1; RUN: opt -aa-pipeline=basic-aa -passes='print<memoryssa>,verify<memoryssa>' -disable-output < %s 2>&1 | FileCheck %s 2; 3; Makes sure we have a sane model if both successors of some block is the same 4; block. 5 6define i32 @foo(i1 %a) { 7entry: 8 %0 = alloca i32, align 4 9; CHECK: 1 = MemoryDef(liveOnEntry) 10; CHECK-NEXT: store i32 4 11 store i32 4, ptr %0 12 br i1 %a, label %Loop.Body, label %Loop.End 13 14Loop.Body: 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 20 21Loop.End: 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 28 29Ret: 30 ret i32 %1 31} 32
