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llvm-mirror/test/Other/new-pm-lto-defaults.ll
Yuanfang Chen e1803bebb8 [NewPM][PassInstrument] Add PrintPass callback to StandardInstrumentations
Problem:
Right now, our "Running pass" is not accurate when passes are wrapped in adaptor because adaptor is never skipped and a pass could be skipped. The other problem is that "Running pass" for a adaptor is before any "Running pass" of passes/analyses it depends on. (for example, FunctionToLoopPassAdaptor). So the order of printing is not the actual order.

Solution:
Doing things like PassManager::Debuglogging is very intrusive because we need to specify Debuglogging whenever adaptor is created. (Actually, right now we're not specifying Debuglogging for some sub-PassManagers. Check PassBuilder)

This patch move debug logging for pass as a PassInstrument callback. We could be sure that all running passes are logged and in the correct order.

This could also be used to implement hierarchy pass logging in legacy PM. We could also move logging of pass manager to this if we want.

The test fixes looks messy. It includes changes:
- Remove PassInstrumentationAnalysis
- Remove PassAdaptor
- If a PassAdaptor is for a real pass, the pass is added
- Pass reorder (to the correct order), related to PassAdaptor
- Add missing passes (due to Debuglogging not passed down)

Reviewed By: asbirlea, aeubanks

Differential Revision: https://reviews.llvm.org/D84774
2020-07-30 10:07:57 -07:00

138 lines
6.4 KiB
LLVM

; Basic test for the new LTO pipeline.
; For now the only difference is between -O1 and everything else, so
; -O2, -O3, -Os, -Oz are the same.
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='lto<O1>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O1
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='lto<O2>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='lto<O3>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2 \
; RUN: --check-prefix=CHECK-O3
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='lto<Os>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='lto<Oz>' -S %s 2>&1 \
; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='lto<O3>' -S %s -passes-ep-peephole='no-op-function' 2>&1 \
; RUN: | FileCheck %s --check-prefix=CHECK-O --check-prefix=CHECK-O2 \
; RUN: --check-prefix=CHECK-O3 --check-prefix=CHECK-EP-Peephole
; CHECK-O: Starting llvm::Module pass manager run.
; CHECK-O-NEXT: Starting llvm::Module pass manager run.
; CHECK-O-NEXT: Running pass: GlobalDCEPass
; CHECK-O-NEXT: Running pass: ForceFunctionAttrsPass
; CHECK-O-NEXT: Running pass: InferFunctionAttrsPass
; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Module
; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-O2-NEXT: Starting llvm::Function pass manager run.
; CHECK-O2-NEXT: Running pass: CallSiteSplittingPass on foo
; CHECK-O2-NEXT: Running analysis: TargetLibraryAnalysis on foo
; CHECK-O2-NEXT: Running analysis: TargetIRAnalysis on foo
; CHECK-O2-NEXT: Running analysis: DominatorTreeAnalysis on foo
; CHECK-O2-NEXT: Finished llvm::Function pass manager run.
; CHECK-O2-NEXT: PGOIndirectCallPromotion
; CHECK-O2-NEXT: Running analysis: ProfileSummaryAnalysis
; CHECK-O2-NEXT: Running analysis: OptimizationRemarkEmitterAnalysis
; CHECK-O2-NEXT: Running pass: IPSCCPPass
; CHECK-O2-NEXT: Running analysis: AssumptionAnalysis on foo
; CHECK-O2-NEXT: Running pass: CalledValuePropagationPass
; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}SCC
; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
; CHECK-O1-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-O-NEXT: Running analysis: FunctionAnalysisManagerCGSCCProxy
; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy<{{.*}}LazyCallGraph{{.*}}>
; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
; CHECK-O-NEXT: Running analysis: AAManager
; CHECK-O-NEXT: Running pass: ReversePostOrderFunctionAttrsPass
; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
; CHECK-O-NEXT: Running pass: GlobalSplitPass
; CHECK-O-NEXT: Running pass: WholeProgramDevirtPass
; CHECK-O1-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O2-NEXT: Running pass: GlobalOptPass
; CHECK-O2-NEXT: Running pass: PromotePass
; CHECK-O2-NEXT: Running pass: ConstantMergePass
; CHECK-O2-NEXT: Running pass: DeadArgumentEliminationPass
; CHECK-O2-NEXT: Starting llvm::Function pass manager run.
; CHECK-O3-NEXT: Running pass: AggressiveInstCombinePass
; CHECK-O2-NEXT: Running pass: InstCombinePass
; CHECK-O2-NEXT: Running analysis: OuterAnalysisManagerProxy
; CHECK-EP-Peephole-NEXT: Running pass: NoOpFunctionPass
; CHECK-O2-NEXT: Finished llvm::Function pass manager run.
; CHECK-O2-NEXT: Running pass: ModuleInlinerWrapperPass
; CHECK-O2-NEXT: Running analysis: InlineAdvisorAnalysis
; CHECK-O2-NEXT: Starting llvm::Module pass manager run.
; CHECK-O2-NEXT: Starting CGSCC pass manager run.
; CHECK-O2-NEXT: Running pass: InlinerPass
; CHECK-O2-NEXT: Finished CGSCC pass manager run.
; CHECK-O2-NEXT: Finished llvm::Module pass manager run.
; CHECK-O2-NEXT: Running pass: GlobalOptPass
; CHECK-O2-NEXT: Running pass: GlobalDCEPass
; CHECK-O2-NEXT: Starting llvm::Function pass manager run.
; CHECK-O2-NEXT: Running pass: InstCombinePass
; CHECK-EP-Peephole-NEXT: Running pass: NoOpFunctionPass
; CHECK-O2-NEXT: Running pass: JumpThreadingPass
; CHECK-O2-NEXT: Running analysis: LazyValueAnalysis
; CHECK-O2-NEXT: Running pass: SROA on foo
; CHECK-O2-NEXT: Running pass: TailCallElimPass on foo
; CHECK-O2-NEXT: Finished llvm::Function pass manager run.
; CHECK-O2-NEXT: Running pass: PostOrderFunctionAttrsPass
; CHECK-O2-NEXT: Running pass: GVN on foo
; CHECK-O2-NEXT: Running analysis: MemoryDependenceAnalysis
; CHECK-O2-NEXT: Running analysis: PhiValuesAnalysis
; CHECK-O2-NEXT: Running pass: MemCpyOptPass on foo
; CHECK-O2-NEXT: Running pass: DSEPass on foo
; CHECK-O2-NEXT: Running pass: InstCombinePass on foo
; CHECK-O2-NEXT: Running pass: SimplifyCFGPass on foo
; CHECK-O2-NEXT: Running pass: SCCPPass on foo
; CHECK-O2-NEXT: Running pass: InstCombinePass on foo
; CHECK-O2-NEXT: Running pass: BDCEPass on foo
; CHECK-O2-NEXT: Running analysis: DemandedBitsAnalysis
; CHECK-O2-NEXT: Running pass: InstCombinePass
; CHECK-EP-Peephole-NEXT: Running pass: NoOpFunctionPass
; CHECK-O2-NEXT: Running pass: JumpThreadingPass
; CHECK-O2-NEXT: Running pass: CrossDSOCFIPass
; CHECK-O2-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O-NEXT: Running pass: LowerTypeTestsPass
; CHECK-O2-NEXT: Running pass: SimplifyCFGPass
; CHECK-O2-NEXT: Running pass: EliminateAvailableExternallyPass
; CHECK-O2-NEXT: Running pass: GlobalDCEPass
; CHECK-O-NEXT: Finished llvm::Module pass manager run.
; 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: }
;
; CHECK-O-NEXT: Finished llvm::Module pass manager run.
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
}