llvm-6502/test/CodeGen
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
..
Alpha
ARM Previously, RecursivelyDeleteDeadInstructions provided an option 2009-05-02 18:29:22 +00:00
CBackend
CellSPU
CPP 'The attached patch fixes an issue where llc -march=cpp fails with 2009-05-01 23:54:26 +00:00
Generic Disable the load-shrinking optimization from looking at 2009-04-29 03:45:07 +00:00
IA64
Mips
PowerPC Second attempt: 2009-04-29 00:15:41 +00:00
SPARC
X86 Previously, RecursivelyDeleteDeadInstructions provided an option 2009-05-02 18:29:22 +00:00
XCore testcase for PR3898 2009-04-18 20:49:22 +00:00