llvm-6502/test/Transforms
Nick Lewycky 1b344bc986 Xor'ing both sides of icmp by sign-bit is equivalent to swapping signedness of
the predicate.

Also, make this optz'n apply in more cases where it's safe to do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54876 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-17 07:34:14 +00:00
..
ADCE
ArgumentPromotion
BlockPlacement
BranchFolding
CodeExtractor
CondProp
ConstantMerge
ConstProp
DeadArgElim
DeadStoreElimination
GlobalDCE
GlobalOpt
GVN
GVNPRE
IndVarsSimplify
Inline
InstCombine
Internalize
IPConstantProp
JumpThreading
LCSSA
LICM
LoopDeletion
LoopIndexSplit
LoopRotate
LoopSimplify
LoopStrengthReduce
LoopUnroll
LoopUnswitch
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg
MemCpyOpt
PredicateSimplifier
PruneEH
RaiseAllocations
Reassociate
ScalarRepl
SCCP
SimplifyCFG
SimplifyLibCalls
SRETPromotion
StripSymbols
TailCallElim
TailDup