Re: [PATCH] RISC-V: THEAD: Fix improper immediate value for MODIFY_DISP instruction on 32-bit systems.

[Andrew Pinski <pinskia@gmail.com>]

On Mon, Jan 29, 2024 at 1:21 AM Jin Ma <jinma@linux.alibaba.com> wrote:
>
> When using  '%ld' to print 'long long int' variable, 'fprintf' will
> produce messy output on a 32-bit system, in an incorrect instruction
> being generated, such as 'th.lwib a1,(a0),-16,4294967295'. And the
> following error occurred during compilation:
>
> Assembler messages:
> Error: improper immediate value (18446744073709551615)
>
> gcc/ChangeLog:
>
>         * config/riscv/thead.cc (th_print_operand_address): Change %ld
>         to %lld.
> ---
>  gcc/config/riscv/thead.cc | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/config/riscv/thead.cc b/gcc/config/riscv/thead.cc
> index 2955bc5f8a9..9ee6444b627 100644
> --- a/gcc/config/riscv/thead.cc
> +++ b/gcc/config/riscv/thead.cc
> @@ -1141,7 +1141,7 @@ th_print_operand_address (FILE *file, machine_mode mode, rtx x)
>        return true;
>
>      case ADDRESS_REG_WB:
> -      fprintf (file, "(%s),%ld,%u", reg_names[REGNO (addr.reg)],
> +      fprintf (file, "(%s),%lld,%u", reg_names[REGNO (addr.reg)],
>                INTVAL (addr.offset) >> addr.shift, addr.shift);


This is wrong, you should instead use HOST_WIDE_INT_PRINT_DEC or
HOST_WIDE_INT_PRINT_UNSIGNED.

Thanks,
Andrew Pinski

>         return true;
>
> --
> 2.17.1
>