; RUN: opt -passes=objc-arc-contract -S < %s | FileCheck %s ; rdar://9511608 %0 = type opaque %1 = type opaque %2 = type { i64, i64 } %4 = type opaque declare ptr @"\01-[NSAttributedString(Terminal) pathAtIndex:effectiveRange:]"(ptr, ptr nocapture, i64, ptr) optsize declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr) declare ptr @objc_msgSend_fixup(ptr, ptr, ...) declare ptr @objc_msgSend(ptr, ptr, ...) declare void @llvm.objc.release(ptr) declare %2 @NSUnionRange(i64, i64, i64, i64) optsize declare ptr @llvm.objc.autoreleaseReturnValue(ptr) declare ptr @llvm.objc.autorelease(ptr) declare i32 @__gxx_personality_sj0(...) ; Don't get in trouble on bugpointed code. ; CHECK-LABEL: define void @test0( define void @test0() { bb: %tmp1 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr undef) nounwind br label %bb3 bb3: ; preds = %bb2 br i1 undef, label %bb6, label %bb4 bb4: ; preds = %bb3 switch i64 undef, label %bb5 [ i64 9223372036854775807, label %bb6 i64 0, label %bb6 ] bb5: ; preds = %bb4 br label %bb6 bb6: ; preds = %bb5, %bb4, %bb4, %bb3 %tmp7 = phi ptr [ undef, %bb5 ], [ undef, %bb4 ], [ undef, %bb3 ], [ undef, %bb4 ] unreachable } ; When rewriting operands for a phi which has multiple operands ; for the same block, use the exactly same value in each block. ; CHECK-LABEL: define void @test1( ; CHECK: br i1 undef, label %bb7, label %bb7 ; CHECK: bb7: ; CHECK: %tmp8 = phi ptr [ %tmp3, %bb ], [ %tmp3, %bb ] ; CHECK: } define void @test1() { bb: %tmp = tail call ptr @objc_msgSend() %tmp3 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %tmp) nounwind br i1 undef, label %bb7, label %bb7 bb7: ; preds = %bb6, %bb6, %bb5 %tmp8 = phi ptr [ %tmp, %bb ], [ %tmp, %bb ] unreachable } ; When looking for the defining instruction for an objc_retainAutoreleasedReturnValue ; call, handle the case where it's an invoke in a different basic block. ; rdar://11714057 ; CHECK: define void @_Z6doTestP8NSString() personality ptr @__gxx_personality_sj0 { ; CHECK: invoke.cont: ; preds = %entry ; CHECK-NEXT: call void asm sideeffect "mov\09r7, r7\09\09@ marker for objc_retainAutoreleaseReturnValue", ""() ; CHECK-NEXT: %tmp = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) [[NUW:#[0-9]+]] ; CHECK: } define void @_Z6doTestP8NSString() personality ptr @__gxx_personality_sj0 { entry: %call = invoke ptr @objc_msgSend() to label %invoke.cont unwind label %lpad invoke.cont: ; preds = %entry %tmp = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call) nounwind unreachable lpad: ; preds = %entry %tmp1 = landingpad { ptr, i32 } cleanup resume { ptr, i32 } undef } !llvm.module.flags = !{!0} !0 = !{i32 1, !"clang.arc.retainAutoreleasedReturnValueMarker", !"mov\09r7, r7\09\09@ marker for objc_retainAutoreleaseReturnValue"} ; CHECK: attributes #0 = { optsize } ; CHECK: attributes [[NUW]] = { nounwind }