1 ; RUN: opt -licm -S <%s | FileCheck %s
2 ; Test that licm doesn't sink/delete debug info.
3 define i32 @foo(i32 %a, i32 %j) nounwind {
6 call void @llvm.dbg.func.start(metadata !0)
7 call void @llvm.dbg.stoppoint(i32 3, i32 5, metadata !1)
8 ;CHECK: %mul = mul i32 %j, %j
13 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
14 %s.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ]
15 call void @llvm.dbg.stoppoint(i32 4, i32 5, metadata !1)
16 ; CHECK: call void @llvm.dbg.stoppoint(i32 4, i32 5, metadata !1)
17 %cmp = icmp slt i32 %i.0, %a
18 br i1 %cmp, label %for.body, label %for.end
22 call void @llvm.dbg.stoppoint(i32 5, i32 2, metadata !1)
23 ;CHECK: call void @llvm.dbg.stoppoint(i32 5, i32 2, metadata !1)
25 %add = add nsw i32 %s.0, %mul
30 call void @llvm.dbg.stoppoint(i32 4, i32 18, metadata !1)
31 ;CHECK: call void @llvm.dbg.stoppoint(i32 4, i32 18, metadata !1)
32 %inc = add nsw i32 %i.0, 1
36 call void @llvm.dbg.stoppoint(i32 7, i32 5, metadata !1)
39 ; <label>:0 ; preds = %for.end
40 call void @llvm.dbg.stoppoint(i32 8, i32 1, metadata !1)
41 call void @llvm.dbg.region.end(metadata !0)
45 declare void @llvm.dbg.func.start(metadata) nounwind readnone
47 declare void @llvm.dbg.declare({ }*, metadata) nounwind readnone
49 declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone
51 declare void @llvm.dbg.region.end(metadata) nounwind readnone
53 !0 = metadata !{i32 458798, i32 0, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", metadata !1, i32 2, metadata !2, i1 false, i1 true}; [DW_TAG_subprogram ]
54 !1 = metadata !{i32 458769, i32 0, i32 12, metadata !"licm.c", metadata !"/home/edwin", metadata !"clang 1.1", i1 true, i1 false, metadata !"", i32 0}; [DW_TAG_compile_unit ]
55 !2 = metadata !{i32 458788, metadata !1, metadata !"int", metadata !1, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5}; [DW_TAG_base_type ]