| ; RUN: opt < %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s |
| ; RUN: opt < %s -passes=rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s |
| |
| ; CHECK: derived %next_element_ptr base %array_obj |
| |
| define i32 @null_in_array(i64 addrspace(1)* %array_obj) gc "statepoint-example" { |
| entry: |
| %array_len_pointer.i64 = getelementptr i64, i64 addrspace(1)* %array_obj, i32 1 |
| %array_len_pointer.i32 = bitcast i64 addrspace(1)* %array_len_pointer.i64 to i32 addrspace(1)* |
| %array_len = load i32, i32 addrspace(1)* %array_len_pointer.i32 |
| %array_elems = bitcast i32 addrspace(1)* %array_len_pointer.i32 to i64 addrspace(1)* addrspace(1)* |
| br label %loop_check |
| |
| loop_check: ; preds = %loop_back, %entry |
| %index = phi i32 [ 0, %entry ], [ %next_index, %loop_back ] |
| %current_element_ptr = phi i64 addrspace(1)* addrspace(1)* [ %array_elems, %entry ], [ %next_element_ptr, %loop_back ] |
| %index_lt = icmp ult i32 %index, %array_len |
| br i1 %index_lt, label %check_for_null, label %not_found |
| |
| check_for_null: ; preds = %loop_check |
| %current_element = load i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr |
| %is_null = icmp eq i64 addrspace(1)* %current_element, null |
| br i1 %is_null, label %found, label %loop_back |
| |
| loop_back: ; preds = %check_for_null |
| %next_element_ptr = getelementptr i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr, i32 1 |
| %next_index = add i32 %index, 1 |
| call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ] |
| br label %loop_check |
| |
| not_found: ; preds = %loop_check |
| ret i32 -1 |
| |
| found: ; preds = %check_for_null |
| ret i32 %index |
| } |
| |
| declare void @do_safepoint() |
