On Tue, Jul 26, 2011 at 9:41 PM, H.J. Lu <hongjiu...@intel.com> wrote:
> We should call simplify_gen_subreg for PIC with ptr_mode only if modes
> of x and orig_x are different. OK for trunk?
Let's ask Jakub on this one...
Uros.
> 2011-07-26 H.J. Lu <hongjiu...@intel.com>
>
> PR target/47372
> * config/i386/i386.c (ix86_delegitimize_address): Call
> simplify_gen_subreg for PIC with ptr_mode only if modes of
> x and orig_x are different.
>
> diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
> index 429cd62..9c52aa3 100644
> --- a/gcc/config/i386/i386.c
> +++ b/gcc/config/i386/i386.c
> @@ -12967,9 +12982,10 @@ ix86_delegitimize_address (rtx x)
> || !MEM_P (orig_x))
> return ix86_delegitimize_tls_address (orig_x);
> x = XVECEXP (XEXP (x, 0), 0, 0);
> - if (GET_MODE (orig_x) != Pmode)
> + if (GET_MODE (orig_x) != GET_MODE (x)
> + && GET_MODE (orig_x) != ptr_mode)
> {
> - x = simplify_gen_subreg (GET_MODE (orig_x), x, Pmode, 0);
> + x = simplify_gen_subreg (GET_MODE (orig_x), x, ptr_mode, 0);
> if (x == NULL_RTX)
> return orig_x;
> }
>
