| ; The IR below was crafted so as: |
| ; 1) To have a loop, so we create a loop pass manager |
| ; 2) To be "immutable" in the sense that no pass in the standard |
| ; pipeline will modify it. |
| ; Since no transformations take place, we don't expect any analyses |
| ; to be invalidated. |
| ; Any invalidation that shows up here is a bug, unless we started modifying |
| ; the IR, in which case we need to make it immutable harder. |
| |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes='default<O1>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O1,%llvmcheckext |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes='default<O2>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O2,CHECK-O23SZ,%llvmcheckext |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,CHECK-O23SZ,%llvmcheckext |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes='default<Os>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-Os,CHECK-O23SZ,%llvmcheckext |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes='default<Oz>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-Oz,CHECK-O23SZ,%llvmcheckext |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes='lto-pre-link<O2>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-LTO,CHECK-O2,CHECK-O23SZ,%llvmcheckext |
| |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-peephole='no-op-function' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-PEEPHOLE,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-late-loop-optimizations='no-op-loop' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-LOOP-LATE,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-loop-optimizer-end='no-op-loop' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-LOOP-END,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-scalar-optimizer-late='no-op-function' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-SCALAR-LATE,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-cgscc-optimizer-late='no-op-cgscc' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-CGSCC-LATE,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-vectorizer-start='no-op-function' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-VECTORIZER-START,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-pipeline-start='no-op-module' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-PIPELINE-START,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-pipeline-early-simplification='no-op-module' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-PIPELINE-EARLY-SIMPLIFICATION,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-pipeline-start='no-op-module' \ |
| ; RUN: -passes='lto-pre-link<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-LTO,CHECK-O3,%llvmcheckext,CHECK-EP-PIPELINE-START,CHECK-O23SZ |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes-ep-optimizer-last='no-op-function' \ |
| ; RUN: -passes='default<O3>' -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,%llvmcheckext,CHECK-EP-OPTIMIZER-LAST,CHECK-O23SZ |
| |
| ; RUN: opt -disable-verify -verify-cfg-preserved=1 -eagerly-invalidate-analyses=0 -debug-pass-manager \ |
| ; RUN: -passes='default<O3>' -enable-matrix -S %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefixes=CHECK-O,CHECK-DEFAULT,CHECK-O3,CHECK-O23SZ,%llvmcheckext,CHECK-MATRIX |
| |
| ; Suppress FileCheck --allow-unused-prefixes=false diagnostics. |
| ; CHECK-Oz: {{^}} |
| |
| ; CHECK-O: Running pass: Annotation2Metadata |
| ; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass |
| ; CHECK-EP-PIPELINE-START-NEXT: Running pass: NoOpModulePass |
| ; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass |
| ; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy |
| ; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis |
| ; CHECK-O-NEXT: Running analysis: PreservedCFGCheckerAnalysis on foo |
| ; CHECK-O-NEXT: Running pass: LowerExpectIntrinsicPass |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O-NEXT: Running analysis: TargetIRAnalysis |
| ; CHECK-O-NEXT: Running analysis: AssumptionAnalysis |
| ; CHECK-O-NEXT: Running pass: SROAPass |
| ; CHECK-O-NEXT: Running analysis: DominatorTreeAnalysis |
| ; CHECK-O-NEXT: Running pass: EarlyCSEPass |
| ; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis |
| ; CHECK-O-NEXT: Running pass: CoroEarlyPass |
| ; CHECK-O3-NEXT: Running pass: CallSiteSplittingPass |
| ; CHECK-O-NEXT: Running pass: OpenMPOptPass |
| ; CHECK-EP-PIPELINE-EARLY-SIMPLIFICATION-NEXT: Running pass: NoOpModulePass |
| ; CHECK-O-NEXT: Running pass: IPSCCPPass |
| ; CHECK-O-NEXT: Running pass: CalledValuePropagationPass |
| ; CHECK-O-NEXT: Running pass: GlobalOptPass |
| ; CHECK-O-NEXT: Running pass: PromotePass |
| ; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-O-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis |
| ; CHECK-O-NEXT: Running analysis: AAManager |
| ; CHECK-O-NEXT: Running analysis: BasicAA |
| ; CHECK-O-NEXT: Running analysis: ScopedNoAliasAA |
| ; CHECK-O-NEXT: Running analysis: TypeBasedAA |
| ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy |
| ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass |
| ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis |
| ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA |
| ; CHECK-O-NEXT: Running analysis: GlobalsAA |
| ; CHECK-O-NEXT: Running analysis: CallGraphAnalysis |
| ; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}AAManager |
| ; CHECK-O-NEXT: Invalidating analysis: AAManager |
| ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis |
| ; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis |
| ; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy |
| ; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis |
| ; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy |
| ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph::SCC{{.*}}> |
| ; CHECK-O-NEXT: Running pass: DevirtSCCRepeatedPass |
| ; CHECK-O-NEXT: Running pass: InlinerPass |
| ; CHECK-O-NEXT: Running pass: InlinerPass |
| ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass |
| ; CHECK-O-NEXT: Running analysis: AAManager |
| ; CHECK-O3-NEXT: Running pass: ArgumentPromotionPass |
| ; CHECK-O2-NEXT: Running pass: OpenMPOptCGSCCPass on (foo) |
| ; CHECK-O3-NEXT: Running pass: OpenMPOptCGSCCPass on (foo) |
| ; CHECK-EP-CGSCC-LATE-NEXT: Running pass: NoOpCGSCCPass |
| ; CHECK-O-NEXT: Running pass: SROAPass |
| ; CHECK-O-NEXT: Running pass: EarlyCSEPass |
| ; CHECK-O-NEXT: Running analysis: MemorySSAAnalysis |
| ; CHECK-O23SZ-NEXT: Running pass: SpeculativeExecutionPass |
| ; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass |
| ; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis |
| ; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass |
| ; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O3-NEXT: AggressiveInstCombinePass |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-O1-NEXT: Running pass: LibCallsShrinkWrapPass |
| ; CHECK-O2-NEXT: Running pass: LibCallsShrinkWrapPass |
| ; CHECK-O3-NEXT: Running pass: LibCallsShrinkWrapPass |
| ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass |
| ; CHECK-O23SZ-NEXT: Running pass: TailCallElimPass |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O-NEXT: Running pass: ReassociatePass |
| ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis |
| ; CHECK-O-NEXT: Running pass: LoopSimplifyPass |
| ; CHECK-O-NEXT: Running analysis: LoopAnalysis |
| ; CHECK-O-NEXT: Running pass: LCSSAPass |
| ; CHECK-O-NEXT: Running analysis: ScalarEvolutionAnalysis |
| ; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy |
| ; CHECK-O-NEXT: Running pass: LoopInstSimplifyPass |
| ; CHECK-O-NEXT: Running pass: LoopSimplifyCFGPass |
| ; CHECK-O-NEXT: Running pass: LICM |
| ; CHECK-O-NEXT: Running pass: LoopRotatePass |
| ; CHECK-O-NEXT: Running pass: LICM |
| ; CHECK-O-NEXT: Running pass: SimpleLoopUnswitchPass |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-O-NEXT: Running pass: LoopSimplifyPass |
| ; CHECK-O-NEXT: Running pass: LCSSAPass |
| ; CHECK-O-NEXT: Running pass: LoopIdiomRecognizePass |
| ; CHECK-O-NEXT: Running pass: IndVarSimplifyPass |
| ; CHECK-EP-LOOP-LATE-NEXT: Running pass: NoOpLoopPass |
| ; CHECK-O-NEXT: Running pass: LoopDeletionPass |
| ; CHECK-O-NEXT: Running pass: LoopFullUnrollPass |
| ; CHECK-EP-LOOP-END-NEXT: Running pass: NoOpLoopPass |
| ; CHECK-O-NEXT: Running pass: SROAPass on foo |
| ; CHECK-MATRIX: Running pass: VectorCombinePass |
| ; CHECK-O23SZ-NEXT: Running pass: MergedLoadStoreMotionPass |
| ; CHECK-O23SZ-NEXT: Running pass: GVNPass |
| ; CHECK-O23SZ-NEXT: Running analysis: MemoryDependenceAnalysis |
| ; CHECK-O23SZ-NEXT: Running analysis: PhiValuesAnalysis |
| ; CHECK-O1-NEXT: Running pass: MemCpyOptPass |
| ; CHECK-O-NEXT: Running pass: SCCPPass |
| ; CHECK-O-NEXT: Running pass: BDCEPass |
| ; CHECK-O-NEXT: Running analysis: DemandedBitsAnalysis |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass |
| ; CHECK-O23SZ-NEXT: Running pass: JumpThreadingPass |
| ; CHECK-O23SZ-NEXT: Running analysis: LazyValueAnalysis |
| ; CHECK-O23SZ-NEXT: Running pass: CorrelatedValuePropagationPass |
| ; CHECK-O23SZ-NEXT: Invalidating analysis: LazyValueAnalysis |
| ; CHECK-O1-NEXT: Running pass: CoroElidePass |
| ; CHECK-O-NEXT: Running pass: ADCEPass |
| ; CHECK-O-NEXT: Running analysis: PostDominatorTreeAnalysis |
| ; CHECK-O23SZ-NEXT: Running pass: MemCpyOptPass |
| ; CHECK-O23SZ-NEXT: Running pass: DSEPass |
| ; CHECK-O23SZ-NEXT: Running pass: LoopSimplifyPass |
| ; CHECK-O23SZ-NEXT: Running pass: LCSSAPass |
| ; CHECK-O23SZ-NEXT: Running pass: LICMPass |
| ; CHECK-O23SZ-NEXT: Running pass: CoroElidePass |
| ; CHECK-EP-SCALAR-LATE-NEXT: Running pass: NoOpFunctionPass |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass |
| ; CHECK-O-NEXT: Running pass: CoroSplitPass |
| ; CHECK-O-NEXT: Invalidating analysis: InlineAdvisorAnalysis |
| ; CHECK-O-NEXT: Running pass: GlobalOptPass |
| ; CHECK-O-NEXT: Running pass: GlobalDCEPass |
| ; CHECK-DEFAULT-NEXT: Running pass: EliminateAvailableExternallyPass |
| ; CHECK-LTO-NOT: Running pass: EliminateAvailableExternallyPass |
| ; CHECK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass |
| ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA |
| ; CHECK-O-NEXT: Running pass: Float2IntPass |
| ; CHECK-O-NEXT: Running pass: LowerConstantIntrinsicsPass on foo |
| ; CHECK-MATRIX: Running pass: LowerMatrixIntrinsicsPass on f |
| ; CHECK-MATRIX-NEXT: Running pass: EarlyCSEPass on f |
| ; CHECK-EP-VECTORIZER-START-NEXT: Running pass: NoOpFunctionPass |
| ; CHECK-EXT: Running pass: {{.*}}::Bye on foo |
| ; CHECK-NOEXT: {{^}} |
| ; CHECK-O-NEXT: Running pass: LoopSimplifyPass |
| ; CHECK-O-NEXT: Running pass: LCSSAPass |
| ; CHECK-O-NEXT: Running pass: LoopRotatePass |
| ; CHECK-O-NEXT: Running pass: LoopDeletionPass |
| ; CHECK-O-NEXT: Running pass: LoopDistributePass |
| ; CHECK-O-NEXT: Running pass: InjectTLIMappings |
| ; CHECK-O-NEXT: Running pass: LoopVectorizePass |
| ; CHECK-O-NEXT: Running analysis: BlockFrequencyAnalysis |
| ; CHECK-O-NEXT: Running analysis: BranchProbabilityAnalysis |
| ; CHECK-O-NEXT: Running pass: LoopLoadEliminationPass |
| ; CHECK-O-NEXT: Running analysis: LoopAccessAnalysis |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O2-NEXT: Running pass: SLPVectorizerPass |
| ; CHECK-O3-NEXT: Running pass: SLPVectorizerPass |
| ; CHECK-Os-NEXT: Running pass: SLPVectorizerPass |
| ; CHECK-O-NEXT: Running pass: VectorCombinePass |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-O-NEXT: Running pass: LoopUnrollPass |
| ; CHECK-O-NEXT: Running pass: WarnMissedTransformationsPass |
| ; CHECK-O-NEXT: Running pass: InstCombinePass |
| ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}OptimizationRemarkEmitterAnalysis |
| ; CHECK-O-NEXT: Running pass: LoopSimplifyPass |
| ; CHECK-O-NEXT: Running pass: LCSSAPass |
| ; CHECK-O-NEXT: Running pass: LICMPass |
| ; CHECK-O-NEXT: Running pass: AlignmentFromAssumptionsPass |
| ; CHECK-O-NEXT: Running pass: LoopSinkPass |
| ; CHECK-O-NEXT: Running pass: InstSimplifyPass |
| ; CHECK-O-NEXT: Running pass: DivRemPairsPass |
| ; CHECK-O-NEXT: Running pass: SimplifyCFGPass |
| ; CHECK-O-NEXT: Running pass: CoroCleanupPass |
| ; CHECK-EP-OPTIMIZER-LAST: Running pass: NoOpFunctionPass |
| ; CHECK-O-NEXT: Running pass: CGProfilePass |
| ; CHECK-O-NEXT: Running pass: GlobalDCEPass |
| ; CHECK-O-NEXT: Running pass: ConstantMergePass |
| ; CHECK-DEFAULT-NEXT: Running pass: RelLookupTableConverterPass |
| ; CHECK-LTO-NOT: Running pass: RelLookupTableConverterPass |
| ; CHECK-DEFAULT-NEXT: Running analysis: TargetIRAnalysis |
| ; CHECK-LTO-NOT: Running analysis: TargetIRAnalysis |
| ; CHECK-O-NEXT: Running pass: AnnotationRemarksPass on foo |
| ; CHECK-LTO-NEXT: Running pass: CanonicalizeAliasesPass |
| ; CHECK-LTO-NEXT: Running pass: NameAnonGlobalPass |
| ; CHECK-O-NEXT: Running pass: PrintModulePass |
| ; |
| ; Make sure we get the IR back out without changes when we print the module. |
| ; CHECK-O-LABEL: define void @foo(i32 %n) local_unnamed_addr { |
| ; CHECK-O-NEXT: entry: |
| ; CHECK-O-NEXT: br label %loop |
| ; CHECK-O: loop: |
| ; CHECK-O-NEXT: %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] |
| ; CHECK-O-NEXT: %iv.next = add i32 %iv, 1 |
| ; CHECK-O-NEXT: tail call void @bar() |
| ; CHECK-O-NEXT: %cmp = icmp eq i32 %iv, %n |
| ; CHECK-O-NEXT: br i1 %cmp, label %exit, label %loop |
| ; CHECK-O: exit: |
| ; CHECK-O-NEXT: ret void |
| ; CHECK-O-NEXT: } |
| |
| declare void @bar() local_unnamed_addr |
| |
| define void @foo(i32 %n) local_unnamed_addr { |
| entry: |
| br label %loop |
| loop: |
| %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] |
| %iv.next = add i32 %iv, 1 |
| tail call void @bar() |
| %cmp = icmp eq i32 %iv, %n |
| br i1 %cmp, label %exit, label %loop |
| exit: |
| ret void |
| } |