diff --git a/gcc/config/riscv/riscv-protos.h b/gcc/config/riscv/riscv-protos.h
index 27692ffb210..e17e003f8e2 100644
--- a/gcc/config/riscv/riscv-protos.h
+++ b/gcc/config/riscv/riscv-protos.h
@@ -120,6 +120,17 @@ extern void riscv_run_selftests (void);
 
 namespace riscv_vector {
 #define RVV_VLMAX gen_rtx_REG (Pmode, X0_REGNUM)
+enum vlmul_type
+{
+  LMUL_1 = 0,
+  LMUL_2 = 1,
+  LMUL_4 = 2,
+  LMUL_8 = 3,
+  LMUL_RESERVED = 4,
+  LMUL_F8 = 5,
+  LMUL_F4 = 6,
+  LMUL_F2 = 7,
+};
 /* Routines implemented in riscv-vector-builtins.cc.  */
 extern void init_builtins (void);
 extern const char *mangle_builtin_type (const_tree);
@@ -132,6 +143,8 @@ extern rtx expand_builtin (unsigned int, tree, rtx);
 extern bool const_vec_all_same_in_range_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
 extern bool legitimize_move (rtx, rtx, machine_mode);
 extern void emit_pred_op (unsigned, rtx, rtx, machine_mode);
+extern enum vlmul_type get_vlmul (machine_mode);
+extern unsigned int get_ratio (machine_mode);
 enum tail_policy
 {
   TAIL_UNDISTURBED = 0,
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
index fbd8bbfe254..d54795694f1 100644
--- a/gcc/config/riscv/riscv-v.cc
+++ b/gcc/config/riscv/riscv-v.cc
@@ -214,4 +214,45 @@ legitimize_move (rtx dest, rtx src, machine_mode mask_mode)
   return true;
 }
 
+/* VTYPE information for machine_mode.  */
+struct mode_vtype_group
+{
+  enum vlmul_type vlmul_for_min_vlen32[NUM_MACHINE_MODES];
+  uint8_t ratio_for_min_vlen32[NUM_MACHINE_MODES];
+  enum vlmul_type vlmul_for_min_vlen64[NUM_MACHINE_MODES];
+  uint8_t ratio_for_min_vlen64[NUM_MACHINE_MODES];
+  mode_vtype_group ()
+  {
+#define ENTRY(MODE, REQUIREMENT, VLMUL_FOR_MIN_VLEN32, RATIO_FOR_MIN_VLEN32,   \
+	      VLMUL_FOR_MIN_VLEN64, RATIO_FOR_MIN_VLEN64)                      \
+  vlmul_for_min_vlen32[MODE##mode] = VLMUL_FOR_MIN_VLEN32;                     \
+  ratio_for_min_vlen32[MODE##mode] = RATIO_FOR_MIN_VLEN32;                     \
+  vlmul_for_min_vlen64[MODE##mode] = VLMUL_FOR_MIN_VLEN64;                     \
+  ratio_for_min_vlen64[MODE##mode] = RATIO_FOR_MIN_VLEN64;
+#include "riscv-vector-switch.def"
+  }
+};
+
+static mode_vtype_group mode_vtype_infos;
+
+/* Get vlmul field value by comparing LMUL with BYTES_PER_RISCV_VECTOR.  */
+enum vlmul_type
+get_vlmul (machine_mode mode)
+{
+  if (TARGET_MIN_VLEN == 32)
+    return mode_vtype_infos.vlmul_for_min_vlen32[mode];
+  else
+    return mode_vtype_infos.vlmul_for_min_vlen64[mode];
+}
+
+/* Get ratio according to machine mode.  */
+unsigned int
+get_ratio (machine_mode mode)
+{
+  if (TARGET_MIN_VLEN == 32)
+    return mode_vtype_infos.ratio_for_min_vlen32[mode];
+  else
+    return mode_vtype_infos.ratio_for_min_vlen64[mode];
+}
+
 } // namespace riscv_vector
diff --git a/gcc/config/riscv/riscv-vector-switch.def b/gcc/config/riscv/riscv-vector-switch.def
index ee8ebd5f1cc..a51f45be487 100644
--- a/gcc/config/riscv/riscv-vector-switch.def
+++ b/gcc/config/riscv/riscv-vector-switch.def
@@ -80,7 +80,8 @@ TODO: FP16 vector needs support of 'zvfh', we don't support it yet.  */
 /* Return 'REQUIREMENT' for machine_mode 'MODE'.
    For example: 'MODE' = VNx64BImode needs TARGET_MIN_VLEN > 32.  */
 #ifndef ENTRY
-#define ENTRY(MODE, REQUIREMENT)
+#define ENTRY(MODE, REQUIREMENT, VLMUL_FOR_MIN_VLEN32, RATIO_FOR_MIN_VLEN32,   \
+	      VLMUL_FOR_MIN_VLEN64, RATIO_FOR_MIN_VLEN64)
 #endif
 /* Flag of FP32 vector.  */
 #ifndef TARGET_VECTOR_FP32
@@ -94,66 +95,68 @@ TODO: FP16 vector needs support of 'zvfh', we don't support it yet.  */
 #endif
 
 /* Mask modes. Disable VNx64BImode when TARGET_MIN_VLEN == 32.  */
-ENTRY (VNx64BI, TARGET_MIN_VLEN > 32)
-ENTRY (VNx32BI, true)
-ENTRY (VNx16BI, true)
-ENTRY (VNx8BI, true)
-ENTRY (VNx4BI, true)
-ENTRY (VNx2BI, true)
-ENTRY (VNx1BI, true)
+ENTRY (VNx64BI, TARGET_MIN_VLEN > 32, LMUL_F8, 64, LMUL_RESERVED, 0)
+ENTRY (VNx32BI, true, LMUL_F4, 32, LMUL_RESERVED, 0)
+ENTRY (VNx16BI, true, LMUL_F2, 16, LMUL_RESERVED, 0)
+ENTRY (VNx8BI, true, LMUL_1, 8, LMUL_RESERVED, 0)
+ENTRY (VNx4BI, true, LMUL_2, 4, LMUL_RESERVED, 0)
+ENTRY (VNx2BI, true, LMUL_4, 2, LMUL_RESERVED, 0)
+ENTRY (VNx1BI, true, LMUL_8, 1, LMUL_RESERVED, 0)
 
 /* SEW = 8. Disable VNx64QImode when TARGET_MIN_VLEN == 32.  */
-ENTRY (VNx64QI, TARGET_MIN_VLEN > 32)
-ENTRY (VNx32QI, true)
-ENTRY (VNx16QI, true)
-ENTRY (VNx8QI, true)
-ENTRY (VNx4QI, true)
-ENTRY (VNx2QI, true)
-ENTRY (VNx1QI, true)
+ENTRY (VNx64QI, TARGET_MIN_VLEN > 32, LMUL_8, 1, LMUL_RESERVED, 0)
+ENTRY (VNx32QI, true, LMUL_8, 1, LMUL_4, 2)
+ENTRY (VNx16QI, true, LMUL_4, 2, LMUL_2, 4)
+ENTRY (VNx8QI, true, LMUL_2, 4, LMUL_1, 8)
+ENTRY (VNx4QI, true, LMUL_1, 8, LMUL_F2, 16)
+ENTRY (VNx2QI, true, LMUL_F2, 16, LMUL_F4, 32)
+ENTRY (VNx1QI, true, LMUL_F4, 32, LMUL_F8, 64)
 
 /* SEW = 16. Disable VNx32HImode when TARGET_MIN_VLEN == 32.  */
-ENTRY (VNx32HI, TARGET_MIN_VLEN > 32)
-ENTRY (VNx16HI, true)
-ENTRY (VNx8HI, true)
-ENTRY (VNx4HI, true)
-ENTRY (VNx2HI, true)
-ENTRY (VNx1HI, true)
+ENTRY (VNx32HI, TARGET_MIN_VLEN > 32, LMUL_8, 2, LMUL_RESERVED, 0)
+ENTRY (VNx16HI, true, LMUL_8, 2, LMUL_4, 4)
+ENTRY (VNx8HI, true, LMUL_4, 4, LMUL_2, 8)
+ENTRY (VNx4HI, true, LMUL_2, 8, LMUL_1, 16)
+ENTRY (VNx2HI, true, LMUL_1, 16, LMUL_F2, 32)
+ENTRY (VNx1HI, true, LMUL_F2, 32, LMUL_F4, 64)
 
 /* TODO:Disable all FP16 vector, enable them when 'zvfh' is supported.  */
-ENTRY (VNx32HF, false)
-ENTRY (VNx16HF, false)
-ENTRY (VNx8HF, false)
-ENTRY (VNx4HF, false)
-ENTRY (VNx2HF, false)
-ENTRY (VNx1HF, false)
+ENTRY (VNx32HF, false, LMUL_8, 2, LMUL_RESERVED, 0)
+ENTRY (VNx16HF, false, LMUL_8, 2, LMUL_4, 4)
+ENTRY (VNx8HF, false, LMUL_4, 4, LMUL_2, 8)
+ENTRY (VNx4HF, false, LMUL_2, 8, LMUL_1, 16)
+ENTRY (VNx2HF, false, LMUL_1, 16, LMUL_F2, 32)
+ENTRY (VNx1HF, false, LMUL_F2, 32, LMUL_F4, 64)
 
 /* SEW = 32. Disable VNx16SImode when TARGET_MIN_VLEN == 32.
    For single-precision floating-point, we need TARGET_VECTOR_FP32 ==
    RVV_ENABLE.  */
-ENTRY (VNx16SI, TARGET_MIN_VLEN > 32)
-ENTRY (VNx8SI, true)
-ENTRY (VNx4SI, true)
-ENTRY (VNx2SI, true)
-ENTRY (VNx1SI, true)
-
-ENTRY (VNx16SF, TARGET_VECTOR_FP32 && (TARGET_MIN_VLEN > 32))
-ENTRY (VNx8SF, TARGET_VECTOR_FP32)
-ENTRY (VNx4SF, TARGET_VECTOR_FP32)
-ENTRY (VNx2SF, TARGET_VECTOR_FP32)
-ENTRY (VNx1SF, TARGET_VECTOR_FP32)
+ENTRY (VNx16SI, TARGET_MIN_VLEN > 32, LMUL_8, 4, LMUL_RESERVED, 0)
+ENTRY (VNx8SI, true, LMUL_8, 4, LMUL_4, 8)
+ENTRY (VNx4SI, true, LMUL_4, 8, LMUL_2, 4)
+ENTRY (VNx2SI, true, LMUL_2, 16, LMUL_1, 2)
+ENTRY (VNx1SI, true, LMUL_1, 32, LMUL_F2, 1)
+
+ENTRY (VNx16SF, TARGET_VECTOR_FP32 && (TARGET_MIN_VLEN > 32), LMUL_8, 4,
+       LMUL_RESERVED, 0)
+ENTRY (VNx8SF, TARGET_VECTOR_FP32, LMUL_8, 4, LMUL_4, 8)
+ENTRY (VNx4SF, TARGET_VECTOR_FP32, LMUL_4, 8, LMUL_2, 4)
+ENTRY (VNx2SF, TARGET_VECTOR_FP32, LMUL_2, 16, LMUL_1, 2)
+ENTRY (VNx1SF, TARGET_VECTOR_FP32, LMUL_1, 32, LMUL_F2, 1)
 
 /* SEW = 64. Enable when TARGET_MIN_VLEN > 32.
    For double-precision floating-point, we need TARGET_VECTOR_FP64 ==
    RVV_ENABLE.  */
-ENTRY (VNx8DI, TARGET_MIN_VLEN > 32)
-ENTRY (VNx4DI, TARGET_MIN_VLEN > 32)
-ENTRY (VNx2DI, TARGET_MIN_VLEN > 32)
-ENTRY (VNx1DI, TARGET_MIN_VLEN > 32)
-
-ENTRY (VNx8DF, TARGET_VECTOR_FP64 && (TARGET_MIN_VLEN > 32))
-ENTRY (VNx4DF, TARGET_VECTOR_FP64)
-ENTRY (VNx2DF, TARGET_VECTOR_FP64)
-ENTRY (VNx1DF, TARGET_VECTOR_FP64)
+ENTRY (VNx8DI, TARGET_MIN_VLEN > 32, LMUL_RESERVED, 0, LMUL_8, 8)
+ENTRY (VNx4DI, TARGET_MIN_VLEN > 32, LMUL_RESERVED, 0, LMUL_4, 16)
+ENTRY (VNx2DI, TARGET_MIN_VLEN > 32, LMUL_RESERVED, 0, LMUL_2, 32)
+ENTRY (VNx1DI, TARGET_MIN_VLEN > 32, LMUL_RESERVED, 0, LMUL_1, 64)
+
+ENTRY (VNx8DF, TARGET_VECTOR_FP64 && (TARGET_MIN_VLEN > 32), LMUL_RESERVED, 0,
+       LMUL_8, 8)
+ENTRY (VNx4DF, TARGET_VECTOR_FP64, LMUL_RESERVED, 0, LMUL_4, 16)
+ENTRY (VNx2DF, TARGET_VECTOR_FP64, LMUL_RESERVED, 0, LMUL_2, 32)
+ENTRY (VNx1DF, TARGET_VECTOR_FP64, LMUL_RESERVED, 0, LMUL_1, 64)
 
 #undef TARGET_VECTOR_FP32
 #undef TARGET_VECTOR_FP64
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index 0267494ae5a..1198a08b13e 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -955,7 +955,7 @@ riscv_valid_lo_sum_p (enum riscv_symbol_type sym_type, machine_mode mode,
 bool
 riscv_v_ext_vector_mode_p (machine_mode mode)
 {
-#define ENTRY(MODE, REQUIREMENT)                                               \
+#define ENTRY(MODE, REQUIREMENT, ...)                                          \
   case MODE##mode:                                                             \
     return REQUIREMENT;
   switch (mode)
diff --git a/gcc/config/riscv/vector.md b/gcc/config/riscv/vector.md
index 0dace449316..3bb87232d3f 100644
--- a/gcc/config/riscv/vector.md
+++ b/gcc/config/riscv/vector.md
@@ -34,6 +34,191 @@
   UNSPEC_VPREDICATE
 ])
 
+(define_constants [
+   (INVALID_ATTRIBUTE            255)
+])
+
+;; True if the type is RVV instructions that include VTYPE
+;; global status register in the use op list.
+;; We known VTYPE has 4 fields: SEW, LMUL, TA, MA.
+;; The instruction need any of VTYPE field is set as true
+;; in this attribute.
+(define_attr "has_vtype_op" "false,true"
+  (cond [(eq_attr "type" "vlde,vste,vldm,vstm,vlds,vsts,\
+			  vldux,vldox,vstux,vstox,vldff,\
+			  vialu,viwalu,vext,vicalu,vshift,vnshift,vicmp,\
+			  vimul,vidiv,viwmul,vimuladd,viwmuladd,vimerge,vimov,\
+			  vsalu,vaalu,vsmul,vsshift,vnclip,\
+			  vfalu,vfwalu,vfmul,vfdiv,vfwmul,vfmuladd,vfwmuladd,vfsqrt,vfrecp,\
+			  vfcmp,vfsgnj,vfclass,vfmerge,vfmov,\
+			  vfcvtitof,vfcvtftoi,vfwcvtitof,vfwcvtftoi,\
+			  vfwcvtftof,vfncvtitof,vfncvtftoi,vfncvtftof,\
+			  vired,viwred,vfred,vfredo,vfwred,vfwredo,\
+			  vmalu,vmpop,vmffs,vmsfs,vmiota,vmidx,vimovvx,vimovxv,vfmovvf,vfmovfv,\
+			  vislide,vislide1,vfslide1,vgather,vcompress")
+	 (const_string "true")]
+	(const_string "false")))
+
+;; True if the type is RVV instructions that include VL
+;; global status register in the use op list.
+;; The instruction need vector length to be specified is set
+;; in this attribute.
+(define_attr "has_vl_op" "false,true"
+  (cond [(eq_attr "type" "vlde,vste,vldm,vstm,vlds,vsts,\
+			  vldux,vldox,vstux,vstox,vldff,\
+			  vialu,viwalu,vext,vicalu,vshift,vnshift,vicmp,\
+			  vimul,vidiv,viwmul,vimuladd,viwmuladd,vimerge,vimov,\
+			  vsalu,vaalu,vsmul,vsshift,vnclip,\
+			  vfalu,vfwalu,vfmul,vfdiv,vfwmul,vfmuladd,vfwmuladd,vfsqrt,vfrecp,\
+			  vfcmp,vfsgnj,vfclass,vfmerge,vfmov,\
+			  vfcvtitof,vfcvtftoi,vfwcvtitof,vfwcvtftoi,\
+			  vfwcvtftof,vfncvtitof,vfncvtftoi,vfncvtftof,\
+			  vired,viwred,vfred,vfredo,vfwred,vfwredo,\
+			  vmalu,vmpop,vmffs,vmsfs,vmiota,vmidx,vimovxv,vfmovfv,\
+			  vislide,vislide1,vfslide1,vgather,vcompress")
+	 (const_string "true")]
+	(const_string "false")))
+
+;; The default SEW of RVV instruction. This attribute doesn't mean the instruction
+;; is necessary to require SEW check for example vlm.v which require ratio to
+;; check. However, we need default value of SEW for vsetvl instruction since there
+;; is no field for ratio in the vsetvl instruction encoding.
+(define_attr "sew" ""
+  (cond [(eq_attr "mode" "VNx1QI,VNx2QI,VNx4QI,VNx8QI,VNx16QI,VNx32QI,VNx64QI,\
+			  VNx1BI,VNx2BI,VNx4BI,VNx8BI,VNx16BI,VNx32BI,VNx64BI")
+	 (const_int 8)
+	 (eq_attr "mode" "VNx1HI,VNx2HI,VNx4HI,VNx8HI,VNx16HI,VNx32HI")
+	 (const_int 16)
+	 (eq_attr "mode" "VNx1SI,VNx2SI,VNx4SI,VNx8SI,VNx16SI,\
+			  VNx1SF,VNx2SF,VNx4SF,VNx8SF,VNx16SF")
+	 (const_int 32)
+	 (eq_attr "mode" "VNx1DI,VNx2DI,VNx4DI,VNx8DI,\
+			  VNx1DF,VNx2DF,VNx4DF,VNx8DF")
+	 (const_int 64)]
+	(const_int INVALID_ATTRIBUTE)))
+
+;; Ditto to LMUL.
+(define_attr "vlmul" ""
+  (cond [(eq_attr "mode" "VNx1QI,VNx1BI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx1QImode)")
+	 (eq_attr "mode" "VNx2QI,VNx2BI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx2QImode)")
+	 (eq_attr "mode" "VNx4QI,VNx4BI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx4QImode)")
+	 (eq_attr "mode" "VNx8QI,VNx8BI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx8QImode)")
+	 (eq_attr "mode" "VNx16QI,VNx16BI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx16QImode)")
+	 (eq_attr "mode" "VNx32QI,VNx32BI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx32QImode)")
+	 (eq_attr "mode" "VNx64QI,VNx64BI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx64QImode)")
+	 (eq_attr "mode" "VNx1HI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx1HImode)")
+	 (eq_attr "mode" "VNx2HI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx2HImode)")
+	 (eq_attr "mode" "VNx4HI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx4HImode)")
+	 (eq_attr "mode" "VNx8HI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx8HImode)")
+	 (eq_attr "mode" "VNx16HI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx16HImode)")
+	 (eq_attr "mode" "VNx32HI")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx32HImode)")
+	 (eq_attr "mode" "VNx1SI,VNx1SF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx1SImode)")
+	 (eq_attr "mode" "VNx2SI,VNx2SF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx2SImode)")
+	 (eq_attr "mode" "VNx4SI,VNx4SF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx4SImode)")
+	 (eq_attr "mode" "VNx8SI,VNx8SF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx8SImode)")
+	 (eq_attr "mode" "VNx16SI,VNx16SF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx16SImode)")
+	 (eq_attr "mode" "VNx1DI,VNx1DF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx1DImode)")
+	 (eq_attr "mode" "VNx2DI,VNx2DF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx2DImode)")
+	 (eq_attr "mode" "VNx4DI,VNx4DF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx4DImode)")
+	 (eq_attr "mode" "VNx8DI,VNx8DF")
+	   (symbol_ref "riscv_vector::get_vlmul(E_VNx8DImode)")]
+	(const_int INVALID_ATTRIBUTE)))
+
+;; It is valid for instruction that require sew/lmul ratio.
+(define_attr "ratio" ""
+  (cond [(eq_attr "type" "vimov,vfmov")
+	   (const_int INVALID_ATTRIBUTE)
+	 (eq_attr "mode" "VNx1QI,VNx1BI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx1QImode)")
+	 (eq_attr "mode" "VNx2QI,VNx2BI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx2QImode)")
+	 (eq_attr "mode" "VNx4QI,VNx4BI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx4QImode)")
+	 (eq_attr "mode" "VNx8QI,VNx8BI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx8QImode)")
+	 (eq_attr "mode" "VNx16QI,VNx16BI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx16QImode)")
+	 (eq_attr "mode" "VNx32QI,VNx32BI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx32QImode)")
+	 (eq_attr "mode" "VNx64QI,VNx64BI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx64QImode)")
+	 (eq_attr "mode" "VNx1HI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx1HImode)")
+	 (eq_attr "mode" "VNx2HI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx2HImode)")
+	 (eq_attr "mode" "VNx4HI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx4HImode)")
+	 (eq_attr "mode" "VNx8HI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx8HImode)")
+	 (eq_attr "mode" "VNx16HI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx16HImode)")
+	 (eq_attr "mode" "VNx32HI")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx32HImode)")
+	 (eq_attr "mode" "VNx1SI,VNx1SF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx1SImode)")
+	 (eq_attr "mode" "VNx2SI,VNx2SF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx2SImode)")
+	 (eq_attr "mode" "VNx4SI,VNx4SF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx4SImode)")
+	 (eq_attr "mode" "VNx8SI,VNx8SF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx8SImode)")
+	 (eq_attr "mode" "VNx16SI,VNx16SF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx16SImode)")
+	 (eq_attr "mode" "VNx1DI,VNx1DF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx1DImode)")
+	 (eq_attr "mode" "VNx2DI,VNx2DF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx2DImode)")
+	 (eq_attr "mode" "VNx4DI,VNx4DF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx4DImode)")
+	 (eq_attr "mode" "VNx8DI,VNx8DF")
+	   (symbol_ref "riscv_vector::get_ratio(E_VNx8DImode)")]
+	(const_int INVALID_ATTRIBUTE)))
+
+;; The index of operand[] to get the merge op.
+(define_attr "merge_op_idx" ""
+	(cond [(eq_attr "type" "vlde,vste,vimov,vfmov,vldm,vstm,vlds,vmalu")
+	 (const_int 2)]
+	(const_int INVALID_ATTRIBUTE)))
+
+;; The index of operand[] to get the avl op.
+(define_attr "vl_op_idx" ""
+	(cond [(eq_attr "type" "vlde,vste,vimov,vfmov,vldm,vstm,vlds,vmalu")
+	 (const_int 4)]
+	(const_int INVALID_ATTRIBUTE)))
+
+;; The index of operand[] to get the tail policy op.
+(define_attr "tail_policy_op_idx" ""
+  (cond [(eq_attr "type" "vlde,vste,vimov,vfmov,vlds")
+	 (const_int 5)]
+	(const_int INVALID_ATTRIBUTE)))
+
+;; The index of operand[] to get the mask policy op.
+(define_attr "mask_policy_op_idx" ""
+  (cond [(eq_attr "type" "vlde,vste,vlds")
+	 (const_int 6)]
+	(const_int INVALID_ATTRIBUTE)))
+
 ;; -----------------------------------------------------------------
 ;; ---- Miscellaneous Operations
 ;; -----------------------------------------------------------------
