Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/arguments.ll

@@ -0,0 +1,15 @@
+; This testcase ensures that CFL AA gives conservative answers on variables
+; that involve arguments.
+
+; RUN: opt < %s -cfl-steens-aa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s
+
+; CHECK:     Function: test
+
+define void @test(i1 %c, i32* %arg1, i32* %arg2) {
+  ; CHECK: 6 Total Alias Queries Performed
+  ; CHECK: 3 no alias responses
+  %a = alloca i32, align 4
+  %b = select i1 %c, i32* %arg1, i32* %arg2
+
+  ret void
+}