Index: test/DebugInfo/debuglabel.ll =================================================================== --- /dev/null +++ test/DebugInfo/debuglabel.ll @@ -0,0 +1,88 @@ +; RUN: llc -O0 -filetype=obj -o - %s | llvm-dwarfdump -v - | FileCheck %s +; +; CHECK: .debug_info contents: +; CHECK: DW_TAG_label +; CHECK-NEXT: DW_AT_name [DW_FORM_strp] +; CHECK-SAME: top +; CHECK-NEXT: DW_AT_decl_file [DW_FORM_data1] +; CHECK-SAME: debuglabel.c +; CHECK-NEXT: DW_AT_decl_line [DW_FORM_data1] +; CHECK-SAME: 4 +; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr] +; CHECK-SAME: {{0x[0-9a-f]+}} +; CHECK: DW_TAG_label +; CHECK-NEXT: DW_AT_name [DW_FORM_strp] +; CHECK-SAME: done +; CHECK-NEXT: DW_AT_decl_file [DW_FORM_data1] +; CHECK-SAME: debuglabel.c +; CHECK-NEXT: DW_AT_decl_line [DW_FORM_data1] +; CHECK-SAME: 7 +; CHECK-NEXT: DW_AT_low_pc [DW_FORM_addr] +; CHECK-SAME: {{0x[0-9a-f]+}} +; +; RUN: llc -O0 -o - %s | FileCheck %s -check-prefix=ASM +; +; ASM: [[TOP_LOW_PC:[.0-9a-zA-Z]+]]:{{[[:space:]].*}}DEBUG_LABEL: foo:top +; ASM: [[DONE_LOW_PC:[.0-9a-zA-Z]+]]:{{[[:space:]].*}}DEBUG_LABEL: foo:done +; ASM-LABEL: .debug_str +; ASM: [[TOP_LABEL:[.0-9a-zA-Z]+]]:{{[[:space:]].*}}"top" +; ASM: [[DONE_LABEL:[.0-9a-zA-Z]+]]:{{[[:space:]].*}}"done" +; ASM-LABEL: .debug_info +; ASM: DW_TAG_label +; ASM-NEXT: [[TOP_LABEL]] # DW_AT_name +; ASM-NEXT: 1 # DW_AT_decl_file +; ASM-NEXT: 4 # DW_AT_decl_line +; ASM-NEXT: [[TOP_LOW_PC]] # DW_AT_low_pc +; ASM: DW_TAG_label +; ASM-NEXT: [[DONE_LABEL]] # DW_AT_name +; ASM-NEXT: 1 # DW_AT_decl_file +; ASM-NEXT: 7 # DW_AT_decl_line +; ASM-NEXT: [[DONE_LOW_PC]] # DW_AT_low_pc + +source_filename = "debuglabel.c" +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +define dso_local i32 @foo(i32 %a, i32 %b) !dbg !6 { +entry: + %a.addr = alloca i32, align 4 + %b.addr = alloca i32, align 4 + %sum = alloca i32, align 4 + store i32 %a, i32* %a.addr, align 4 + store i32 %b, i32* %b.addr, align 4 + br label %top + +top: + call void @llvm.dbg.label(metadata !10), !dbg !11 + %0 = load i32, i32* %a.addr, align 4 + %1 = load i32, i32* %b.addr, align 4 + %add = add nsw i32 %0, %1 + store i32 %add, i32* %sum, align 4 + br label %done + +done: + call void @llvm.dbg.label(metadata !12), !dbg !13 + %2 = load i32, i32* %sum, align 4 + ret i32 %2, !dbg !14 +} + +declare void @llvm.dbg.label(metadata) + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4, !5} + +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) +!1 = !DIFile(filename: "debuglabel.c", directory: "./") +!2 = !{} +!3 = !{i32 2, !"Dwarf Version", i32 4} +!4 = !{i32 2, !"Debug Info Version", i32 3} +!5 = !{i32 1, !"wchar_size", i32 4} +!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) +!7 = !DISubroutineType(types: !8) +!8 = !{!9, !9, !9} +!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!10 = !DILabel(scope: !6, name: "top", file: !1, line: 4) +!11 = !DILocation(line: 4, column: 1, scope: !6) +!12 = !DILabel(scope: !6, name: "done", file: !1, line: 7) +!13 = !DILocation(line: 7, column: 1, scope: !6) +!14 = !DILocation(line: 8, column: 3, scope: !6)