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Re: egcs-980321 can't compile gdb-4.16

To: Corey Kosak <kosak at cs dot cmu dot edu>
Subject: Re: egcs-980321 can't compile gdb-4.16
From: Jim Wilson <wilson at cygnus dot com>
Date: Wed, 25 Mar 1998 16:08:25 -0800
cc: egcs-bugs at cygnus dot com, rth at cygnus dot com

This is a bug in the alpha port.  The extzv pattern accepts any bitfield which
is a multiple of 8 bits, however, the alpha_expand_unaligned_load function
only works for bitfields which are 2/4/8 bytes.  In this case, we call extzv
for a 3 byte bitfield, and it dies in gen_lowpart (called from alpha_expand_
unaligned_load) because mode == VOIDmode.

Jim

References:
- egcs-980321 can't compile gdb-4.16
  - From: Corey Kosak

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