1; RUN: llc %s -stop-after=finalize-isel -o - | FileCheck %s 2 3 4; RUN: llc --try-experimental-debuginfo-iterators %s -stop-after=finalize-isel -o - | FileCheck %s 5 6;; Hand written. Check AssignmentTrackingAnalysis doesn't try to get the size 7;; of scalable vectors (which causes an assertion failure). 8 9; CHECK: DBG_VALUE %stack.0, $noreg, ![[#]], !DIExpression(DW_OP_deref) 10; CHECK: DBG_VALUE i256 0, $noreg, ![[#]], !DIExpression() 11;; FIXME: We should reinstate (or poison) the variable at the store. See 12;; llvm.org/PR62346. 13 14target triple = "aarch64" 15 16define dso_local void @square(ptr %0) local_unnamed_addr #0 !dbg !9 { 17entry: 18 %1 = alloca <32 x i8>, !DIAssignID !18 19 call void @llvm.dbg.assign(metadata i1 poison, metadata !19, metadata !DIExpression(), metadata !18, metadata ptr %1, metadata !DIExpression()), !dbg !21 20 %2 = load <vscale x 8 x i8>, ptr %0, align 1 21 call void @llvm.dbg.assign(metadata i256 0, metadata !19, metadata !DIExpression(), metadata !22, metadata ptr %1, metadata !DIExpression()), !dbg !21 22 store <vscale x 8 x i8> %2, ptr %1, align 1 23 ret void 24} 25 26declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) 27 28attributes #0 = { vscale_range(1,16) "target-cpu"="generic" "target-features"="+sve" } 29 30!llvm.dbg.cu = !{!0} 31!llvm.module.flags = !{!2, !3, !7} 32!llvm.ident = !{!8} 33 34!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 17.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None) 35!1 = !DIFile(filename: "/app/example.c", directory: "/app") 36!2 = !{i32 7, !"Dwarf Version", i32 4} 37!3 = !{i32 2, !"Debug Info Version", i32 3} 38!7 = !{i32 7, !"debug-info-assignment-tracking", i1 true} 39!8 = !{!"clang version 17.0.0"} 40!9 = distinct !DISubprogram(name: "square", scope: !10, file: !10, line: 1, type: !11, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17) 41!10 = !DIFile(filename: "example.c", directory: "/app") 42!11 = !DISubroutineType(types: !12) 43!12 = !{null, !13, !14, !16} 44!13 = !DIDerivedType(tag: DW_TAG_restrict_type, baseType: !14) 45!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !15, size: 64) 46!15 = !DIBasicType(name: "unsigned char", size: 8, encoding: DW_ATE_unsigned_char) 47!16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 48!17 = !{} 49!18 = distinct !DIAssignID() 50!19 = !DILocalVariable(name: "i", scope: !9, file: !10, line: 2, type: !20) 51!20 = !DIBasicType(name: "cats", size: 256, encoding: DW_ATE_signed) 52!21 = !DILocation(line: 0, scope: !9) 53!22 = distinct !DIAssignID() 54 55