54714712f3a from qemu
2021-02-26 02:37:59 -05:00