1; RUN: opt < %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
2; RUN: opt < %s -passes=rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s
3
4; CHECK: derived %next_element_ptr base %array_obj
5
6define i32 @null_in_array(i64 addrspace(1)* %array_obj) gc "statepoint-example" {
7entry:
8  %array_len_pointer.i64 = getelementptr i64, i64 addrspace(1)* %array_obj, i32 1
9  %array_len_pointer.i32 = bitcast i64 addrspace(1)* %array_len_pointer.i64 to i32 addrspace(1)*
10  %array_len = load i32, i32 addrspace(1)* %array_len_pointer.i32
11  %array_elems = bitcast i32 addrspace(1)* %array_len_pointer.i32 to i64 addrspace(1)* addrspace(1)*
12  br label %loop_check
13
14loop_check:                                       ; preds = %loop_back, %entry
15  %index = phi i32 [ 0, %entry ], [ %next_index, %loop_back ]
16  %current_element_ptr = phi i64 addrspace(1)* addrspace(1)* [ %array_elems, %entry ], [ %next_element_ptr, %loop_back ]
17  %index_lt = icmp ult i32 %index, %array_len
18  br i1 %index_lt, label %check_for_null, label %not_found
19
20check_for_null:                                   ; preds = %loop_check
21  %current_element = load i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr
22  %is_null = icmp eq i64 addrspace(1)* %current_element, null
23  br i1 %is_null, label %found, label %loop_back
24
25loop_back:                                        ; preds = %check_for_null
26  %next_element_ptr = getelementptr i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr, i32 1
27  %next_index = add i32 %index, 1
28  call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
29  br label %loop_check
30
31not_found:                                        ; preds = %loop_check
32  ret i32 -1
33
34found:                                            ; preds = %check_for_null
35  ret i32 %index
36}
37
38declare void @do_safepoint()
39