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Re: [PATCH 18/22] tcg/riscv: Convert to tcg-target-conset.h


From: Alistair Francis
Subject: Re: [PATCH 18/22] tcg/riscv: Convert to tcg-target-conset.h
Date: Thu, 7 Jan 2021 09:30:36 -0800

On Tue, Dec 22, 2020 at 10:23 PM Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  tcg/riscv/tcg-target-conset.h | 25 +++++++++++
>  tcg/riscv/tcg-target.h        |  1 +
>  tcg/riscv/tcg-target.c.inc    | 83 ++++++++++-------------------------
>  3 files changed, 49 insertions(+), 60 deletions(-)
>  create mode 100644 tcg/riscv/tcg-target-conset.h
>
> diff --git a/tcg/riscv/tcg-target-conset.h b/tcg/riscv/tcg-target-conset.h
> new file mode 100644
> index 0000000000..116dd75db2
> --- /dev/null
> +++ b/tcg/riscv/tcg-target-conset.h
> @@ -0,0 +1,25 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * RISC-V target-specific constaint sets.
> + * Copyright (c) 2020 Linaro
> + */
> +
> +C_O0_I1(r)
> +C_O0_I2(LZ, L)
> +C_O0_I2(rZ, r)
> +C_O0_I2(rZ, rZ)
> +C_O0_I3(LZ, L, L)
> +C_O0_I3(LZ, LZ, L)
> +C_O0_I4(LZ, LZ, L, L)
> +C_O0_I4(rZ, rZ, rZ, rZ)
> +C_O1_I1(r, L)
> +C_O1_I1(r, r)
> +C_O1_I2(r, L, L)
> +C_O1_I2(r, r, ri)
> +C_O1_I2(r, r, rI)
> +C_O1_I2(r, rZ, rN)
> +C_O1_I2(r, rZ, rZ)
> +C_O1_I4(r, rZ, rZ, rZ, rZ)
> +C_O2_I1(r, r, L)
> +C_O2_I2(r, r, L, L)
> +C_O2_I4(r, r, rZ, rZ, rM, rM)
> diff --git a/tcg/riscv/tcg-target.h b/tcg/riscv/tcg-target.h
> index 032439d806..a357962e01 100644
> --- a/tcg/riscv/tcg-target.h
> +++ b/tcg/riscv/tcg-target.h
> @@ -175,5 +175,6 @@ void tb_target_set_jmp_target(uintptr_t, uintptr_t, 
> uintptr_t);
>  #define TCG_TARGET_NEED_POOL_LABELS
>
>  #define TCG_TARGET_HAS_MEMORY_BSWAP 0
> +#define TCG_TARGET_CONSET_H
>
>  #endif
> diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
> index 33047c1951..d222692704 100644
> --- a/tcg/riscv/tcg-target.c.inc
> +++ b/tcg/riscv/tcg-target.c.inc
> @@ -1571,50 +1571,11 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
>      }
>  }
>
> -static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
> +static int tcg_target_op_def(TCGOpcode op)
>  {
> -    static const TCGTargetOpDef r
> -        = { .args_ct_str = { "r" } };
> -    static const TCGTargetOpDef r_r
> -        = { .args_ct_str = { "r", "r" } };
> -    static const TCGTargetOpDef rZ_r
> -        = { .args_ct_str = { "rZ", "r" } };
> -    static const TCGTargetOpDef rZ_rZ
> -        = { .args_ct_str = { "rZ", "rZ" } };
> -    static const TCGTargetOpDef rZ_rZ_rZ_rZ
> -        = { .args_ct_str = { "rZ", "rZ", "rZ", "rZ" } };
> -    static const TCGTargetOpDef r_r_ri
> -        = { .args_ct_str = { "r", "r", "ri" } };
> -    static const TCGTargetOpDef r_r_rI
> -        = { .args_ct_str = { "r", "r", "rI" } };
> -    static const TCGTargetOpDef r_rZ_rN
> -        = { .args_ct_str = { "r", "rZ", "rN" } };
> -    static const TCGTargetOpDef r_rZ_rZ
> -        = { .args_ct_str = { "r", "rZ", "rZ" } };
> -    static const TCGTargetOpDef r_rZ_rZ_rZ_rZ
> -        = { .args_ct_str = { "r", "rZ", "rZ", "rZ", "rZ" } };
> -    static const TCGTargetOpDef r_L
> -        = { .args_ct_str = { "r", "L" } };
> -    static const TCGTargetOpDef r_r_L
> -        = { .args_ct_str = { "r", "r", "L" } };
> -    static const TCGTargetOpDef r_L_L
> -        = { .args_ct_str = { "r", "L", "L" } };
> -    static const TCGTargetOpDef r_r_L_L
> -        = { .args_ct_str = { "r", "r", "L", "L" } };
> -    static const TCGTargetOpDef LZ_L
> -        = { .args_ct_str = { "LZ", "L" } };
> -    static const TCGTargetOpDef LZ_L_L
> -        = { .args_ct_str = { "LZ", "L", "L" } };
> -    static const TCGTargetOpDef LZ_LZ_L
> -        = { .args_ct_str = { "LZ", "LZ", "L" } };
> -    static const TCGTargetOpDef LZ_LZ_L_L
> -        = { .args_ct_str = { "LZ", "LZ", "L", "L" } };
> -    static const TCGTargetOpDef r_r_rZ_rZ_rM_rM
> -        = { .args_ct_str = { "r", "r", "rZ", "rZ", "rM", "rM" } };
> -
>      switch (op) {
>      case INDEX_op_goto_ptr:
> -        return &r;
> +        return C_O0_I1(r);
>
>      case INDEX_op_ld8u_i32:
>      case INDEX_op_ld8s_i32:
> @@ -1646,7 +1607,7 @@ static const TCGTargetOpDef 
> *tcg_target_op_def(TCGOpcode op)
>      case INDEX_op_extrl_i64_i32:
>      case INDEX_op_extrh_i64_i32:
>      case INDEX_op_ext_i32_i64:
> -        return &r_r;
> +        return C_O1_I1(r, r);
>
>      case INDEX_op_st8_i32:
>      case INDEX_op_st16_i32:
> @@ -1655,7 +1616,7 @@ static const TCGTargetOpDef 
> *tcg_target_op_def(TCGOpcode op)
>      case INDEX_op_st16_i64:
>      case INDEX_op_st32_i64:
>      case INDEX_op_st_i64:
> -        return &rZ_r;
> +        return C_O0_I2(rZ, r);
>
>      case INDEX_op_add_i32:
>      case INDEX_op_and_i32:
> @@ -1665,11 +1626,11 @@ static const TCGTargetOpDef 
> *tcg_target_op_def(TCGOpcode op)
>      case INDEX_op_and_i64:
>      case INDEX_op_or_i64:
>      case INDEX_op_xor_i64:
> -        return &r_r_rI;
> +        return C_O1_I2(r, r, rI);
>
>      case INDEX_op_sub_i32:
>      case INDEX_op_sub_i64:
> -        return &r_rZ_rN;
> +        return C_O1_I2(r, rZ, rN);
>
>      case INDEX_op_mul_i32:
>      case INDEX_op_mulsh_i32:
> @@ -1687,7 +1648,7 @@ static const TCGTargetOpDef 
> *tcg_target_op_def(TCGOpcode op)
>      case INDEX_op_rem_i64:
>      case INDEX_op_remu_i64:
>      case INDEX_op_setcond_i64:
> -        return &r_rZ_rZ;
> +        return C_O1_I2(r, rZ, rZ);
>
>      case INDEX_op_shl_i32:
>      case INDEX_op_shr_i32:
> @@ -1695,39 +1656,41 @@ static const TCGTargetOpDef 
> *tcg_target_op_def(TCGOpcode op)
>      case INDEX_op_shl_i64:
>      case INDEX_op_shr_i64:
>      case INDEX_op_sar_i64:
> -        return &r_r_ri;
> +        return C_O1_I2(r, r, ri);
>
>      case INDEX_op_brcond_i32:
>      case INDEX_op_brcond_i64:
> -        return &rZ_rZ;
> +        return C_O0_I2(rZ, rZ);
>
>      case INDEX_op_add2_i32:
>      case INDEX_op_add2_i64:
>      case INDEX_op_sub2_i32:
>      case INDEX_op_sub2_i64:
> -        return &r_r_rZ_rZ_rM_rM;
> +        return C_O2_I4(r, r, rZ, rZ, rM, rM);
>
>      case INDEX_op_brcond2_i32:
> -        return &rZ_rZ_rZ_rZ;
> +        return C_O0_I4(rZ, rZ, rZ, rZ);
>
>      case INDEX_op_setcond2_i32:
> -        return &r_rZ_rZ_rZ_rZ;
> +        return C_O1_I4(r, rZ, rZ, rZ, rZ);
>
>      case INDEX_op_qemu_ld_i32:
> -        return TARGET_LONG_BITS <= TCG_TARGET_REG_BITS ? &r_L : &r_L_L;
> +        return (TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
> +                ? C_O1_I1(r, L) : C_O1_I2(r, L, L));
>      case INDEX_op_qemu_st_i32:
> -        return TARGET_LONG_BITS <= TCG_TARGET_REG_BITS ? &LZ_L : &LZ_L_L;
> +        return (TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
> +                ? C_O0_I2(LZ, L) : C_O0_I3(LZ, L, L));
>      case INDEX_op_qemu_ld_i64:
> -        return TCG_TARGET_REG_BITS == 64 ? &r_L
> -               : TARGET_LONG_BITS <= TCG_TARGET_REG_BITS ? &r_r_L
> -               : &r_r_L_L;
> +        return (TCG_TARGET_REG_BITS == 64 ? C_O1_I1(r, L)
> +               : TARGET_LONG_BITS <= TCG_TARGET_REG_BITS ? C_O2_I1(r, r, L)
> +               : C_O2_I2(r, r, L, L));
>      case INDEX_op_qemu_st_i64:
> -        return TCG_TARGET_REG_BITS == 64 ? &LZ_L
> -               : TARGET_LONG_BITS <= TCG_TARGET_REG_BITS ? &LZ_LZ_L
> -               : &LZ_LZ_L_L;
> +        return (TCG_TARGET_REG_BITS == 64 ? C_O0_I2(LZ, L)
> +               : TARGET_LONG_BITS <= TCG_TARGET_REG_BITS ? C_O0_I3(LZ, LZ, L)
> +               : C_O0_I4(LZ, LZ, L, L));
>
>      default:
> -        return NULL;
> +        g_assert_not_reached();
>      }
>  }
>
> --
> 2.25.1
>
>



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