optimization/7325: Test "if ( a && b )" where a, b are 1-bit fields, could be better

[bangerth@dealii.org]

Synopsis: Test "if ( a && b )" where a, b are 1-bit fields, could be better

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Tue Jan  7 17:51:49 2003
State-Changed-Why:
    The code generated by 3.4 is more complex with a lot
    of jumping around, but the issue basically still applies.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7325