1*9880d681SAndroid Build Coastguard Worker; RUN: opt -objc-arc -S < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; Generated by compiling: 4*9880d681SAndroid Build Coastguard Worker; 5*9880d681SAndroid Build Coastguard Worker; id baz(void *X) { return (__bridge_transfer id)X; } 6*9880d681SAndroid Build Coastguard Worker; 7*9880d681SAndroid Build Coastguard Worker; void foo(id X) { 8*9880d681SAndroid Build Coastguard Worker; void *Y = 0; 9*9880d681SAndroid Build Coastguard Worker; if (X) 10*9880d681SAndroid Build Coastguard Worker; Y = (__bridge_retained void *)X; 11*9880d681SAndroid Build Coastguard Worker; baz(Y); 12*9880d681SAndroid Build Coastguard Worker; } 13*9880d681SAndroid Build Coastguard Worker; 14*9880d681SAndroid Build Coastguard Worker; clang -x objective-c -mllvm -enable-objc-arc-opts=0 -fobjc-arc -S -emit-llvm test.m 15*9880d681SAndroid Build Coastguard Worker; 16*9880d681SAndroid Build Coastguard Worker; And then hand-reduced further. 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Workerdeclare i8* @objc_autoreleaseReturnValue(i8*) 19*9880d681SAndroid Build Coastguard Workerdeclare i8* @objc_unsafeClaimAutoreleasedReturnValue(i8*) 20*9880d681SAndroid Build Coastguard Workerdeclare i8* @objc_retain(i8*) 21*9880d681SAndroid Build Coastguard Workerdeclare void @objc_release(i8*) 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Workerdefine void @foo(i8* %X) { 24*9880d681SAndroid Build Coastguard Workerentry: 25*9880d681SAndroid Build Coastguard Worker %0 = tail call i8* @objc_retain(i8* %X) 26*9880d681SAndroid Build Coastguard Worker %tobool = icmp eq i8* %0, null 27*9880d681SAndroid Build Coastguard Worker br i1 %tobool, label %if.end, label %if.then 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Workerif.then: ; preds = %entry 30*9880d681SAndroid Build Coastguard Worker %1 = tail call i8* @objc_retain(i8* nonnull %0) 31*9880d681SAndroid Build Coastguard Worker br label %if.end 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Workerif.end: ; preds = %if.then, %entry 34*9880d681SAndroid Build Coastguard Worker %Y.0 = phi i8* [ %1, %if.then ], [ null, %entry ] 35*9880d681SAndroid Build Coastguard Worker %2 = tail call i8* @objc_autoreleaseReturnValue(i8* %Y.0) 36*9880d681SAndroid Build Coastguard Worker %3 = tail call i8* @objc_unsafeClaimAutoreleasedReturnValue(i8* %2) 37*9880d681SAndroid Build Coastguard Worker tail call void @objc_release(i8* %0) 38*9880d681SAndroid Build Coastguard Worker ret void 39*9880d681SAndroid Build Coastguard Worker} 40*9880d681SAndroid Build Coastguard Worker 41*9880d681SAndroid Build Coastguard Worker; CHECK: if.then 42*9880d681SAndroid Build Coastguard Worker; CHECK: tail call i8* @objc_retain 43*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: call i8* @objc_autorelease 44*9880d681SAndroid Build Coastguard Worker; CHECK: %Y.0 = phi 45*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: tail call i8* @objc_unsafeClaimAutoreleasedReturnValue(i8* %Y.0) 46*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: tail call void @objc_release 47*9880d681SAndroid Build Coastguard Worker 48