Committed

On Wed, Apr 26, 2023 at 12:48 PM <juzhe.zh...@rivai.ai> wrote:
>
> From: Ju-Zhe Zhong <juzhe.zh...@rivai.ai>
>
> gcc/ChangeLog:
>
>         * config/riscv/vector.md: Refine vmadc/vmsbc RA constraint.
>
> gcc/testsuite/ChangeLog:
>
>         * gcc.target/riscv/rvv/base/narrow_constraint-13.c: New test.
>         * gcc.target/riscv/rvv/base/narrow_constraint-14.c: New test.
>         * gcc.target/riscv/rvv/base/narrow_constraint-15.c: New test.
>         * gcc.target/riscv/rvv/base/narrow_constraint-16.c: New test.
>
> ---
>  gcc/config/riscv/vector.md                    | 176 +++++++++---------
>  .../riscv/rvv/base/narrow_constraint-13.c     | 133 +++++++++++++
>  .../riscv/rvv/base/narrow_constraint-14.c     | 133 +++++++++++++
>  .../riscv/rvv/base/narrow_constraint-15.c     | 127 +++++++++++++
>  .../riscv/rvv/base/narrow_constraint-16.c     | 127 +++++++++++++
>  5 files changed, 608 insertions(+), 88 deletions(-)
>  create mode 100644 
> gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-13.c
>  create mode 100644 
> gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-14.c
>  create mode 100644 
> gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-15.c
>  create mode 100644 
> gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-16.c
>
> diff --git a/gcc/config/riscv/vector.md b/gcc/config/riscv/vector.md
> index eb8e0b44e58..b3d23441679 100644
> --- a/gcc/config/riscv/vector.md
> +++ b/gcc/config/riscv/vector.md
> @@ -2450,15 +2450,15 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[7])"))])
>
>  (define_insn "@pred_madc<mode>"
> -  [(set (match_operand:<VM> 0 "register_operand"        "=&vr, &vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr, &vr")
>         (unspec:<VM>
>            [(plus:VI
> -            (match_operand:VI 1 "register_operand"     "  vr,  vr")
> -            (match_operand:VI 2 "vector_arith_operand" "  vr,  vi"))
> -           (match_operand:<VM> 3 "register_operand"    "  vm,  vm")
> +            (match_operand:VI 1 "register_operand"     "  %0,  vr,  vr")
> +            (match_operand:VI 2 "vector_arith_operand" "vrvi,  vr,  vi"))
> +           (match_operand:<VM> 3 "register_operand"    "  vm,  vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand" "  rK,  rK")
> -              (match_operand 5 "const_int_operand"     "   i,   i")
> +             [(match_operand 4 "vector_length_operand" "  rK,  rK,  rK")
> +              (match_operand 5 "const_int_operand"     "   i,   i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMADC))]
>    "TARGET_VECTOR"
> @@ -2469,15 +2469,15 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[5])"))])
>
>  (define_insn "@pred_msbc<mode>"
> -  [(set (match_operand:<VM> 0 "register_operand"        "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"        "=vr, vr, &vr")
>         (unspec:<VM>
>            [(minus:VI
> -            (match_operand:VI 1 "register_operand"     "  vr")
> -            (match_operand:VI 2 "register_operand"     "  vr"))
> -           (match_operand:<VM> 3 "register_operand"    "  vm")
> +            (match_operand:VI 1 "register_operand"     "  0, vr,  vr")
> +            (match_operand:VI 2 "register_operand"     " vr,  0,  vr"))
> +           (match_operand:<VM> 3 "register_operand"    " vm, vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand" "  rK")
> -              (match_operand 5 "const_int_operand"     "   i")
> +             [(match_operand 4 "vector_length_operand" " rK, rK,  rK")
> +              (match_operand 5 "const_int_operand"     "  i,  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMSBC))]
>    "TARGET_VECTOR"
> @@ -2488,16 +2488,16 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[5])"))])
>
>  (define_insn "@pred_madc<mode>_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(plus:VI_QHS
>              (vec_duplicate:VI_QHS
> -              (match_operand:<VEL> 2 "register_operand" "   r"))
> -            (match_operand:VI_QHS 1 "register_operand"  "  vr"))
> -           (match_operand:<VM> 3 "register_operand"     "  vm")
> +              (match_operand:<VEL> 2 "register_operand" "  r,   r"))
> +            (match_operand:VI_QHS 1 "register_operand"  "  0,  vr"))
> +           (match_operand:<VM> 3 "register_operand"     " vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand"  "  rK")
> -              (match_operand 5 "const_int_operand"      "   i")
> +             [(match_operand 4 "vector_length_operand"  " rK,  rK")
> +              (match_operand 5 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMADC))]
>    "TARGET_VECTOR"
> @@ -2508,16 +2508,16 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[5])"))])
>
>  (define_insn "@pred_msbc<mode>_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(minus:VI_QHS
>              (vec_duplicate:VI_QHS
> -              (match_operand:<VEL> 2 "reg_or_0_operand" "  rJ"))
> -            (match_operand:VI_QHS 1 "register_operand"  "  vr"))
> -           (match_operand:<VM> 3 "register_operand"     "  vm")
> +              (match_operand:<VEL> 2 "reg_or_0_operand" " rJ,  rJ"))
> +            (match_operand:VI_QHS 1 "register_operand"  "  0,  vr"))
> +           (match_operand:<VM> 3 "register_operand"     " vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand"  "  rK")
> -              (match_operand 5 "const_int_operand"      "   i")
> +             [(match_operand 4 "vector_length_operand"  " rK,  rK")
> +              (match_operand 5 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMSBC))]
>    "TARGET_VECTOR"
> @@ -2557,16 +2557,16 @@
>  })
>
>  (define_insn "*pred_madc<mode>_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(plus:VI_D
>              (vec_duplicate:VI_D
> -              (match_operand:<VEL> 2 "reg_or_0_operand" "  rJ"))
> -            (match_operand:VI_D 1 "register_operand"    "  vr"))
> -           (match_operand:<VM> 3 "register_operand"     "  vm")
> +              (match_operand:<VEL> 2 "reg_or_0_operand" " rJ,  rJ"))
> +            (match_operand:VI_D 1 "register_operand"    "  0,  vr"))
> +           (match_operand:<VM> 3 "register_operand"     " vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand"  "  rK")
> -              (match_operand 5 "const_int_operand"      "   i")
> +             [(match_operand 4 "vector_length_operand"  " rK,  rK")
> +              (match_operand 5 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMADC))]
>    "TARGET_VECTOR"
> @@ -2577,17 +2577,17 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[5])"))])
>
>  (define_insn "*pred_madc<mode>_extended_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"             "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"             "=vr, &vr")
>         (unspec:<VM>
>            [(plus:VI_D
>              (vec_duplicate:VI_D
>                (sign_extend:<VEL>
> -                (match_operand:<VSUBEL> 2 "reg_or_0_operand" "  rJ")))
> -            (match_operand:VI_D 1 "register_operand"         "  vr"))
> -           (match_operand:<VM> 3 "register_operand"          "  vm")
> +                (match_operand:<VSUBEL> 2 "reg_or_0_operand" " rJ,  rJ")))
> +            (match_operand:VI_D 1 "register_operand"         "  0,  vr"))
> +           (match_operand:<VM> 3 "register_operand"          " vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand"       "  rK")
> -              (match_operand 5 "const_int_operand"           "   i")
> +             [(match_operand 4 "vector_length_operand"       " rK,  rK")
> +              (match_operand 5 "const_int_operand"           "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMADC))]
>    "TARGET_VECTOR"
> @@ -2627,16 +2627,16 @@
>  })
>
>  (define_insn "*pred_msbc<mode>_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(minus:VI_D
>              (vec_duplicate:VI_D
> -              (match_operand:<VEL> 2 "reg_or_0_operand" "  rJ"))
> -            (match_operand:VI_D 1 "register_operand"    "  vr"))
> -           (match_operand:<VM> 3 "register_operand"     "  vm")
> +              (match_operand:<VEL> 2 "reg_or_0_operand" " rJ,  rJ"))
> +            (match_operand:VI_D 1 "register_operand"    "  0,  vr"))
> +           (match_operand:<VM> 3 "register_operand"     " vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand"  "  rK")
> -              (match_operand 5 "const_int_operand"      "   i")
> +             [(match_operand 4 "vector_length_operand"  " rK,  rK")
> +              (match_operand 5 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMSBC))]
>    "TARGET_VECTOR"
> @@ -2647,17 +2647,17 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[5])"))])
>
>  (define_insn "*pred_msbc<mode>_extended_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"             "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"              "=vr, &vr")
>         (unspec:<VM>
>            [(minus:VI_D
>              (vec_duplicate:VI_D
>                (sign_extend:<VEL>
> -                (match_operand:<VSUBEL> 2 "reg_or_0_operand" "  rJ")))
> -            (match_operand:VI_D 1 "register_operand"         "  vr"))
> -           (match_operand:<VM> 3 "register_operand"          "  vm")
> +                (match_operand:<VSUBEL> 2 "reg_or_0_operand" " rJ,  rJ")))
> +            (match_operand:VI_D 1 "register_operand"         "  0,  vr"))
> +           (match_operand:<VM> 3 "register_operand"          " vm,  vm")
>             (unspec:<VM>
> -             [(match_operand 4 "vector_length_operand"       "  rK")
> -              (match_operand 5 "const_int_operand"           "   i")
> +             [(match_operand 4 "vector_length_operand"       " rK,  rK")
> +              (match_operand 5 "const_int_operand"           "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_VMSBC))]
>    "TARGET_VECTOR"
> @@ -2668,14 +2668,14 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[5])"))])
>
>  (define_insn "@pred_madc<mode>_overflow"
> -  [(set (match_operand:<VM> 0 "register_operand"        "=&vr, &vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr, &vr")
>         (unspec:<VM>
>            [(plus:VI
> -            (match_operand:VI 1 "register_operand"     "  vr,  vr")
> -            (match_operand:VI 2 "vector_arith_operand" "  vr,  vi"))
> +            (match_operand:VI 1 "register_operand"     "  %0,  vr,  vr")
> +            (match_operand:VI 2 "vector_arith_operand" "vrvi,  vr,  vi"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand" "  rK,  rK")
> -              (match_operand 4 "const_int_operand"     "   i,   i")
> +             [(match_operand 3 "vector_length_operand" "  rK,  rK,  rK")
> +              (match_operand 4 "const_int_operand"     "   i,   i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> @@ -2686,14 +2686,14 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[4])"))])
>
>  (define_insn "@pred_msbc<mode>_overflow"
> -  [(set (match_operand:<VM> 0 "register_operand"        "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, vr, &vr, &vr")
>         (unspec:<VM>
>            [(minus:VI
> -            (match_operand:VI 1 "register_operand"     "  vr")
> -            (match_operand:VI 2 "register_operand"     "  vr"))
> +            (match_operand:VI 1 "register_operand"     "   0,  vr,  vr,  vr")
> +            (match_operand:VI 2 "register_operand"     "  vr,   0,  vr,  
> vi"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand" "  rK")
> -              (match_operand 4 "const_int_operand"     "   i")
> +             [(match_operand 3 "vector_length_operand" "  rK,  rK,  rK,  rK")
> +              (match_operand 4 "const_int_operand"     "   i,   i,   i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> @@ -2704,15 +2704,15 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[4])"))])
>
>  (define_insn "@pred_madc<mode>_overflow_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(plus:VI_QHS
>              (vec_duplicate:VI_QHS
> -              (match_operand:<VEL> 2 "reg_or_0_operand" "  rJ"))
> -            (match_operand:VI_QHS 1 "register_operand"  "  vr"))
> +              (match_operand:<VEL> 2 "reg_or_0_operand" " rJ,  rJ"))
> +            (match_operand:VI_QHS 1 "register_operand"  "  0,  vr"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand"  "  rK")
> -              (match_operand 4 "const_int_operand"      "   i")
> +             [(match_operand 3 "vector_length_operand"  " rK,  rK")
> +              (match_operand 4 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> @@ -2723,15 +2723,15 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[4])"))])
>
>  (define_insn "@pred_msbc<mode>_overflow_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(minus:VI_QHS
>              (vec_duplicate:VI_QHS
> -              (match_operand:<VEL> 2 "reg_or_0_operand" "  rJ"))
> -            (match_operand:VI_QHS 1 "register_operand"  "  vr"))
> +              (match_operand:<VEL> 2 "reg_or_0_operand" " rJ,  rJ"))
> +            (match_operand:VI_QHS 1 "register_operand"  "  0,  vr"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand"  "  rK")
> -              (match_operand 4 "const_int_operand"      "   i")
> +             [(match_operand 3 "vector_length_operand"  " rK,  rK")
> +              (match_operand 4 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> @@ -2770,15 +2770,15 @@
>  })
>
>  (define_insn "*pred_madc<mode>_overflow_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(plus:VI_D
>              (vec_duplicate:VI_D
> -              (match_operand:<VEL> 2 "reg_or_0_operand" "  rJ"))
> -            (match_operand:VI_D 1 "register_operand"    "  vr"))
> +              (match_operand:<VEL> 2 "reg_or_0_operand" " rJ,  rJ"))
> +            (match_operand:VI_D 1 "register_operand"    "  0,  vr"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand"  "  rK")
> -              (match_operand 4 "const_int_operand"      "   i")
> +             [(match_operand 3 "vector_length_operand"  " rK,  rK")
> +              (match_operand 4 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> @@ -2789,16 +2789,16 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[4])"))])
>
>  (define_insn "*pred_madc<mode>_overflow_extended_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"             "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"             "=vr, &vr")
>         (unspec:<VM>
>            [(plus:VI_D
>              (vec_duplicate:VI_D
>                (sign_extend:<VEL>
> -                (match_operand:<VSUBEL> 2 "reg_or_0_operand" "  rJ")))
> -            (match_operand:VI_D 1 "register_operand"         "  vr"))
> +                (match_operand:<VSUBEL> 2 "reg_or_0_operand" " rJ,  rJ")))
> +            (match_operand:VI_D 1 "register_operand"         "  0,  vr"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand"       "  rK")
> -              (match_operand 4 "const_int_operand"           "   i")
> +             [(match_operand 3 "vector_length_operand"       " rK,  rK")
> +              (match_operand 4 "const_int_operand"           "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> @@ -2837,15 +2837,15 @@
>  })
>
>  (define_insn "*pred_msbc<mode>_overflow_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"         "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"         "=vr, &vr")
>         (unspec:<VM>
>            [(minus:VI_D
>              (vec_duplicate:VI_D
> -              (match_operand:<VEL> 2 "reg_or_0_operand" "  rJ"))
> -            (match_operand:VI_D 1 "register_operand"    "  vr"))
> +              (match_operand:<VEL> 2 "reg_or_0_operand" " rJ,  rJ"))
> +            (match_operand:VI_D 1 "register_operand"    "  0,  vr"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand"  "  rK")
> -              (match_operand 4 "const_int_operand"      "   i")
> +             [(match_operand 3 "vector_length_operand"  " rK,  rK")
> +              (match_operand 4 "const_int_operand"      "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> @@ -2856,16 +2856,16 @@
>     (set (attr "avl_type") (symbol_ref "INTVAL (operands[4])"))])
>
>  (define_insn "*pred_msbc<mode>_overflow_extended_scalar"
> -  [(set (match_operand:<VM> 0 "register_operand"             "=&vr")
> +  [(set (match_operand:<VM> 0 "register_operand"             "=vr, &vr")
>         (unspec:<VM>
>            [(minus:VI_D
>              (vec_duplicate:VI_D
>                (sign_extend:<VEL>
> -                (match_operand:<VSUBEL> 2 "reg_or_0_operand" "  rJ")))
> -            (match_operand:VI_D 1 "register_operand"         "  vr"))
> +                (match_operand:<VSUBEL> 2 "reg_or_0_operand" " rJ,  rJ")))
> +            (match_operand:VI_D 1 "register_operand"         "  0,  vr"))
>             (unspec:<VM>
> -             [(match_operand 3 "vector_length_operand"       "  rK")
> -              (match_operand 4 "const_int_operand"           "   i")
> +             [(match_operand 3 "vector_length_operand"      " rK,  rK")
> +              (match_operand 4 "const_int_operand"          "  i,   i")
>                (reg:SI VL_REGNUM)
>                (reg:SI VTYPE_REGNUM)] UNSPEC_VPREDICATE)] UNSPEC_OVERFLOW))]
>    "TARGET_VECTOR"
> diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-13.c 
> b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-13.c
> new file mode 100644
> index 00000000000..521af15ee5e
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-13.c
> @@ -0,0 +1,133 @@
> +/* { dg-do compile } */
> +/* { dg-options "-march=rv32gcv -mabi=ilp32d -O3" } */
> +
> +#include "riscv_vector.h"
> +
> +void f0 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    vbool8_t m = __riscv_vlm_v_b8 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    m = __riscv_vmadc_vvm_i16m2_b8 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f1 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    vbool8_t m = __riscv_vlm_v_b8 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    m = __riscv_vmadc_vvm_i16m2_b8 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f2 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    vbool8_t m = __riscv_vlm_v_b8 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    m = __riscv_vmadc_vvm_i16m2_b8 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f3 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    vbool32_t m = __riscv_vlm_v_b32 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    m = __riscv_vmadc_vvm_i16mf2_b32 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f4 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    vbool32_t m = __riscv_vlm_v_b32 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    m = __riscv_vmadc_vvm_i16mf2_b32 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f5 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    vbool32_t m = __riscv_vlm_v_b32 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    m = __riscv_vmadc_vvm_i16mf2_b32 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v30", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +/* { dg-final { scan-assembler-not {vmv} } } */
> +/* { dg-final { scan-assembler-not {csrr} } } */
> diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-14.c 
> b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-14.c
> new file mode 100644
> index 00000000000..66a8791aeb2
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-14.c
> @@ -0,0 +1,133 @@
> +/* { dg-do compile } */
> +/* { dg-options "-march=rv32gcv -mabi=ilp32d -O3" } */
> +
> +#include "riscv_vector.h"
> +
> +void f0 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    vbool8_t m = __riscv_vlm_v_b8 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    m = __riscv_vmsbc_vvm_i16m2_b8 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f1 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    vbool8_t m = __riscv_vlm_v_b8 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    m = __riscv_vmsbc_vvm_i16m2_b8 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f2 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    vbool8_t m = __riscv_vlm_v_b8 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    m = __riscv_vmsbc_vvm_i16m2_b8 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f3 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    vbool32_t m = __riscv_vlm_v_b32 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    m = __riscv_vmsbc_vvm_i16mf2_b32 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f4 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    vbool32_t m = __riscv_vlm_v_b32 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    m = __riscv_vmsbc_vvm_i16mf2_b32 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f5 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    vbool32_t m = __riscv_vlm_v_b32 ((uint8_t *)(base + 200), vl);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    m = __riscv_vmsbc_vvm_i16mf2_b32 (v0, v1, m, 4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v30", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +/* { dg-final { scan-assembler-not {vmv} } } */
> +/* { dg-final { scan-assembler-not {csrr} } } */
> diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-15.c 
> b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-15.c
> new file mode 100644
> index 00000000000..b3add7b7bc7
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-15.c
> @@ -0,0 +1,127 @@
> +/* { dg-do compile } */
> +/* { dg-options "-march=rv32gcv -mabi=ilp32d -O3" } */
> +
> +#include "riscv_vector.h"
> +
> +void f0 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    vbool8_t m = __riscv_vmadc_vv_i16m2_b8 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f1 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    vbool8_t m = __riscv_vmadc_vv_i16m2_b8 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f2 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    vbool8_t m = __riscv_vmadc_vv_i16m2_b8 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f3 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    vbool32_t m = __riscv_vmadc_vv_i16mf2_b32 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f4 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    vbool32_t m = __riscv_vmadc_vv_i16mf2_b32 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f5 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    vbool32_t m = __riscv_vmadc_vv_i16mf2_b32 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v30", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +/* { dg-final { scan-assembler-not {vmv} } } */
> +/* { dg-final { scan-assembler-not {csrr} } } */
> diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-16.c 
> b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-16.c
> new file mode 100644
> index 00000000000..468471c438a
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/riscv/rvv/base/narrow_constraint-16.c
> @@ -0,0 +1,127 @@
> +/* { dg-do compile } */
> +/* { dg-options "-march=rv32gcv -mabi=ilp32d -O3" } */
> +
> +#include "riscv_vector.h"
> +
> +void f0 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    vbool8_t m = __riscv_vmsbc_vv_i16m2_b8 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f1 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    vbool8_t m = __riscv_vmsbc_vv_i16m2_b8 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f2 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16m2_t v0 = __riscv_vle16_v_i16m2 (base, vl);
> +    vint16m2_t v1 = __riscv_vle16_v_i16m2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27");
> +
> +    vbool8_t m = __riscv_vmsbc_vv_i16m2_b8 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30", "v31");
> +
> +    __riscv_vsm_v_b8 (out,m,vl);
> +}
> +
> +void f3 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    vbool32_t m = __riscv_vmsbc_vv_i16mf2_b32 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v30");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f4 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    vbool32_t m = __riscv_vmsbc_vv_i16mf2_b32 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +void f5 (int16_t *base,int8_t *out,size_t vl)
> +{
> +    vint16mf2_t v0 = __riscv_vle16_v_i16mf2 (base, vl);
> +    vint16mf2_t v1 = __riscv_vle16_v_i16mf2 ((int16_t *)(base + 100), vl);
> +    asm volatile("#" ::
> +                : "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v29");
> +
> +    vbool32_t m = __riscv_vmsbc_vv_i16mf2_b32 (v0, v1,4);
> +    asm volatile("#" ::
> +                : "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9",
> +                  "v10", "v11", "v12", "v13", "v14", "v15", "v16", "v17",
> +                  "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25",
> +                  "v26", "v27", "v28", "v30", "v31");
> +
> +    __riscv_vsm_v_b32 (out,m,vl);
> +}
> +
> +/* { dg-final { scan-assembler-not {vmv} } } */
> +/* { dg-final { scan-assembler-not {csrr} } } */
> --
> 2.36.3
>

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