| Akira Hatanaka | 490397f | 2017-04-25 04:06:35 +0000 | [diff] [blame^] | 1 | ; RUN: opt -objc-arc -S %s | FileCheck %s |
| 2 | |
| 3 | %0 = type opaque |
| 4 | |
| 5 | ; Make sure ARC optimizer doesn't sink @obj_retain past @clang.arc.use. |
| 6 | |
| 7 | ; CHECK: call i8* @objc_retain( |
| 8 | ; CHECK: call void (...) @clang.arc.use( |
| 9 | ; CHECK: call i8* @objc_retain( |
| 10 | ; CHECK: call void (...) @clang.arc.use( |
| 11 | |
| 12 | define void @runTest() local_unnamed_addr { |
| 13 | %1 = alloca %0*, align 8 |
| 14 | %2 = alloca %0*, align 8 |
| 15 | %3 = tail call %0* @foo0() |
| 16 | %4 = bitcast %0* %3 to i8* |
| 17 | %5 = tail call i8* @objc_retainAutoreleasedReturnValue(i8* %4) |
| 18 | store %0* %3, %0** %1, align 8 |
| 19 | call void @foo1(%0** nonnull %1) |
| 20 | %6 = load %0*, %0** %1, align 8 |
| 21 | %7 = bitcast %0* %6 to i8* |
| 22 | %8 = call i8* @objc_retain(i8* %7) |
| 23 | call void (...) @clang.arc.use(%0* %3) |
| 24 | call void @objc_release(i8* %4) |
| 25 | store %0* %6, %0** %2, align 8 |
| 26 | call void @foo1(%0** nonnull %2) |
| 27 | %9 = load %0*, %0** %2, align 8 |
| 28 | %10 = bitcast %0* %9 to i8* |
| 29 | %11 = call i8* @objc_retain(i8* %10) |
| 30 | call void (...) @clang.arc.use(%0* %6) |
| 31 | %tmp1 = load %0*, %0** %2, align 8 |
| 32 | call void @objc_release(i8* %7) |
| 33 | call void @foo2(%0* %9) |
| 34 | call void @objc_release(i8* %10) |
| 35 | ret void |
| 36 | } |
| 37 | |
| 38 | declare %0* @foo0() local_unnamed_addr |
| 39 | declare void @foo1(%0**) local_unnamed_addr |
| 40 | declare void @foo2(%0*) local_unnamed_addr |
| 41 | |
| 42 | declare i8* @objc_retainAutoreleasedReturnValue(i8*) local_unnamed_addr |
| 43 | declare i8* @objc_retain(i8*) local_unnamed_addr |
| 44 | declare void @clang.arc.use(...) local_unnamed_addr |
| 45 | declare void @objc_release(i8*) local_unnamed_addr |