Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/interproc-arg-deref-escape.ll

@@ -1,33 +0,0 @@
-; This testcase ensures that CFL AA answers queries soundly when callee tries 
-; to escape the memory pointed to by its parameters
-
-; RUN: opt < %s -disable-basicaa -cfl-steens-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
-; RUN: opt < %s -aa-pipeline=cfl-steens-aa -passes=aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
-
-declare void @opaque(i32*)
-define void @escape_arg_deref(i32** %arg) {
-	%arg_deref = load i32*, i32** %arg
-	call void @opaque(i32* %arg_deref)
-	ret void
-}
-; CHECK-LABEL: Function: test_arg_deref_escape
-; CHECK: NoAlias: i32* %a, i32** %x
-; CHECK: NoAlias: i32* %b, i32** %x
-; CHECK: NoAlias: i32* %a, i32* %b
-; CHECK: NoAlias: i32** %p, i32** %x
-; CHECK: NoAlias: i32* %a, i32** %p
-; CHECK: NoAlias: i32* %b, i32** %p
-; CHECK: MayAlias: i32* %a, i32* %c
-; CHECK: NoAlias: i32* %b, i32* %c
-; CHECK: NoAlias: i32* %c, i32** %p
-define void @test_arg_deref_escape(i32** %x) {
-  %a = alloca i32, align 4
-  %b = alloca i32, align 4
-  %p = alloca i32*, align 4
-  
-  store i32* %a, i32** %p
-  call void @escape_arg_deref(i32** %p)
-  %c = load i32*, i32** %x
-
-  ret void
-}