[LLVMdev] [PATCH] SelectionDAG Debug

[David Greene]

Just so this doesn't get lost in threads dealing with SelectionDAG
issues, I'd like to post this patch for review.  It changes the SDUse
list from an intrusive list to a std::list<> under XDEBUG.  This allows
us to use the debugging features of the standard library to track down
stubborn bugs.

I've used this to diagnose in issue in SelectionDAG in our sources and
also in the Blackfin codegen on TOT.

Please review, comment and let me know what needs to change for
commit.

Thanks!

                                          -Dave

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