| John McCall | d935e9c | 2011-06-15 23:37:01 +0000 | [diff] [blame^] | 1 | ; RUN: opt -S -objc-arc < %s | FileCheck %s |
| 2 | |
| 3 | declare void @use_pointer(i8*) |
| 4 | declare i8* @returner() |
| 5 | declare i8* @objc_retain(i8*) |
| 6 | declare i8* @objc_autoreleaseReturnValue(i8*) |
| 7 | declare i8* @objc_retainAutoreleasedReturnValue(i8*) |
| 8 | |
| 9 | ; Clean up residue left behind after inlining. |
| 10 | |
| 11 | ; CHECK: define void @test0( |
| 12 | ; CHECK: entry: |
| 13 | ; CHECK-NEXT: ret void |
| 14 | ; CHECK-NEXT: } |
| 15 | define void @test0(i8* %call.i) { |
| 16 | entry: |
| 17 | %0 = tail call i8* @objc_retain(i8* %call.i) nounwind |
| 18 | %1 = tail call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind |
| 19 | ret void |
| 20 | } |
| 21 | |
| 22 | ; Same as test0, but with slightly different use arrangements. |
| 23 | |
| 24 | ; CHECK: define void @test1( |
| 25 | ; CHECK: entry: |
| 26 | ; CHECK-NEXT: ret void |
| 27 | ; CHECK-NEXT: } |
| 28 | define void @test1(i8* %call.i) { |
| 29 | entry: |
| 30 | %0 = tail call i8* @objc_retain(i8* %call.i) nounwind |
| 31 | %1 = tail call i8* @objc_autoreleaseReturnValue(i8* %call.i) nounwind |
| 32 | ret void |
| 33 | } |
| 34 | |
| 35 | ; Delete a retainRV+autoreleaseRV even if the pointer is used. |
| 36 | |
| 37 | ; CHECK: define void @test24( |
| 38 | ; CHECK-NEXT: entry: |
| 39 | ; CHECK-NEXT: call void @use_pointer(i8* %p) |
| 40 | ; CHECK-NEXT: ret void |
| 41 | ; CHECK-NEXT: } |
| 42 | define void @test24(i8* %p) { |
| 43 | entry: |
| 44 | call i8* @objc_autoreleaseReturnValue(i8* %p) nounwind |
| 45 | call i8* @objc_retainAutoreleasedReturnValue(i8* %p) nounwind |
| 46 | call void @use_pointer(i8* %p) |
| 47 | ret void |
| 48 | } |