; RUN: opt -S -passes=objc-arc < %s | FileCheck %s ; rdar://10210274 %0 = type opaque declare ptr @llvm.objc.retain(ptr) declare void @llvm.objc.release(ptr) declare ptr @llvm.objc.autoreleaseReturnValue(ptr) ; Don't delete the autorelease. ; CHECK-LABEL: define ptr @test0( ; CHECK: @llvm.objc.retain ; CHECK: .lr.ph: ; CHECK-NOT: @llvm.objc.r ; CHECK: @llvm.objc.autoreleaseReturnValue ; CHECK-NOT: @llvm.objc. ; CHECK: } define ptr @test0(ptr %buffer) nounwind { %1 = tail call ptr @llvm.objc.retain(ptr %buffer) nounwind br i1 undef, label %.lr.ph, label %._crit_edge .lr.ph: ; preds = %.lr.ph, %0 br i1 false, label %.lr.ph, label %._crit_edge ._crit_edge: ; preds = %.lr.ph, %0 %2 = tail call ptr @llvm.objc.retain(ptr %buffer) nounwind tail call void @llvm.objc.release(ptr %buffer) nounwind, !clang.imprecise_release !0 %3 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %buffer) nounwind ret ptr %buffer } ; Do delete the autorelease, even with the retain in a different block. ; CHECK-LABEL: define ptr @test1( ; CHECK-NOT: @objc ; CHECK: } define ptr @test1() nounwind { %buffer = call ptr @foo() %1 = tail call ptr @llvm.objc.retain(ptr %buffer) nounwind br i1 undef, label %.lr.ph, label %._crit_edge .lr.ph: ; preds = %.lr.ph, %0 br i1 false, label %.lr.ph, label %._crit_edge ._crit_edge: ; preds = %.lr.ph, %0 %2 = tail call ptr @llvm.objc.retain(ptr %buffer) nounwind tail call void @llvm.objc.release(ptr %buffer) nounwind, !clang.imprecise_release !0 %3 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %buffer) nounwind ret ptr %buffer } declare ptr @foo() !0 = !{}