backport of Revision 120684 for Macintel into gcc 4.2.1?

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backport of Revision 120684 for Macintel into g...
\ Jack Howarth (17 May 2007)
. \ Eric Christopher (17 May 2007)
. . \ Richard Guenther (17 May 2007)
. . . \ Jack Howarth (17 May 2007)
. . . \ Jack Howarth (17 May 2007)
. . . . \ Andreas Tobler (17 May 2007)
. . . . . \ Jack Howarth (18 May 2007)
. . . \ Jack Howarth (17 May 2007)

Subject:	backport of Revision 120684 for Macintel into gcc 4.2.1?
Group:	Gcc
From:	Jack Howarth
Date:	17 May 2007

Currently gcc 4.2.0 suffers from 90 libjava failures on i686-apple-darwin8
including the boehm gctest. Backporting the changes from revision 120684...

http://gcc.gnu.org/viewcvs?view=rev&revision=120684

as suggested in...

http://article.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/1416/ match=xcode
http://article.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/1542/ match=xcode

reduces the number of failures to 27. The remaining failures in the libjava testsuite are
now...

WARNING: program timed out.
FAIL: Process_5 -O3 execution - bytecode->native test
FAIL: StackTrace2 output - gij test
FAIL: StackTrace2 output - gij test
FAIL: StackTrace2 output - gij test
FAIL: StackTrace2 output - gij test
FAIL: SyncTest execution - gij test
FAIL: SyncTest execution - gij test
FAIL: SyncTest execution - gij test
FAIL: SyncTest execution - gij test
FAIL: Throw_2 execution - source compiled test
FAIL: Throw_2 execution - gij test
FAIL: Throw_2 execution - bytecode->native test
FAIL: Throw_2 execution - gij test
FAIL: Throw_2 -findirect-dispatch execution - bytecode->native test
FAIL: Throw_2 -O3 execution - source compiled test
FAIL: Throw_2 execution - gij test
FAIL: Throw_2 -O3 execution - bytecode->native test
FAIL: Throw_2 execution - gij test
FAIL: Throw_2 -O3 -findirect-dispatch execution - bytecode->native test
FAIL: initexc execution - gij test
FAIL: initexc execution - gij test
FAIL: initexc execution - gij test
FAIL: initexc execution - gij test
FAIL: stacktrace output - gij test
FAIL: stacktrace output - gij test
FAIL: stacktrace output - gij test
FAIL: stacktrace output - gij test

which includes one new failure (Process_5). Shouldn''t the changes in
revision 120684 be backported to gcc 4.2.1? Also does anyone know
if additional fixes to eliminate these remaining failures currently
reside in gcc trunk? Thanks in advance.
Jack