1 ; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s
3 ; Makes sure we have a sane model if both successors of some block is the same
6 define i32 @foo(i1 %a) {
8 %0 = alloca i32, align 4
9 ; CHECK: 1 = MemoryDef(liveOnEntry)
10 ; CHECK-NEXT: store i32 4
12 br i1 %a, label %Loop.Body, label %Loop.End
15 ; CHECK: 4 = MemoryPhi({entry,1},{Loop.End,3})
16 ; CHECK-NEXT: 2 = MemoryDef(4)
17 ; CHECK-NEXT: store i32 5
18 store i32 5, ptr %0, align 4
19 br i1 %a, label %Loop.End, label %Loop.End ; WhyDoWeEvenHaveThatLever.gif
22 ; CHECK: 3 = MemoryPhi({entry,1},{Loop.Body,2},{Loop.Body,2})
23 ; CHECK-NEXT: MemoryUse(3)
24 ; CHECK-NEXT: %1 = load
25 %1 = load i32, ptr %0, align 4
26 %2 = icmp eq i32 5, %1
27 br i1 %2, label %Ret, label %Loop.Body