1; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s
2; This tests a fragment that partially covers subregister compositions.
3;
4; Our fragment is 96 bits long and lies in a 128-bit register, which
5; in turn has to be composed out of its two 64-bit subregisters.
6
7; CHECK: .debug_info
8; CHECK: DW_TAG_subprogram
9; CHECK:   DW_AT_name {{.*}}"subscript.get"
10; CHECK:  DW_TAG_formal_parameter
11; CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset]	(0x00000000)
12; CHECK: .debug_loc
13; CHECK: 0x00000000: Beginning address offset
14; CHECK-NEXT:           Ending address offset
15; CHECK-NEXT:            Location description: 90 90 02 93 08 90 91 02 93 04
16;                        d16, piece 0x00000008, d17, piece 0x00000004
17source_filename = "simd.ll"
18target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
19target triple = "armv7-apple-ios7.0"
20
21; Function Attrs: nounwind readnone
22declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #0
23
24define <3 x float> @_TFV4simd8float2x3g9subscriptFSiVS_6float3(i32, <3 x float>, <3 x float>) !dbg !5 {
25entry:
26  tail call void @llvm.dbg.value(metadata <3 x float> %1, i64 0, metadata !8, metadata !9), !dbg !10
27  tail call void @llvm.dbg.value(metadata <3 x float> %2, i64 0, metadata !8, metadata !11), !dbg !10
28  %3 = icmp eq i32 %0, 0, !dbg !12
29  br i1 %3, label %7, label %4, !dbg !12
30
31; <label>:4:                                      ; preds = %entry
32  %5 = icmp eq i32 %0, 1, !dbg !15
33  br i1 %5, label %7, label %6, !dbg !15
34
35; <label>:6:                                      ; preds = %4
36  unreachable, !dbg !17
37
38; <label>:7:                                      ; preds = %4, %entry
39  %8 = phi <3 x float> [ %1, %entry ], [ %2, %4 ], !dbg !18
40  ret <3 x float> %8, !dbg !18
41}
42
43attributes #0 = { nounwind readnone }
44
45!llvm.dbg.cu = !{!0}
46!llvm.module.flags = !{!3, !4}
47
48!0 = distinct !DICompileUnit(language: DW_LANG_Swift, file: !1, producer: "Swift", isOptimized: false, runtimeVersion: 3, emissionKind: FullDebug, enums: !2, imports: !2)
49!1 = !DIFile(filename: "simd.swift", directory: "/")
50!2 = !{}
51!3 = !{i32 2, !"Dwarf Version", i32 4}
52!4 = !{i32 2, !"Debug Info Version", i32 3}
53!5 = distinct !DISubprogram(name: "subscript.get", linkageName: "_TFV4simd8float2x3g9subscriptFSiVS_6float3", scope: !6, file: !1, type: !7, isLocal: false, isDefinition: true, isOptimized: true, unit: !0, variables: !2)
54!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "float2x3", scope: !0, file: !1, line: 5824, size: 256, align: 128, elements: !2, runtimeLang: DW_LANG_Swift, identifier: "_TtV4simd8float2x3")
55!7 = !DISubroutineType(types: !2)
56!8 = !DILocalVariable(name: "self", arg: 2, scope: !5, file: !1, line: 5897, type: !6, flags: DIFlagArtificial)
57!9 = !DIExpression(DW_OP_LLVM_fragment, 0, 96)
58!10 = !DILocation(line: 5897, column: 5, scope: !5)
59!11 = !DIExpression(DW_OP_LLVM_fragment, 96, 96)
60!12 = !DILocation(line: 5900, column: 12, scope: !13)
61!13 = distinct !DILexicalBlock(scope: !14, file: !1, line: 5898, column: 7)
62!14 = distinct !DILexicalBlock(scope: !5, file: !1, line: 5897, column: 9)
63!15 = !DILocation(line: 5902, column: 12, scope: !16)
64!16 = distinct !DILexicalBlock(scope: !14, file: !1, line: 5898, column: 7)
65!17 = !DILocation(line: 0, scope: !5)
66!18 = !DILocation(line: 5906, column: 5, scope: !14)
67