xref: /llvm-project/llvm/test/Analysis/LoopAccessAnalysis/invalidation.ll (revision 81d6310da1fc54f0ca0de6fa13246d6071edb0cf)
1; Test that access-info gets invalidated when the analyses it depends on are
2; invalidated.
3
4; This is a reproducer for https://github.com/llvm/llvm-project/issues/61324.
5; We want to see that LoopAccessAnalysis+AAManger is being updated at the end,
6; instead of crashing when using a stale AAManager.
7;
8; RUN: opt < %s -disable-output -debug-pass-manager -passes='function(require<access-info>,invalidate<aa>),print<access-info>' 2>&1 | FileCheck %s --check-prefix=CHECK-AA
9;
10; CHECK-AA: Running pass: RequireAnalysisPass
11; CHECK-AA-NEXT: Running analysis: LoopAccessAnalysis on foo
12; CHECK-AA: Running pass: InvalidateAnalysisPass
13; CHECK-AA-NEXT: Invalidating analysis: AAManager on foo
14; CHECK-AA-NEXT: Invalidating analysis: LoopAccessAnalysis on foo
15; CHECK-AA-NEXT: Running pass: LoopAccessInfoPrinterPass on foo
16; CHECK-AA-NEXT: Running analysis: LoopAccessAnalysis on foo
17; CHECK-AA-NEXT: Running analysis: AAManager on foo
18
19
20; Verify that an explicit invalidate request for access-info result in an
21; invalidation.
22;
23; RUN: opt < %s -disable-output -debug-pass-manager -passes='function(require<access-info>,invalidate<access-info>)' 2>&1 | FileCheck %s --check-prefix=CHECK-INV-AA
24;
25; CHECK-INV-AA: Running pass: RequireAnalysisPass
26; CHECK-INV-AA-NEXT: Running analysis: LoopAccessAnalysis on foo
27; CHECK-INV-AA: Running pass: InvalidateAnalysisPass
28; CHECK-INV-AA-NEXT: Invalidating analysis: LoopAccessAnalysis on foo
29
30
31; Invalidation of scalar-evolution should transitively invalidate access-info.
32;
33; RUN: opt < %s -disable-output -debug-pass-manager -passes='function(require<access-info>,invalidate<scalar-evolution>)' 2>&1 | FileCheck %s --check-prefix=CHECK-SCEV
34;
35; CHECK-SCEV: Running pass: RequireAnalysisPass
36; CHECK-SCEV-NEXT: Running analysis: LoopAccessAnalysis on foo
37; CHECK-SCEV: Running pass: InvalidateAnalysisPass
38; CHECK-SCEV-NEXT: Invalidating analysis: ScalarEvolutionAnalysis on foo
39; CHECK-SCEV-NEXT: Invalidating analysis: LoopAccessAnalysis on foo
40
41
42; Invalidation of domtree should transitively invalidate access-info.
43;
44; RUN: opt < %s -disable-output -debug-pass-manager -passes='function(require<access-info>,invalidate<domtree>)' 2>&1 | FileCheck %s --check-prefix=CHECK-DT
45;
46; CHECK-DT: Running pass: RequireAnalysisPass
47; CHECK-DT-NEXT: Running analysis: LoopAccessAnalysis on foo
48; CHECK-DT: Running pass: InvalidateAnalysisPass
49; CHECK-DT-NEXT: Invalidating analysis: DominatorTreeAnalysis on foo
50; CHECK-DT: Invalidating analysis: LoopAccessAnalysis on foo
51
52
53define void @foo(ptr nocapture writeonly %a, ptr nocapture writeonly %b) memory(argmem: write) {
54entry:
55  br label %for.cond1
56
57for.cond1:
58  store i16 0, ptr %b, align 1
59  store i16 0, ptr %a, align 1
60  br i1 true, label %for.end6, label %for.cond1
61
62for.end6:
63  ret void
64}
65