Tim Northover 5f6de253c5 ARM: use a pseudo-instruction for cmpxchg at -O0. ... The fast register-allocator cannot cope with inter-block dependencies without spilling. This is fine for ldrex/strex loops coming from atomicrmw instructions where any value produced within a block is dead by the end, but not for cmpxchg. So we lower a cmpxchg at -O0 via a pseudo-inst that gets expanded after regalloc. Fortunately this is at -O0 so we don't have to care about performance. This simplifies the various axes of expansion considerably: we assume a strong seq_cst operation and ensure ordering via the always-present DMB instructions rather than v8 acquire/release instructions. Should fix the 32-bit part of PR25526. llvm-svn: 266679		2016-04-18 21:48:55 +00:00
..
ADCE	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
AddDiscriminators	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
AlignmentFromAssumptions
ArgumentPromotion	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
AtomicExpand	ARM: use a pseudo-instruction for cmpxchg at -O0.	2016-04-18 21:48:55 +00:00
BBVectorize
BDCE
BranchFolding
CodeExtractor
CodeGenPrepare	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
ConstantHoisting	ARM: don't try to hoist constant RHS out of a division.	2016-04-15 18:17:18 +00:00
ConstantMerge
ConstProp
CorrelatedValuePropagation
CrossDSOCFI
DeadArgElim	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
DeadStoreElimination	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
EarlyCSE
EliminateAvailableExternally
Float2Int
ForcedFunctionAttrs
FunctionAttrs	Don't IPO over functions that can be de-refined	2016-04-08 00:48:30 +00:00
FunctionImport	ThinLTO: Make aliases explicit in the summary	2016-04-16 06:56:44 +00:00
GCOVProfiling	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
GlobalDCE
GlobalOpt	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
GVN	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
IndVarSimplify	This reverts commit r265913 and r265912	2016-04-11 15:26:18 +00:00
InferFunctionAttrs	[NVPTX] Infer __nvvm_reflect as nounwind, readnone	2016-03-31 21:29:57 +00:00
Inline	Revert "Replace the use of MaxFunctionCount module flag"	2016-04-18 15:31:11 +00:00
InstCombine	Fix a typo in rL265762	2016-04-17 04:30:43 +00:00
InstMerge	fixed typo - CHECK-LABEL	2016-03-29 06:49:38 +00:00
InstSimplify	[ValueTracking] Correct lit test comments. NFC.	2016-04-18 19:11:45 +00:00
Internalize
IPConstantProp	Don't IPO over functions that can be de-refined	2016-04-08 00:48:30 +00:00
IRCE
JumpThreading
LCSSA
LICM	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
LoadCombine
LoopDataPrefetch	[LoopDataPrefetch] Centralize the tuning cl::opts under the pass	2016-03-29 23:45:52 +00:00
LoopDeletion
LoopDistribute
LoopIdiom	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
LoopInterchange
LoopLoadElim	[LLE] Check for mismatching types between the store and the load earlier	2016-03-24 17:59:26 +00:00
LoopReroll	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
LoopRotate	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
LoopSimplify	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
LoopSimplifyCFG
LoopStrengthReduce	Don't delete empty preheaders in CodeGenPrepare if it would create a critical edge	2016-04-05 14:06:20 +00:00
LoopUnroll	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
LoopUnswitch	[SimlifyCFG] Prevent passes from destroying canonical loop structure, especially for nested loops	2016-03-29 04:08:57 +00:00
LoopVectorize	[ARM] AArch32 v8 NEON is still not IEEE-754 compliant	2016-04-18 12:06:47 +00:00
LoopVersioning	[LVers] Change CHECK_LABEL to CHECK-LABEL (underscore->dash)	2016-03-28 21:04:13 +00:00
LoopVersioningLICM
LowerAtomic
LowerBitSets	[cfi] Support explicit sections for functions in cfi-icall.	2016-04-15 22:55:38 +00:00
LowerExpectIntrinsic
LowerGuardIntrinsic	Introduce a @llvm.experimental.guard intrinsic	2016-03-31 00:18:46 +00:00
LowerInvoke
LowerSwitch
Mem2Reg	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
MemCpyOpt
MergeFunc	MergeFunctions: test alloca better	2016-04-12 00:03:26 +00:00
MetaRenamer
NameAnonFunctions	Add a pass to name anonymous/nameless function	2016-04-12 21:35:28 +00:00
NaryReassociate
ObjCARC	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
PartiallyInlineLibCalls
PGOProfile	[PGO] Avoid instrumenting direct callee's at value sites.	2016-04-04 18:56:36 +00:00
PhaseOrdering
PlaceSafepoints
PruneEH
Reassociate
Reg2Mem
RewriteStatepointsForGC	[RS4GC] Better codegen for deoptimize calls	2016-04-05 23:18:35 +00:00
SafeStack	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
SampleProfile	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
Scalarizer	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
ScalarRepl	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
SCCP	Don't IPO over functions that can be de-refined	2016-04-08 00:48:30 +00:00
SeparateConstOffsetFromGEP
SimplifyCFG	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
Sink
SLPVectorizer	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
SpeculativeExecution	Move divergent-target test into CodeGen/NVPTX because it requires an NVPTX target.	2016-04-15 01:20:52 +00:00
SROA	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
StraightLineStrengthReduce
StripDeadPrototypes
StripSymbols	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
StructurizeCFG	AMDGPU: Remove leftover ShaderType attributes in tests	2016-04-13 00:39:48 +00:00
TailCallElim
Util	[PR27284] Reverse the ownership between DICompileUnit and DISubprogram.	2016-04-15 15:57:41 +00:00
WholeProgramDevirt