; RUN: opt < %s -S -mldst-motion -o - | FileCheck %s ; RUN: opt < %s -S -strip-debug -mldst-motion -o - | FileCheck %s ; Verify that the amount of stores that are sunk is invariant regarding debug ; info. This used to fail due to including dbg.value instructions when ; calculating the size of a basic block for the "MagicCompileTimeControl" ; check in MergedLoadStoreMotion::mergeStores. ; CHECK-LABEL: return: ; CHECK-NEXT: %.sink = phi i16 [ 5, %if.end ], [ 6, %if.then ] ; CHECK-NEXT: %0 = getelementptr inbounds %struct.S0, %struct.S0* %agg.result, i16 0, i32 0 ; CHECK-NEXT: store i16 %.sink, i16* %0 ; CHECK-NEXT: %1 = getelementptr inbounds %struct.S0, %struct.S0* %agg.result, i16 0, i32 1 ; CHECK-NEXT: store i16 0, i16* %1 ; CHECK-NEXT: ret void %struct.S0 = type { i16, i16 } @g_173 = dso_local local_unnamed_addr global i16 0, !dbg !0 ; Function Attrs: noinline norecurse nounwind define dso_local void @func_34(%struct.S0* noalias sret(%struct.S0) %agg.result) local_unnamed_addr #0 !dbg !11 { entry: br i1 undef, label %if.end, label %if.then, !dbg !18 if.then: ; preds = %entry call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 call void @llvm.dbg.value(metadata i16 5, metadata !19, metadata !DIExpression()), !dbg !22 %l_303.sroa.0.0..sroa_idx = getelementptr inbounds %struct.S0, %struct.S0* %agg.result, i16 0, i32 0, !dbg !23 store i16 6, i16* %l_303.sroa.0.0..sroa_idx, !dbg !23 %l_303.sroa.2.0..sroa_idx1 = getelementptr inbounds %struct.S0, %struct.S0* %agg.result, i16 0, i32 1, !dbg !23 store i16 0, i16* %l_303.sroa.2.0..sroa_idx1, !dbg !23 br label %return, !dbg !24 if.end: ; preds = %entry %f037 = getelementptr inbounds %struct.S0, %struct.S0* %agg.result, i16 0, i32 0, !dbg !25 store i16 5, i16* %f037, !dbg !25 %f138 = getelementptr inbounds %struct.S0, %struct.S0* %agg.result, i16 0, i32 1, !dbg !25 store i16 0, i16* %f138, !dbg !25 store i16 0, i16* @g_173, !dbg !27 br label %return, !dbg !28 return: ; preds = %if.end, %if.then ret void, !dbg !29 } ; Function Attrs: nounwind readnone speculatable declare void @llvm.dbg.value(metadata, metadata, metadata) #1 attributes #0 = { noinline norecurse nounwind } attributes #1 = { nounwind readnone speculatable } !llvm.dbg.cu = !{!2} !llvm.module.flags = !{!7, !8, !9} !llvm.ident = !{!10} !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = distinct !DIGlobalVariable(name: "g_173", scope: !2, file: !3, line: 7, type: !6, isLocal: false, isDefinition: true) !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0 (x)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) !3 = !DIFile(filename: "csmith11794002068761.c", directory: "") !4 = !{} !5 = !{!0} !6 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed) !7 = !{i32 2, !"Dwarf Version", i32 4} !8 = !{i32 2, !"Debug Info Version", i32 3} !9 = !{i32 1, !"wchar_size", i32 1} !10 = !{!"clang version 7.0.0 (x)"} !11 = distinct !DISubprogram(name: "func_34", scope: !3, file: !3, line: 16, type: !12, isLocal: false, isDefinition: true, scopeLine: 16, isOptimized: false, unit: !2, retainedNodes: !4) !12 = !DISubroutineType(types: !13) !13 = !{!14} !14 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S0", file: !3, line: 2, size: 32, elements: !15) !15 = !{!16, !17} !16 = !DIDerivedType(tag: DW_TAG_member, name: "f0", scope: !14, file: !3, line: 3, baseType: !6, size: 16) !17 = !DIDerivedType(tag: DW_TAG_member, name: "f1", scope: !14, file: !3, line: 4, baseType: !6, size: 16, offset: 16) !18 = !DILocation(line: 18, column: 7, scope: !11) !19 = !DILocalVariable(name: "left", scope: !20, file: !3, line: 23, type: !6) !20 = distinct !DILexicalBlock(scope: !21, file: !3, line: 18, column: 14) !21 = distinct !DILexicalBlock(scope: !11, file: !3, line: 18, column: 7) !22 = !DILocation(line: 23, column: 9, scope: !20) !23 = !DILocation(line: 26, column: 12, scope: !20) !24 = !DILocation(line: 26, column: 5, scope: !20) !25 = !DILocation(line: 29, column: 23, scope: !26) !26 = distinct !DILexicalBlock(scope: !11, file: !3, line: 28, column: 3) !27 = !DILocation(line: 30, column: 11, scope: !26) !28 = !DILocation(line: 31, column: 5, scope: !26) !29 = !DILocation(line: 33, column: 1, scope: !11)