optimization/5478: Internal compiler error in `change_address', at emit-rtl.c:1608

[maltieri@nergal.it]

>Number:         5478
>Category:       optimization
>Synopsis:       Internal compiler error in `change_address', at emit-rtl.c:1608
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 24 08:16:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Marco Altieri
>Release:        gcc version 3.0, gcc version 2.95.3
>Organization:
>Environment:
Linux Redhat 7.0
Windows 2000 Cygwin 2.78.2.3
>Description:
To expand a BIT_FIELD_REF or a COMPONENT_REF node,
expand_expr makes the assumption that the first operand
is a REG or A MEM, but in this case the operand is a
CONCAT.
>How-To-Repeat:
compile rs.c using optimizations:

gcc -O rs.c
gcc -O1 rs.c
gcc -O2 rs.c
gcc -O3 rs.c
>Fix:
\x03
>Release-Note:
>Audit-Trail:
>Unformatted:
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