1; The IR below was crafted so as: 2; 1) To have a loop, so we create a loop pass manager 3; 2) To be "immutable" in the sense that no pass in the standard 4; pipeline will modify it. 5; Since no transformations take place, we don't expect any analyses 6; to be invalidated. 7; Any invalidation that shows up here is a bug, unless we started modifying 8; the IR, in which case we need to make it immutable harder. 9; 10; Postlink pipelines: 11; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 12; RUN: -passes='thinlto<O1>' -S %s 2>&1 \ 13; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,CHECK-POSTLINK-O,%llvmcheckext 14; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 15; RUN: -passes='thinlto<O2>' -S %s 2>&1 \ 16; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O2 17; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager -passes-ep-pipeline-start='no-op-module' \ 18; RUN: -passes='thinlto<O3>' -S %s 2>&1 \ 19; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O3 20; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager -passes-ep-optimizer-early='no-op-module' \ 21; RUN: -passes='thinlto<O3>' -S %s 2>&1 \ 22; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O3,CHECK-POST-EP-OPT-EARLY 23; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager -passes-ep-optimizer-last='no-op-module' \ 24; RUN: -passes='thinlto<O3>' -S %s 2>&1 \ 25; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O3,CHECK-POST-EP-OPT-LAST 26; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 27; RUN: -passes='thinlto<Os>' -S %s 2>&1 \ 28; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O23SZ,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-Os 29; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 30; RUN: -passes='thinlto<Oz>' -S %s 2>&1 \ 31; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O23SZ,CHECK-POSTLINK-O,%llvmcheckext 32; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager -debug-info-for-profiling \ 33; RUN: -passes='thinlto<O2>' -S %s 2>&1 \ 34; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-POSTLINK-O,%llvmcheckext,CHECK-POSTLINK-O2 35 36; Suppress FileCheck --allow-unused-prefixes=false diagnostics. 37; CHECK-NOEXT: {{^}} 38 39; CHECK-EP-PIPELINE-START: Running pass: NoOpModulePass 40; CHECK-DIS: Running analysis: InnerAnalysisManagerProxy 41; CHECK-DIS-NEXT: Running pass: AddDiscriminatorsPass 42; CHECK-POSTLINK-O: Running pass: PGOIndirectCallPromotion 43; CHECK-POSTLINK-O-NEXT: Running analysis: ProfileSummaryAnalysis 44; CHECK-POSTLINK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 45; CHECK-POSTLINK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis 46; CHECK-O-NEXT: Running pass: OpenMPOptPass 47; CHECK-POSTLINK-O-NEXT: Running pass: LowerTypeTestsPass 48; CHECK-O-NEXT: Running pass: IPSCCPPass 49; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis 50; CHECK-O-NEXT: Running analysis: AssumptionAnalysis 51; CHECK-O-NEXT: Running analysis: TargetIRAnalysis 52; CHECK-O-NEXT: Running pass: CalledValuePropagationPass 53; CHECK-O-NEXT: Running pass: GlobalOptPass 54; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis 55; CHECK-O-NEXT: Running pass: PromotePass 56; CHECK-O-NEXT: Running pass: InstCombinePass 57; CHECK-O-NEXT: Running analysis: LastRunTrackingAnalysis 58; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis 59; CHECK-O-NEXT: Running analysis: AAManager 60; CHECK-O-NEXT: Running analysis: BasicAA 61; CHECK-O-NEXT: Running analysis: ScopedNoAliasAA 62; CHECK-O-NEXT: Running analysis: TypeBasedAA 63; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 64; CHECK-O-NEXT: Running pass: SimplifyCFGPass 65; CHECK-O-NEXT: Running pass: AlwaysInlinerPass 66; CHECK-PRELINK-O-NEXT: Running analysis: ProfileSummaryAnalysis 67; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass 68; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis 69; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA 70; CHECK-O-NEXT: Running analysis: GlobalsAA 71; CHECK-O-NEXT: Running analysis: CallGraphAnalysis 72; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}AAManager 73; CHECK-O-NEXT: Invalidating analysis: AAManager 74; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis 75; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 76; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis 77; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy 78; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 79; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass 80; CHECK-O-NEXT: Running pass: InlinerPass 81; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass 82; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass 83; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass on (foo) 84; CHECK-O3-NEXT: Running pass: OpenMPOptCGSCCPass on (foo) 85; CHECK-O-NEXT: Running pass: SROAPass 86; CHECK-O-NEXT: Running pass: EarlyCSEPass 87; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis 88; CHECK-O-NEXT: Running analysis: AAManager 89; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass 90; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass 91; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis 92; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass 93; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis 94; CHECK-O-NEXT: Running pass: SimplifyCFGPass 95; CHECK-O-NEXT: Running pass: InstCombinePass 96; CHECK-O23SZ-NEXT: Running pass: AggressiveInstCombinePass 97; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass 98; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass 99; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass 100; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass 101; CHECK-O-NEXT: Running pass: SimplifyCFGPass 102; CHECK-O-NEXT: Running pass: ReassociatePass 103; CHECK-O23SZ-NEXT: Running pass: ConstraintEliminationPass 104; CHECK-O23SZ-NEXT: Running analysis: LoopAnalysis 105; CHECK-O23SZ-NEXT: Running analysis: ScalarEvolutionAnalysis 106; CHECK-O-NEXT: Running pass: LoopSimplifyPass 107; CHECK-O1-NEXT: Running analysis: LoopAnalysis 108; CHECK-O-NEXT: Running pass: LCSSAPass 109; CHECK-O1-NEXT: Running analysis: ScalarEvolutionAnalysis 110; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 111; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass 112; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass 113; CHECK-O-NEXT: Running pass: LICM 114; CHECK-O-NEXT: Running pass: LoopRotatePass 115; CHECK-O-NEXT: Running pass: LICM 116; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass 117; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 118; CHECK-O-NEXT: Running pass: SimplifyCFGPass 119; CHECK-O-NEXT: Running pass: InstCombinePass 120; CHECK-O-NEXT: Running pass: LoopSimplifyPass 121; CHECK-O-NEXT: Running pass: LCSSAPass 122; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass 123; CHECK-O-NEXT: Running pass: IndVarSimplifyPass 124; CHECK-O-NEXT: Running pass: LoopDeletionPass 125; CHECK-O-NEXT: Running pass: LoopFullUnrollPass 126; CHECK-O-NEXT: Running pass: SROAPass on foo 127; CHECK-O23SZ-NEXT: Running pass: VectorCombinePass 128; CHECK-O23SZ-NEXT: Running pass: MergedLoadStoreMotionPass 129; CHECK-O23SZ-NEXT: Running pass: GVNPass 130; CHECK-O23SZ-NEXT: Running analysis: MemoryDependenceAnalysis 131; CHECK-O1-NEXT: Running pass: MemCpyOptPass 132; CHECK-O1-NEXT: Running analysis: PostDominatorTreeAnalysis 133; CHECK-O-NEXT: Running pass: SCCPPass 134; CHECK-O-NEXT: Running pass: BDCEPass 135; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis 136; CHECK-O-NEXT: Running pass: InstCombinePass 137; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass 138; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis 139; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass 140; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis 141; CHECK-O1-NEXT: Running pass: CoroElidePass 142; CHECK-O-NEXT: Running pass: ADCEPass 143; CHECK-O23SZ-NEXT: Running analysis: PostDominatorTreeAnalysis 144; CHECK-O23SZ-NEXT: Running pass: MemCpyOptPass 145; CHECK-O23SZ-NEXT: Running pass: DSEPass 146; CHECK-O23SZ-NEXT: Running pass: MoveAutoInitPass on foo 147; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass 148; CHECK-O23SZ-NEXT: Running pass: LCSSAPass 149; CHECK-O23SZ-NEXT: Running pass: LICMPass on loop 150; CHECK-O23SZ-NEXT: Running pass: CoroElidePass 151; CHECK-O-NEXT: Running pass: SimplifyCFGPass 152; CHECK-O-NEXT: Running pass: InstCombinePass 153; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass 154; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ShouldNotRunFunctionPassesAnalysis 155; CHECK-O-NEXT: Running analysis: ShouldNotRunFunctionPassesAnalysis 156; CHECK-O-NEXT: Running pass: CoroSplitPass 157; CHECK-O-NEXT: Running pass: CoroAnnotationElidePass 158; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ShouldNotRunFunctionPassesAnalysis 159; CHECK-O-NEXT: Invalidating analysis: ShouldNotRunFunctionPassesAnalysis 160; CHECK-O-NEXT: Invalidating analysis: InlineAdvisorAnalysis 161; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass 162; CHECK-O-NEXT: Running pass: CoroCleanupPass 163; CHECK-POSTLINK-O-NEXT: Running pass: GlobalOptPass 164; CHECK-POSTLINK-O-NEXT: Running pass: GlobalDCEPass 165; CHECK-POSTLINK-O-NEXT: Running pass: EliminateAvailableExternallyPass 166; CHECK-POSTLINK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass 167; CHECK-POSTLINK-O-NEXT: Running pass: RecomputeGlobalsAAPass 168; CHECK-POST-EP-OPT-EARLY-NEXT: Running pass: NoOpModulePass 169; CHECK-POSTLINK-O-NEXT: Running pass: Float2IntPass 170; CHECK-POSTLINK-O-NEXT: Running pass: LowerConstantIntrinsicsPass 171; CHECK-POSTLINK-O3-NEXT: Running pass: ControlHeightReductionPass 172; CHECK-EXT: Running pass: {{.*}}::Bye 173; CHECK-POSTLINK-O-NEXT: Running pass: LoopSimplifyPass 174; CHECK-POSTLINK-O-NEXT: Running pass: LCSSAPass 175; CHECK-POSTLINK-O-NEXT: Running pass: LoopRotatePass 176; CHECK-POSTLINK-O-NEXT: Running pass: LoopDeletionPass 177; CHECK-POSTLINK-O-NEXT: Running pass: LoopDistributePass 178; CHECK-POSTLINK-O-NEXT: Running analysis: LoopAccessAnalysis on foo 179; CHECK-POSTLINK-O-NEXT: Running pass: InjectTLIMappings 180; CHECK-POSTLINK-O-NEXT: Running pass: LoopVectorizePass 181; CHECK-POSTLINK-O-NEXT: Running pass: InferAlignmentPass 182; CHECK-POSTLINK-O-NEXT: Running pass: LoopLoadEliminationPass 183; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass 184; CHECK-POSTLINK-O-NEXT: Running pass: SimplifyCFGPass 185; CHECK-POSTLINK-O2-NEXT: Running pass: SLPVectorizerPass 186; CHECK-POSTLINK-O3-NEXT: Running pass: SLPVectorizerPass 187; CHECK-POSTLINK-Os-NEXT: Running pass: SLPVectorizerPass 188; CHECK-POSTLINK-O-NEXT: Running pass: VectorCombinePass 189; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass 190; CHECK-POSTLINK-O-NEXT: Running pass: LoopUnrollPass 191; CHECK-POSTLINK-O-NEXT: Running pass: WarnMissedTransformationsPass 192; CHECK-POSTLINK-O-NEXT: Running pass: SROAPass 193; CHECK-POSTLINK-O-NEXT: Running pass: InferAlignmentPass 194; CHECK-POSTLINK-O-NEXT: Running pass: InstCombinePass 195; CHECK-POSTLINK-O-NEXT: Running pass: LoopSimplifyPass 196; CHECK-POSTLINK-O-NEXT: Running pass: LCSSAPass 197; CHECK-POSTLINK-O-NEXT: Running pass: LICMPass 198; CHECK-POSTLINK-O-NEXT: Running pass: AlignmentFromAssumptionsPass 199; CHECK-POSTLINK-O-NEXT: Running pass: LoopSinkPass 200; CHECK-POSTLINK-O-NEXT: Running pass: InstSimplifyPass 201; CHECK-POSTLINK-O-NEXT: Running pass: DivRemPairsPass 202; CHECK-POSTLINK-O-NEXT: Running pass: TailCallElimPass 203; CHECK-POSTLINK-O-NEXT: Running pass: SimplifyCFGPass 204; CHECK-POST-EP-OPT-LAST-NEXT: Running pass: NoOpModulePass 205; CHECK-POSTLINK-O-NEXT: Running pass: GlobalDCEPass 206; CHECK-POSTLINK-O-NEXT: Running pass: ConstantMergePass 207; CHECK-POSTLINK-O-NEXT: Running pass: CGProfilePass 208; CHECK-POSTLINK-O-NEXT: Running pass: RelLookupTableConverterPass 209; CHECK-EP-OPT-EARLY-NEXT: Running pass: NoOpModulePass 210; CHECK-EP-OPT-LAST-NEXT: Running pass: NoOpModulePass 211; CHECK-O-NEXT: Running pass: AnnotationRemarksPass on foo 212; CHECK-O-NEXT: Running pass: PrintModulePass 213 214; Make sure we get the IR back out without changes when we print the module. 215; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr { 216; CHECK-O-NEXT: entry: 217; CHECK-O-NEXT: br label %loop 218; CHECK-O: loop: 219; CHECK-O-NEXT: %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 220; CHECK-O-NEXT: %iv.next = add i32 %iv, 1 221; CHECK-O-NEXT: tail call void @bar() 222; CHECK-O-NEXT: %cmp = icmp eq i32 %iv, %n 223; CHECK-O-NEXT: br i1 %cmp, label %exit, label %loop 224; CHECK-O: exit: 225; CHECK-O-NEXT: ret void 226; CHECK-O-NEXT: } 227; 228 229declare void @bar() local_unnamed_addr 230 231define void @foo(i32 %n) local_unnamed_addr { 232entry: 233 br label %loop 234loop: 235 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 236 %iv.next = add i32 %iv, 1 237 tail call void @bar() 238 %cmp = icmp eq i32 %iv, %n 239 br i1 %cmp, label %exit, label %loop 240exit: 241 ret void 242} 243