2 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -O0 -filetype=obj %s -o - | llvm-dwarfdump -v -debug-info - | FileCheck %s
4 ; Test case derived from compiling the following source with clang -g:
12 ; return f; // reference 'f' for now because otherwise we hit another bug
17 ; void func2(bool b, foo g) {
19 ; sink(&g); // reference 'f' for now because otherwise we hit another bug
23 ; CHECK: debug_info contents
24 ; The parameter is accessed indirectly (with a zero offset) from the second
25 ; register parameter. RDI is consumed by 'sret'.
26 ; CHECK: DW_TAG_subprogram
27 ; CHECK: DW_AT_name{{.*}} = "func"
28 ; CHECK: DW_TAG_formal_parameter
29 ; CHECK: DW_AT_location {{.*}}
30 ; CHECK-NEXT: DW_OP_breg4 RSI+0, DW_OP_deref
32 ; CHECK: DW_AT_name{{.*}} = "f"
34 ; CHECK: DW_TAG_subprogram
35 ; CHECK: DW_AT_name{{.*}} = "func2"
36 ; CHECK: DW_TAG_formal_parameter
37 ; CHECK: DW_AT_location{{.*}}(DW_OP_fbreg +23)
38 ; CHECK: DW_TAG_formal_parameter
39 ; CHECK: DW_AT_location{{.*}}(
40 ; CHECK-NEXT: {{.*}}: DW_OP_breg7 RSP+8, DW_OP_deref, DW_OP_deref
41 ; CHECK-NEXT: {{.*}}: DW_OP_breg4 RSI+0, DW_OP_deref
42 ; CHECK-NEXT: {{.*}}: DW_OP_breg7 RSP+8, DW_OP_deref, DW_OP_deref)
44 ; CHECK: DW_AT_name{{.*}} = "g"
46 %"struct.pr14763::foo" = type { i8 }
48 ; Function Attrs: uwtable
49 define void @_ZN7pr147634funcENS_3fooE(ptr noalias sret(%"struct.pr14763::foo") %agg.result, ptr %f) #0 !dbg !4 {
51 call void @llvm.dbg.declare(metadata ptr %f, metadata !22, metadata !DIExpression(DW_OP_deref)), !dbg !24
52 call void @_ZN7pr147633fooC1ERKS0_(ptr %agg.result, ptr %f), !dbg !25
56 ; Function Attrs: nounwind readnone
57 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
59 declare void @_ZN7pr147633fooC1ERKS0_(ptr, ptr) #2
61 ; Function Attrs: uwtable
62 define void @_ZN7pr147635func2EbNS_3fooE(i1 zeroext %b, ptr %g) #0 !dbg !17 {
64 %b.addr = alloca i8, align 1
65 %frombool = zext i1 %b to i8
66 store i8 %frombool, ptr %b.addr, align 1
67 call void @llvm.dbg.declare(metadata ptr %b.addr, metadata !26, metadata !DIExpression()), !dbg !27
68 call void @llvm.dbg.declare(metadata ptr %g, metadata !28, metadata !DIExpression(DW_OP_deref)), !dbg !27
69 %0 = load i8, ptr %b.addr, align 1, !dbg !29
70 %tobool = trunc i8 %0 to i1, !dbg !29
71 br i1 %tobool, label %if.then, label %if.end, !dbg !29
73 if.then: ; preds = %entry
74 call void @_ZN7pr147634sinkEPv(ptr %g), !dbg !31
75 br label %if.end, !dbg !31
77 if.end: ; preds = %if.then, %entry
81 declare void @_ZN7pr147634sinkEPv(ptr)
83 attributes #0 = { uwtable }
84 attributes #1 = { nounwind readnone }
87 !llvm.module.flags = !{!21, !33}
89 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
90 !1 = !DIFile(filename: "pass.cpp", directory: "/tmp")
92 !4 = distinct !DISubprogram(name: "func", linkageName: "_ZN7pr147634funcENS_3fooE", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2)
93 !5 = !DINamespace(name: "pr14763", scope: null)
94 !6 = !DISubroutineType(types: !7)
96 !8 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 2, size: 8, align: 8, file: !1, scope: !5, elements: !9)
98 !10 = !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !8, type: !11)
99 !11 = !DISubroutineType(types: !12)
100 !12 = !{null, !13, !14}
101 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8)
102 !14 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !15)
103 !15 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8)
104 !17 = distinct !DISubprogram(name: "func2", linkageName: "_ZN7pr147635func2EbNS_3fooE", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 12, file: !1, scope: !5, type: !18, retainedNodes: !2)
105 !18 = !DISubroutineType(types: !19)
106 !19 = !{null, !20, !8}
107 !20 = !DIBasicType(tag: DW_TAG_base_type, name: "bool", size: 8, align: 8, encoding: DW_ATE_boolean)
108 !21 = !{i32 2, !"Dwarf Version", i32 3}
109 !22 = !DILocalVariable(name: "f", line: 6, arg: 1, scope: !4, file: !23, type: !8)
110 !23 = !DIFile(filename: "pass.cpp", directory: "/tmp")
111 !24 = !DILocation(line: 6, scope: !4)
112 !25 = !DILocation(line: 7, scope: !4)
113 !26 = !DILocalVariable(name: "b", line: 12, arg: 1, scope: !17, file: !23, type: !20)
114 !27 = !DILocation(line: 12, scope: !17)
115 !28 = !DILocalVariable(name: "g", line: 12, arg: 2, scope: !17, file: !23, type: !8)
116 !29 = !DILocation(line: 13, scope: !30)
117 !30 = distinct !DILexicalBlock(line: 13, column: 0, file: !1, scope: !17)
118 !31 = !DILocation(line: 14, scope: !30)
119 !32 = !DILocation(line: 15, scope: !17)
120 !33 = !{i32 1, !"Debug Info Version", i32 3}