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Darwin PPC 64 objc improvements


Geoff and Mike,
    These results are preliminary because they aren't from a complete
rebuild of gcc trunk, but from a previous bootstrap with the my proposed
fix to unwind-dw2-fde-darwin.c applied....

http://gcc.gnu.org/ml/gcc/2006-10/msg00018.html

however a...

make -k check RUNTESTFLAGS="--target_board=unix'{-m64}'"

shows a massive improvement in the number of objc passes at -m64.
Before I was seeing...

                === objc Summary for unix/-m64 ===

# of expected passes            554
# of unexpected failures        644
# of expected failures          7
# of unresolved testcases       577
# of unsupported tests          2

whereas after applying my proposed patch I see...

                === objc Summary ===

# of expected passes            1712
# of unexpected failures        68
# of expected failures          7
# of unresolved testcases       1
# of unsupported tests          2

The gcc and g++ testsuites don't show any improvements.
I'll do a complete bootstrap with my proposed patch and
rerun the testsuite to confirm the improvement in the
objc testsuite results at -m64.
          Jack


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