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Re: Illegal code generation: gcc-3.2 --target=m68k-elf

From: Peter Barada <pbarada at mail dot wm dot sps dot mot dot com>
To: rth at redhat dot com
Cc: Peter dot Barada at motorola dot com, Peter dot Barada at motorola dot com, gcc at gcc dot gnu dot org
Date: Tue, 22 Oct 2002 12:50:08 -0400
Subject: Re: Illegal code generation: gcc-3.2 --target=m68k-elf
References: <200210212322.g9LNMOX20258@hyper.wm.sps.mot.com> <20021022062737.GD15658@redhat.com> <200210221529.g9MFTJr21005@hyper.wm.sps.mot.com> <20021022164459.GB16329@redhat.com>

>> Hopefully this is enough information.  I'm still cutting the testcase
>> down to size...  I hope to have a bug report soon.
>
>This is going to have to be debugged.  This should have been
>handled by find_reloads_toplev, iirc.

I've cut the testcase down to only 139 lines from an original of 20125
lines...  I'll submit it as a bug.  What is interesting is the change
of the alias information(if I remember correctly) from [0 rotate S2
A16] in insn470 to [0 rotate S4 A16] in insn 270...

References:
- Illegal code generation: gcc-3.2 --target=m68k-elf
  - From: Peter Barada
- Re: Illegal code generation: gcc-3.2 --target=m68k-elf
  - From: Richard Henderson
- Re: Illegal code generation: gcc-3.2 --target=m68k-elf
  - From: Peter Barada
- Re: Illegal code generation: gcc-3.2 --target=m68k-elf
  - From: Richard Henderson

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