83 lines
3.4 KiB
Plaintext
83 lines
3.4 KiB
Plaintext
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# RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \
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# RUN: | llvm-dwarfdump -v - | FileCheck %s
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#
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# Generated at -O2, stopped after livedebugvalues, with some metadata removed
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# by hand:
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# int global;
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# void ext();
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# void fun(int p) {
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# {
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# int local = p;
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# global = local;
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# }
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# ext();
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# }
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#
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# The variable 'local' is available for the entirety of its enclosing scope so
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# we expect to see a single location entry.
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#
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# Except for 'local', all DILocalVariable metadata has been removed.
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#
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# CHECK: DW_TAG_lexical_block [
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# CHECK: DW_TAG_variable
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# CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_reg5 RDI)
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# CHECK-NEXT: DW_AT_name {{.*}} = "local"
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--- |
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target triple = "x86_64-unknown-linux-gnu"
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@global = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0
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define dso_local void @fun(i32 %p) local_unnamed_addr !dbg !15 {
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entry:
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call void @llvm.dbg.value(metadata i32 %p, metadata !20, metadata !DIExpression()), !dbg !23
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store i32 %p, i32* @global, align 4, !dbg !24
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tail call void (...) @ext(), !dbg !29
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ret void, !dbg !30
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}
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declare !dbg !6 dso_local void @ext(...) local_unnamed_addr
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!11, !12, !13}
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!llvm.ident = !{!14}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "global", scope: !2, file: !3, line: 1, type: !10, isLocal: false, isDefinition: true)
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!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)
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!3 = !DIFile(filename: "test.c", directory: "/")
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!4 = !{}
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!5 = !{!6}
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!6 = !DISubprogram(name: "ext", scope: !3, file: !3, line: 2, type: !7, spFlags: DISPFlagOptimized, retainedNodes: !4)
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!7 = !DISubroutineType(types: !8)
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!8 = !{null, null}
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!9 = !{!0}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{i32 7, !"Dwarf Version", i32 4}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{i32 1, !"wchar_size", i32 4}
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!14 = !{!"clang version 11.0.0"}
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!15 = distinct !DISubprogram(name: "fun", scope: !3, file: !3, line: 3, type: !16, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !18)
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!16 = !DISubroutineType(types: !17)
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!17 = !{null, !10}
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!18 = !{!20}
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!20 = !DILocalVariable(name: "local", scope: !21, file: !3, line: 5, type: !10)
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!21 = distinct !DILexicalBlock(scope: !15, file: !3, line: 4, column: 3)
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!22 = !DILocation(line: 0, scope: !15)
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!23 = !DILocation(line: 0, scope: !21)
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!24 = !DILocation(line: 6, column: 12, scope: !21)
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!29 = !DILocation(line: 8, column: 3, scope: !15)
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!30 = !DILocation(line: 9, column: 1, scope: !15)
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...
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---
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name: fun
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body: |
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bb.0.entry:
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liveins: $edi
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DBG_VALUE $edi, $noreg, !20, !DIExpression(), debug-location !23
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MOV32mr $rip, 1, $noreg, @global, $noreg, killed renamable $edi, debug-location !24 :: (store 4 into @global)
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dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !29
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TAILJMPd64 @ext, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $al, debug-location !29
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...
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