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 %s --check-prefix=CHECK --check-prefix=SECTIONS
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 %s --check-prefix=CHECK --check-prefix=SECTIONS
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 ; SECTIONS-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +7, DW_OP_stack_value
10 ; CHECK-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +9, DW_OP_stack_value
11 ; CHECK-NEXT: [0x{{[0-9a-f]+}}, 0x{{[0-9a-f]+}}): DW_OP_consts +7, DW_OP_stack_value
12 ; CHECK-NEXT: DW_AT_name ("i")
14 ; Source to generate the IR below:
20 ; // i's value is 7 for the first call in in the if block. With basic
21 ; // block sections, this would split the range across sections and would
22 ; // result in an extra entry than without sections.
31 ; $ clang++ -S -emit-llvm -g -O2 loclist_2.cc
34 @b = external dso_local local_unnamed_addr global i8, align 1
36 define dso_local void @_Z4testv() local_unnamed_addr !dbg !7 {
38 call void @llvm.dbg.value(metadata i32 7, metadata !11, metadata !DIExpression()), !dbg !13
39 tail call void @_Z2f1v(), !dbg !14
40 %0 = load i8, ptr @b, align 1, !dbg !15, !tbaa !17, !range !21
41 %tobool.not = icmp eq i8 %0, 0, !dbg !15
42 br i1 %tobool.not, label %if.end, label %if.then, !dbg !22
44 if.then: ; preds = %entry
45 %call = tail call i32 @_Z2f2i(i32 7), !dbg !23
46 call void @llvm.dbg.value(metadata i32 9, metadata !11, metadata !DIExpression()), !dbg !13
47 %call1 = tail call i32 @_Z2f2i(i32 9), !dbg !25
48 br label %if.end, !dbg !26
50 if.end: ; preds = %if.then, %entry
54 declare !dbg !28 dso_local void @_Z2f1v() local_unnamed_addr
56 declare !dbg !29 dso_local i32 @_Z2f2i(i32) local_unnamed_addr
58 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
59 declare void @llvm.dbg.value(metadata, metadata, metadata) #2
62 !llvm.module.flags = !{!3, !4, !5}
65 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 13.0.0 (git@github.com:llvm/llvm-project.git 593cb4655097552ac6d81ce18a2851ae0feb8d3c)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
66 !1 = !DIFile(filename: "loclist_2.cc", directory: "/code")
68 !3 = !{i32 7, !"Dwarf Version", i32 4}
69 !4 = !{i32 2, !"Debug Info Version", i32 3}
70 !5 = !{i32 1, !"wchar_size", i32 4}
71 !6 = !{!"clang version 13.0.0 (git@github.com:llvm/llvm-project.git 593cb4655097552ac6d81ce18a2851ae0feb8d3c)"}
72 !7 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", scope: !1, file: !1, line: 5, type: !8, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
73 !8 = !DISubroutineType(types: !9)
76 !11 = !DILocalVariable(name: "i", scope: !7, file: !1, line: 14, type: !12)
77 !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
78 !13 = !DILocation(line: 0, scope: !7)
79 !14 = !DILocation(line: 15, column: 5, scope: !7)
80 !15 = !DILocation(line: 16, column: 9, scope: !16)
81 !16 = distinct !DILexicalBlock(scope: !7, file: !1, line: 16, column: 9)
82 !17 = !{!18, !18, i64 0}
83 !18 = !{!"bool", !19, i64 0}
84 !19 = !{!"omnipotent char", !20, i64 0}
85 !20 = !{!"Simple C++ TBAA"}
87 !22 = !DILocation(line: 16, column: 9, scope: !7)
88 !23 = !DILocation(line: 17, column: 7, scope: !24)
89 !24 = distinct !DILexicalBlock(scope: !16, file: !1, line: 16, column: 12)
90 !25 = !DILocation(line: 19, column: 7, scope: !24)
91 !26 = !DILocation(line: 20, column: 5, scope: !24)
92 !27 = !DILocation(line: 21, column: 1, scope: !7)
93 !28 = !DISubprogram(name: "f1", linkageName: "_Z2f1v", scope: !1, file: !1, line: 1, type: !8, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
94 !29 = !DISubprogram(name: "f2", linkageName: "_Z2f2i", scope: !1, file: !1, line: 2, type: !30, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
95 !30 = !DISubroutineType(types: !31)