1; RUN: opt %s -passes=adce -S -o - \ 2; RUN: | FileCheck %s 3; RUN: opt --try-experimental-debuginfo-iterators %s -passes=adce -S -o - \ 4; RUN: | FileCheck %s 5 6;; $ cat test.c 7;; void fun(int local) {} 8;; 9;; $ clang test.c -g -O1 -Xclang -disable-llvm-passes | opt -S -passes=declare-to-assign 10 11;; Check that the dbg.assign intrinsics that are considered "out of scope" (dbg 12;; attachments have been deleted) but still linked to an instruction are not 13;; deleted by ADCE. 14 15; CHECK: #dbg_assign 16; CHECK: #dbg_assign 17 18define dso_local void @fun(i32 noundef %local) #0 !dbg !7 { 19entry: 20 %local.addr = alloca i32, align 4, !DIAssignID !13 21 call void @llvm.dbg.assign(metadata i1 undef, metadata !12, metadata !DIExpression(), metadata !13, metadata ptr %local.addr, metadata !DIExpression()), !dbg !14 22 store i32 %local, ptr %local.addr, align 4, !DIAssignID !19 23 call void @llvm.dbg.assign(metadata i32 %local, metadata !12, metadata !DIExpression(), metadata !19, metadata ptr %local.addr, metadata !DIExpression()), !dbg !14 24 ret void 25} 26 27declare void @llvm.dbg.declare(metadata, metadata, metadata) 28declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) 29 30!llvm.dbg.cu = !{!0} 31!llvm.module.flags = !{!2, !3, !4, !5, !1000} 32!llvm.ident = !{!6} 33 34!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) 35!1 = !DIFile(filename: "test.c", directory: "/") 36!2 = !{i32 7, !"Dwarf Version", i32 5} 37!3 = !{i32 2, !"Debug Info Version", i32 3} 38!4 = !{i32 1, !"wchar_size", i32 4} 39!5 = !{i32 7, !"uwtable", i32 1} 40!6 = !{!"clang version 14.0.0"} 41!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) 42!8 = !DISubroutineType(types: !9) 43!9 = !{null, !10} 44!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 45!11 = !{!12} 46!12 = !DILocalVariable(name: "local", arg: 1, scope: !7, file: !1, line: 1, type: !10) 47!13 = distinct !DIAssignID() 48!14 = !DILocation(line: 0, scope: !7) 49!19 = distinct !DIAssignID() 50!20 = !DILocation(line: 1, column: 22, scope: !7) 51!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 52