1 ; RUN: opt -basicaa -print-memoryssa -verify-memoryssa -analyze < %s 2>&1 | FileCheck %s
2 ; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s
4 ; Testing many dominators, specifically from a switch statement in C.
6 declare i1 @getBool() readnone
8 define i32 @foo(i32* %p) {
13 ; CHECK: 8 = MemoryPhi({entry,liveOnEntry},{sw.epilog,6})
15 %n = phi i32 [ 0, %entry ], [ %1, %sw.epilog ]
16 %m = alloca i32, align 4
17 switch i32 %n, label %sw.default [
25 ; CHECK: 1 = MemoryDef(8)
26 ; CHECK-NEXT: store i32 1
27 store i32 1, i32* %m, align 4
31 ; CHECK: 2 = MemoryDef(8)
32 ; CHECK-NEXT: store i32 2
33 store i32 2, i32* %m, align 4
37 ; CHECK: 3 = MemoryDef(8)
38 ; CHECK-NEXT: store i32 3
39 store i32 3, i32* %m, align 4
43 ; CHECK: 4 = MemoryDef(8)
44 ; CHECK-NEXT: store i32 4
45 store i32 4, i32* %m, align 4
49 ; CHECK: 5 = MemoryDef(8)
50 ; CHECK-NEXT: store i32 5
51 store i32 5, i32* %m, align 4
55 ; CHECK: 7 = MemoryPhi({sw.default,5},{sw.bb,1},{sw.bb1,2},{sw.bb2,3},{sw.bb3,4})
56 ; CHECK-NEXT: MemoryUse(7)
58 %0 = load i32, i32* %m, align 4
59 ; CHECK: 6 = MemoryDef(7)
61 %1 = load volatile i32, i32* %p, align 4
62 %2 = icmp eq i32 %0, %1
63 br i1 %2, label %exit, label %loopbegin