1 ; RUN: opt %s -rewrite-statepoints-for-gc -spp-print-base-pointers -S 2>&1 | FileCheck %s 2 3 ; CHECK: derived %next_element_ptr base %array_obj 4 5 define i32 @null_in_array(i64 addrspace(1)* %array_obj) gc "statepoint-example" { 6 entry: 7 %array_len_pointer.i64 = getelementptr i64, i64 addrspace(1)* %array_obj, i32 1 8 %array_len_pointer.i32 = bitcast i64 addrspace(1)* %array_len_pointer.i64 to i32 addrspace(1)* 9 %array_len = load i32, i32 addrspace(1)* %array_len_pointer.i32 10 %array_elems = bitcast i32 addrspace(1)* %array_len_pointer.i32 to i64 addrspace(1)* addrspace(1)* 11 br label %loop_check 12 13 loop_check: 14 %index = phi i32 [ 0, %entry ], [ %next_index, %loop_back ] 15 %current_element_ptr = phi i64 addrspace(1)* addrspace(1)* [ %array_elems, %entry ], [ %next_element_ptr, %loop_back ] 16 %index_lt = icmp ult i32 %index, %array_len 17 br i1 %index_lt, label %check_for_null, label %not_found 18 19 check_for_null: 20 %current_element = load i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr 21 %is_null = icmp eq i64 addrspace(1)* %current_element, null 22 br i1 %is_null, label %found, label %loop_back 23 24 loop_back: 25 %next_element_ptr = getelementptr i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr, i32 1 26 %next_index = add i32 %index, 1 27 %safepoint_token = call i32 (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 5, i32 0, i32 -1, i32 0, i32 0, i32 0) 28 br label %loop_check 29 30 not_found: 31 ret i32 -1 32 33 found: 34 ret i32 %index 35 } 36 37 declare void @do_safepoint() 38 declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
