; This testcase ensures that CFL AA answers queries soundly when callee tries ; to return an escaped pointer ; 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 noalias i8* @malloc(i64) declare void @opaque(i32*) define i32* @return_escaped_callee() { %ptr = call noalias i8* @malloc(i64 8) %ptr_cast = bitcast i8* %ptr to i32* call void @opaque(i32* %ptr_cast) ret i32* %ptr_cast } ; CHECK-LABEL: Function: test_return_escape ; CHECK: NoAlias: i32* %a, i32** %x ; CHECK: NoAlias: i32* %b, i32** %x ; CHECK: NoAlias: i32* %a, i32* %b ; CHECK: NoAlias: i32* %c, i32** %x ; CHECK: NoAlias: i32* %a, i32* %c ; CHECK: NoAlias: i32* %b, i32* %c ; CHECK: NoAlias: i32* %a, i32* %d ; CHECK: MayAlias: i32* %b, i32* %d ; CHECK: MayAlias: i32* %c, i32* %d define void @test_return_escape(i32** %x) { %a = alloca i32, align 4 %b = call i32* @return_escaped_callee() %c = call i32* @return_escaped_callee() %d = load i32*, i32** %x ret void }