1; RUN: opt %s -S -aa-pipeline=cfl-steens-aa -passes=aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s
2;
3; Regression: we weren't properly checking constexpr selects.
4
5@g = extern_weak dso_local global i32, align 4
6@g2 = extern_weak dso_local global i32, align 4
7@g3 = extern_weak dso_local global i32, align 4
8
9; CHECK-LABEL: Function: foo
10; CHECK-DAG: NoAlias: i32** %a, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3)
11; CHECK-DAG: NoAlias: i32** %a, i32* %b
12; CHECK-DAG: MayAlias: i32* %b, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3)
13; CHECK-DAG: NoAlias: i32** %a, i32* @g2
14; CHECK-DAG: MayAlias: i32* @g2, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3)
15; CHECK-DAG: MayAlias: i32* %b, i32* @g2
16; CHECK-DAG: NoAlias: i32** %a, i32* @g3
17; CHECK-DAG: MayAlias: i32* @g3, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3)
18; CHECK-DAG: MayAlias: i32* %b, i32* @g3
19; CHECK-DAG: MayAlias: i32* @g2, i32* @g3
20
21define void @foo() {
22entry:
23  %a = alloca i32*, align 8
24  load i32, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3)
25  store i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3), i32** %a
26  %b = load i32*, i32** %a
27  %c = load i32, i32* %b
28  %d = load i32, i32* @g2
29  %e = load i32, i32* @g3
30  ret void
31}
32