[patch i386]: Disable red zone for w64

[Jakub Jelinek]

On Wed, Jun 11, 2008 at 11:35:03AM +0200, Kai Tietz wrote:
> 2008-06-11  Kai Tietz  <kai.tietz@onevision.com>
> 
>         * config/i386/i386.c (ix86_compute_frame_layout): Disable red zone for
>         w64 abi.
>         (ix86_expand_prologue): Likewise.
>         (ix86_force_to_memory): Likewise.
>         (ix86_free_from_memory): Likewise.
> 
> Tested on x86_64-pc-mingw32 without seeing any regressions.
> Ok for apply to trunk?

This is wrong, you are compile time punishing all i?86 targets.
IMHO you should just target_flags |= MASK_NO_RED_ZONE; in
override_options for the M$ ABI.

	Jakub