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Re: [windows][rft] regparm vs stack probe fix

From: Danny Smith <dannysmith at clear dot net dot nz>
To: Richard Henderson <rth at redhat dot com>, Christopher Faylor <cgf at redhat dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Mon, 20 Oct 2003 10:20:35 +0100
Subject: Re: [windows][rft] regparm vs stack probe fix
References: <20031020070041.GD3658@redhat.com>
Reply-to: Danny Smith <dannysmith at users dot sourceforge dot net>

----- Original Message -----
From: "Richard Henderson"
> It would appear that we can just save and restore eax around the
> stack probe routine.  This looks good to my eye, but I don't have
> things set up to do testing on windows anywhere.
>
>
> r~
>
>
>
> * i386.c (ix86_eax_live_at_start_p): New.
> (ix86_expand_prologue): Save and restore eax around stack probe
> if it's live.
>


Yes, this seems to do it.  I've tested with attached  testcase using
gcc -O[1-3],

Bootstrap in progress on mingw32.

Thanks for following this up.

Danny

Attachment: stack_probe.c
Description: Text document

Follow-Ups:
- Re: [windows][rft] regparm vs stack probe fix
  - From: Christopher Faylor

References:
- [windows][rft] regparm vs stack probe fix
  - From: Richard Henderson

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