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The vstart_eq_zero flag is updated at the beginning of the translation phase from the env->vstart variable. During the execution phase all functions will set env->vstart = 0 after a successful execution, but the vstart_eq_zero flag remains the same as at the start of the block. This will wrongly cause SIGILLs in translations that requires env->vstart = 0 and might be reading vstart_eq_zero = false. This patch adds a new finalize_rvv_inst() helper that is called at the end of each vector instruction that will both update vstart_eq_zero and do a mark_vs_dirty(). Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1976 Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com> Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20240314175704.478276-10-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>