1; RUN: llc -O2 < %s | FileCheck %s
2; RUN: llc -O2 -regalloc=basic < %s | FileCheck %s
3source_filename = "test/CodeGen/X86/2010-05-26-DotDebugLoc.ll"
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"
5target triple = "x86_64-apple-darwin10"
6
7%struct.a = type { i32, %struct.a* }
8
9@llvm.used = appending global [1 x i8*] [i8* bitcast (i8* (%struct.a*)* @bar to i8*)], section "llvm.metadata"
10
11; Function Attrs: noinline nounwind optsize ssp
12define i8* @bar(%struct.a* %myvar) #0 !dbg !8 {
13entry:
14  tail call void @llvm.dbg.value(metadata %struct.a* %myvar, i64 0, metadata !18, metadata !19), !dbg !20
15  %0 = getelementptr inbounds %struct.a, %struct.a* %myvar, i64 0, i32 0, !dbg !21
16  %1 = load i32, i32* %0, align 8, !dbg !21
17  tail call void @foo(i32 %1) #0, !dbg !21
18  %2 = bitcast %struct.a* %myvar to i8*, !dbg !23
19  ret i8* %2, !dbg !23
20}
21
22; Function Attrs: noinline nounwind optsize ssp
23declare void @foo(i32) #0
24
25; Function Attrs: nounwind readnone
26declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
27
28attributes #0 = { noinline nounwind optsize ssp }
29attributes #1 = { nounwind readnone }
30
31!llvm.dbg.cu = !{!0}
32!llvm.module.flags = !{!7}
33
34!0 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !3, imports: !2)
35!1 = !DIFile(filename: "foo.c", directory: "/tmp/")
36!2 = !{}
37!3 = !{!4}
38!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
39!5 = !DIGlobalVariable(name: "ret", scope: !1, file: !1, line: 7, type: !6, isLocal: false, isDefinition: true)
40!6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
41!7 = !{i32 1, !"Debug Info Version", i32 3}
42!8 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: !1, file: !1, line: 17, type: !9, isLocal: false, isDefinition: true, scopeLine: 17, virtualIndex: 6, isOptimized: true, unit: !0, retainedNodes: !17)
43!9 = !DISubroutineType(types: !10)
44!10 = !{!11, !12}
45!11 = !DIDerivedType(tag: DW_TAG_pointer_type, scope: !1, file: !1, baseType: null, size: 64, align: 64)
46!12 = !DIDerivedType(tag: DW_TAG_pointer_type, scope: !1, file: !1, baseType: !13, size: 64, align: 64)
47!13 = !DICompositeType(tag: DW_TAG_structure_type, name: "a", scope: !1, file: !1, line: 2, size: 128, align: 64, elements: !14)
48!14 = !{!15, !16}
49!15 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !13, file: !1, line: 3, baseType: !6, size: 32, align: 32)
50!16 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !13, file: !1, line: 4, baseType: !12, size: 64, align: 64, offset: 64)
51!17 = !{!18}
52!18 = !DILocalVariable(name: "myvar", arg: 1, scope: !8, file: !1, line: 17, type: !12)
53!19 = !DIExpression()
54!20 = !DILocation(line: 0, scope: !8)
55!21 = !DILocation(line: 18, scope: !22)
56!22 = distinct !DILexicalBlock(scope: !8, file: !1, line: 17)
57!23 = !DILocation(line: 19, scope: !22)
58
59; The variable bar:myvar changes registers after the first movq.
60; It is cobbered by popq %rbx
61; CHECK: movq
62; CHECK-NEXT: [[LABEL:Ltmp[0-9]*]]
63; CHECK: .loc	1 19 0
64; CHECK: popq
65; CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]
66
67; CHECK: Ldebug_loc0:
68; CHECK-NEXT: .set [[SET1:.*]], Lfunc_begin0-Lfunc_begin0
69; CHECK-NEXT: .quad   [[SET1]]
70; CHECK-NEXT: .set [[SET2:.*]], [[LABEL]]-Lfunc_begin0
71; CHECK-NEXT: .quad   [[SET2]]
72; CHECK-NEXT: .short  1     ## Loc expr size
73; CHECK-NEXT: .byte   85
74; CHECK-NEXT: .set [[SET3:.*]], [[LABEL]]-Lfunc_begin0
75; CHECK-NEXT: .quad   [[SET3]]
76; CHECK-NEXT: .set [[SET4:.*]], [[CLOBBER]]-Lfunc_begin0
77; CHECK-NEXT: .quad   [[SET4]]
78; CHECK-NEXT: .short  1     ## Loc expr size
79; CHECK-NEXT: .byte   83
80