Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/pr27213.ll

@@ -0,0 +1,39 @@
+; RUN: opt < %s -disable-basicaa -cfl-steens-aa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s
+; RUN: opt < %s -aa-pipeline=cfl-steens-aa -passes=aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s
+
+; CHECK-LABEL:     Function: foo
+; CHECK: MayAlias: i32* %A, i32* %B
+define void @foo(i32* %A, i32* %B) {
+entry:
+  store i32 0, i32* %A, align 4
+  store i32 0, i32* %B, align 4
+  ret void
+}
+
+; CHECK-LABEL:     Function: bar
+; CHECK: MayAlias: i32* %A, i32* %B
+; CHECK: MayAlias: i32* %A, i32* %arrayidx
+; CHECK: MayAlias: i32* %B, i32* %arrayidx
+define void @bar(i32* %A, i32* %B) {
+entry:
+  store i32 0, i32* %A, align 4
+  %arrayidx = getelementptr inbounds i32, i32* %B, i64 1
+  store i32 0, i32* %arrayidx, align 4
+  ret void
+}
+
+@G = global i32 0
+
+; CHECK-LABEL:     Function: baz
+; CHECK: MayAlias: i32* %A, i32* @G
+define void @baz(i32* %A) {
+entry:
+  store i32 0, i32* %A, align 4
+  store i32 0, i32* @G, align 4
+  ret void
+}
+
+; CHECK-LABEL: Alias Analysis Evaluator Report
+; CHECK: 5 Total Alias Queries Performed
+; CHECK: 0 no alias responses
+; CHECK: 5 may alias responses