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
4target 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"
5
6@A = global [1024 x i32] zeroinitializer, align 16, !dbg !12
7@B = global [1024 x i32] zeroinitializer, align 16, !dbg !16
8@C = global [1024 x i32] zeroinitializer, align 16, !dbg !17
9
10; CHECK-LABEL: @test(
11define i32 @test() #0 !dbg !3 {
12entry:
13  tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !9, metadata !DIExpression()), !dbg !18
14  br label %for.body, !dbg !18
15
16for.body:
17  ;CHECK: load <4 x i32>
18  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
19  %arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvars.iv, !dbg !19
20  %0 = load i32, i32* %arrayidx, align 4, !dbg !19
21  %arrayidx2 = getelementptr inbounds [1024 x i32], [1024 x i32]* @C, i64 0, i64 %indvars.iv, !dbg !19
22  %1 = load i32, i32* %arrayidx2, align 4, !dbg !19
23  %add = add nsw i32 %1, %0, !dbg !19
24  %arrayidx4 = getelementptr inbounds [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvars.iv, !dbg !19
25  store i32 %add, i32* %arrayidx4, align 4, !dbg !19
26  %indvars.iv.next = add i64 %indvars.iv, 1, !dbg !18
27  tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !9, metadata !DIExpression()), !dbg !18
28  %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !18
29  %exitcond = icmp ne i32 %lftr.wideiv, 1024, !dbg !18
30  br i1 %exitcond, label %for.body, label %for.end, !dbg !18
31
32for.end:
33  ret i32 0, !dbg !24
34}
35
36declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
37
38declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
39
40attributes #0 = { nounwind ssp uwtable "fp-contract-model"="standard" "no-frame-pointer-elim" "no-frame-pointer-elim-non-leaf" "relocation-model"="pic" "ssp-buffers-size"="8" }
41attributes #1 = { nounwind readnone }
42
43!llvm.dbg.cu = !{!0}
44!llvm.module.flags = !{!26}
45
46!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang", isOptimized: true, emissionKind: FullDebug, file: !25, enums: !1, retainedTypes: !1, globals: !11)
47!1 = !{}
48!3 = distinct !DISubprogram(name: "test", linkageName: "test", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 5, file: !25, scope: !4, type: !5, variables: !8)
49!4 = !DIFile(filename: "test", directory: "/path/to/somewhere")
50!5 = !DISubroutineType(types: !6)
51!6 = !{!7}
52!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
53!8 = !{!9}
54!9 = !DILocalVariable(name: "i", line: 6, scope: !10, file: !4, type: !7)
55!10 = distinct !DILexicalBlock(line: 6, column: 0, file: !25, scope: !3)
56!11 = !{!12, !16, !17}
57!12 = !DIGlobalVariable(name: "A", line: 1, isLocal: false, isDefinition: true, scope: null, file: !4, type: !13)
58!13 = !DICompositeType(tag: DW_TAG_array_type, size: 32768, align: 32, baseType: !7, elements: !14)
59!14 = !{!15}
60!15 = !{i32 786465, i64 0, i64 1024}
61!16 = !DIGlobalVariable(name: "B", line: 2, isLocal: false, isDefinition: true, scope: null, file: !4, type: !13)
62!17 = !DIGlobalVariable(name: "C", line: 3, isLocal: false, isDefinition: true, scope: null, file: !4, type: !13)
63!18 = !DILocation(line: 6, scope: !10)
64!19 = !DILocation(line: 7, scope: !20)
65!20 = distinct !DILexicalBlock(line: 6, column: 0, file: !25, scope: !10)
66!24 = !DILocation(line: 9, scope: !3)
67!25 = !DIFile(filename: "test", directory: "/path/to/somewhere")
68!26 = !{i32 1, !"Debug Info Version", i32 3}
69