[cond-optab] Convert bfin

[Bernd Schmidt]

I get a lot of these:

./bitmap.i
../../binutils/gcc/bitmap.c: In function ‘bitmap_operation’:
../../binutils/gcc/bitmap.c:645: internal compiler error: in 
gen_cstoresi4, at config/bfin/bfin.md:2456
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
./builtins.i
./caller-save.i
./calls.i
./c-aux-info.i
./c-common.i
./c-convert.i
./c-decl.i
../../binutils/gcc/c-decl.c: In function ‘complete_array_type’:
../../binutils/gcc/c-decl.c:3339: internal compiler error: in 
gen_cstoresi4, at config/bfin/bfin.md:2456
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
./c-dump.i
./c-errors.i
./cfganal.i
./cfgbuild.i
./cfg.i
../../binutils/gcc/cfg.c: In function ‘cached_make_edge’:
../../binutils/gcc/cfg.c:329: internal compiler error: in gen_cstoresi4, 
at config/bfin/bfin.md:2456
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
./cfgcleanup.i
./cfglayout.i
./cfgloop.i
../../binutils/gcc/cfgloop.c: In function ‘glb_enum_p’:
../../binutils/gcc/cfgloop.c:982: internal compiler error: in 
gen_cstoresi4, at config/bfin/bfin.md:2456
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

That's
   gcc_assert (GET_CODE (bi_compare) == NE);

Plain compile of random source files with -O2 -fomit-frame-pointer, on 
bfin-elf.


Bernd
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