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; RUN: opt -disable-verify -debug-pass-manager \ 11; RUN: -passes='default<O1>' -S %s 2>&1 \ 12; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O1 13; RUN: opt -disable-verify -debug-pass-manager \ 14; RUN: -passes='default<O2>' -S %s 2>&1 \ 15; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2 16; RUN: opt -disable-verify -debug-pass-manager \ 17; RUN: -passes='default<O3>' -S %s 2>&1 \ 18; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 19; RUN: opt -disable-verify -debug-pass-manager \ 20; RUN: -passes='default<Os>' -S %s 2>&1 \ 21; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-Os 22; RUN: opt -disable-verify -debug-pass-manager \ 23; RUN: -passes='default<Oz>' -S %s 2>&1 \ 24; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-Oz 25; RUN: opt -disable-verify -debug-pass-manager \ 26; RUN: -passes='lto-pre-link<O2>' -S %s 2>&1 \ 27; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2 28 29; RUN: opt -disable-verify -debug-pass-manager \ 30; RUN: -passes-ep-peephole='no-op-function' \ 31; RUN: -passes='default<O3>' -S %s 2>&1 \ 32; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 33; RUN: --check-prefix=CHECK-EP-PEEPHOLE 34; RUN: opt -disable-verify -debug-pass-manager \ 35; RUN: -passes-ep-late-loop-optimizations='no-op-loop' \ 36; RUN: -passes='default<O3>' -S %s 2>&1 \ 37; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 38; RUN: --check-prefix=CHECK-EP-LOOP-LATE 39; RUN: opt -disable-verify -debug-pass-manager \ 40; RUN: -passes-ep-loop-optimizer-end='no-op-loop' \ 41; RUN: -passes='default<O3>' -S %s 2>&1 \ 42; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 43; RUN: --check-prefix=CHECK-EP-LOOP-END 44; RUN: opt -disable-verify -debug-pass-manager \ 45; RUN: -passes-ep-scalar-optimizer-late='no-op-function' \ 46; RUN: -passes='default<O3>' -S %s 2>&1 \ 47; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 48; RUN: --check-prefix=CHECK-EP-SCALAR-LATE 49; RUN: opt -disable-verify -debug-pass-manager \ 50; RUN: -passes-ep-cgscc-optimizer-late='no-op-cgscc' \ 51; RUN: -passes='default<O3>' -S %s 2>&1 \ 52; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 53; RUN: --check-prefix=CHECK-EP-CGSCC-LATE 54; RUN: opt -disable-verify -debug-pass-manager \ 55; RUN: -passes-ep-vectorizer-start='no-op-function' \ 56; RUN: -passes='default<O3>' -S %s 2>&1 \ 57; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 58; RUN: --check-prefix=CHECK-EP-VECTORIZER-START 59; RUN: opt -disable-verify -debug-pass-manager \ 60; RUN: -passes-ep-pipeline-start='no-op-module' \ 61; RUN: -passes='default<O3>' -S %s 2>&1 \ 62; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 63; RUN: --check-prefix=CHECK-EP-PIPELINE-START 64; RUN: opt -disable-verify -debug-pass-manager \ 65; RUN: -passes-ep-pipeline-start='no-op-module' \ 66; RUN: -passes='lto-pre-link<O3>' -S %s 2>&1 \ 67; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O3 \ 68; RUN: --check-prefix=CHECK-EP-PIPELINE-START 69 70; CHECK-O: Starting llvm::Module pass manager run. 71; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}> 72; CHECK-O-NEXT: Starting llvm::Module pass manager run. 73; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass 74; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass 75; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}> 76; CHECK-O-NEXT: Starting llvm::Module pass manager run. 77; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass 78; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis 79; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}> 80; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 81; CHECK-O-NEXT: Starting llvm::Function pass manager run. 82; CHECK-O-NEXT: Running pass: SimplifyCFGPass 83; CHECK-O-NEXT: Running analysis: TargetIRAnalysis 84; CHECK-O-NEXT: Running analysis: AssumptionAnalysis 85; CHECK-O-NEXT: Running pass: SROA 86; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis 87; CHECK-O-NEXT: Running pass: EarlyCSEPass 88; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis 89; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass 90; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass 91; CHECK-O-NEXT: Finished llvm::Function pass manager run. 92; CHECK-O-NEXT: Running pass: IPSCCPPass 93; CHECK-O-NEXT: Running pass: CalledValuePropagationPass 94; CHECK-O-NEXT: Running pass: GlobalOptPass 95; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PromotePass> 96; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass 97; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}> 98; CHECK-O-NEXT: Starting llvm::Function pass manager run. 99; CHECK-O-NEXT: Running pass: InstCombinePass 100; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis 101; CHECK-O-NEXT: Running analysis: AAManager 102; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass 103; CHECK-O-NEXT: Running pass: SimplifyCFGPass 104; CHECK-O-NEXT: Finished llvm::Function pass manager run. 105; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA 106; CHECK-O-NEXT: Running analysis: GlobalsAA 107; CHECK-O-NEXT: Running analysis: CallGraphAnalysis 108; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis 109; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis 110; CHECK-O-NEXT: Running pass: ModuleToPostOrderCGSCCPassAdaptor<{{.*}}LazyCallGraph{{.*}}> 111; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 112; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis 113; CHECK-O-NEXT: Starting CGSCC pass manager run. 114; CHECK-O-NEXT: Running pass: InlinerPass 115; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph{{.*}}> 116; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy 117; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass 118; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass 119; CHECK-O-NEXT: Running pass: CGSCCToFunctionPassAdaptor<{{.*}}PassManager{{.*}}> 120; CHECK-O-NEXT: Starting llvm::Function pass manager run. 121; CHECK-O-NEXT: Running pass: SROA 122; CHECK-O-NEXT: Running pass: EarlyCSEPass 123; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis 124; CHECK-O-NEXT: Running pass: SpeculativeExecutionPass 125; CHECK-O-NEXT: Running pass: JumpThreadingPass 126; CHECK-O-NEXT: Running analysis: LazyValueAnalysis 127; CHECK-O-NEXT: Running pass: CorrelatedValuePropagationPass 128; CHECK-O-NEXT: Running pass: SimplifyCFGPass 129; CHECK-O3-NEXT: AggressiveInstCombinePass 130; CHECK-O-NEXT: Running pass: InstCombinePass 131; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass 132; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass 133; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass 134; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass 135; CHECK-O-NEXT: Running pass: TailCallElimPass 136; CHECK-O-NEXT: Running pass: SimplifyCFGPass 137; CHECK-O-NEXT: Running pass: ReassociatePass 138; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis 139; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}> 140; CHECK-O-NEXT: Starting llvm::Function pass manager run. 141; CHECK-O-NEXT: Running pass: LoopSimplifyPass 142; CHECK-O-NEXT: Running analysis: LoopAnalysis 143; CHECK-O-NEXT: Running pass: LCSSAPass 144; CHECK-O-NEXT: Finished llvm::Function pass manager run. 145; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis 146; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy 147; CHECK-O-NEXT: Starting Loop pass manager run. 148; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass 149; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass 150; CHECK-O-NEXT: Running pass: LoopRotatePass 151; CHECK-O-NEXT: Running pass: LICM 152; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 153; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass 154; CHECK-O-NEXT: Finished Loop pass manager run. 155; CHECK-O-NEXT: Running pass: SimplifyCFGPass 156; CHECK-O-NEXT: Running pass: InstCombinePass 157; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopStandardAnalysisResults{{.*}}> 158; CHECK-O-NEXT: Starting llvm::Function pass manager run. 159; CHECK-O-NEXT: Running pass: LoopSimplifyPass 160; CHECK-O-NEXT: Running pass: LCSSAPass 161; CHECK-O-NEXT: Finished llvm::Function pass manager run. 162; CHECK-O-NEXT: Starting Loop pass manager run. 163; CHECK-O-NEXT: Running pass: IndVarSimplifyPass 164; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass 165; CHECK-EP-LOOP-LATE-NEXT: Running pass: NoOpLoopPass 166; CHECK-O-NEXT: Running pass: LoopDeletionPass 167; CHECK-O-NEXT: Running pass: LoopFullUnrollPass 168; CHECK-EP-LOOP-END-NEXT: Running pass: NoOpLoopPass 169; CHECK-O-NEXT: Finished Loop pass manager run. 170; CHECK-Os-NEXT: Running pass: MergedLoadStoreMotionPass 171; CHECK-Os-NEXT: Running pass: GVN 172; CHECK-Os-NEXT: Running analysis: MemoryDependenceAnalysis 173; CHECK-Os-NEXT: Running analysis: PhiValuesAnalysis 174; CHECK-Oz-NEXT: Running pass: MergedLoadStoreMotionPass 175; CHECK-Oz-NEXT: Running pass: GVN 176; CHECK-Oz-NEXT: Running analysis: MemoryDependenceAnalysis 177; CHECK-Oz-NEXT: Running analysis: PhiValuesAnalysis 178; CHECK-O2-NEXT: Running pass: MergedLoadStoreMotionPass 179; CHECK-O2-NEXT: Running pass: GVN 180; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis 181; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis 182; CHECK-O3-NEXT: Running pass: MergedLoadStoreMotionPass 183; CHECK-O3-NEXT: Running pass: GVN 184; CHECK-O3-NEXT: Running analysis: MemoryDependenceAnalysis 185; CHECK-O3-NEXT: Running analysis: PhiValuesAnalysis 186; CHECK-O-NEXT: Running pass: MemCpyOptPass 187; CHECK-O1-NEXT: Running analysis: MemoryDependenceAnalysis 188; CHECK-O1-NEXT: Running analysis: PhiValuesAnalysis 189; CHECK-O-NEXT: Running pass: SCCPPass 190; CHECK-O-NEXT: Running pass: BDCEPass 191; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis 192; CHECK-O-NEXT: Running pass: InstCombinePass 193; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass 194; CHECK-O-NEXT: Running pass: JumpThreadingPass 195; CHECK-O-NEXT: Running pass: CorrelatedValuePropagationPass 196; CHECK-O-NEXT: Running pass: DSEPass 197; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass{{.*}}> 198; CHECK-O-NEXT: Starting llvm::Function pass manager run. 199; CHECK-O-NEXT: Running pass: LoopSimplifyPass 200; CHECK-O-NEXT: Running pass: LCSSAPass 201; CHECK-O-NEXT: Finished llvm::Function pass manager run. 202; CHECK-EP-SCALAR-LATE-NEXT: Running pass: NoOpFunctionPass 203; CHECK-O-NEXT: Running pass: ADCEPass 204; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis 205; CHECK-O-NEXT: Running pass: SimplifyCFGPass 206; CHECK-O-NEXT: Running pass: InstCombinePass 207; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass 208; CHECK-O-NEXT: Finished llvm::Function pass manager run. 209; CHECK-EP-CGSCC-LATE-NEXT: Running pass: NoOpCGSCCPass 210; CHECK-O-NEXT: Finished CGSCC pass manager run. 211; CHECK-O-NEXT: Finished llvm::Module pass manager run. 212; CHECK-O-NEXT: Running pass: PassManager<{{.*}}Module{{.*}}> 213; CHECK-O-NEXT: Starting llvm::Module pass manager run. 214; CHECK-O-NEXT: Running pass: GlobalOptPass 215; CHECK-O-NEXT: Running pass: GlobalDCEPass 216; CHECK-O-NEXT: Running pass: EliminateAvailableExternallyPass 217; CHECK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass 218; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA 219; CHECK-O-NEXT: Running pass: ModuleToFunctionPassAdaptor<{{.*}}PassManager{{.*}}> 220; CHECK-O-NEXT: Starting llvm::Function pass manager run. 221; CHECK-O-NEXT: Running pass: Float2IntPass 222; CHECK-EP-VECTORIZER-START-NEXT: Running pass: NoOpFunctionPass 223; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LoopRotatePass 224; CHECK-O-NEXT: Starting llvm::Function pass manager run. 225; CHECK-O-NEXT: Running pass: LoopSimplifyPass 226; CHECK-O-NEXT: Running pass: LCSSAPass 227; CHECK-O-NEXT: Finished llvm::Function pass manager run. 228; CHECK-O-NEXT: Running pass: LoopDistributePass 229; CHECK-O-NEXT: Running pass: LoopVectorizePass 230; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis 231; CHECK-O-NEXT: Running analysis: BranchProbabilityAnalysis 232; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass 233; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis 234; CHECK-O-NEXT: Running pass: InstCombinePass 235; CHECK-O-NEXT: Running pass: SimplifyCFGPass 236; CHECK-O-NEXT: Running pass: SLPVectorizerPass 237; CHECK-O-NEXT: Running pass: InstCombinePass 238; CHECK-O-NEXT: Running pass: LoopUnrollPass 239; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy 240; CHECK-O-NEXT: Running pass: InstCombinePass 241; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis 242; CHECK-O-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}LICMPass 243; CHECK-O-NEXT: Starting llvm::Function pass manager run. 244; CHECK-O-NEXT: Running pass: LoopSimplifyPass 245; CHECK-O-NEXT: Running pass: LCSSAPass 246; CHECK-O-NEXT: Finished llvm::Function pass manager run. 247; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass 248; CHECK-O-NEXT: Running pass: LoopSinkPass 249; CHECK-O-NEXT: Running pass: InstSimplifyPass 250; CHECK-O-NEXT: Running pass: DivRemPairsPass 251; CHECK-O-NEXT: Running pass: SimplifyCFGPass 252; CHECK-O-NEXT: Running pass: SpeculateAroundPHIsPass 253; CHECK-O-NEXT: Finished llvm::Function pass manager run. 254; CHECK-O-NEXT: Running pass: CGProfilePass 255; CHECK-O-NEXT: Running pass: GlobalDCEPass 256; CHECK-O-NEXT: Running pass: ConstantMergePass 257; CHECK-O-NEXT: Finished llvm::Module pass manager run. 258; CHECK-O-NEXT: Finished llvm::Module pass manager run. 259; CHECK-O-NEXT: Running pass: PrintModulePass 260; 261; Make sure we get the IR back out without changes when we print the module. 262; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr { 263; CHECK-O-NEXT: entry: 264; CHECK-O-NEXT: br label %loop 265; CHECK-O: loop: 266; CHECK-O-NEXT: %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 267; CHECK-O-NEXT: %iv.next = add i32 %iv, 1 268; CHECK-O-NEXT: tail call void @bar() 269; CHECK-O-NEXT: %cmp = icmp eq i32 %iv, %n 270; CHECK-O-NEXT: br i1 %cmp, label %exit, label %loop 271; CHECK-O: exit: 272; CHECK-O-NEXT: ret void 273; CHECK-O-NEXT: } 274; 275; CHECK-O-NEXT: Finished llvm::Module pass manager run. 276 277declare void @bar() local_unnamed_addr 278 279define void @foo(i32 %n) local_unnamed_addr { 280entry: 281 br label %loop 282loop: 283 %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] 284 %iv.next = add i32 %iv, 1 285 tail call void @bar() 286 %cmp = icmp eq i32 %iv, %n 287 br i1 %cmp, label %exit, label %loop 288exit: 289 ret void 290} 291