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 46
