• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump -debug-info -debug-loc - | FileCheck %s
2; Test that DW_OP_piece is emitted for constants.
3;
4; // Generated from:
5; typedef struct { int a, b; } I;
6; I i(int i) {
7;   I r = {i, 0};
8;   return r;
9; }
10;
11; typedef struct { float a, b; } F;
12; F f(float f) {
13;   F r = {f, 0};
14;   return r;
15; }
16
17; CHECK: .debug_info contents:
18; CHECK: DW_TAG_subprogram
19; CHECK:   DW_AT_name ("i")
20; CHECK:   DW_TAG_variable
21; CHECK-NEXT:   DW_AT_location ([[I:0x[0-9a-f]+]]
22; CHECK-NEXT:     [{{.*}}, {{.*}}): DW_OP_reg5 RDI, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4)
23; CHECK-NEXT:   DW_AT_name ("r")
24;
25; CHECK: DW_TAG_subprogram
26; CHECK:   DW_AT_name ("f")
27; CHECK:   DW_TAG_variable
28; CHECK-NEXT:   DW_AT_location ([[F:0x[0-9a-f]+]]
29; CHECK-NEXT:     [{{.*}}, {{.*}}): DW_OP_reg17 XMM0, DW_OP_piece 0x4, {{(DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4|DW_OP_implicit_value 0x4 0x00 0x00 0x00 0x00)}}
30; CHECK-NEXT:     [{{.*}}, {{.*}}): DW_OP_piece 0x4, {{(DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4|DW_OP_implicit_value 0x4 0x00 0x00 0x00 0x00)}})
31; CHECK-NEXT:   DW_AT_name ("r")
32;
33; CHECK: .debug_loc contents:
34; CHECK:      [[I]]:
35; CHECK-NEXT:   ({{.*}}, {{.*}}): DW_OP_reg5 RDI, DW_OP_piece 0x4, DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4
36; CHECK:      [[F]]:
37; CHECK-NEXT:   ({{.*}}, {{.*}}): DW_OP_reg17 XMM0, DW_OP_piece 0x4, {{DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4|DW_OP_implicit_value 0x4 0x00 0x00 0x00 0x00}}
38
39source_filename = "stack-value-piece.c"
40target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
41target triple = "x86_64-apple-macosx10.12.0"
42
43%struct.I = type { i32, i32 }
44%struct.F = type { float, float }
45
46; Function Attrs: nounwind readnone ssp uwtable
47define i64 @i(i32 %i) local_unnamed_addr #0 !dbg !7 {
48entry:
49  tail call void @llvm.dbg.value(metadata i32 %i, metadata !18, metadata !22), !dbg !21
50  tail call void @llvm.dbg.value(metadata i32 0, metadata !18, metadata !23), !dbg !21
51  %retval.sroa.0.0.insert.ext = zext i32 %i to i64, !dbg !24
52  ret i64 %retval.sroa.0.0.insert.ext, !dbg !24
53}
54
55; Function Attrs: nounwind readnone
56declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
57
58; Function Attrs: nounwind readnone ssp uwtable
59define <2 x float> @f(float %f) local_unnamed_addr #0 !dbg !25 {
60entry:
61  tail call void @llvm.dbg.value(metadata float %f, metadata !36, metadata !22), !dbg !38
62  tail call void @llvm.dbg.value(metadata float 0.000000e+00, metadata !36, metadata !23), !dbg !38
63  %retval.sroa.0.0.vec.insert = insertelement <2 x float> undef, float %f, i32 0, !dbg !39
64  %retval.sroa.0.4.vec.insert = insertelement <2 x float> %retval.sroa.0.0.vec.insert, float 0.000000e+00, i32 1, !dbg !39
65  ret <2 x float> %retval.sroa.0.4.vec.insert, !dbg !40
66}
67
68; Function Attrs: nounwind readnone
69declare void @llvm.dbg.value(metadata, metadata, metadata) #1
70
71attributes #0 = { nounwind readnone ssp uwtable }
72attributes #1 = { nounwind readnone }
73
74!llvm.dbg.cu = !{!0}
75!llvm.module.flags = !{!3, !4, !5}
76!llvm.ident = !{!6}
77
78!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 285655) (llvm/trunk 285654)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
79!1 = !DIFile(filename: "stack-value-piece.c", directory: "/")
80!2 = !{}
81!3 = !{i32 2, !"Dwarf Version", i32 4}
82!4 = !{i32 2, !"Debug Info Version", i32 3}
83!5 = !{i32 1, !"PIC Level", i32 2}
84!6 = !{!"clang version 4.0.0 (trunk 285655) (llvm/trunk 285654)"}
85!7 = distinct !DISubprogram(name: "i", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
86!8 = !DISubroutineType(types: !9)
87!9 = !{!10, !14}
88!10 = !DIDerivedType(tag: DW_TAG_typedef, name: "I", file: !1, line: 1, baseType: !11)
89!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 1, size: 64, elements: !12)
90!12 = !{!13, !15}
91!13 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !11, file: !1, line: 1, baseType: !14, size: 32)
92!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
93!15 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !11, file: !1, line: 1, baseType: !14, size: 32, offset: 32)
94!18 = !DILocalVariable(name: "r", scope: !7, file: !1, line: 3, type: !10)
95!19 = !DIExpression()
96!20 = !DILocation(line: 2, column: 9, scope: !7)
97!21 = !DILocation(line: 3, column: 5, scope: !7)
98!22 = !DIExpression(DW_OP_LLVM_fragment, 0, 32)
99!23 = !DIExpression(DW_OP_LLVM_fragment, 32, 32)
100!24 = !DILocation(line: 5, column: 1, scope: !7)
101!25 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 8, type: !26, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
102!26 = !DISubroutineType(types: !27)
103!27 = !{!28, !32}
104!28 = !DIDerivedType(tag: DW_TAG_typedef, name: "F", file: !1, line: 7, baseType: !29)
105!29 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 7, size: 64, elements: !30)
106!30 = !{!31, !33}
107!31 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !29, file: !1, line: 7, baseType: !32, size: 32)
108!32 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
109!33 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !29, file: !1, line: 7, baseType: !32, size: 32, offset: 32)
110!36 = !DILocalVariable(name: "r", scope: !25, file: !1, line: 9, type: !28)
111!37 = !DILocation(line: 8, column: 11, scope: !25)
112!38 = !DILocation(line: 9, column: 5, scope: !25)
113!39 = !DILocation(line: 10, column: 10, scope: !25)
114!40 = !DILocation(line: 11, column: 1, scope: !25)
115