Craig Topper 1bc52fbec6 [InstCombine] Remove check for sext of vector icmp from shouldOptimizeCast ... Looks like for 'and' and 'or' we end up performing at least some of the transformations this is bocking in a round about way anyway. For 'and sext(cmp1), sext(cmp2) we end up later turning it into 'select cmp1, sext(cmp2), 0'. Then we optimize that back to sext (and cmp1, cmp2). This is the same result we would have gotten if shouldOptimizeCast hadn't blocked it. We do something analogous for 'or'. With this patch we allow that transformation to happen directly in foldCastedBitwiseLogic. And we now support the same thing for 'xor'. This is definitely opening up many other cases, but since we already went around it for some cases hopefully it's ok. Differential Revision: https://reviews.llvm.org/D36213 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311508 91177308-0d34-0410-b5e6-96231b3b80d8		2017-08-22 23:40:15 +00:00
..
ADCE	[ADCE][Dominators] Reapply: Teach ADCE to preserve dominators	2017-08-22 16:30:21 +00:00
AddDiscriminators
AlignmentFromAssumptions
ArgumentPromotion	[ArgPromotion] Preserve alignment of byval argument in new alloca	2017-08-04 17:09:11 +00:00
AtomicExpand
BDCE	[BDCE] Don't check demanded bits on unsized types	2017-08-16 16:09:22 +00:00
BranchFolding
CodeExtractor	Clean up a test case	2017-06-27 21:35:49 +00:00
CodeGenPrepare	[CGP] Fix the rematerialization of gc.relocates	2017-08-17 05:48:30 +00:00
ConstantHoisting	[ConstantHoisting] Remove dupliate logic in constant hoisting	2017-07-10 20:45:34 +00:00
ConstantMerge
ConstProp	[X86] Replace 'REQUIRES: x86' in tests with 'REQUIRES: x86-registered-target' which seems to be the correct way to make them run on an x86 build.	2017-06-04 08:21:58 +00:00
Coroutines	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
CorrelatedValuePropagation	[LVI] Constant-propagate a zero extension of the switch condition value through case edges	2017-08-03 21:11:30 +00:00
CountingFunctionInserter
CrossDSOCFI	[cfi] CFI-ICall for ThinLTO.	2017-06-16 00:18:29 +00:00
DCE	Add strictfp attribute to prevent unwanted optimizations of libm calls	2017-08-14 21:15:13 +00:00
DeadArgElim	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
DeadStoreElimination	Revert r310055, it caused PR34074.	2017-08-04 20:40:38 +00:00
EarlyCSE	[EarlyCSE] Handle calls with no MemorySSA info.	2017-07-14 20:13:21 +00:00
EliminateAvailableExternally
Float2Int
ForcedFunctionAttrs
FunctionAttrs
FunctionImport	Fix bot failures by requiring x86 target	2017-08-19 19:15:04 +00:00
GCOVProfiling	[llvm] Get rid of "%T" expansions	2017-08-15 20:29:24 +00:00
GlobalDCE	[PM] Teach the PGO instrumentation pasess to run GlobalDCE before	2017-05-25 07:15:09 +00:00
GlobalMerge	[DI] Every DIGlobalVariable should have a type.	2017-08-16 13:39:07 +00:00
GlobalOpt	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
GlobalSplit
GuardWidening
GVN	Keep Optimization Remark Yaml in NewPM	2017-08-20 01:30:45 +00:00
GVNHoist
GVNSink	Changed a comparison operator for std::stable_sort to implement strict weak ordering.	2017-06-08 17:27:40 +00:00
IndVarSimplify	[SCEV/IndVars] Always compute loop exiting values if the backedge count is 0	2017-08-01 22:37:58 +00:00
InferAddressSpaces	[InferAddressSpaces] Fix assertion about null pointer	2017-07-07 02:40:13 +00:00
InferFunctionAttrs	Add argmononly attribute to strlen and wcslen, i.e. they only read memory (string) passed to them.	2017-06-18 03:10:26 +00:00
Inline	Emit only A Single Opt Remark When Inlining	2017-08-21 16:45:47 +00:00
InstCombine	[InstCombine] Remove check for sext of vector icmp from shouldOptimizeCast	2017-08-22 23:40:15 +00:00
InstMerge
InstNamer
InstSimplify	[InstSimplify] Teach decomposeBitTestICmp to handle non-canonical compares	2017-08-14 22:11:43 +00:00
InterleavedAccess	[InterLeaved] Adding lit test for future work interleaved load strid 3	2017-08-21 08:56:39 +00:00
Internalize
IPConstantProp
IRCE	[IRCE] Fix buggy behavior in Clamp	2017-08-18 22:50:29 +00:00
JumpThreading	Revert 311208, 311209	2017-08-21 16:00:38 +00:00
LCSSA
LICM	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
LoadStoreVectorizer
LoopDataPrefetch
LoopDeletion	[Dominators] Teach LoopDeletion to use the new incremental API	2017-08-02 18:17:52 +00:00
LoopDistribute
LoopIdiom	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
LoopInterchange	[LoopInterchange] Do not interchange loops with function calls.	2017-07-31 09:00:52 +00:00
LoopLoadElim
LoopPredication
LoopReroll	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
LoopRotate	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
LoopSimplify	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
LoopSimplifyCFG
LoopStrengthReduce	Reapply fix PR23384 (part 3 of 3) r304824 (was reverted in r305720).	2017-08-07 19:56:34 +00:00
LoopUnroll	Changed basic cost of store operation on X86	2017-08-20 12:34:29 +00:00
LoopUnswitch	Add "REQUIRES: asserts" for test unswitch-equality-undef.ll.	2017-07-26 01:34:46 +00:00
LoopVectorize	Revert r311077: [LV] Using VPlan ...	2017-08-20 23:17:11 +00:00
LoopVersioning
LoopVersioningLICM
LowerAtomic
LowerExpectIntrinsic	Fix builin_expect lowering bug	2017-06-07 18:32:24 +00:00
LowerGuardIntrinsic
LowerInvoke
LowerSwitch
LowerTypeTests	Update phi nodes in LowerTypeTests control flow simplification	2017-07-31 20:43:07 +00:00
Mem2Reg	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
MemCpyOpt
MergeFunc	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
MetaRenamer	[MetaRenamer] Leave @main alone.	2017-08-01 05:14:45 +00:00
NameAnonGlobals
NaryReassociate
NewGVN	Keep Optimization Remark Yaml in NewPM	2017-08-20 01:30:45 +00:00
ObjCARC	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
PartiallyInlineLibCalls
PGOProfile	Keep Optimization Remark Yaml in NewPM	2017-08-20 01:30:45 +00:00
PhaseOrdering
PlaceSafepoints	All libcalls should be considered to be GC-leaf functions.	2017-07-27 16:49:39 +00:00
PreISelIntrinsicLowering
PruneEH
Reassociate	[Reassociate] Make sure EraseInst sets MadeChange	2017-06-27 05:32:13 +00:00
Reg2Mem
RewriteStatepointsForGC	All libcalls should be considered to be GC-leaf functions.	2017-07-27 16:49:39 +00:00
SafeStack	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
SampleProfile	Keep Optimization Remark Yaml in NewPM	2017-08-20 01:30:45 +00:00
Scalarizer	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
SCCP	[IPSCCP] Guard a user of getInitializer with hasDefinitiveInitializer	2017-07-31 17:47:07 +00:00
SeparateConstOffsetFromGEP
SimpleLoopUnswitch	[PM/Unswitch] Fix a bug in the domtree update logic for the new unswitch	2017-05-25 06:33:36 +00:00
SimplifyCFG	[SimplifyCFG] Add a test for preserve store alignment, NFC.	2017-08-17 17:26:52 +00:00
Sink	Enhance synchscope representation	2017-07-11 22:23:00 +00:00
SLPVectorizer	Keep Optimization Remark Yaml in NewPM	2017-08-20 01:30:45 +00:00
SpeculativeExecution
SROA	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
StraightLineStrengthReduce
StripDeadPrototypes
StripSymbols	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
StructurizeCFG	[Dominators] Include infinite loops in PostDominatorTree	2017-08-15 18:14:57 +00:00
TailCallElim	[TRE] Add another test for OptRemark.	2017-07-19 21:39:51 +00:00
ThinLTOBitcodeWriter	ThinLTO Minimized Bitcode File Size Reduction	2017-07-21 17:25:20 +00:00
Util	Keep Optimization Remark Yaml in NewPM	2017-08-20 01:30:45 +00:00
WholeProgramDevirt	WholeProgramDevirt: Create bitcast to i8* at each virtual call site.	2017-08-22 21:41:19 +00:00