Index: llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp =================================================================== --- llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -2554,7 +2554,10 @@ continue; } - if (isa(&*PrevInstIt) && &*PrevInstIt != PrevInst) { + // Debug informations don't impact spill cost. + if ((isa(&*PrevInstIt) && + !isa(&*PrevInstIt)) && + &*PrevInstIt != PrevInst) { SmallVector V; for (auto *II : LiveValues) V.push_back(VectorType::get(II->getType(), BundleWidth)); Index: llvm/trunk/test/Transforms/SLPVectorizer/AArch64/spillcost-di.ll =================================================================== --- llvm/trunk/test/Transforms/SLPVectorizer/AArch64/spillcost-di.ll +++ llvm/trunk/test/Transforms/SLPVectorizer/AArch64/spillcost-di.ll @@ -0,0 +1,93 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; Debug informations shouldn't affect spill cost. +; RUN: opt -S -slp-vectorizer %s -o - | FileCheck %s + +target triple = "aarch64" + +%struct.S = type { i64, i64 } + +define void @patatino(i64 %n, i64 %i, %struct.S* %p) !dbg !7 { +; CHECK-LABEL: @patatino( +; CHECK-NEXT: entry: +; CHECK-NEXT: call void @llvm.dbg.value(metadata i64 [[N:%.*]], metadata !18, metadata !DIExpression()), !dbg !23 +; CHECK-NEXT: call void @llvm.dbg.value(metadata i64 [[I:%.*]], metadata !19, metadata !DIExpression()), !dbg !24 +; CHECK-NEXT: call void @llvm.dbg.value(metadata %struct.S* [[P:%.*]], metadata !20, metadata !DIExpression()), !dbg !25 +; CHECK-NEXT: [[X1:%.*]] = getelementptr inbounds [[STRUCT_S:%.*]], %struct.S* [[P]], i64 [[N]], i32 0, !dbg !26 +; CHECK-NEXT: call void @llvm.dbg.value(metadata i64 undef, metadata !21, metadata !DIExpression()), !dbg !27 +; CHECK-NEXT: [[Y3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[P]], i64 [[N]], i32 1, !dbg !28 +; CHECK-NEXT: [[TMP0:%.*]] = bitcast i64* [[X1]] to <2 x i64>*, !dbg !26 +; CHECK-NEXT: [[TMP1:%.*]] = load <2 x i64>, <2 x i64>* [[TMP0]], align 8, !dbg !26, !tbaa !29 +; CHECK-NEXT: call void @llvm.dbg.value(metadata i64 undef, metadata !22, metadata !DIExpression()), !dbg !33 +; CHECK-NEXT: [[X5:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[P]], i64 [[I]], i32 0, !dbg !34 +; CHECK-NEXT: [[Y7:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[P]], i64 [[I]], i32 1, !dbg !35 +; CHECK-NEXT: [[TMP2:%.*]] = bitcast i64* [[X5]] to <2 x i64>*, !dbg !36 +; CHECK-NEXT: store <2 x i64> [[TMP1]], <2 x i64>* [[TMP2]], align 8, !dbg !36, !tbaa !29 +; CHECK-NEXT: ret void, !dbg !37 +; +entry: + call void @llvm.dbg.value(metadata i64 %n, metadata !18, metadata !DIExpression()), !dbg !23 + call void @llvm.dbg.value(metadata i64 %i, metadata !19, metadata !DIExpression()), !dbg !24 + call void @llvm.dbg.value(metadata %struct.S* %p, metadata !20, metadata !DIExpression()), !dbg !25 + %x1 = getelementptr inbounds %struct.S, %struct.S* %p, i64 %n, i32 0, !dbg !26 + %0 = load i64, i64* %x1, align 8, !dbg !26, !tbaa !27 + call void @llvm.dbg.value(metadata i64 %0, metadata !21, metadata !DIExpression()), !dbg !32 + %y3 = getelementptr inbounds %struct.S, %struct.S* %p, i64 %n, i32 1, !dbg !33 + %1 = load i64, i64* %y3, align 8, !dbg !33, !tbaa !34 + call void @llvm.dbg.value(metadata i64 %1, metadata !22, metadata !DIExpression()), !dbg !35 + %x5 = getelementptr inbounds %struct.S, %struct.S* %p, i64 %i, i32 0, !dbg !36 + store i64 %0, i64* %x5, align 8, !dbg !37, !tbaa !27 + %y7 = getelementptr inbounds %struct.S, %struct.S* %p, i64 %i, i32 1, !dbg !38 + store i64 %1, i64* %y7, align 8, !dbg !39, !tbaa !34 + ret void, !dbg !40 +} + +; Function Attrs: nounwind readnone speculatable +declare void @llvm.dbg.value(metadata, metadata, metadata) #1 + +attributes #1 = { nounwind readnone speculatable } + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4, !5} +!llvm.ident = !{!6} + +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0 (trunk 330946) (llvm/trunk 330976)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) +!1 = !DIFile(filename: "slp-reduced.c", directory: "/usr2/gberry/local/loop-align") +!2 = !{} +!3 = !{i32 2, !"Dwarf Version", i32 4} +!4 = !{i32 2, !"Debug Info Version", i32 3} +!5 = !{i32 1, !"wchar_size", i32 4} +!6 = !{!"clang version 7.0.0 (trunk 330946) (llvm/trunk 330976)"} +!7 = distinct !DISubprogram(name: "patatino", scope: !1, file: !1, line: 6, type: !8, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !17) +!8 = !DISubroutineType(types: !9) +!9 = !{null, !10, !10, !11} +!10 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed) +!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) +!12 = !DIDerivedType(tag: DW_TAG_typedef, name: "S", file: !1, line: 4, baseType: !13) +!13 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 1, size: 128, elements: !14) +!14 = !{!15, !16} +!15 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !13, file: !1, line: 2, baseType: !10, size: 64) +!16 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !13, file: !1, line: 3, baseType: !10, size: 64, offset: 64) +!17 = !{!18, !19, !20, !21, !22} +!18 = !DILocalVariable(name: "n", arg: 1, scope: !7, file: !1, line: 6, type: !10) +!19 = !DILocalVariable(name: "i", arg: 2, scope: !7, file: !1, line: 6, type: !10) +!20 = !DILocalVariable(name: "p", arg: 3, scope: !7, file: !1, line: 6, type: !11) +!21 = !DILocalVariable(name: "x", scope: !7, file: !1, line: 7, type: !10) +!22 = !DILocalVariable(name: "y", scope: !7, file: !1, line: 8, type: !10) +!23 = !DILocation(line: 6, column: 15, scope: !7) +!24 = !DILocation(line: 6, column: 23, scope: !7) +!25 = !DILocation(line: 6, column: 29, scope: !7) +!26 = !DILocation(line: 7, column: 19, scope: !7) +!27 = !{!28, !29, i64 0} +!28 = !{!"", !29, i64 0, !29, i64 8} +!29 = !{!"long", !30, i64 0} +!30 = !{!"omnipotent char", !31, i64 0} +!31 = !{!"Simple C/C++ TBAA"} +!32 = !DILocation(line: 7, column: 10, scope: !7) +!33 = !DILocation(line: 8, column: 19, scope: !7) +!34 = !{!28, !29, i64 8} +!35 = !DILocation(line: 8, column: 10, scope: !7) +!36 = !DILocation(line: 9, column: 10, scope: !7) +!37 = !DILocation(line: 9, column: 12, scope: !7) +!38 = !DILocation(line: 10, column: 10, scope: !7) +!39 = !DILocation(line: 10, column: 12, scope: !7) +!40 = !DILocation(line: 11, column: 1, scope: !7)