optimization/8178: [3.4 regression] __builtin_ffs broken with -march=k6

[reichelt@igpm.rwth-aachen.de]

Old Synopsis: __builtin_ffs broken
New Synopsis: [3.4 regression] __builtin_ffs broken with -march=k6

State-Changed-From-To: closed->analyzed
State-Changed-By: reichelt
State-Changed-When: Mon Apr 28 14:48:43 2003
State-Changed-Why:
    As Falk pointed out, __builtin_ffs broken is still broken
    on mainline with -march=k6. The tests ffs-1.c, ffs-2.c
    from the testsuite Eric mentioned also still fail on mainline.
    
    Since this all works on the 3.3 branch, we have a regression.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8178