c/336: Superfluous instructions generated from bit-field operations

Tue Jun 20 00:06:00 GMT 2000

>Number:         336
>Category:       c
>Synopsis:       Superfluous instructions generated from bit-field operations
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    unassigned
>State:          open
>Class:          pessimizes-code
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 20 00:06:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     thomasl@ce.chalmers.se
>Release:        gcc version 2.95.2 19991024
>Organization:
>Environment:
sparc-sun-solaris2.7
>Description:
When putting things into a bit-field struct, extra
useless instructions are generated.

Harmless, but not very optimal.
>How-To-Repeat:
gcc -S -O2 bug.c
(or g++)
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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