| ; RUN: opt -passes='print<memoryssa-walker>' -disable-output < %s 2>&1 | FileCheck %s |
| |
| ; CHECK: define void @test |
| ; CHECK: 1 = MemoryDef(liveOnEntry)->liveOnEntry - clobbered by liveOnEntry |
| ; CHECK: store i8 42, i8* %a1 |
| ; CHECK: 2 = MemoryDef(1)->liveOnEntry - clobbered by liveOnEntry |
| ; CHECK: store i8 42, i8* %a2 |
| ; CHECK: MemoryUse(1) MustAlias - clobbered by 1 = MemoryDef(liveOnEntry)->liveOnEntry |
| ; CHECK: %l1 = load i8, i8* %a1 |
| ; CHECK: MemoryUse(2) MustAlias - clobbered by 2 = MemoryDef(1)->liveOnEntry |
| ; CHECK: %l2 = load i8, i8* %a2 |
| ; CHECK: 3 = MemoryDef(2)->liveOnEntry - clobbered by liveOnEntry |
| ; CHECK: store i8 42, i8* %p |
| ; CHECK: 4 = MemoryDef(3)->3 MustAlias - clobbered by 3 = MemoryDef(2)->liveOnEntry |
| ; CHECK: store i8 42, i8* %p |
| ; CHECK: MemoryUse(4) MustAlias - clobbered by 4 = MemoryDef(3)->3 MustAlias |
| ; CHECK: %p1 = load i8, i8* %p |
| ; CHECK: MemoryUse(4) MustAlias - clobbered by 4 = MemoryDef(3)->3 MustAlias |
| ; CHECK: %p2 = load i8, i8* %p |
| |
| define void @test(i8* %p) { |
| %a1 = alloca i8 |
| %a2 = alloca i8 |
| store i8 42, i8* %a1 |
| store i8 42, i8* %a2 |
| %l1 = load i8, i8* %a1 |
| %l2 = load i8, i8* %a2 |
| |
| store i8 42, i8* %p |
| store i8 42, i8* %p |
| %p1 = load i8, i8* %p |
| %p2 = load i8, i8* %p |
| |
| ret void |
| } |