; RUN: opt -S -passes=objc-arc < %s | FileCheck %s ; Handle a retain+release pair entirely contained within a split loop backedge. ; rdar://11256239 ; CHECK-LABEL: define void @test0( ; CHECK: call ptr @llvm.objc.retain(ptr %call) [[NUW:#[0-9]+]] ; CHECK: call ptr @llvm.objc.retain(ptr %call) [[NUW]] ; CHECK: call ptr @llvm.objc.retain(ptr %cond) [[NUW]] ; CHECK: call void @llvm.objc.release(ptr %call) [[NUW]] ; CHECK: call void @llvm.objc.release(ptr %call) [[NUW]] ; CHECK: call void @llvm.objc.release(ptr %cond) [[NUW]] define void @test0() personality ptr @__objc_personality_v0 { entry: br label %while.body while.body: ; preds = %while.cond %call = invoke ptr @returner() to label %invoke.cont unwind label %lpad, !clang.arc.no_objc_arc_exceptions !0 invoke.cont: ; preds = %while.body %t0 = call ptr @llvm.objc.retain(ptr %call) nounwind %t1 = call ptr @llvm.objc.retain(ptr %call) nounwind %call.i1 = invoke ptr @returner() to label %invoke.cont1 unwind label %lpad invoke.cont1: ; preds = %invoke.cont %cond = select i1 undef, ptr null, ptr %call %t2 = call ptr @llvm.objc.retain(ptr %cond) nounwind call void @llvm.objc.release(ptr %call) nounwind call void @llvm.objc.release(ptr %call) nounwind call void @use_pointer(ptr %cond) call void @llvm.objc.release(ptr %cond) nounwind br label %while.body lpad: ; preds = %invoke.cont, %while.body %t4 = landingpad { ptr, i32 } catch ptr null ret void } declare ptr @returner() declare i32 @__objc_personality_v0(...) declare void @llvm.objc.release(ptr) declare ptr @llvm.objc.retain(ptr) declare void @use_pointer(ptr) !0 = !{} ; CHECK: attributes [[NUW]] = { nounwind }