xref: /llvm-project/llvm/test/Transforms/JumpThreading/preserving-debugloc-fold-select.ll (revision 3773191fc4e088fb06592e0404296f6051b1d4f7) 
1; RUN: opt < %s -S -passes=jump-threading | FileCheck %s
2
3; Test the debug location update of the newly created PHINode
4; which replaces the select instruction in .exit block.
5
6define i32 @unfold3(i32 %u, i32 %v, i32 %w, i32 %x, i32 %y, i32 %z, i32 %j) !dbg !5 {
7; CHECK:       .exit.thread4:
8; CHECK-NEXT:    [[TMP0:%.*]] = phi i32 {{.*}}, !dbg [[DBG29:![0-9]+]]
9; CHECK-NEXT:    ret i32 [[TMP0]], !dbg [[DBG30:![0-9]+]]
10;
11; CHECK: [[DBG29]] = !DILocation(line: 13,
12;
13entry:
14  %add3 = add nsw i32 %j, 2, !dbg !19
15  %cmp.i = icmp slt i32 %u, %v, !dbg !20
16  br i1 %cmp.i, label %.exit, label %cond.false.i, !dbg !21
17
18cond.false.i:                                     ; preds = %entry
19  %cmp4.i = icmp sgt i32 %u, %v, !dbg !22
20  br i1 %cmp4.i, label %.exit, label %cond.false.6.i, !dbg !23
21
22cond.false.6.i:                                   ; preds = %cond.false.i
23  %cmp8.i = icmp slt i32 %w, %x, !dbg !24
24  br i1 %cmp8.i, label %.exit, label %cond.false.10.i, !dbg !25
25
26cond.false.10.i:                                  ; preds = %cond.false.6.i
27  %cmp13.i = icmp sgt i32 %w, %x, !dbg !26
28  br i1 %cmp13.i, label %.exit, label %cond.false.15.i, !dbg !27
29
30cond.false.15.i:                                  ; preds = %cond.false.10.i
31  %phitmp = icmp sge i32 %y, %z, !dbg !28
32  br label %.exit, !dbg !29
33
34.exit:                                            ; preds = %cond.false.15.i, %cond.false.10.i, %cond.false.6.i, %cond.false.i, %entry
35  %cond23.i = phi i1 [ false, %entry ], [ true, %cond.false.i ], [ false, %cond.false.6.i ], [ %phitmp, %cond.false.15.i ], [ true, %cond.false.10.i ], !dbg !30
36  %j.add3 = select i1 %cond23.i, i32 %j, i32 %add3, !dbg !31
37  ret i32 %j.add3, !dbg !32
38}
39
40!llvm.dbg.cu = !{!0}
41!llvm.debugify = !{!2, !3}
42!llvm.module.flags = !{!4}
43
44!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
45!1 = !DIFile(filename: "preserving-debugloc-trytofoldselect.ll", directory: "/")
46!2 = !{i32 14}
47!3 = !{i32 8}
48!4 = !{i32 2, !"Debug Info Version", i32 3}
49!5 = distinct !DISubprogram(name: "unfold3", linkageName: "unfold3", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
50!6 = !DISubroutineType(types: !7)
51!7 = !{}
52!8 = !{!9, !11, !13, !14, !15, !16, !17, !18}
53!9 = !DILocalVariable(name: "1", scope: !5, file: !1, line: 1, type: !10)
54!10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
55!11 = !DILocalVariable(name: "2", scope: !5, file: !1, line: 2, type: !12)
56!12 = !DIBasicType(name: "ty8", size: 8, encoding: DW_ATE_unsigned)
57!13 = !DILocalVariable(name: "3", scope: !5, file: !1, line: 4, type: !12)
58!14 = !DILocalVariable(name: "4", scope: !5, file: !1, line: 6, type: !12)
59!15 = !DILocalVariable(name: "5", scope: !5, file: !1, line: 8, type: !12)
60!16 = !DILocalVariable(name: "6", scope: !5, file: !1, line: 10, type: !12)
61!17 = !DILocalVariable(name: "7", scope: !5, file: !1, line: 12, type: !12)
62!18 = !DILocalVariable(name: "8", scope: !5, file: !1, line: 13, type: !10)
63!19 = !DILocation(line: 1, column: 1, scope: !5)
64!20 = !DILocation(line: 2, column: 1, scope: !5)
65!21 = !DILocation(line: 3, column: 1, scope: !5)
66!22 = !DILocation(line: 4, column: 1, scope: !5)
67!23 = !DILocation(line: 5, column: 1, scope: !5)
68!24 = !DILocation(line: 6, column: 1, scope: !5)
69!25 = !DILocation(line: 7, column: 1, scope: !5)
70!26 = !DILocation(line: 8, column: 1, scope: !5)
71!27 = !DILocation(line: 9, column: 1, scope: !5)
72!28 = !DILocation(line: 10, column: 1, scope: !5)
73!29 = !DILocation(line: 11, column: 1, scope: !5)
74!30 = !DILocation(line: 12, column: 1, scope: !5)
75!31 = !DILocation(line: 13, column: 1, scope: !5)
76!32 = !DILocation(line: 14, column: 1, scope: !5)
77