| ; RUN: opt %s -S -disable-basicaa -cfl-steens-aa -aa-eval -print-all-alias-modref-info 2>&1 | FileCheck %s |
| ; |
| ; Regression: we weren't properly checking constexpr selects. |
| |
| @g = extern_weak dso_local global i32, align 4 |
| @g2 = extern_weak dso_local global i32, align 4 |
| @g3 = extern_weak dso_local global i32, align 4 |
| |
| ; CHECK-LABEL: Function: foo |
| ; CHECK: NoAlias: i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3), i32** %a |
| ; CHECK: NoAlias: i32* %b, i32** %a |
| ; CHECK: MayAlias: i32* %b, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3) |
| ; CHECK: NoAlias: i32* @g2, i32** %a |
| ; CHECK: MayAlias: i32* @g2, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3) |
| ; CHECK: MayAlias: i32* %b, i32* @g2 |
| ; CHECK: NoAlias: i32* @g3, i32** %a |
| ; CHECK: MayAlias: i32* @g3, i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3) |
| ; CHECK: MayAlias: i32* %b, i32* @g3 |
| ; CHECK: MayAlias: i32* @g2, i32* @g3 |
| |
| define void @foo() { |
| entry: |
| %a = alloca i32*, align 8 |
| store i32* select (i1 icmp ne (i32* @g, i32* null), i32* @g2, i32* @g3), i32** %a |
| %b = load i32*, i32** %a |
| %c = load i32, i32* %b |
| %d = load i32, i32* @g2 |
| %e = load i32, i32* @g3 |
| ret void |
| } |