Dan Gohman afc36a9520 Previously, RecursivelyDeleteDeadInstructions provided an option ... of returning a list of pointers to Values that are deleted. This was unsafe, because the pointers in the list are, by nature of what RecursivelyDeleteDeadInstructions does, always dangling. Replace this with a simple callback mechanism. This may eventually be removed if all clients can reasonably be expected to use CallbackVH. Use this to factor out the dead-phi-cycle-elimination code from LSR utility function, and generalize it to use the RecursivelyDeleteTriviallyDeadInstructions utility function. This makes LSR more aggressive about eliminating dead PHI cycles; adjust tests to either be less trivial or to simply expect fewer instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70636 91177308-0d34-0410-b5e6-96231b3b80d8		2009-05-02 18:29:22 +00:00
..
IPO	Use a SmallPtrSet instead of std::set.	2009-03-23 23:39:20 +00:00
Utils	Previously, RecursivelyDeleteDeadInstructions provided an option	2009-05-02 18:29:22 +00:00
Instrumentation.h	fix typos	2008-03-06 10:36:00 +00:00
IPO.h	Add helper pass to remove llvm.dbg.declare intrinsics.	2009-03-09 20:49:37 +00:00
RSProfiling.h	Tidy up several unbeseeming casts from pointer to intptr_t.	2008-09-04 17:05:41 +00:00
Scalar.h	Add a new pass to simplify specific half_powr function calls. This is	2008-11-04 23:41:45 +00:00