[PATCH] D133926: [DebugInfo] Allow non-stack_value variadic expressions and use in DBG_INSTR_REF

[Felipe de Azevedo Piovezan via Phabricator via llvm-commits]

fdeazeve added a comment.

Could you give this a try? It repros for me with a `llc test.ll`.

  target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  target triple = "x86_64-apple-macosx12.1.0"
  
  declare void @llvm.dbg.value(metadata, metadata, metadata) #0
  
  define swifttailcc void @"blah"(ptr swiftasync %0) !dbg !26 {
    %use = getelementptr i8, ptr %0, i64 9
    call void @llvm.dbg.value(metadata ptr %0, metadata !30, metadata !DIExpression(DW_OP_LLVM_entry_value, 1, DW_OP_plus_uconst, 16, DW_OP_plus_uconst, 16, DW_OP_deref, DW_OP_deref)), !dbg !34
    %use1 = load i32, ptr null, !dbg !45
    %use2 = sext i32 %use1 to i64
    %use3 = getelementptr i8, ptr null, i64 %use2
    store ptr %use3, ptr %0
    ret void
  }
  
  attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
  
  !llvm.module.flags = !{!0}
  !llvm.dbg.cu = !{!1}
  
  !0 = !{i32 2, !"Debug Info Version", i32 3}
  !1 = distinct !DICompileUnit(language: DW_LANG_Swift, file: !7, producer: "blah", isOptimized: true, flags: "blah", runtimeVersion: 5, emissionKind: FullDebug, globals: !3, imports: !10, sysroot: "blah", sdk: "blah")
  !3 = !{!4, !11}
  !4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
  !5 = distinct !DIGlobalVariable(name: "blah", linkageName: "blah", scope: !6, file: !7, line: 49, type: !8, isLocal: true, isDefinition: true)
  !6 = !DIModule(scope: null, name: "blah", includePath: "blah")
  !7 = !DIFile(filename: "blah", directory: "blah")
  !8 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !9)
  !9 = !DICompositeType(tag: DW_TAG_structure_type, name: "blah", scope: !6, file: !7, size: 64, elements: !10, runtimeLang: DW_LANG_Swift, identifier: "blah")
  !10 = !{}
  !11 = !DIGlobalVariableExpression(var: !12, expr: !DIExpression())
  !12 = distinct !DIGlobalVariable(name: "blah", linkageName: "blah", scope: !6, file: !7, line: 44, type: !14, isLocal: false, isDefinition: true)
  !14 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !15)
  !15 = !DICompositeType(tag: DW_TAG_structure_type, name: "blah", scope: !17, file: !7, size: 64, elements: !10, runtimeLang: DW_LANG_Swift, identifier: "blah")
  !17 = !DIModule(scope: null, name: "blah", configMacros: "blah", includePath: "blah")
  !26 = distinct !DISubprogram(name: "blah", linkageName: "blah", scope: !28, file: !7, line: 115, type: !29, scopeLine: 117, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !1, retainedNodes: !10, thrownTypes: !10)
  !28 = !DICompositeType(tag: DW_TAG_structure_type, name: "blah", scope: !6, file: !7, elements: !10, runtimeLang: DW_LANG_Swift, identifier: "blah")
  !29 = !DISubroutineType(types: !10)
  !30 = !DILocalVariable(name: "blah", arg: 1, scope: !31, file: !7, line: 95, type: !33, flags: DIFlagArtificial)
  !31 = distinct !DISubprogram(name: "blah", linkageName: "blah", scope: !28, file: !7, line: 95, type: !32, scopeLine: 95, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !1, retainedNodes: !10)
  !32 = distinct !DISubroutineType(types: !10)
  !33 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !28)
  !34 = !DILocation(line: 95, column: 9, scope: !31, inlinedAt: !35)
  !35 = distinct !DILocation(line: 0, scope: !36, inlinedAt: !38)
  !36 = distinct !DISubprogram(name: "blah", linkageName: "blah", scope: !28, file: !7, type: !32, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !1)
  !38 = distinct !DILocation(line: 121, column: 36, scope: !44)
  !44 = distinct !DILexicalBlock(scope: !26, file: !7, line: 116, column: 7)
  !45 = !DILocation(line: 0, scope: !46, inlinedAt: !35)
  !46 = !DILexicalBlockFile(scope: !31, file: !7, discriminator: 0)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133926/new/

https://reviews.llvm.org/D133926