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; Prelink pipelines: 11; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 12; RUN: -passes='thinlto-pre-link<O1>' -S %s 2>&1 \ 13; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,CHECK-O-NODIS 14; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 15; RUN: -unified-lto -passes='lto-pre-link<O1>' -S %s 2>&1 \ 16; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O1,CHECK-O-NODIS 17; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 18; RUN: -passes='thinlto-pre-link<O2>' -S %s 2>&1 \ 19; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-O-NODIS 20; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 21; RUN: -unified-lto -passes='lto-pre-link<O2>' -S %s 2>&1 \ 22; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O2,CHECK-O23SZ,CHECK-O-NODIS 23; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 24; RUN: -passes='thinlto-pre-link<O3>' -S -passes-ep-pipeline-start='no-op-module' %s 2>&1 \ 25; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-EP-PIPELINE-START 26; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 27; RUN: -unified-lto -passes='lto-pre-link<O3>' -S -passes-ep-pipeline-start='no-op-module' %s 2>&1 \ 28; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-EP-PIPELINE-START 29; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 30; RUN: -passes='thinlto-pre-link<O3>' -S -passes-ep-optimizer-early='no-op-module' %s 2>&1 \ 31; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-EP-OPT-EARLY 32; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 33; RUN: -unified-lto -passes='lto-pre-link<O3>' -S -passes-ep-optimizer-early='no-op-module' %s 2>&1 \ 34; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-EP-OPT-EARLY 35; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 36; RUN: -passes='thinlto-pre-link<O3>' -S -passes-ep-optimizer-last='no-op-module' %s 2>&1 \ 37; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-EP-OPT-LAST 38; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 39; RUN: -unified-lto -passes='lto-pre-link<O3>' -S -passes-ep-optimizer-last='no-op-module' %s 2>&1 \ 40; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O3,CHECK-O23SZ,CHECK-O-NODIS,CHECK-EP-OPT-LAST 41; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 42; RUN: -passes='thinlto-pre-link<Os>' -S %s 2>&1 \ 43; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O23SZ,CHECK-O-NODIS 44; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 45; RUN: -unified-lto -passes='lto-pre-link<Os>' -S %s 2>&1 \ 46; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O23SZ,CHECK-O-NODIS 47; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 48; RUN: -passes='thinlto-pre-link<Oz>' -S %s 2>&1 \ 49; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O23SZ,CHECK-O-NODIS 50; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager \ 51; RUN: -unified-lto -passes='lto-pre-link<Oz>' -S %s 2>&1 \ 52; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-O23SZ,CHECK-O-NODIS 53; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager -debug-info-for-profiling \ 54; RUN: -passes='thinlto-pre-link<O2>' -S %s 2>&1 \ 55; RUN: | FileCheck %s --check-prefixes=CHECK-DIS,CHECK-O,CHECK-O2,CHECK-O23SZ 56; RUN: opt -disable-verify -verify-analysis-invalidation=0 -eagerly-invalidate-analyses=0 -debug-pass-manager -debug-info-for-profiling \ 57; RUN: -unified-lto -passes='lto-pre-link<O2>' -S %s 2>&1 \ 58; RUN: | FileCheck %s --check-prefixes=CHECK-DIS,CHECK-O,CHECK-O2,CHECK-O23SZ 59; 60 61; Suppress FileCheck --allow-unused-prefixes=false diagnostics. 62; CHECK-NOEXT: {{^}} 63 64; CHECK-O: Running pass: Annotation2MetadataPass 65; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass 66; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass 67; CHECK-DIS-NEXT: Running analysis: InnerAnalysisManagerProxy 68; CHECK-DIS-NEXT: Running pass: AddDiscriminatorsPass 69; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass 70; CHECK-O-NODIS-NEXT: Running analysis: InnerAnalysisManagerProxy 71; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis 72; CHECK-O-NEXT: Running pass: CoroEarlyPass 73; CHECK-O-NEXT: Running pass: EntryExitInstrumenterPass 74; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass 75; CHECK-O-NEXT: Running pass: SimplifyCFGPass 76; CHECK-O-NEXT: Running analysis: TargetIRAnalysis 77; CHECK-O-NEXT: Running analysis: AssumptionAnalysis 78; CHECK-O-NEXT: Running pass: SROAPass 79; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis 80; CHECK-O-NEXT: Running pass: EarlyCSEPass 81; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis 82; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass 83; CHECK-O-NEXT: Running pass: OpenMPOptPass 84; CHECK-O-NEXT: Running pass: IPSCCPPass 85; CHECK-O-NEXT: Running pass: CalledValuePropagationPass 86; CHECK-O-NEXT: Running pass: GlobalOptPass 87; CHECK-O-NEXT: Running pass: PromotePass 88; CHECK-O-NEXT: Running pass: InstCombinePass 89; CHECK-O-NEXT: Running analysis: LastRunTrackingAnalysis 90; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis 91; CHECK-O-NEXT: Running analysis: AAManager 92; CHECK-O-NEXT: Running analysis: BasicAA 93; CHECK-O-NEXT: Running analysis: ScopedNoAliasAA 94; CHECK-O-NEXT: Running analysis: TypeBasedAA 95; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 96; CHECK-O-NEXT: Running pass: SimplifyCFGPass 97; CHECK-O-NEXT: Running pass: AlwaysInlinerPass 98; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis 99; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass 100; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis 101; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA 102; CHECK-O-NEXT: Running analysis: GlobalsAA 103; CHECK-O-NEXT: Running analysis: CallGraphAnalysis 104; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}AAManager 105; CHECK-O-NEXT: Invalidating analysis: AAManager 106; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis 107; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 108; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis 109; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy 110; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 111; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass 112; CHECK-O-NEXT: Running pass: InlinerPass 113; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass 114; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass 115; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass on (foo) 116; CHECK-O3-NEXT: Running pass: OpenMPOptCGSCCPass on (foo) 117; CHECK-O-NEXT: Running pass: SROAPass 118; CHECK-O-NEXT: Running pass: EarlyCSEPass 119; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis 120; CHECK-O-NEXT: Running analysis: AAManager 121; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass 122; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass 123; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis 124; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass 125; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis 126; CHECK-O-NEXT: Running pass: SimplifyCFGPass 127; CHECK-O-NEXT: Running pass: InstCombinePass 128; CHECK-O23SZ-NEXT: Running pass: AggressiveInstCombinePass 129; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass 130; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass 131; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass 132; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass 133; CHECK-O-NEXT: Running pass: SimplifyCFGPass 134; CHECK-O-NEXT: Running pass: ReassociatePass 135; CHECK-O23SZ-NEXT: Running pass: ConstraintEliminationPass 136; CHECK-O23SZ-NEXT: Running analysis: LoopAnalysis 137; CHECK-O23SZ-NEXT: Running analysis: ScalarEvolutionAnalysis 138; CHECK-O-NEXT: Running pass: LoopSimplifyPass 139; CHECK-O1-NEXT: Running analysis: LoopAnalysis 140; CHECK-O-NEXT: Running pass: LCSSAPass 141; CHECK-O1-NEXT: Running analysis: ScalarEvolutionAnalysis 142; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 143; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass 144; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass 145; CHECK-O-NEXT: Running pass: LICM 146; CHECK-O-NEXT: Running pass: LoopRotatePass 147; CHECK-O-NEXT: Running pass: LICM 148; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass 149; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 150; CHECK-O-NEXT: Running pass: SimplifyCFGPass 151; CHECK-O-NEXT: Running pass: InstCombinePass 152; CHECK-O-NEXT: Running pass: LoopSimplifyPass 153; CHECK-O-NEXT: Running pass: LCSSAPass 154; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass 155; CHECK-O-NEXT: Running pass: IndVarSimplifyPass 156; CHECK-O-NEXT: Running pass: LoopDeletionPass 157; CHECK-O-NEXT: Running pass: LoopFullUnrollPass 158; CHECK-O-NEXT: Running pass: SROAPass on foo 159; CHECK-O23SZ-NEXT: Running pass: VectorCombinePass 160; CHECK-O23SZ-NEXT: Running pass: MergedLoadStoreMotionPass 161; CHECK-O23SZ-NEXT: Running pass: GVNPass 162; CHECK-O23SZ-NEXT: Running analysis: MemoryDependenceAnalysis 163; CHECK-O1-NEXT: Running pass: MemCpyOptPass 164; CHECK-O1-NEXT: Running analysis: PostDominatorTreeAnalysis 165; CHECK-O-NEXT: Running pass: SCCPPass 166; CHECK-O-NEXT: Running pass: BDCEPass 167; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis 168; CHECK-O-NEXT: Running pass: InstCombinePass 169; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass 170; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis 171; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass 172; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis 173; CHECK-O1-NEXT: Running pass: CoroElidePass 174; CHECK-O-NEXT: Running pass: ADCEPass 175; CHECK-O23SZ-NEXT: Running analysis: PostDominatorTreeAnalysis 176; CHECK-O23SZ-NEXT: Running pass: MemCpyOptPass 177; CHECK-O23SZ-NEXT: Running pass: DSEPass 178; CHECK-O23SZ-NEXT: Running pass: MoveAutoInitPass 179; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass 180; CHECK-O23SZ-NEXT: Running pass: LCSSAPass 181; CHECK-O23SZ-NEXT: Running pass: LICMPass on loop 182; CHECK-O23SZ-NEXT: Running pass: CoroElidePass 183; CHECK-O-NEXT: Running pass: SimplifyCFGPass 184; CHECK-O-NEXT: Running pass: InstCombinePass 185; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass 186; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ShouldNotRunFunctionPassesAnalysis 187; CHECK-O-NEXT: Running analysis: ShouldNotRunFunctionPassesAnalysis 188; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ShouldNotRunFunctionPassesAnalysis 189; CHECK-O-NEXT: Invalidating analysis: ShouldNotRunFunctionPassesAnalysis 190; CHECK-O-NEXT: Invalidating analysis: InlineAdvisorAnalysis 191; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass 192; CHECK-O-NEXT: Running pass: GlobalOptPass 193; CHECK-O-NEXT: Running pass: GlobalDCEPass 194; CHECK-EXT: Running pass: {{.*}}::Bye 195; CHECK-EP-OPT-EARLY-NEXT: Running pass: NoOpModulePass 196; CHECK-EP-OPT-LAST-NEXT: Running pass: NoOpModulePass 197; CHECK-O-NEXT: Running pass: AnnotationRemarksPass on foo 198; CHECK-O-NEXT: Running pass: CanonicalizeAliasesPass 199; CHECK-O-NEXT: Running pass: NameAnonGlobalPass 200; CHECK-O-NEXT: Running pass: PrintModulePass 201 202; Make sure we get the IR back out without changes when we print the module. 203; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr { 204; CHECK-O-NEXT: entry: 205; CHECK-O-NEXT: br label %loop 206; CHECK-O: loop: 207; CHECK-O-NEXT: %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 208; CHECK-O-NEXT: %iv.next = add i32 %iv, 1 209; CHECK-O-NEXT: tail call void @bar() 210; CHECK-O-NEXT: %cmp = icmp eq i32 %iv, %n 211; CHECK-O-NEXT: br i1 %cmp, label %exit, label %loop 212; CHECK-O: exit: 213; CHECK-O-NEXT: ret void 214; CHECK-O-NEXT: } 215; 216 217declare void @bar() local_unnamed_addr 218 219define void @foo(i32 %n) local_unnamed_addr { 220entry: 221 br label %loop 222loop: 223 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 224 %iv.next = add i32 %iv, 1 225 tail call void @bar() 226 %cmp = icmp eq i32 %iv, %n 227 br i1 %cmp, label %exit, label %loop 228exit: 229 ret void 230} 231