http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54685
--- Comment #1 from Oleg Endo <olegendo at gcc dot gnu.org> 2012-10-04 23:50:16
UTC ---
Just for the record...
I've tried adding this pattern
Failed to match this instruction:
(parallel [
(set (reg:SI 166 [ D.42391+-3 ])
(ge:SI (reg:SI 4 r4 [ a ])
(const_int 0 [0])))
(clobber (reg:SI 147 t))
])
It fixes the test cases in the description, but prevents some of the div0s
integer sign comparison patterns from matching, since combine would try out
different combinations with the pattern above.
