1; RUN: llc < %s - -filetype=obj | llvm-dwarfdump -debug-dump=loc - | FileCheck %s
2target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
3target triple = "thumbv7-apple-macosx10.6.7"
4
5; The S registers on ARM are expressed as pieces of their super-registers in DWARF.
6;
7; 0x90   DW_OP_regx of super-register
8; 0x93   DW_OP_piece
9; 0x9d   DW_OP_bit_piece
10; CHECK:            Location description: 90 {{.. .. ((93 ..)|(9d .. ..)) $}}
11
12define void @_Z3foov() optsize ssp !dbg !1 {
13entry:
14  %call = tail call float @_Z3barv() optsize, !dbg !11
15  tail call void @llvm.dbg.value(metadata float %call, i64 0, metadata !5, metadata !DIExpression()), !dbg !11
16  %call16 = tail call float @_Z2f2v() optsize, !dbg !12
17  %cmp7 = fcmp olt float %call, %call16, !dbg !12
18  br i1 %cmp7, label %for.body, label %for.end, !dbg !12
19
20for.body:                                         ; preds = %entry, %for.body
21  %k.08 = phi float [ %inc, %for.body ], [ %call, %entry ]
22  %call4 = tail call float @_Z2f3f(float %k.08) optsize, !dbg !13
23  %inc = fadd float %k.08, 1.000000e+00, !dbg !14
24  %call1 = tail call float @_Z2f2v() optsize, !dbg !12
25  %cmp = fcmp olt float %inc, %call1, !dbg !12
26  br i1 %cmp, label %for.body, label %for.end, !dbg !12
27
28for.end:                                          ; preds = %for.body, %entry
29  ret void, !dbg !15
30}
31
32declare float @_Z3barv() optsize
33
34declare float @_Z2f2v() optsize
35
36declare float @_Z2f3f(float) optsize
37
38declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
39
40!llvm.dbg.cu = !{!0}
41!llvm.module.flags = !{!20}
42
43!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.0 (trunk 130845)", isOptimized: true, emissionKind: 1, file: !18, enums: !19, retainedTypes: !19, subprograms: !16, imports:  null)
44!1 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 5, file: !18, scope: !2, type: !3, variables: !17)
45!2 = !DIFile(filename: "k.cc", directory: "/private/tmp")
46!3 = !DISubroutineType(types: !4)
47!4 = !{null}
48!5 = !DILocalVariable(name: "k", line: 6, scope: !6, file: !2, type: !7)
49!6 = distinct !DILexicalBlock(line: 5, column: 12, file: !18, scope: !1)
50!7 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
51!8 = !DILocalVariable(name: "y", line: 8, scope: !9, file: !2, type: !7)
52!9 = distinct !DILexicalBlock(line: 7, column: 25, file: !18, scope: !10)
53!10 = distinct !DILexicalBlock(line: 7, column: 3, file: !18, scope: !6)
54!11 = !DILocation(line: 6, column: 18, scope: !6)
55!12 = !DILocation(line: 7, column: 3, scope: !6)
56!13 = !DILocation(line: 8, column: 20, scope: !9)
57!14 = !DILocation(line: 7, column: 20, scope: !10)
58!15 = !DILocation(line: 10, column: 1, scope: !6)
59!16 = !{!1}
60!17 = !{!5, !8}
61!18 = !DIFile(filename: "k.cc", directory: "/private/tmp")
62!19 = !{}
63!20 = !{i32 1, !"Debug Info Version", i32 3}
64