1; RUN: opt < %s -S -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine | FileCheck %s
2; Make sure we vectorize with debugging turned on.
3
4source_filename = "test/Transforms/LoopVectorize/dbg.value.ll"
5target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
6
7@A = global [1024 x i32] zeroinitializer, align 16, !dbg !0
8@B = global [1024 x i32] zeroinitializer, align 16, !dbg !7
9@C = global [1024 x i32] zeroinitializer, align 16, !dbg !9
10; CHECK-LABEL: @test(
11
12; Function Attrs: nounwind ssp uwtable
13define i32 @test() #0 !dbg !15 {
14entry:
15  tail call void @llvm.dbg.value(metadata i32 0, metadata !19, metadata !21), !dbg !22
16  br label %for.body, !dbg !22
17
18for.body:                                         ; preds = %for.body, %entry
19  ;CHECK: load <4 x i32>
20  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
21  %arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvars.iv, !dbg !23
22  %0 = load i32, i32* %arrayidx, align 4, !dbg !23
23  %arrayidx2 = getelementptr inbounds [1024 x i32], [1024 x i32]* @C, i64 0, i64 %indvars.iv, !dbg !23
24  %1 = load i32, i32* %arrayidx2, align 4, !dbg !23
25  %add = add nsw i32 %1, %0, !dbg !23
26  %arrayidx4 = getelementptr inbounds [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvars.iv, !dbg !23
27  store i32 %add, i32* %arrayidx4, align 4, !dbg !23
28  %indvars.iv.next = add i64 %indvars.iv, 1, !dbg !22
29  tail call void @llvm.dbg.value(metadata !12, metadata !19, metadata !21), !dbg !22
30  %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !22
31  %exitcond = icmp ne i32 %lftr.wideiv, 1024, !dbg !22
32  br i1 %exitcond, label %for.body, label %for.end, !dbg !22
33
34for.end:                                          ; preds = %for.body
35  ret i32 0, !dbg !25
36}
37
38; Function Attrs: nounwind readnone
39
40declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
41
42; Function Attrs: nounwind readnone
43declare void @llvm.dbg.value(metadata, metadata, metadata) #1
44
45attributes #0 = { nounwind ssp uwtable "fp-contract-model"="standard" "frame-pointer"="non-leaf" "relocation-model"="pic" "ssp-buffers-size"="8" }
46attributes #1 = { nounwind readnone }
47
48!llvm.dbg.cu = !{!11}
49!llvm.module.flags = !{!14}
50
51!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
52!1 = !DIGlobalVariable(name: "A", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
53!2 = !DIFile(filename: "test", directory: "/path/to/somewhere")
54!3 = !DICompositeType(tag: DW_TAG_array_type, baseType: !4, size: 32768, align: 32, elements: !5)
55!4 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
56!5 = !{!6}
57!6 = !{i32 786465, i64 0, i64 1024}
58!7 = !DIGlobalVariableExpression(var: !8, expr: !DIExpression())
59!8 = !DIGlobalVariable(name: "B", scope: null, file: !2, line: 2, type: !3, isLocal: false, isDefinition: true)
60!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression())
61!10 = !DIGlobalVariable(name: "C", scope: null, file: !2, line: 3, type: !3, isLocal: false, isDefinition: true)
62!11 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !12, retainedTypes: !12, globals: !13)
63!12 = !{}
64!13 = !{!0, !7, !9}
65!14 = !{i32 1, !"Debug Info Version", i32 3}
66!15 = distinct !DISubprogram(name: "test", linkageName: "test", scope: !2, file: !2, line: 5, type: !16, isLocal: false, isDefinition: true, scopeLine: 5, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !11, retainedNodes: !18)
67!16 = !DISubroutineType(types: !17)
68!17 = !{!4}
69!18 = !{!19}
70!19 = !DILocalVariable(name: "i", scope: !20, file: !2, line: 6, type: !4)
71!20 = distinct !DILexicalBlock(scope: !15, file: !2, line: 6)
72!21 = !DIExpression()
73!22 = !DILocation(line: 6, scope: !20)
74!23 = !DILocation(line: 7, scope: !24)
75!24 = distinct !DILexicalBlock(scope: !20, file: !2, line: 6)
76!25 = !DILocation(line: 9, scope: !15)
77
78