Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/Transforms/ObjCARC/split-backedge.ll

@@ -1,50 +0,0 @@
-; RUN: opt -S -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 i8* @objc_retain(i8* %call) [[NUW:#[0-9]+]]
-; CHECK: call i8* @objc_retain(i8* %call) [[NUW]]
-; CHECK: call i8* @objc_retain(i8* %cond) [[NUW]]
-; CHECK: call void @objc_release(i8* %call) [[NUW]]
-; CHECK: call void @objc_release(i8* %call) [[NUW]]
-; CHECK: call void @objc_release(i8* %cond) [[NUW]]
-define void @test0() personality i8* bitcast (i32 (...)* @__objc_personality_v0 to i8*) {
-entry:
-  br label %while.body
-
-while.body:                                       ; preds = %while.cond
-  %call = invoke i8* @returner()
-          to label %invoke.cont unwind label %lpad, !clang.arc.no_objc_arc_exceptions !0
-
-invoke.cont:                                      ; preds = %while.body
-  %t0 = call i8* @objc_retain(i8* %call) nounwind
-  %t1 = call i8* @objc_retain(i8* %call) nounwind
-  %call.i1 = invoke i8* @returner()
-          to label %invoke.cont1 unwind label %lpad
-
-invoke.cont1:                                     ; preds = %invoke.cont
-  %cond = select i1 undef, i8* null, i8* %call
-  %t2 = call i8* @objc_retain(i8* %cond) nounwind
-  call void @objc_release(i8* %call) nounwind
-  call void @objc_release(i8* %call) nounwind
-  call void @use_pointer(i8* %cond)
-  call void @objc_release(i8* %cond) nounwind
-  br label %while.body
-
-lpad:                                             ; preds = %invoke.cont, %while.body
-  %t4 = landingpad { i8*, i32 }
-          catch i8* null
-  ret void
-}
-
-declare i8* @returner()
-declare i32 @__objc_personality_v0(...)
-declare void @objc_release(i8*)
-declare i8* @objc_retain(i8*)
-declare void @use_pointer(i8*)
-
-!0 = !{}
-
-; CHECK: attributes [[NUW]] = { nounwind }