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cad5492fda
mark it as never invalidated in the new PM. The old PM already required this to work, and after a discussion with Hal this seems to really be the only sensible answer. The cache gracefully degrades as the IR is mutated, and most things which do this should already be incrementally updating the cache. This gets rid of a bunch of logic preserving and testing the invalidation of this analysis. llvm-svn: 292039
63 lines
2.3 KiB
LLVM
63 lines
2.3 KiB
LLVM
; Test that memdep gets invalidated when the analyses it depends on are
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; invalidated.
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;
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; Check AA specifically.
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; RUN: opt -disable-output -debug-pass-manager -aa-pipeline='basic-aa' %s 2>&1 \
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; RUN: -passes='require<memdep>,invalidate<aa>,gvn' \
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; RUN: | FileCheck %s --check-prefix=CHECK-AA-INVALIDATE
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; CHECK-AA-INVALIDATE: Running pass: RequireAnalysisPass
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; CHECK-AA-INVALIDATE: Running analysis: MemoryDependenceAnalysis
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; CHECK-AA-INVALIDATE: Running pass: InvalidateAnalysisPass
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; CHECK-AA-INVALIDATE: Invalidating analysis: AAManager
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; CHECK-AA-INVALIDATE: Invalidating analysis: MemoryDependenceAnalysis
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; CHECK-AA-INVALIDATE: Running pass: GVN
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; CHECK-AA-INVALIDATE: Running analysis: MemoryDependenceAnalysis
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;
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; Check domtree specifically.
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; RUN: opt -disable-output -debug-pass-manager %s 2>&1 \
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; RUN: -passes='require<memdep>,invalidate<domtree>,gvn' \
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; RUN: | FileCheck %s --check-prefix=CHECK-DT-INVALIDATE
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; CHECK-DT-INVALIDATE: Running pass: RequireAnalysisPass
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; CHECK-DT-INVALIDATE: Running analysis: MemoryDependenceAnalysis
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; CHECK-DT-INVALIDATE: Running pass: InvalidateAnalysisPass
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; CHECK-DT-INVALIDATE: Invalidating analysis: DominatorTreeAnalysis
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; CHECK-DT-INVALIDATE: Invalidating analysis: MemoryDependenceAnalysis
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; CHECK-DT-INVALIDATE: Running pass: GVN
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; CHECK-DT-INVALIDATE: Running analysis: MemoryDependenceAnalysis
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;
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define void @test_use_domtree(i32* nocapture %bufUInt, i32* nocapture %pattern) nounwind {
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entry:
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br label %for.body
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for.exit: ; preds = %for.body
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ret void
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for.body: ; preds = %for.body, %entry
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%i.01 = phi i32 [ 0, %entry ], [ %tmp8.7, %for.body ]
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%arrayidx = getelementptr i32, i32* %bufUInt, i32 %i.01
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%arrayidx5 = getelementptr i32, i32* %pattern, i32 %i.01
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%tmp6 = load i32, i32* %arrayidx5, align 4
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store i32 %tmp6, i32* %arrayidx, align 4
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%tmp8.7 = add i32 %i.01, 8
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%cmp.7 = icmp ult i32 %tmp8.7, 1024
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br i1 %cmp.7, label %for.body, label %for.exit
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}
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%t = type { i32 }
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declare void @foo(i8*)
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define void @test_use_aa(%t* noalias %stuff ) {
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entry:
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%p = getelementptr inbounds %t, %t* %stuff, i32 0, i32 0
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%before = load i32, i32* %p
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call void @foo(i8* null)
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%after = load i32, i32* %p
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%sum = add i32 %before, %after
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store i32 %sum, i32* %p
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ret void
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}
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