| ; RUN: opt < %s -print-callgraph -disable-output 2>&1 | FileCheck %s |
| ; CHECK: Call graph node <<null function>><<{{.*}}>> #uses=0 |
| ; CHECK-NEXT: CS<None> calls function 'cast_only' |
| ; CHECK-NEXT: CS<None> calls function 'llvm.lifetime.start.p0i8' |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Call graph node for function: 'cast_only'<<{{.*}}>> #uses=1 |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Call graph node for function: 'llvm.lifetime.start.p0i8'<<{{.*}}>> #uses=1 |
| ; CHECK-EMPTY: |
| ; CHECK-NEXT: Call graph node for function: 'used_by_lifetime'<<{{.*}}>> #uses=0 |
| ; CHECK-EMPTY: |
| |
| define internal void @used_by_lifetime() { |
| entry: |
| %c = bitcast void()* @used_by_lifetime to i8* |
| call void @llvm.lifetime.start.p0i8(i64 4, i8* %c) |
| ret void |
| } |
| |
| define internal void @cast_only() { |
| entry: |
| %c = bitcast void()* @cast_only to i8* |
| ret void |
| } |
| |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) |