1; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=4 --basic-block-sections=none -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s 2; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=4 --basic-block-sections=all -filetype=obj -o - | llvm-dwarfdump - | FileCheck --check-prefix=SECTIONS %s 3; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=5 --basic-block-sections=none -filetype=obj -o - | llvm-dwarfdump - | FileCheck %s 4; RUN: llc %s -mtriple=x86_64-unknown-linux-gnu --dwarf-version=5 --basic-block-sections=all -filetype=obj -o - | llvm-dwarfdump - | FileCheck --check-prefix=SECTIONS %s 5 6; CHECK: DW_TAG_variable 7; CHECK-NEXT: DW_AT_location 8; CHECK-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +7, DW_OP_stack_value 9; CHECK-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +8, DW_OP_stack_value 10; CHECK-NEXT: DW_AT_name ("i") 11 12; SECTIONS: DW_TAG_variable 13; SECTIONS-NEXT: DW_AT_location 14; SECTIONS-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +7, DW_OP_stack_value 15; SECTIONS-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +8, DW_OP_stack_value 16; SECTIONS-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +8, DW_OP_stack_value 17; SECTIONS-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +8, DW_OP_stack_value 18; SECTIONS-NEXT: DW_AT_name ("i") 19 20; Source to generate the IR below: 21; void f1(); 22; extern bool b; 23; void test() { 24; // i is not a const throughout the whole scope and should 25; // not use DW_AT_const_value 26; int i = 7; 27; f1(); 28; i = 8; 29; if (b) 30; f1(); 31; } 32; $ clang++ -S loclist_section.cc -O2 -g -emit-llvm 33 34@b = external local_unnamed_addr global i8, align 1 35 36; Function Attrs: mustprogress uwtable 37define dso_local void @_Z4testv() local_unnamed_addr #0 !dbg !10 { 38entry: 39 #dbg_value(i32 7, !14, !DIExpression(), !16) 40 tail call void @_Z2f1v(), !dbg !17 41 #dbg_value(i32 8, !14, !DIExpression(), !16) 42 %0 = load i8, ptr @b, align 1, !dbg !18, !tbaa !20, !range !24, !noundef !25 43 %loadedv = trunc nuw i8 %0 to i1, !dbg !18 44 br i1 %loadedv, label %if.then, label %if.end, !dbg !26 45 46if.then: ; preds = %entry 47 tail call void @_Z2f1v(), !dbg !27 48 br label %if.end, !dbg !27 49 50if.end: ; preds = %if.then, %entry 51 ret void, !dbg !28 52} 53 54declare !dbg !29 void @_Z2f1v() local_unnamed_addr #1 55 56attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } 57attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" } 58 59!llvm.dbg.cu = !{!0} 60!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8} 61!llvm.ident = !{!9} 62 63!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 20.0.0git (git@github.com:)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) 64!1 = !DIFile(filename: "loclist_section.cc", directory: "Examples/debug_loc", checksumkind: CSK_MD5, checksum: "67769a94389681c8a6da481e2f358abb") 65!2 = !{i32 7, !"Dwarf Version", i32 5} 66!3 = !{i32 2, !"Debug Info Version", i32 3} 67!4 = !{i32 1, !"wchar_size", i32 4} 68!5 = !{i32 8, !"PIC Level", i32 2} 69!6 = !{i32 7, !"PIE Level", i32 2} 70!7 = !{i32 7, !"uwtable", i32 2} 71!8 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 72!9 = !{!"clang version 20.0.0git (git@github.com:.../llvm-project.git 7c3256280a78b0505ae4d43985c4d3239451a151)"} 73!10 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", scope: !1, file: !1, line: 3, type: !11, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13) 74!11 = !DISubroutineType(types: !12) 75!12 = !{null} 76!13 = !{!14} 77!14 = !DILocalVariable(name: "i", scope: !10, file: !1, line: 6, type: !15) 78!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 79!16 = !DILocation(line: 0, scope: !10) 80!17 = !DILocation(line: 7, column: 5, scope: !10) 81!18 = !DILocation(line: 9, column: 9, scope: !19) 82!19 = distinct !DILexicalBlock(scope: !10, file: !1, line: 9, column: 9) 83!20 = !{!21, !21, i64 0} 84!21 = !{!"bool", !22, i64 0} 85!22 = !{!"omnipotent char", !23, i64 0} 86!23 = !{!"Simple C++ TBAA"} 87!24 = !{i8 0, i8 2} 88!25 = !{} 89!26 = !DILocation(line: 9, column: 9, scope: !10) 90!27 = !DILocation(line: 10, column: 7, scope: !19) 91!28 = !DILocation(line: 11, column: 1, scope: !10) 92!29 = !DISubprogram(name: "f1", linkageName: "_Z2f1v", scope: !1, file: !1, line: 1, type: !11, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized) 93