1 ; RUN: opt -S -objc-arc -objc-arc-contract < %s | FileCheck %s 2 3 ; Test that the optimizer can create an objc_retainAutoreleaseReturnValue 4 ; declaration even if no objc_retain declaration exists. 5 ; rdar://9401303 6 7 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 8 declare i8* @objc_unretainedObject(i8*) 9 declare i8* @objc_retainAutoreleasedReturnValue(i8*) 10 declare i8* @objc_autoreleaseReturnValue(i8*) 11 12 ; CHECK: define i8* @foo(i8* %p) { 13 ; CHECK-NEXT: entry: 14 ; CHECK-NEXT: %0 = tail call i8* @objc_retainAutoreleaseReturnValue(i8* %p) nounwind 15 ; CHECK-NEXT: ret i8* %0 16 ; CHECK-NEXT: } 17 18 define i8* @foo(i8* %p) { 19 entry: 20 %call = tail call i8* @objc_unretainedObject(i8* %p) 21 %0 = tail call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind 22 %1 = tail call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind 23 ret i8* %1 24 } 25 26
