1 # RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \
2 # RUN: | llvm-dwarfdump -v -name=parama - | FileCheck %s
4 # Generated with -O2, llc -stop-after=livedebugvalues, with IR modified from
9 # static void set(int parama, int paramb) {
13 # void funone(int one, int two) {
15 # // 'two = ...' sunk between the inlined assignments to globa and globa.
20 # void funtwo(int one, int two) {
22 # // 'two = ...' sunk between the inlined assignments to globa and globa,
23 # // and rdi is clobbered by the sunk 'two = ...'.
29 # Check that the 'parama' is available for the entire inlined scope in funone,
30 # and that it is unavailable in the second DW_AT_ranges segment of the inlined
31 # scope in funtwo. In both cases the inlined scope 'set' is intrerrupted by an
32 # instruction from the calling function.
34 # Except for 'parama', all DILocalVariable metadata has been removed.
36 # Ignore first entry (abstract), we want to look at the concrete instances.
37 # CHECK: DW_TAG_formal_parameter [
38 # CHECK: DW_TAG_formal_parameter [
39 # CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_reg5 RDI)
40 # CHECK-NEXT: DW_AT_abstract_origin {{.*}} "parama"
41 # CHECK: DW_TAG_formal_parameter [
42 # CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset]
43 # CHECK-NEXT: [0x{{[0-9a-b]+}}, 0x{{[0-9a-b]+}})
44 # CHECK-NEXT: DW_AT_abstract_origin {{.*}} "parama"
47 target triple = "x86_64-unknown-linux-gnu"
49 @globa = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0
50 @globb = dso_local local_unnamed_addr global i32 0, align 4, !dbg !10
52 declare !dbg !6 dso_local void @ext(...) local_unnamed_addr
53 declare void @llvm.dbg.value(metadata, metadata, metadata)
55 define dso_local void @funone(i32 %one, i32 %two) local_unnamed_addr !dbg !17 {
57 call void @llvm.dbg.value(metadata i32 %one, metadata !20, metadata !DIExpression()), !dbg !23
58 store i32 %one, i32* @globa, align 4, !dbg !25
59 %add = add nsw i32 %two, %one, !dbg !30
60 store i32 %add, i32* @globb, align 4, !dbg !31
61 %cmp = icmp sgt i32 %add, 0, !dbg !32
62 br i1 %cmp, label %if.then, label %if.end, !dbg !34
64 if.then: ; preds = %entry
65 tail call void (...) @ext(), !dbg !35
68 if.end: ; preds = %entry
72 define dso_local void @funtwo(i32 %one, i32 %two) local_unnamed_addr !dbg !37 {
74 call void @llvm.dbg.value(metadata i32 %one, metadata !20, metadata !DIExpression()), !dbg !41
75 store i32 %one, i32* @globa, align 4, !dbg !43
76 %add = add nsw i32 %two, %one, !dbg !44
77 store i32 %add, i32* @globb, align 4, !dbg !45
78 %cmp = icmp sgt i32 %two, 0, !dbg !46
79 br i1 %cmp, label %if.then, label %if.end, !dbg !48
81 if.then: ; preds = %entry
82 tail call void (...) @ext(), !dbg !49
85 if.end: ; preds = %entry
90 !llvm.module.flags = !{!13, !14, !15}
93 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
94 !1 = distinct !DIGlobalVariable(name: "globa", scope: !2, file: !3, line: 16, type: !12, isLocal: false, isDefinition: true)
95 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !9, splitDebugInlining: false, nameTableKind: None)
96 !3 = !DIFile(filename: "test.c", directory: "/")
99 !6 = !DISubprogram(name: "ext", scope: !3, file: !3, line: 17, type: !7, spFlags: DISPFlagOptimized, retainedNodes: !4)
100 !7 = !DISubroutineType(types: !8)
103 !10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression())
104 !11 = distinct !DIGlobalVariable(name: "globb", scope: !2, file: !3, line: 16, type: !12, isLocal: false, isDefinition: true)
105 !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
106 !13 = !{i32 7, !"Dwarf Version", i32 4}
107 !14 = !{i32 2, !"Debug Info Version", i32 3}
108 !15 = !{i32 1, !"wchar_size", i32 4}
109 !16 = !{!"clang version 11.0.0"}
110 !17 = distinct !DISubprogram(name: "funone", scope: !3, file: !3, line: 22, type: !18, scopeLine: 22, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)
111 !18 = !DISubroutineType(types: !19)
112 !19 = !{null, !12, !12}
113 !20 = !DILocalVariable(name: "parama", arg: 1, scope: !21, file: !3, line: 18, type: !12)
114 !21 = distinct !DISubprogram(name: "set", scope: !3, file: !3, line: 18, type: !18, scopeLine: 18, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !22)
116 !23 = !DILocation(line: 0, scope: !21, inlinedAt: !24)
117 !24 = distinct !DILocation(line: 24, column: 3, scope: !17)
118 !25 = !DILocation(line: 19, column: 9, scope: !21, inlinedAt: !24)
119 !30 = !DILocation(line: 23, column: 13, scope: !17)
120 !31 = !DILocation(line: 20, column: 9, scope: !21, inlinedAt: !24)
121 !32 = !DILocation(line: 25, column: 11, scope: !33)
122 !33 = distinct !DILexicalBlock(scope: !17, file: !3, line: 25, column: 7)
123 !34 = !DILocation(line: 25, column: 7, scope: !17)
124 !35 = !DILocation(line: 26, column: 12, scope: !33)
125 !36 = !DILocation(line: 27, column: 1, scope: !17)
126 !37 = distinct !DISubprogram(name: "funtwo", scope: !3, file: !3, line: 28, type: !18, scopeLine: 28, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !38)
128 !41 = !DILocation(line: 0, scope: !21, inlinedAt: !42)
129 !42 = distinct !DILocation(line: 30, column: 3, scope: !37)
130 !43 = !DILocation(line: 19, column: 9, scope: !21, inlinedAt: !42)
131 !44 = !DILocation(line: 29, column: 13, scope: !37)
132 !45 = !DILocation(line: 20, column: 9, scope: !21, inlinedAt: !42)
133 !46 = !DILocation(line: 31, column: 11, scope: !47)
134 !47 = distinct !DILexicalBlock(scope: !37, file: !3, line: 31, column: 7)
135 !48 = !DILocation(line: 31, column: 7, scope: !37)
136 !49 = !DILocation(line: 32, column: 12, scope: !47)
137 !50 = !DILocation(line: 33, column: 1, scope: !37)
144 successors: %bb.2(0x50000000), %bb.1(0x30000000)
147 DBG_VALUE $edi, $noreg, !20, !DIExpression(), debug-location !23
148 MOV32mr $rip, 1, $noreg, @globa, $noreg, renamable $edi, debug-location !25 :: (store (s32) into @globa)
149 renamable $esi = ADD32rr killed renamable $esi, killed renamable $edi, implicit-def $eflags, debug-location !32
150 MOV32mr $rip, 1, $noreg, @globb, $noreg, killed renamable $esi, debug-location !31 :: (store (s32) into @globb)
151 JCC_1 %bb.1, 14, implicit $eflags, debug-location !34
154 dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !35
155 TAILJMPd64 @ext, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $al, debug-location !35
158 RETQ debug-location !36
165 successors: %bb.2(0x50000000), %bb.1(0x30000000)
168 DBG_VALUE $edi, $noreg, !20, !DIExpression(), debug-location !41
169 MOV32mr $rip, 1, $noreg, @globa, $noreg, renamable $edi, debug-location !43 :: (store (s32) into @globa)
170 renamable $edi = nsw ADD32rr killed renamable $edi, renamable $esi, implicit-def dead $eflags, debug-location !44
171 MOV32mr $rip, 1, $noreg, @globb, $noreg, killed renamable $edi, debug-location !45 :: (store (s32) into @globb)
172 TEST32rr killed renamable $esi, renamable $esi, implicit-def $eflags, debug-location !46
173 JCC_1 %bb.1, 14, implicit $eflags, debug-location !48
176 dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !49
177 TAILJMPd64 @ext, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $al, debug-location !49
180 RETQ debug-location !50