1; Test that memdep gets invalidated when the analyses it depends on are
2; invalidated.
3;
4; Check AA. AA is stateless, there's nothing to invalidate.
5; RUN: opt -disable-output -debug-pass-manager -aa-pipeline='basic-aa' %s 2>&1 \
6; RUN:     -passes='require<memdep>,invalidate<aa>,gvn' \
7; RUN:     | FileCheck %s --check-prefix=CHECK-AA-INVALIDATE
8; CHECK-AA-INVALIDATE: Running pass: RequireAnalysisPass
9; CHECK-AA-INVALIDATE: Running analysis: MemoryDependenceAnalysis
10; CHECK-AA-INVALIDATE: Running pass: InvalidateAnalysisPass
11; CHECK-NOT-AA-INVALIDATE: Invalidating analysis: MemoryDependenceAnalysis
12; CHECK-AA-INVALIDATE: Running pass: GVN
13; CHECK-NOT-AA-INVALIDATE: Running analysis: MemoryDependenceAnalysis
14;
15; Check domtree specifically.
16; RUN: opt -disable-output -debug-pass-manager %s 2>&1 \
17; RUN:     -passes='require<memdep>,invalidate<domtree>,gvn' \
18; RUN:     | FileCheck %s --check-prefix=CHECK-DT-INVALIDATE
19; CHECK-DT-INVALIDATE: Running pass: RequireAnalysisPass
20; CHECK-DT-INVALIDATE: Running analysis: MemoryDependenceAnalysis
21; CHECK-DT-INVALIDATE: Running pass: InvalidateAnalysisPass
22; CHECK-DT-INVALIDATE: Invalidating analysis: DominatorTreeAnalysis
23; CHECK-DT-INVALIDATE: Invalidating analysis: MemoryDependenceAnalysis
24; CHECK-DT-INVALIDATE: Running pass: GVN
25; CHECK-DT-INVALIDATE: Running analysis: MemoryDependenceAnalysis
26;
27
28define void @test_use_domtree(i32* nocapture %bufUInt, i32* nocapture %pattern) nounwind {
29entry:
30  br label %for.body
31
32for.exit:                                         ; preds = %for.body
33  ret void
34
35for.body:                                         ; preds = %for.body, %entry
36  %i.01 = phi i32 [ 0, %entry ], [ %tmp8.7, %for.body ]
37  %arrayidx = getelementptr i32, i32* %bufUInt, i32 %i.01
38  %arrayidx5 = getelementptr i32, i32* %pattern, i32 %i.01
39  %tmp6 = load i32, i32* %arrayidx5, align 4
40  store i32 %tmp6, i32* %arrayidx, align 4
41  %tmp8.7 = add i32 %i.01, 8
42  %cmp.7 = icmp ult i32 %tmp8.7, 1024
43  br i1 %cmp.7, label %for.body, label %for.exit
44}
45
46%t = type { i32 }
47declare void @foo(i8*)
48
49define void @test_use_aa(%t* noalias %stuff ) {
50entry:
51  %p = getelementptr inbounds %t, %t* %stuff, i32 0, i32 0
52  %before = load i32, i32* %p
53
54  call void @foo(i8* null)
55
56  %after = load i32, i32* %p
57  %sum = add i32 %before, %after
58
59  store i32 %sum, i32* %p
60  ret void
61}
62