target/10282: [3.3/3.4 regression] ICE: unable to find a register to spill in class `Q_REGS'

[Janis Johnson]

The regression appeared with this patch:

Sat Mar 30 14:08:55 CET 2002  Jan Hubicka  <jh@suse.cz>

        * i386.c (aligned_operand): Be prepared for SUBREGed registers.
        (ix86_decompose_address): Use REG_P instead of GET_CODE (...) ==
REG.
        (ix86_address_cost): Be prepared for SUBREGed registers.
        (legitimate_address_p): Accept SUBREGed registers.

The hunt used -O with Wolfgang's minimized testcase on
i686-pc-linux-gnu.  This change was checked in at the same
time as four others that appear to be unrelated to each
other, and I verified that this one breaks the test case.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10282