1; Test that the BasicAA analysis gets invalidated when its dependencies go
2; away.
3;
4; Check DomTree specifically.
5; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
6; RUN:     -passes='require<aa>,invalidate<domtree>,aa-eval' -aa-pipeline='basic-aa' \
7; RUN:     | FileCheck %s --check-prefix=CHECK-DT-INVALIDATE
8; CHECK-DT-INVALIDATE: Running pass: RequireAnalysisPass
9; CHECK-DT-INVALIDATE: Running analysis: BasicAA
10; CHECK-DT-INVALIDATE: Running pass: InvalidateAnalysisPass
11; CHECK-DT-INVALIDATE: Invalidating analysis: DominatorTreeAnalysis
12; CHECK-DT-INVALIDATE: Invalidating analysis: BasicAA
13; CHECK-DT-INVALIDATE: Running pass: AAEvaluator
14; CHECK-DT-INVALIDATE: Running analysis: BasicAA
15;
16; Check LoopInfo specifically.
17; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
18; RUN:     -passes='require<loops>,require<aa>,invalidate<loops>,aa-eval' -aa-pipeline='basic-aa' \
19; RUN:     | FileCheck %s --check-prefix=CHECK-LI-INVALIDATE
20; CHECK-LI-INVALIDATE: Running pass: RequireAnalysisPass
21; CHECK-LI-INVALIDATE: Running analysis: BasicAA
22; CHECK-LI-INVALIDATE: Running pass: InvalidateAnalysisPass
23; CHECK-LI-INVALIDATE: Invalidating analysis: LoopAnalysis
24; CHECK-LI-INVALIDATE: Invalidating analysis: BasicAA
25; CHECK-LI-INVALIDATE: Running pass: AAEvaluator
26; CHECK-LI-INVALIDATE: Running analysis: BasicAA
27;
28; Check PhiValues specifically.
29; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
30; RUN:     -passes='require<phi-values>,require<aa>,invalidate<phi-values>,aa-eval' -aa-pipeline='basic-aa' \
31; RUN:     | FileCheck %s --check-prefix=CHECK-PV-INVALIDATE
32; CHECK-PV-INVALIDATE: Running pass: RequireAnalysisPass
33; CHECK-PV-INVALIDATE: Running analysis: BasicAA
34; CHECK-PV-INVALIDATE: Running pass: InvalidateAnalysisPass
35; CHECK-PV-INVALIDATE: Invalidating analysis: PhiValuesAnalysis
36; CHECK-PV-INVALIDATE: Invalidating analysis: BasicAA
37; CHECK-PV-INVALIDATE: Running pass: AAEvaluator
38; CHECK-PV-INVALIDATE: Running analysis: BasicAA
39
40; Some code that will result in actual AA queries, including inside of a loop.
41; FIXME: Sadly, none of these queries managed to use either the domtree or
42; loopinfo that basic-aa cache. But nor does any other test in LLVM. It would
43; be good to enhance this to actually use these other analyses to make this
44; a more thorough test.
45define void @foo(i1 %x, i8* %p1, i8* %p2) {
46entry:
47  %p3 = alloca i8
48  store i8 42, i8* %p1
49  %gep2 = getelementptr i8, i8* %p2, i32 0
50  br i1 %x, label %loop, label %exit
51
52loop:
53  store i8 13, i8* %p3
54  %tmp1 = load i8, i8* %gep2
55  br label %loop
56
57exit:
58  ret void
59}
60