70 lines
4.6 KiB
LLVM
70 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s
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; RUN: opt < %s -passes=rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s
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; derived %next_element_ptr base %array_obj
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define i32 @null_in_array(i64 addrspace(1)* %array_obj) gc "statepoint-example" {
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; CHECK-LABEL: @null_in_array(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[ARRAY_LEN_POINTER_I64:%.*]] = getelementptr i64, i64 addrspace(1)* [[ARRAY_OBJ:%.*]], i32 1
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; CHECK-NEXT: [[ARRAY_LEN_POINTER_I32:%.*]] = bitcast i64 addrspace(1)* [[ARRAY_LEN_POINTER_I64]] to i32 addrspace(1)*
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; CHECK-NEXT: [[ARRAY_LEN:%.*]] = load i32, i32 addrspace(1)* [[ARRAY_LEN_POINTER_I32]], align 4
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; CHECK-NEXT: [[ARRAY_ELEMS:%.*]] = bitcast i32 addrspace(1)* [[ARRAY_LEN_POINTER_I32]] to i64 addrspace(1)* addrspace(1)*
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; CHECK-NEXT: br label [[LOOP_CHECK:%.*]]
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; CHECK: loop_check:
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; CHECK-NEXT: [[DOT0:%.*]] = phi i64 addrspace(1)* [ [[ARRAY_OBJ]], [[ENTRY:%.*]] ], [ [[ARRAY_OBJ_RELOCATED_CASTED:%.*]], [[LOOP_BACK:%.*]] ]
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; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[NEXT_INDEX:%.*]], [[LOOP_BACK]] ]
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; CHECK-NEXT: [[CURRENT_ELEMENT_PTR:%.*]] = phi i64 addrspace(1)* addrspace(1)* [ [[ARRAY_ELEMS]], [[ENTRY]] ], [ [[NEXT_ELEMENT_PTR_RELOCATED_CASTED:%.*]], [[LOOP_BACK]] ]
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; CHECK-NEXT: [[INDEX_LT:%.*]] = icmp ult i32 [[INDEX]], [[ARRAY_LEN]]
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; CHECK-NEXT: br i1 [[INDEX_LT]], label [[CHECK_FOR_NULL:%.*]], label [[NOT_FOUND:%.*]]
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; CHECK: check_for_null:
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; CHECK-NEXT: [[CURRENT_ELEMENT:%.*]] = load i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* [[CURRENT_ELEMENT_PTR]], align 8
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; CHECK-NEXT: [[IS_NULL:%.*]] = icmp eq i64 addrspace(1)* [[CURRENT_ELEMENT]], null
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; CHECK-NEXT: br i1 [[IS_NULL]], label [[FOUND:%.*]], label [[LOOP_BACK]]
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; CHECK: loop_back:
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; CHECK-NEXT: [[NEXT_ELEMENT_PTR:%.*]] = getelementptr i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* [[CURRENT_ELEMENT_PTR]], i32 1
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; CHECK-NEXT: [[NEXT_INDEX]] = add i32 [[INDEX]], 1
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; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* elementtype(void ()) @do_safepoint, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0), "gc-live"(i64 addrspace(1)* addrspace(1)* [[NEXT_ELEMENT_PTR]], i64 addrspace(1)* [[DOT0]]) ]
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; CHECK-NEXT: [[NEXT_ELEMENT_PTR_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 0)
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; CHECK-NEXT: [[NEXT_ELEMENT_PTR_RELOCATED_CASTED]] = bitcast i8 addrspace(1)* [[NEXT_ELEMENT_PTR_RELOCATED]] to i64 addrspace(1)* addrspace(1)*
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; CHECK-NEXT: [[ARRAY_OBJ_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 1)
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; CHECK-NEXT: [[ARRAY_OBJ_RELOCATED_CASTED]] = bitcast i8 addrspace(1)* [[ARRAY_OBJ_RELOCATED]] to i64 addrspace(1)*
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; CHECK-NEXT: br label [[LOOP_CHECK]]
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; CHECK: not_found:
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; CHECK-NEXT: ret i32 -1
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; CHECK: found:
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; CHECK-NEXT: ret i32 [[INDEX]]
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;
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entry:
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%array_len_pointer.i64 = getelementptr i64, i64 addrspace(1)* %array_obj, i32 1
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%array_len_pointer.i32 = bitcast i64 addrspace(1)* %array_len_pointer.i64 to i32 addrspace(1)*
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%array_len = load i32, i32 addrspace(1)* %array_len_pointer.i32
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%array_elems = bitcast i32 addrspace(1)* %array_len_pointer.i32 to i64 addrspace(1)* addrspace(1)*
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br label %loop_check
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loop_check: ; preds = %loop_back, %entry
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%index = phi i32 [ 0, %entry ], [ %next_index, %loop_back ]
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%current_element_ptr = phi i64 addrspace(1)* addrspace(1)* [ %array_elems, %entry ], [ %next_element_ptr, %loop_back ]
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%index_lt = icmp ult i32 %index, %array_len
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br i1 %index_lt, label %check_for_null, label %not_found
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check_for_null: ; preds = %loop_check
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%current_element = load i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr
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%is_null = icmp eq i64 addrspace(1)* %current_element, null
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br i1 %is_null, label %found, label %loop_back
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loop_back: ; preds = %check_for_null
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%next_element_ptr = getelementptr i64 addrspace(1)*, i64 addrspace(1)* addrspace(1)* %current_element_ptr, i32 1
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%next_index = add i32 %index, 1
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call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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br label %loop_check
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not_found: ; preds = %loop_check
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ret i32 -1
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found: ; preds = %check_for_null
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ret i32 %index
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}
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declare void @do_safepoint()
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