1; RUN: opt %s -passes=declare-to-assign -S | FileCheck %s 2; RUN: opt --try-experimental-debuginfo-iterators %s -passes=declare-to-assign -S | FileCheck %s 3 4;; Check AssignmentTrackingPass ignores a dbg.declare with an empty metadata 5;; location operand. 6 7; CHECK: #dbg_declare 8; CHECK-NOT: #dbg_assign 9 10define dso_local void @_Z3funv() #0 !dbg !10 { 11entry: 12 call void @llvm.dbg.declare(metadata !13, metadata !14, metadata !DIExpression()), !dbg !16 13 ret void 14} 15 16declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 17 18!llvm.dbg.cu = !{!0} 19!llvm.module.flags = !{!2, !3} 20!llvm.ident = !{!9} 21 22!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 17.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) 23!1 = !DIFile(filename: "test.cpp", directory: "/") 24!2 = !{i32 7, !"Dwarf Version", i32 5} 25!3 = !{i32 2, !"Debug Info Version", i32 3} 26!9 = !{!"clang version 17.0.0"} 27!10 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 1, type: !11, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !13) 28!11 = !DISubroutineType(types: !12) 29!12 = !{null} 30!13 = !{} 31!14 = !DILocalVariable(name: "x", scope: !10, file: !1, line: 1, type: !15) 32!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 33!16 = !DILocation(line: 1, column: 18, scope: !10) 34