; RUN: opt -passes=objc-arc-contract -S < %s | FileCheck %s declare ptr @llvm.objc.autoreleaseReturnValue(ptr) declare ptr @foo1() ; Check that ARC contraction replaces the function return with the value ; returned by @llvm.objc.autoreleaseReturnValue. ; CHECK-LABEL: define ptr @autoreleaseRVTailCall( ; CHECK: %[[V0:[0-9]+]] = tail call ptr @llvm.objc.autoreleaseReturnValue( ; CHECK: ret ptr %[[V0]] define ptr @autoreleaseRVTailCall() { %1 = call ptr @foo1() %2 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %1) ret ptr %1 } declare ptr @foo2(i32); ; CHECK-LABEL: define ptr @autoreleaseRVTailCallPhi( ; CHECK: %[[PHIVAL:.*]] = phi ptr [ %{{.*}}, %bb1 ], [ %{{.*}}, %bb2 ] ; CHECK: %[[RETVAL:.*]] = phi ptr [ %{{.*}}, %bb1 ], [ %{{.*}}, %bb2 ] ; CHECK: %[[V4:.*]] = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %[[PHIVAL]]) ; CHECK: ret ptr %[[V4]] define ptr @autoreleaseRVTailCallPhi(i1 %cond) { entry: br i1 %cond, label %bb1, label %bb2 bb1: %v0 = call ptr @foo2(i32 1) br label %bb3 bb2: %v2 = call ptr @foo2(i32 2) br label %bb3 bb3: %phival = phi ptr [ %v0, %bb1 ], [ %v2, %bb2 ] %retval = phi ptr [ %v0, %bb1 ], [ %v2, %bb2 ] %v4 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %phival) ret ptr %retval }