xref: /llvm-project/llvm/test/Transforms/SCCP/clang-arc-rv.ll (revision 0991da36906bdb29b8f1030d5123bafb58fee79e) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
3; Return value can't be zapped if there is a call that has operand bundle
4; "clang.arc.attachedcall".
5
6@g0 = global i8 zeroinitializer, align 1
7
8define internal ptr @foo() {
9; CHECK-LABEL: @foo(
10; CHECK-NEXT:    ret ptr @g0
11;
12  ret ptr @g0
13}
14
15define void @test() {
16; CHECK-LABEL: @test(
17; CHECK-NEXT:    [[R:%.*]] = call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ]
18; CHECK-NEXT:    call void (...) @llvm.objc.clang.arc.noop.use(ptr [[R]])
19; CHECK-NEXT:    ret void
20;
21  %r = call ptr @foo() [ "clang.arc.attachedcall"(ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue) ]
22  call void (...) @llvm.objc.clang.arc.noop.use(ptr %r)
23  ret void
24}
25
26declare ptr @llvm.objc.unsafeClaimAutoreleasedReturnValue(ptr)
27declare void @llvm.objc.clang.arc.noop.use(...)
28