1# RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \ 2# RUN: | llvm-dwarfdump -v -name=param - | FileCheck %s 3# 4# Generated with opt -sroa -inline, llc -stop-after=livedebugvalues, with some 5# 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 enclosing 23# scope. We expect to see a single location entry despite the fact that the 24# 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 !0 38 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 !24 43 store i32 %number, ptr @glob, align 4, !dbg !27 44 %tobool = icmp ne i32 %number, 0, !dbg !32 45 br i1 %tobool, label %return, label %if.end, !dbg !34 46 47 if.end: ; preds = %entry 48 br label %return, !dbg !35 49 50 return: ; preds = %entry, %if.end 51 %retval.0 = phi i32 [ 1, %if.end ], [ 0, %entry ], !dbg !16 52 ret i32 %retval.0, !dbg !36 53 } 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: fun 94body: | 95 bb.0.entry: 96 successors: %bb.2(0x50000000), %bb.1(0x30000000) 97 liveins: $edi 98 99 DBG_VALUE $edi, $noreg, !17, !DIExpression(), debug-location !24 100 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 $eflags 102 TEST32rr killed renamable $edi, renamable $edi, implicit-def $eflags, debug-location !32 103 JCC_1 %bb.1, 4, implicit $eflags, debug-location !34 104 105 bb.2.return: 106 liveins: $eax 107 108 RET64 $eax, debug-location !36 109 110 bb.1.if.end: 111 renamable $eax = MOV32ri 1 112 RET64 $eax, debug-location !36 113 114... 115