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; RUN: opt -S -objc-arc < %s | FileCheck %s
declare void @use_pointer(i8*)
declare i8* @returner()
declare i8* @llvm.objc.retain(i8*)
declare i8* @llvm.objc.autoreleaseReturnValue(i8*)
declare i8* @llvm.objc.retainAutoreleasedReturnValue(i8*)
; Clean up residue left behind after inlining.
; CHECK-LABEL: define void @test0(
; CHECK: entry:
; CHECK-NEXT: ret void
; CHECK-NEXT: }
define void @test0(i8* %call.i) {
entry:
%0 = tail call i8* @llvm.objc.retain(i8* %call.i) nounwind
%1 = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* %0) nounwind
ret void
}
; Same as test0, but with slightly different use arrangements.
; CHECK-LABEL: define void @test1(
; CHECK: entry:
; CHECK-NEXT: ret void
; CHECK-NEXT: }
define void @test1(i8* %call.i) {
entry:
%0 = tail call i8* @llvm.objc.retain(i8* %call.i) nounwind
%1 = tail call i8* @llvm.objc.autoreleaseReturnValue(i8* %call.i) nounwind
ret void
}
; Delete a retainRV+autoreleaseRV even if the pointer is used.
; CHECK-LABEL: define void @test24(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @use_pointer(i8* %p)
; CHECK-NEXT: ret void
; CHECK-NEXT: }
define void @test24(i8* %p) {
entry:
call i8* @llvm.objc.autoreleaseReturnValue(i8* %p) nounwind
call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %p) nounwind
call void @use_pointer(i8* %p)
ret void
}
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