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 PhiValues specifically. 17; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \ 18; RUN: -passes='require<phi-values>,require<aa>,invalidate<phi-values>,aa-eval' -aa-pipeline='basic-aa' \ 19; RUN: | FileCheck %s --check-prefix=CHECK-PV-INVALIDATE 20; CHECK-PV-INVALIDATE: Running pass: RequireAnalysisPass 21; CHECK-PV-INVALIDATE: Running analysis: BasicAA 22; CHECK-PV-INVALIDATE: Running pass: InvalidateAnalysisPass 23; CHECK-PV-INVALIDATE: Invalidating analysis: PhiValuesAnalysis 24; CHECK-PV-INVALIDATE: Invalidating analysis: BasicAA 25; CHECK-PV-INVALIDATE: Running pass: AAEvaluator 26; CHECK-PV-INVALIDATE: Running analysis: BasicAA 27 28; Some code that will result in actual AA queries, including inside of a loop. 29; FIXME: Sadly, none of these queries managed to use either the domtree or 30; loopinfo that basic-aa cache. But nor does any other test in LLVM. It would 31; be good to enhance this to actually use these other analyses to make this 32; a more thorough test. 33define void @foo(i1 %x, i8* %p1, i8* %p2) { 34entry: 35 %p3 = alloca i8 36 store i8 42, i8* %p1 37 %gep2 = getelementptr i8, i8* %p2, i32 0 38 br i1 %x, label %loop, label %exit 39 40loop: 41 store i8 13, i8* %p3 42 %tmp1 = load i8, i8* %gep2 43 br label %loop 44 45exit: 46 ret void 47} 48