| ; This testcase ensures that CFL AA responds conservatively when we union | |
| ; groups of pointers together through ternary/conditional operations | |
| ; Derived from: | |
| ; void foo(bool c) { | |
| ; char a, b; | |
| ; char *m = c ? &a : &b; | |
| ; *m; | |
| ; } | |
| ; | |
| ; RUN: opt < %s -disable-basicaa -cfl-steens-aa -aa-eval -print-may-aliases -disable-output 2>&1 | FileCheck %s | |
| %T = type { i32, [10 x i8] } | |
| ; CHECK: Function: test | |
| define void @test(i1 %C) { | |
| ; CHECK: 10 Total Alias Queries Performed | |
| ; CHECK: 4 no alias responses | |
| %M = alloca %T*, align 8 ; NoAlias with %A, %B, %MS, %AP | |
| %A = alloca %T, align 8 | |
| %B = alloca %T, align 8 | |
| %MS = select i1 %C, %T* %B, %T* %A | |
| store %T* %MS, %T** %M | |
| %AP = load %T*, %T** %M ; PartialAlias with %A, %B | |
| ret void | |
| } |