llvm-6502/include/llvm/Transforms
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