; RUN: opt %s -passes=adce -S -o - \ ; RUN: | FileCheck %s ; RUN: opt --try-experimental-debuginfo-iterators %s -passes=adce -S -o - \ ; RUN: | FileCheck %s ;; $ cat test.c ;; void fun(int local) {} ;; ;; $ clang test.c -g -O1 -Xclang -disable-llvm-passes | opt -S -passes=declare-to-assign ;; Check that the dbg.assign intrinsics that are considered "out of scope" (dbg ;; attachments have been deleted) but still linked to an instruction are not ;; deleted by ADCE. ; CHECK: llvm.dbg.assign ; CHECK: llvm.dbg.assign define dso_local void @fun(i32 noundef %local) #0 !dbg !7 { entry: %local.addr = alloca i32, align 4, !DIAssignID !13 call void @llvm.dbg.assign(metadata i1 undef, metadata !12, metadata !DIExpression(), metadata !13, metadata ptr %local.addr, metadata !DIExpression()), !dbg !14 store i32 %local, ptr %local.addr, align 4, !DIAssignID !19 call void @llvm.dbg.assign(metadata i32 %local, metadata !12, metadata !DIExpression(), metadata !19, metadata ptr %local.addr, metadata !DIExpression()), !dbg !14 ret void } declare void @llvm.dbg.declare(metadata, metadata, metadata) declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!2, !3, !4, !5, !1000} !llvm.ident = !{!6} !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 14.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) !1 = !DIFile(filename: "test.c", directory: "/") !2 = !{i32 7, !"Dwarf Version", i32 5} !3 = !{i32 2, !"Debug Info Version", i32 3} !4 = !{i32 1, !"wchar_size", i32 4} !5 = !{i32 7, !"uwtable", i32 1} !6 = !{!"clang version 14.0.0"} !7 = distinct !DISubprogram(name: "fun", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) !8 = !DISubroutineType(types: !9) !9 = !{null, !10} !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !11 = !{!12} !12 = !DILocalVariable(name: "local", arg: 1, scope: !7, file: !1, line: 1, type: !10) !13 = distinct !DIAssignID() !14 = !DILocation(line: 0, scope: !7) !19 = distinct !DIAssignID() !20 = !DILocation(line: 1, column: 22, scope: !7) !1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}