RISC-V: Add "m_" prefix for private member

From: Juzhe-Zhong <juzhe.zhong@rivai.ai>

Since the current framework is hard to maintain and
hard to be used in the future possible auto-vectorization patterns.

We will need to keep adding more helpers and arguments during the 
auto-vectorization supporting. We should refactor the framework
now for the future use since the we don't support too much auto-vectorization
patterns for now.

Start with this simple patch, this patch is adding "m_" prefix for private the members.

gcc/ChangeLog:

        * config/riscv/riscv-v.cc: Add "m_" prefix.

---
 gcc/config/riscv/riscv-v.cc | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

LGTM

On Mon, May 22, 2023 at 8:10 PM <juzhe.zhong@rivai.ai> wrote:
>
> From: Juzhe-Zhong <juzhe.zhong@rivai.ai>
>
> Since the current framework is hard to maintain and
> hard to be used in the future possible auto-vectorization patterns.
>
> We will need to keep adding more helpers and arguments during the
> auto-vectorization supporting. We should refactor the framework
> now for the future use since the we don't support too much auto-vectorization
> patterns for now.
>
> Start with this simple patch, this patch is adding "m_" prefix for private the members.
>
> gcc/ChangeLog:
>
>         * config/riscv/riscv-v.cc: Add "m_" prefix.
>
> ---
>  gcc/config/riscv/riscv-v.cc | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
> index d65e7300303..e0b19bc1754 100644
> --- a/gcc/config/riscv/riscv-v.cc
> +++ b/gcc/config/riscv/riscv-v.cc
> @@ -66,7 +66,7 @@ const_vlmax_p (machine_mode mode)
>  template <int MAX_OPERANDS> class insn_expander
>  {
>  public:
> -  insn_expander () : m_opno (0), has_dest(false) {}
> +  insn_expander () : m_opno (0), m_has_dest_p(false) {}
>    void add_output_operand (rtx x, machine_mode mode)
>    {
>      create_output_operand (&m_ops[m_opno++], x, mode);
> @@ -99,41 +99,41 @@ public:
>
>    void set_dest_and_mask (rtx mask, rtx dest, machine_mode mask_mode)
>    {
> -    dest_mode = GET_MODE (dest);
> -    has_dest = true;
> +    m_dest_mode = GET_MODE (dest);
> +    m_has_dest_p = true;
>
> -    add_output_operand (dest, dest_mode);
> +    add_output_operand (dest, m_dest_mode);
>
>      if (mask)
>        add_input_operand (mask, GET_MODE (mask));
>      else
>        add_all_one_mask_operand (mask_mode);
>
> -    add_vundef_operand (dest_mode);
> +    add_vundef_operand (m_dest_mode);
>    }
>
>    void set_len_and_policy (rtx len, bool force_vlmax = false)
>      {
>        bool vlmax_p = force_vlmax || !len;
> -      gcc_assert (has_dest);
> +      gcc_assert (m_has_dest_p);
>
> -      if (vlmax_p && const_vlmax_p (dest_mode))
> +      if (vlmax_p && const_vlmax_p (m_dest_mode))
>         {
>           /* Optimize VLS-VLMAX code gen, we can use vsetivli instead of the
>              vsetvli to obtain the value of vlmax.  */
> -         poly_uint64 nunits = GET_MODE_NUNITS (dest_mode);
> +         poly_uint64 nunits = GET_MODE_NUNITS (m_dest_mode);
>           len = gen_int_mode (nunits, Pmode);
>           vlmax_p = false; /* It has became NONVLMAX now.  */
>         }
>        else if (!len)
>         {
>           len = gen_reg_rtx (Pmode);
> -         emit_vlmax_vsetvl (dest_mode, len);
> +         emit_vlmax_vsetvl (m_dest_mode, len);
>         }
>
>        add_input_operand (len, Pmode);
>
> -      if (GET_MODE_CLASS (dest_mode) != MODE_VECTOR_BOOL)
> +      if (GET_MODE_CLASS (m_dest_mode) != MODE_VECTOR_BOOL)
>         add_policy_operand (get_prefer_tail_policy (), get_prefer_mask_policy ());
>
>        add_avl_type_operand (vlmax_p ? avl_type::VLMAX : avl_type::NONVLMAX);
> @@ -152,8 +152,8 @@ public:
>
>  private:
>    int m_opno;
> -  bool has_dest;
> -  machine_mode dest_mode;
> +  bool m_has_dest_p;
> +  machine_mode m_dest_mode;
>    expand_operand m_ops[MAX_OPERANDS];
>  };
>
> --
> 2.36.3
>

Committed, thanks Kito.

Pan

-----Original Message-----
From: Gcc-patches <gcc-patches-bounces+pan2.li=intel.com@gcc.gnu.org> On Behalf Of Kito Cheng via Gcc-patches
Sent: Monday, May 22, 2023 9:49 PM
To: juzhe.zhong@rivai.ai
Cc: gcc-patches@gcc.gnu.org; kito.cheng@gmail.com; palmer@dabbelt.com; palmer@rivosinc.com; jeffreyalaw@gmail.com; rdapp.gcc@gmail.com
Subject: Re: [PATCH] RISC-V: Add "m_" prefix for private member

LGTM

On Mon, May 22, 2023 at 8:10 PM <juzhe.zhong@rivai.ai> wrote:
>
> From: Juzhe-Zhong <juzhe.zhong@rivai.ai>
>
> Since the current framework is hard to maintain and hard to be used in 
> the future possible auto-vectorization patterns.
>
> We will need to keep adding more helpers and arguments during the 
> auto-vectorization supporting. We should refactor the framework now 
> for the future use since the we don't support too much 
> auto-vectorization patterns for now.
>
> Start with this simple patch, this patch is adding "m_" prefix for private the members.
>
> gcc/ChangeLog:
>
>         * config/riscv/riscv-v.cc: Add "m_" prefix.
>
> ---
>  gcc/config/riscv/riscv-v.cc | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc 
> index d65e7300303..e0b19bc1754 100644
> --- a/gcc/config/riscv/riscv-v.cc
> +++ b/gcc/config/riscv/riscv-v.cc
> @@ -66,7 +66,7 @@ const_vlmax_p (machine_mode mode)  template <int 
> MAX_OPERANDS> class insn_expander  {
>  public:
> -  insn_expander () : m_opno (0), has_dest(false) {}
> +  insn_expander () : m_opno (0), m_has_dest_p(false) {}
>    void add_output_operand (rtx x, machine_mode mode)
>    {
>      create_output_operand (&m_ops[m_opno++], x, mode); @@ -99,41 
> +99,41 @@ public:
>
>    void set_dest_and_mask (rtx mask, rtx dest, machine_mode mask_mode)
>    {
> -    dest_mode = GET_MODE (dest);
> -    has_dest = true;
> +    m_dest_mode = GET_MODE (dest);
> +    m_has_dest_p = true;
>
> -    add_output_operand (dest, dest_mode);
> +    add_output_operand (dest, m_dest_mode);
>
>      if (mask)
>        add_input_operand (mask, GET_MODE (mask));
>      else
>        add_all_one_mask_operand (mask_mode);
>
> -    add_vundef_operand (dest_mode);
> +    add_vundef_operand (m_dest_mode);
>    }
>
>    void set_len_and_policy (rtx len, bool force_vlmax = false)
>      {
>        bool vlmax_p = force_vlmax || !len;
> -      gcc_assert (has_dest);
> +      gcc_assert (m_has_dest_p);
>
> -      if (vlmax_p && const_vlmax_p (dest_mode))
> +      if (vlmax_p && const_vlmax_p (m_dest_mode))
>         {
>           /* Optimize VLS-VLMAX code gen, we can use vsetivli instead of the
>              vsetvli to obtain the value of vlmax.  */
> -         poly_uint64 nunits = GET_MODE_NUNITS (dest_mode);
> +         poly_uint64 nunits = GET_MODE_NUNITS (m_dest_mode);
>           len = gen_int_mode (nunits, Pmode);
>           vlmax_p = false; /* It has became NONVLMAX now.  */
>         }
>        else if (!len)
>         {
>           len = gen_reg_rtx (Pmode);
> -         emit_vlmax_vsetvl (dest_mode, len);
> +         emit_vlmax_vsetvl (m_dest_mode, len);
>         }
>
>        add_input_operand (len, Pmode);
>
> -      if (GET_MODE_CLASS (dest_mode) != MODE_VECTOR_BOOL)
> +      if (GET_MODE_CLASS (m_dest_mode) != MODE_VECTOR_BOOL)
>         add_policy_operand (get_prefer_tail_policy (), 
> get_prefer_mask_policy ());
>
>        add_avl_type_operand (vlmax_p ? avl_type::VLMAX : 
> avl_type::NONVLMAX); @@ -152,8 +152,8 @@ public:
>
>  private:
>    int m_opno;
> -  bool has_dest;
> -  machine_mode dest_mode;
> +  bool m_has_dest_p;
> +  machine_mode m_dest_mode;
>    expand_operand m_ops[MAX_OPERANDS];  };
>
> --
> 2.36.3
>