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llvm-project/llvm/test/Transforms
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Jin Huang fa5cd27ef0
[profcheck] Add unknown branch weights to expand LL/SR loop. (#166273) 
As a follow-up to PR#165841, this change addresses `prof_md` metadata
loss in AtomicExpandPass when lowering `atomicrmw xchg` to a
Load-Linked/Store-Exclusive (LL/SC) loop.

This path is distinct from the LSE path addressed previously:

PR #165841 (and its tests) used `-mtriple=aarch64-linux-gnu`, which
targets a modern **ARMv8.1+** architecture. This architecture supports
**Large System Extensions (LSE)**, allowing `atomicrmw` to be lowered
directly to a more efficient hardware instruction.

This PR (and its tests) uses `-mtriple=aarch64--` or
`-mtriple=armv8-linux-gnueabihf`. This indicates an `ARMv8.0 or lower
architecture that does not support LSE`. On these targets, the pass must
fall back to synthesizing a manual LL/SC loop using the `ldaxr/stxr`
instruction pair.

Similar to previous issue, the new conditional branch was failin to
inherit the `prof_md` metadata. Theis PR correctly fix the branch
weights to the newly created branch within the LL/SC loop, ensuring
profile information is preserved.

Co-authored-by: Jin Huang <jingold@google.com>
2025-11-04 16:23:34 -08:00
..
ADCE
[test][Transforms] Remove unsafe-fp-math uses part 1 (NFC) (#164742)
2025-10-23 11:39:11 +08:00
AddDiscriminators
[test][Transforms] Remove unsafe-fp-math uses part 1 (NFC) (#164742)
2025-10-23 11:39:11 +08:00
AggressiveInstCombine
[profcheck] Propagate profile metadata in trunc(select) transform (#162406)
2025-10-09 13:41:53 -07:00
AlignmentFromAssumptions
[IR] Forbid mixing condition and operand bundle assumes (#160460)
2025-09-24 12:42:50 +02:00
ArgumentPromotion
[llvm] Regenerate test checks including TBAA semantics (NFC)
2025-09-12 20:01:17 +02:00
AtomicExpand
[profcheck] Add unknown branch weights to expand LL/SR loop. (#166273)
2025-11-04 16:23:34 -08:00
Attributor
[IR] Add new function attribute nocreateundeforpoison (#164809)
2025-11-04 12:00:44 +00:00
BDCE
[IR] Relax convergence requirements on call (#135794)
2025-05-02 08:17:58 +00:00
BlockExtractor
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BranchFolding
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CalledValuePropagation
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CallSiteSplitting
[RemoveDIs] Fix rotten --implicit-check-not lines (#144711)
2025-06-24 12:32:50 +01:00
CanonicalizeAliases
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CanonicalizeFreezeInLoops
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CodeExtractor
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
CodeGenPrepare
[CodeGenPrepare] Don't simplify incomplete expression tree in AddrModeCombine (#164628)
2025-10-25 16:47:32 +08:00
ConstantHoisting
[test][Transforms] Remove unsafe-fp-math uses part 1 (NFC) (#164742)
2025-10-23 11:39:11 +08:00
ConstantMerge
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ConstraintElimination
[ConstraintElim] Apply add with neg constant first during decomp. (#164791)
2025-10-23 12:50:12 +01:00
Coroutines
[test][Transforms] Remove unsafe-fp-math uses part 1 (NFC) (#164742)
2025-10-23 11:39:11 +08:00
CorrelatedValuePropagation
[LVI] Handle constant value lattice in getEdgeValueLocal (#161410)
2025-10-01 14:20:10 +08:00
CrossDSOCFI
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DCE
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
DeadArgElim
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
DeadStoreElimination
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
DFAJumpThreading
[DFAJumpThreading] Add MaxOuterUseBlocks threshold (#163428)
2025-10-30 00:34:48 +08:00
DivRemPairs
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DropUnnecessaryAssumes
[DropUnnecessaryAssumes] Don't drop public_type_test intrinsic (#166034)
2025-11-03 10:34:44 +00:00
DXILUpgrade
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EarlyCSE
[IR] Add new function attribute nocreateundeforpoison (#164809)
2025-11-04 12:00:44 +00:00
EliminateAvailableExternally
[ElimAvailExtern] Add an option to allow to convert global variables in a specified address space to local (#144287)
2025-06-17 19:58:24 -04:00
EmbedBitcode
Revert "[llvm][EmbedBitcodePass] Prevent modifying the module with ThinLTO" (#145987)
2025-06-26 22:35:38 -07:00
EntryExitInstrumenter
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ExpandFp/AMDGPU
[AMDGPU] expand-fp: unify scalarization (NFC) (#158588)
2025-10-13 09:18:03 +02:00
ExpandLargeDivRem/X86
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ExpandLargeFpConvert/X86
[X86] Fix expand-fp on optnone functions (#156900)
2025-09-05 16:22:22 +02:00
ExpandMemCmp
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ExpandVariadics
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
FatLTOCleanup
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FixIrreducible
[AMDGPU][FixIrreducible][UnifyLoopExits] Support callbr with inline-asm (#149308)
2025-10-30 14:22:42 +01:00
Float2Int
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ForcedFunctionAttrs
ForceFunctionAttrs: Use reportFatalUsageError (#139473)
2025-05-15 15:00:05 +02:00
FunctionAttrs
[IR] Replace alignment argument with attribute on masked intrinsics (#163802)
2025-10-20 08:50:09 +00:00
FunctionImport
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
FunctionSpecialization
[FunctionSpecialization][nfc] Add a test for zero function entry count (#160156)
2025-09-22 18:11:08 +00:00
GCOVProfiling
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
GlobalDCE
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GlobalMerge
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GlobalOpt
[IR] Require DataLayout for pointer cast elimination (#162279)
2025-10-07 17:19:48 +02:00
GlobalSplit
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GuardWidening
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GVN
[GVN] Add tests for pointer replacement with different addr size (NFC)
2025-10-30 10:34:59 +01:00
GVNHoist
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
GVNSink
[GVNSink] Add support for ptrtoaddr
2025-10-20 16:46:08 +02:00
HardwareLoops
[LoopUnroll] Skip remainder loop guard if skip unrolled loop (#156549)
2025-10-07 10:45:49 -04:00
HelloNew
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HipStdPar
[HIPSTDPAR] Add handling for math builtins (#140158)
2025-07-28 22:29:31 +01:00
HotColdSplit
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
IndirectBrExpand
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IndVarSimplify
[SCEV] Improve handling of divisibility information from loop guards. (#163021)
2025-11-02 14:16:24 +00:00
InferAddressSpaces
[IR] Replace alignment argument with attribute on masked intrinsics (#163802)
2025-10-20 08:50:09 +00:00
InferAlignment
[IR] Replace alignment argument with attribute on masked intrinsics (#163802)
2025-10-20 08:50:09 +00:00
InferFunctionAttrs
[TLI] Handle cabs without parameters gracefully
2025-07-15 10:41:32 +02:00
Inline
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
InstCombine
[profcheck][InstCombine] Preserve branch weights in logical identities (#165810)
2025-11-03 09:32:42 -08:00
InstNamer
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InstSimplify
[LLVM][ConstantFolding] Extend constantFoldVectorReduce to include scalable vectors. (#165437)
2025-10-31 11:14:08 +00:00
InterleavedAccess
[IR] Replace alignment argument with attribute on masked intrinsics (#163802)
2025-10-20 08:50:09 +00:00
Internalize
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IRCE
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IRNormalizer
[IR] Introduce the ptrtoaddr instruction
2025-08-08 10:12:39 -07:00
IROutliner
[IR] Remove unsafe-fp-math attribute support (#164534)
2025-10-22 13:17:04 +08:00
JumpTableToSwitch
[profcheck] Require unknown metadata have an origin parameter (#157594)
2025-09-10 15:34:35 -07:00
JumpThreading
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
KCFI
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LCSSA
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LICM
[LICM] Sink unused l-invariant loads in preheader. (#157559)
2025-10-30 09:23:04 -05:00
LoadStoreVectorizer
[LoadStoreVectorizer] Batch alias analysis results to improve compile time (#147555)
2025-07-10 11:23:33 -05:00
LoopBoundSplit
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LoopDataPrefetch
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LoopDeletion
[LICM] Sink unused l-invariant loads in preheader. (#157559)
2025-10-30 09:23:04 -05:00
LoopDistribute
[LICM] Sink unused l-invariant loads in preheader. (#157559)
2025-10-30 09:23:04 -05:00
LoopFlatten
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LoopFusion
[LoopFusion] Forget loop and block dispositions after latch merge (#166233)
2025-11-04 16:48:39 -05:00
LoopIdiom
[IR] Add new function attribute nocreateundeforpoison (#164809)
2025-11-04 12:00:44 +00:00
LoopInstSimplify
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LoopInterchange
[LoopInterchange] Add simplifyLCSSAPhis: remove phi from non-exit bb (#160889)
2025-10-20 10:23:36 +01:00
LoopLoadElim
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
LoopPredication
[SimpleLoopUnswitch] Don't use BlockFrequencyInfo to skip cold loops (#159522)
2025-10-17 23:33:49 +00:00
LoopRotate
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
LoopSimplify
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LoopSimplifyCFG
[LoopSimplifyCFG] Remove Extra Redirection From Test
2025-10-11 19:34:17 +00:00
LoopStrengthReduce
[LSR] Don't count conditional loads/store as enabling pre/post-index (#159573)
2025-10-30 13:53:15 +00:00
LoopTransformWarning
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LoopUnroll
[LoopUnroll] Fix division by zero (#166258)
2025-11-04 12:49:33 -05:00
LoopUnrollAndJam
[LoopUnroll] Skip remainder loop guard if skip unrolled loop (#156549)
2025-10-07 10:45:49 -04:00
LoopVectorize
[LAA] Only use inbounds/nusw in isNoWrap if the GEP is dereferenced. (#161445)
2025-11-04 17:08:12 +00:00
LoopVersioning
[llvm] Regenerate test checks including TBAA semantics (NFC)
2025-09-12 20:01:17 +02:00
LoopVersioningLICM
[LAA] Keep pointer checks on partial analysis (#139719)
2025-06-04 16:47:20 +01:00
LowerAtomic
Reland [llvm] Add support for llvm IR atomicrmw fminimum/fmaximum instructions (#137701)
2025-04-30 22:06:37 +01:00
LowerConstantIntrinsics
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LowerExpectIntrinsic
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LowerGlobalDestructors
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LowerGuardIntrinsic
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LowerIFunc
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LowerInvoke
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LowerMatrixIntrinsics
[LMI] Support non-power-of-2 types for the matmul remainder (#163987)
2025-10-17 18:42:30 +00:00
LowerSwitch
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LowerTypeTests
[IR] Require DataLayout for pointer cast elimination (#162279)
2025-10-07 17:19:48 +02:00
LowerWidenableCondition
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MakeGuardsExplicit
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Mem2Reg
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
MemCpyOpt
[MemCpyOpt] Allow stack move optimization if one address captured (#165527)
2025-10-30 10:23:40 +01:00
MemProfContextDisambiguation
[MemProf] Make sure call clones without callsite node clones get updated (#159861)
2025-09-25 12:26:57 -07:00
MergedLoadStoreMotion
[llvm] Regenerate test checks including TBAA semantics (NFC)
2025-09-12 20:01:17 +02:00
MergeFunc
LowerTypeTests: Shrink check size by 1 instruction on x86.
2025-06-06 12:43:24 -07:00
MergeICmps
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
MetaRenamer
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MoveAutoInit
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
NameAnonGlobals
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NaryReassociate
[NVPTX] use untyped loads and stores where ever possible (#137698)
2025-05-10 08:26:26 -07:00
NewGVN
[test][Transforms] Remove unsafe-fp-math uses part 2 (NFC) (#164786)
2025-10-23 20:31:31 +08:00
ObjCARC
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
OpenMP
[Attributor] Propagate alignment through ptrmask (#150158)
2025-11-04 12:26:17 +08:00
PartialInlining
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
PartiallyInlineLibCalls
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PGOProfile
[MemProf] Select largest of matching contexts from profile (#165338)
2025-10-31 08:48:02 -05:00
PhaseOrdering
[LV] Add tests with hoist-able invariant loads.
2025-11-02 16:10:45 +00:00
PlaceSafepoints
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PreISelIntrinsicLowering
[IR] Add new function attribute nocreateundeforpoison (#164809)
2025-11-04 12:00:44 +00:00
Reassociate
[NFC][LLVM] Make test resilent to value of use-constant-*-splat flags.
2025-08-01 16:54:48 +00:00
Reg2Mem
[IR] Don't allow values of opaque type (#137625)
2025-04-30 15:01:00 +02:00
RelLookupTableConverter
[NVPTX] Disable relative lookup tables (#159748)
2025-09-22 12:18:25 +02:00
RewriteStatepointsForGC
[IR] Replace alignment argument with attribute on masked intrinsics (#163802)
2025-10-20 08:50:09 +00:00
SafeStack
De-support SafeStack on non-x86 Fuchsia (#164855)
2025-10-24 09:17:43 -07:00
SampleProfile
[test][Transforms] Remove unsafe-fp-math uses part 3 (NFC) (#164787)
2025-10-24 18:49:45 +08:00
SandboxVectorizer
Reapply "[SandboxVec] Add a simple pack reuse pass (#141848)"
2025-06-05 09:14:17 -07:00
ScalarizeMaskedMemIntrin
[IR] Replace alignment argument with attribute on masked intrinsics (#163802)
2025-10-20 08:50:09 +00:00
Scalarizer
[test][Transforms] Remove unsafe-fp-math uses part 3 (NFC) (#164787)
2025-10-24 18:49:45 +08:00
SCCP
[PredicateInfo] Reserve adjacent LN_Last defs for the same phi use (#164577)
2025-10-22 22:17:39 +08:00
SeparateConstOffsetFromGEP
[SeparateConstOffsetFromGEP] Check if non-extracted indices may be negative when preserving inbounds (#159515)
2025-09-19 09:01:14 +02:00
SimpleLoopUnswitch
[NFC][SLU] Update SimpleLoopUnswitch/guards.ll (#166285)
2025-11-04 11:00:35 -08:00
SimplifyCFG
[SimplifyCFG] Fix value enumeration of a full range (#166379)
2025-11-05 01:43:05 +08:00
SimplifyTypeTests
LowerTypeTests: Shrink check size by 1 instruction on x86.
2025-06-06 12:43:24 -07:00
Sink
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SLPVectorizer
[AArch64] Improve the cost model for extending mull (#125651)
2025-11-04 07:50:51 +00:00
SpeculativeExecution
[SpeculativeExecution] Add support for ptrtoaddr
2025-10-20 16:56:11 +02:00
SROA
[test][Transforms] Remove unsafe-fp-math uses part 3 (NFC) (#164787)
2025-10-24 18:49:45 +08:00
StackProtector
[llvm][StackProtector] Add noreturn to __stack_chk_fail call (#143976)
2025-07-16 13:12:28 -07:00
StraightLineStrengthReduce
[test][Transforms] Remove unsafe-fp-math uses part 3 (NFC) (#164787)
2025-10-24 18:49:45 +08:00
StripDeadPrototypes
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StripSymbols
[llvm-extract] Delete dead CG Profile edges (#134940)
2025-04-09 10:36:12 -07:00
StructurizeCFG
Reapply: [AMDGPU][UnifyDivergentExitNodes][StructurizeCFG] Add support for callbr instruction with inline-asm (#152161) (#166195)
2025-11-03 20:59:48 +01:00
TailCallElim
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
ThinLTOBitcodeWriter
ThinLTOBitcodeWriter: Split modules with __cfi_check and no type metadata.
2025-08-28 19:13:53 -07:00
TypePromotion
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UnifyFunctionExitNodes
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UnifyLoopExits
[AMDGPU][FixIrreducible][UnifyLoopExits] Support callbr with inline-asm (#149308)
2025-10-30 14:22:42 +01:00
Util
DeclareRuntimeLibcalls: Add registered target checks to test run lines
2025-11-04 11:23:02 -08:00
VectorCombine
[VectorCombine] Avoid inserting freeze when scalarizing extend-extract if all extracts would lead to UB on poison. (#164683)
2025-11-04 12:39:04 +00:00
WholeProgramDevirt
[WPD]: Enable speculative devirtualizatoin. (#159048)
2025-10-22 12:16:11 +01:00
lower-builtin-allow-check-pipeline.ll
[LowerAllowCheckPass] fix pipeline printing (#146000)
2025-06-26 21:35:35 -07:00
lower-builtin-allow-check-remarks.ll
[LowerAllowCheckPass] allow to specify runtime.check hotness (#145998)
2025-06-27 11:28:07 -07:00
lower-builtin-allow-check.ll
…