test/Bitcode/dbg-record-roundtrip.ll

;; Roundtrip tests.

; RUN: llvm-as %s -o - \
; RUN: | llvm-dis \
; RUN: | FileCheck %s --check-prefixes=RECORDS

;; Check that verify-uselistorder passes with bitcode and textual IR.
; RUN: llvm-as %s -o - | verify-uselistorder
; RUN: verify-uselistorder %s

;; Confirm we're producing RemoveDI records from various tools.
; RUN: opt %s -o - | llvm-bcanalyzer - | FileCheck %s --check-prefix=BITCODE
; RUN: llvm-as %s -o - | llvm-bcanalyzer - | FileCheck %s --check-prefix=BITCODE
; BITCODE-DAG: DEBUG_RECORD_LABEL
; BITCODE-DAG: DEBUG_RECORD_VALUE
; BITCODE-DAG: DEBUG_RECORD_ASSIGN
; BITCODE-DAG: DEBUG_RECORD_DECLARE

;; Checks inline.

@g = internal dso_local global i32 0, align 4, !dbg !0

define internal dso_local noundef i32 @_Z3funv(i32 %p, ptr %storage) !dbg !13 {
entry:
;; Dbg record at top of block, check dbg.value configurations.
; CHECK: entry:
; RECORDS: entry:
; RECORDS-NEXT: dbg_value(i32 %p, ![[e:[0-9]+]], !DIExpression(), ![[dbg:[0-9]+]])
; RECORDS-NEXT: dbg_value(![[empty:[0-9]+]], ![[e]], !DIExpression(), ![[dbg]])
; RECORDS-NEXT: dbg_value(i32 poison, ![[e]], !DIExpression(), ![[dbg]])
; RECORDS-NEXT: dbg_value(i32 1, ![[f:[0-9]+]], !DIExpression(), ![[dbg]])
    #dbg_value(i32 %p, !32, !DIExpression(), !19)
    #dbg_value(!29, !32, !DIExpression(), !19)
    #dbg_value(i32 poison, !32, !DIExpression(), !19)
    #dbg_value(i32 1, !33, !DIExpression(), !19)
;; Arglist with an argument, constant, local use before def, poison.
; RECORDS-NEXT: dbg_value(!DIArgList(i32 %p, i32 0, i32 %0, i32 poison), ![[f]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_LLVM_arg, 2, DW_OP_LLVM_arg, 3, DW_OP_plus, DW_OP_minus), ![[dbg]])
    #dbg_value(!DIArgList(i32 %p, i32 0, i32 %0, i32 poison), !33, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_LLVM_arg, 2, DW_OP_LLVM_arg, 3, DW_OP_plus, DW_OP_minus), !19)

;; Check dbg.assign use before def (value, addr and ID). Check expression order too.
; RECORDS: dbg_assign(i32 %0, ![[i:[0-9]+]], !DIExpression(DW_OP_plus_uconst, 0),
; RECORDS-SAME:       ![[ID:[0-9]+]], ptr %a, !DIExpression(DW_OP_plus_uconst, 1), ![[dbg]])
    #dbg_assign(i32 %0, !36, !DIExpression(DW_OP_plus_uconst, 0), !37, ptr %a, !DIExpression(DW_OP_plus_uconst, 1), !19)
  %a = alloca i32, align 4, !DIAssignID !37
; CHECK: %a = alloca i32, align 4, !DIAssignID ![[ID]]
;; Check dbg.declare configurations.
; RECORDS: %a = alloca i32, align 4, !DIAssignID ![[ID]]
; RECORDS-NEXT: dbg_declare(ptr %a, ![[a:[0-9]+]], !DIExpression(), ![[dbg]])
; RECORDS-NEXT: dbg_declare(![[empty:[0-9]+]], ![[b:[0-9]+]], !DIExpression(), ![[dbg]])
; RECORDS-NEXT: dbg_declare(ptr poison, ![[c:[0-9]+]], !DIExpression(), ![[dbg]])
; RECORDS-NEXT: dbg_declare(ptr null, ![[d:[0-9]+]], !DIExpression(), ![[dbg]])
; RECORDS-NEXT: dbg_declare(ptr @g, ![[h:[0-9]+]], !DIExpression(), ![[dbg]])
    #dbg_declare(ptr %a, !17, !DIExpression(), !19)
    #dbg_declare(!29, !28, !DIExpression(), !19)
    #dbg_declare(ptr poison, !30, !DIExpression(), !19)
    #dbg_declare(ptr null, !31, !DIExpression(), !19)
    #dbg_declare(ptr @g, !35, !DIExpression(), !19)
;; Argument value dbg.declare.
; RECORDS: dbg_declare(ptr %storage, ![[g:[0-9]+]], !DIExpression(), ![[dbg]])
    #dbg_declare(ptr %storage, !34, !DIExpression(), !19)
;; Use before def dbg.value.
; RECORDS: dbg_value(i32 %0, ![[e]], !DIExpression(), ![[dbg]])
    #dbg_value(i32 %0, !32, !DIExpression(), !19)
  %0 = load i32, ptr @g, align 4, !dbg !20
;; Non-argument local value dbg.value.
; RECORDS: dbg_value(i32 %0, ![[e]], !DIExpression(), ![[dbg]])
    #dbg_value(i32 %0, !32, !DIExpression(), !19)
  store i32 %0, ptr %a, align 4, !dbg !19
  %1 = load i32, ptr %a, align 4, !dbg !25
; RECORDS: dbg_label(![[label:[0-9]+]], ![[dbg]])
    #dbg_label(!38, !19)
  ret i32 %1, !dbg !27
}

; CHECK-DAG: ![[a]] = !DILocalVariable(name: "a",
; CHECK-DAG: ![[b]] = !DILocalVariable(name: "b",
; CHECK-DAG: ![[c]] = !DILocalVariable(name: "c",
; CHECK-DAG: ![[d]] = !DILocalVariable(name: "d",
; CHECK-DAG: ![[e]] = !DILocalVariable(name: "e",
; CHECK-DAG: ![[f]] = !DILocalVariable(name: "f",
; CHECK-DAG: ![[g]] = !DILocalVariable(name: "g",
; CHECK-DAG: ![[h]] = !DILocalVariable(name: "h",
; CHECK-DAG: ![[i]] = !DILocalVariable(name: "i",
; CHECK-DAG: ![[empty]] = !{}
; CHECK-DAG: ![[label]] = !DILabel

declare void @llvm.dbg.declare(metadata, metadata, metadata)
declare void @llvm.dbg.value(metadata, metadata, metadata)
declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
declare void @llvm.dbg.label(metadata)

!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!6, !7, !8, !9, !10, !11}
!llvm.ident = !{!12}

!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "g", scope: !2, file: !3, line: 1, type: !5, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 19.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None)
!3 = !DIFile(filename: "test.cpp", directory: "/")
!4 = !{!0}
!5 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!6 = !{i32 7, !"Dwarf Version", i32 5}
!7 = !{i32 2, !"Debug Info Version", i32 3}
!8 = !{i32 1, !"wchar_size", i32 4}
!9 = !{i32 8, !"PIC Level", i32 2}
!10 = !{i32 7, !"PIE Level", i32 2}
!11 = !{i32 7, !"uwtable", i32 2}
!12 = !{!"clang version 19.0.0"}
!13 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !3, file: !3, line: 2, type: !14, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !16)
!14 = !DISubroutineType(types: !15)
!15 = !{!5}
!16 = !{!17}
!17 = !DILocalVariable(name: "a", scope: !13, file: !3, line: 3, type: !5)
!18 = !DILocation(line: 3, column: 3, scope: !13)
!19 = !DILocation(line: 3, column: 7, scope: !13)
!20 = !DILocation(line: 3, column: 11, scope: !13)
!25 = !DILocation(line: 4, column: 12, scope: !13)
!26 = !DILocation(line: 5, column: 1, scope: !13)
!27 = !DILocation(line: 4, column: 5, scope: !13)
!28 = !DILocalVariable(name: "b", scope: !13, file: !3, line: 3, type: !5)
!29 = !{}
!30 = !DILocalVariable(name: "c", scope: !13, file: !3, line: 3, type: !5)
!31 = !DILocalVariable(name: "d", scope: !13, file: !3, line: 3, type: !5)
!32 = !DILocalVariable(name: "e", scope: !13, file: !3, line: 3, type: !5)
!33 = !DILocalVariable(name: "f", scope: !13, file: !3, line: 3, type: !5)
!34 = !DILocalVariable(name: "g", scope: !13, file: !3, line: 3, type: !5)
!35 = !DILocalVariable(name: "h", scope: !13, file: !3, line: 3, type: !5)
!36 = !DILocalVariable(name: "i", scope: !13, file: !3, line: 3, type: !5)
!37 = distinct !DIAssignID()
!38 = !DILabel(scope: !13, name: "label", file: !3, line: 1)