---- Reported by vargaz@freemail.hu 2003-04-30 05:58:57 MST ----

The attached test case illustrates a register allocation problem: the code
in the exception handler thinks %EDI holds the domain pointer, which is
not true.

You have to run the testcase with --optimize=shared to see the problem.

I reported this earlier by mail but it seems to have been forgotten.



---- Additional Comments From vargaz@freemail.hu 2003-04-30 05:59:32 MST ----

Created an attachment (id=164645)
testcase




---- Additional Comments From lupus@ximian.com 2003-04-30 10:32:02 MST ----

The issue here is that the liveness code seems to not take into account
the possibility that control flow jumps from the middle of a basic
block to an exception handler. I guess this may happen in non-shared
code, too. The fix may be to extend the lifeness of a variable that is
used in the exception handlers to the whole region of code the handler
refers to, if the variable was used outside.
The change is too big to do just before a release, though.



---- Additional Comments From vargaz@freemail.hu 2003-04-30 16:44:08 MST ----

A temporary workaround would be to disable the register allocator
on methods which contain exception handlers.



---- Additional Comments From lupus@ximian.com 2003-05-02 12:37:42 MST ----

The workaround is in cvs.



---- Additional Comments From vargaz@freemail.hu 2004-02-26 09:39:57 MST ----

Fixed in CVS.

Imported an attachment (id=164645)