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1# RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \2# RUN: | llvm-dwarfdump -v -name=param - | FileCheck %s3#4# Generated with opt -sroa -inline, llc -stop-after=livedebugvalues, with some5# metadata removed by hand.6#7# int glob;8# __attribute__((always_inline))9# static void inline_me(int param) {10# {11# int local = param;12# glob = local;13# }14# }15# int fun(int number) {16# inline_me(number);17# if (number)18# return 0;19# return 1;20# }21#22# The inlined parameter 'param' is available for the entirety of its enclosing23# scope. We expect to see a single location entry despite the fact that the24# final instruction in that scope belongs to a dominated scope.25#26# Except for 'param', all DILocalVariable metadata has been removed.27#28# Ignore first entry (abstract), we want to look at the concrete instance.29# CHECK: DW_TAG_formal_parameter [30# CHECK: DW_TAG_formal_parameter [31# CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_reg5 RDI)32# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "param"33 34--- |35 target triple = "x86_64-unknown-linux-gnu"36 37 @glob = dso_local global i32 0, align 4, !dbg !038 declare void @llvm.dbg.declare(metadata, metadata, metadata)39 declare void @llvm.dbg.value(metadata, metadata, metadata)40 define dso_local i32 @fun(i32 %number) !dbg !11 {41 entry:42 call void @llvm.dbg.value(metadata i32 %number, metadata !17, metadata !DIExpression()), !dbg !2443 store i32 %number, ptr @glob, align 4, !dbg !2744 %tobool = icmp ne i32 %number, 0, !dbg !3245 br i1 %tobool, label %return, label %if.end, !dbg !3446 47 if.end: ; preds = %entry48 br label %return, !dbg !3549 50 return: ; preds = %entry, %if.end51 %retval.0 = phi i32 [ 1, %if.end ], [ 0, %entry ], !dbg !1652 ret i32 %retval.0, !dbg !3653 }54 55 !llvm.dbg.cu = !{!2}56 !llvm.module.flags = !{!7, !8, !9}57 !llvm.ident = !{!10}58 59 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())60 !1 = distinct !DIGlobalVariable(name: "glob", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)61 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)62 !3 = !DIFile(filename: "test.c", directory: "/")63 !4 = !{}64 !5 = !{!0}65 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)66 !7 = !{i32 7, !"Dwarf Version", i32 4}67 !8 = !{i32 2, !"Debug Info Version", i32 3}68 !9 = !{i32 1, !"wchar_size", i32 4}69 !10 = !{!"clang version 11.0.0"}70 !11 = distinct !DISubprogram(name: "fun", scope: !3, file: !3, line: 9, type: !12, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !14)71 !12 = !DISubroutineType(types: !13)72 !13 = !{!6, !6}73 !14 = !{}74 !16 = !DILocation(line: 0, scope: !11)75 !17 = !DILocalVariable(name: "param", arg: 1, scope: !18, file: !3, line: 3, type: !6)76 !18 = distinct !DISubprogram(name: "inline_me", scope: !3, file: !3, line: 3, type: !19, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21)77 !19 = !DISubroutineType(types: !20)78 !20 = !{null, !6}79 !21 = !{!17}80 !23 = distinct !DILexicalBlock(scope: !18, file: !3, line: 4, column: 3)81 !24 = !DILocation(line: 0, scope: !18, inlinedAt: !25)82 !25 = distinct !DILocation(line: 10, column: 3, scope: !11)83 !26 = !DILocation(line: 0, scope: !23, inlinedAt: !25)84 !27 = !DILocation(line: 6, column: 10, scope: !23, inlinedAt: !25)85 !32 = !DILocation(line: 11, column: 7, scope: !33)86 !33 = distinct !DILexicalBlock(scope: !11, file: !3, line: 11, column: 7)87 !34 = !DILocation(line: 11, column: 7, scope: !11)88 !35 = !DILocation(line: 13, column: 3, scope: !11)89 !36 = !DILocation(line: 14, column: 1, scope: !11)90 91...92---93name: fun94body: |95 bb.0.entry:96 successors: %bb.2(0x50000000), %bb.1(0x30000000)97 liveins: $edi98 99 DBG_VALUE $edi, $noreg, !17, !DIExpression(), debug-location !24100 MOV32mr $rip, 1, $noreg, @glob, $noreg, renamable $edi, debug-location !27 :: (store (s32) into @glob)101 renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags102 TEST32rr killed renamable $edi, renamable $edi, implicit-def $eflags, debug-location !32103 JCC_1 %bb.1, 4, implicit $eflags, debug-location !34104 105 bb.2.return:106 liveins: $eax107 108 RET64 $eax, debug-location !36109 110 bb.1.if.end:111 renamable $eax = MOV32ri 1112 RET64 $eax, debug-location !36113 114...115