diff --git a/gcc/config/riscv/riscv-vsetvl.cc b/gcc/config/riscv/riscv-vsetvl.cc index 7066dea3d14430517750017513ec0f6bc675919a..971c3f907424cc0389888ac17851983b3bdcc5f8 100644 --- a/gcc/config/riscv/riscv-vsetvl.cc +++ b/gcc/config/riscv/riscv-vsetvl.cc @@ -744,7 +744,10 @@ insert_vsetvl (enum emit_type emit_type, rtx_insn *rinsn, if (vlmax_avl_p (info.get_avl ())) { gcc_assert (has_vtype_op (rinsn) || vsetvl_insn_p (rinsn)); - rtx vl_op = info.get_avl_reg_rtx (); + /* For user vsetvli a5, zero, we should use get_vl to get the VL + operand "a5". */ + rtx vl_op + = vsetvl_insn_p (rinsn) ? get_vl (rinsn) : info.get_avl_reg_rtx (); gcc_assert (!vlmax_avl_p (vl_op)); emit_vsetvl_insn (VSETVL_NORMAL, emit_type, info, vl_op, rinsn); return VSETVL_NORMAL;