Re: [PATCH v2 19/36] tcg/tci: Add special tci_movi_{i32,i64} opcodes

["Alex Bennée" <alex.bennee@linaro.org>]

Richard Henderson <richard.henderson@linaro.org> writes:

> The normal movi opcodes are going away.  We need something
> for TCI to use internally.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

> ---
>  include/tcg/tcg-opc.h    | 8 ++++++++
>  tcg/tci.c                | 4 ++--
>  tcg/tci/tcg-target.inc.c | 4 ++--
>  3 files changed, 12 insertions(+), 4 deletions(-)
>
> diff --git a/include/tcg/tcg-opc.h b/include/tcg/tcg-opc.h
> index 9288a04946..7dee9b38f7 100644
> --- a/include/tcg/tcg-opc.h
> +++ b/include/tcg/tcg-opc.h
> @@ -268,6 +268,14 @@ DEF(last_generic, 0, 0, 0, TCG_OPF_NOT_PRESENT)
>  #include "tcg-target.opc.h"
>  #endif
>  
> +#ifdef TCG_TARGET_INTERPRETER
> +/* These opcodes are only for use between the tci generator and interpreter. */
> +DEF(tci_movi_i32, 1, 0, 1, TCG_OPF_NOT_PRESENT)
> +#if TCG_TARGET_REG_BITS == 64
> +DEF(tci_movi_i64, 1, 0, 1, TCG_OPF_64BIT | TCG_OPF_NOT_PRESENT)
> +#endif
> +#endif
> +
>  #undef TLADDR_ARGS
>  #undef DATA64_ARGS
>  #undef IMPL
> diff --git a/tcg/tci.c b/tcg/tci.c
> index 46fe9ce63f..a6c1aaf5af 100644
> --- a/tcg/tci.c
> +++ b/tcg/tci.c
> @@ -576,7 +576,7 @@ uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr)
>              t1 = tci_read_r32(regs, &tb_ptr);
>              tci_write_reg32(regs, t0, t1);
>              break;
> -        case INDEX_op_movi_i32:
> +        case INDEX_op_tci_movi_i32:
>              t0 = *tb_ptr++;
>              t1 = tci_read_i32(&tb_ptr);
>              tci_write_reg32(regs, t0, t1);
> @@ -847,7 +847,7 @@ uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr)
>              t1 = tci_read_r64(regs, &tb_ptr);
>              tci_write_reg64(regs, t0, t1);
>              break;
> -        case INDEX_op_movi_i64:
> +        case INDEX_op_tci_movi_i64:
>              t0 = *tb_ptr++;
>              t1 = tci_read_i64(&tb_ptr);
>              tci_write_reg64(regs, t0, t1);
> diff --git a/tcg/tci/tcg-target.inc.c b/tcg/tci/tcg-target.inc.c
> index 992d50cb1e..1f1639df0d 100644
> --- a/tcg/tci/tcg-target.inc.c
> +++ b/tcg/tci/tcg-target.inc.c
> @@ -530,13 +530,13 @@ static void tcg_out_movi(TCGContext *s, TCGType type,
>      uint8_t *old_code_ptr = s->code_ptr;
>      uint32_t arg32 = arg;
>      if (type == TCG_TYPE_I32 || arg == arg32) {
> -        tcg_out_op_t(s, INDEX_op_movi_i32);
> +        tcg_out_op_t(s, INDEX_op_tci_movi_i32);
>          tcg_out_r(s, t0);
>          tcg_out32(s, arg32);
>      } else {
>          tcg_debug_assert(type == TCG_TYPE_I64);
>  #if TCG_TARGET_REG_BITS == 64
> -        tcg_out_op_t(s, INDEX_op_movi_i64);
> +        tcg_out_op_t(s, INDEX_op_tci_movi_i64);
>          tcg_out_r(s, t0);
>          tcg_out64(s, arg);
>  #else


-- 
Alex Bennée