1 ; RUN: opt -sroa < %s -S -o - | FileCheck %s 2 ; 3 ; Test that recursively splitting an alloca updates the debug info correctly. 4 ; CHECK: %[[T:.*]] = load i64, i64* @t, align 8 5 ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], i64 0, metadata ![[Y:.*]], metadata ![[P1:.*]]) 6 ; CHECK: %[[T1:.*]] = load i64, i64* @t, align 8 7 ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], i64 0, metadata ![[Y]], metadata ![[P2:.*]]) 8 ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], i64 0, metadata ![[R:.*]], metadata ![[P3:.*]]) 9 ; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], i64 0, metadata ![[R]], metadata ![[P4:.*]]) 10 ; CHECK: ![[P1]] = !DIExpression(DW_OP_bit_piece, 0, 64) 11 ; CHECK: ![[P2]] = !DIExpression(DW_OP_bit_piece, 64, 64) 12 ; CHECK: ![[P3]] = !DIExpression(DW_OP_bit_piece, 192, 64) 13 ; CHECK: ![[P4]] = !DIExpression(DW_OP_bit_piece, 256, 64) 14 ; 15 ; struct p { 16 ; __SIZE_TYPE__ s; 17 ; __SIZE_TYPE__ t; 18 ; }; 19 ; 20 ; struct r { 21 ; int i; 22 ; struct p x; 23 ; struct p y; 24 ; }; 25 ; 26 ; extern int call_me(struct r); 27 ; extern int maybe(); 28 ; extern __SIZE_TYPE__ t; 29 ; 30 ; int test() { 31 ; if (maybe()) 32 ; return 0; 33 ; struct p y = {t, t}; 34 ; struct r r = {.y = y}; 35 ; return call_me(r); 36 ; } 37 38 ; ModuleID = 'pr22393.cc' 39 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 40 target triple = "x86_64-apple-darwin" 41 42 %struct.p = type { i64, i64 } 43 %struct.r = type { i32, %struct.p, %struct.p } 44 45 @t = external global i64 46 47 ; Function Attrs: nounwind 48 define i32 @_Z4testv() #0 !dbg !17 { 49 entry: 50 %retval = alloca i32, align 4 51 %y = alloca %struct.p, align 8 52 %r = alloca %struct.r, align 8 53 %agg.tmp = alloca %struct.r, align 8 54 %call = call i32 @_Z5maybev(), !dbg !24 55 %tobool = icmp ne i32 %call, 0, !dbg !24 56 br i1 %tobool, label %if.then, label %if.end, !dbg !26 57 58 if.then: ; preds = %entry 59 store i32 0, i32* %retval, !dbg !27 60 br label %return, !dbg !27 61 62 if.end: ; preds = %entry 63 call void @llvm.dbg.declare(metadata %struct.p* %y, metadata !28, metadata !29), !dbg !30 64 %s = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 0, !dbg !30 65 %0 = load i64, i64* @t, align 8, !dbg !30 66 store i64 %0, i64* %s, align 8, !dbg !30 67 %t = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 1, !dbg !30 68 %1 = load i64, i64* @t, align 8, !dbg !30 69 store i64 %1, i64* %t, align 8, !dbg !30 70 call void @llvm.dbg.declare(metadata %struct.r* %r, metadata !31, metadata !29), !dbg !32 71 %i = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 0, !dbg !32 72 store i32 0, i32* %i, align 4, !dbg !32 73 %x = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 1, !dbg !32 74 %s1 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 0, !dbg !32 75 store i64 0, i64* %s1, align 8, !dbg !32 76 %t2 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 1, !dbg !32 77 store i64 0, i64* %t2, align 8, !dbg !32 78 %y3 = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 2, !dbg !32 79 %2 = bitcast %struct.p* %y3 to i8*, !dbg !32 80 %3 = bitcast %struct.p* %y to i8*, !dbg !32 81 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 16, i32 8, i1 false), !dbg !32 82 %4 = bitcast %struct.r* %agg.tmp to i8*, !dbg !33 83 %5 = bitcast %struct.r* %r to i8*, !dbg !33 84 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* %5, i64 40, i32 8, i1 false), !dbg !33 85 %call4 = call i32 @_Z7call_me1r(%struct.r* byval align 8 %agg.tmp), !dbg !33 86 store i32 %call4, i32* %retval, !dbg !33 87 br label %return, !dbg !33 88 89 return: ; preds = %if.end, %if.then 90 %6 = load i32, i32* %retval, !dbg !34 91 ret i32 %6, !dbg !34 92 } 93 94 declare i32 @_Z5maybev() 95 96 ; Function Attrs: nounwind readnone 97 declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 98 99 ; Function Attrs: nounwind 100 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #3 101 102 declare i32 @_Z7call_me1r(%struct.r* byval align 8) 103 104 attributes #0 = { nounwind } 105 attributes #2 = { nounwind readnone } 106 attributes #3 = { nounwind } 107 108 !llvm.dbg.cu = !{!0} 109 !llvm.module.flags = !{!21, !22} 110 !llvm.ident = !{!23} 111 112 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !16, globals: !2, imports: !2) 113 !1 = !DIFile(filename: "<stdin>", directory: "") 114 !2 = !{} 115 !3 = !{!4, !10} 116 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "p", line: 3, size: 128, align: 64, file: !5, elements: !6, identifier: "_ZTS1p") 117 !5 = !DIFile(filename: "pr22393.cc", directory: "") 118 !6 = !{!7, !9} 119 !7 = !DIDerivedType(tag: DW_TAG_member, name: "s", line: 4, size: 64, align: 64, file: !5, scope: !"_ZTS1p", baseType: !8) 120 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned) 121 !9 = !DIDerivedType(tag: DW_TAG_member, name: "t", line: 5, size: 64, align: 64, offset: 64, file: !5, scope: !"_ZTS1p", baseType: !8) 122 !10 = !DICompositeType(tag: DW_TAG_structure_type, name: "r", line: 8, size: 320, align: 64, file: !5, elements: !11, identifier: "_ZTS1r") 123 !11 = !{!12, !14, !15} 124 !12 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 9, size: 32, align: 32, file: !5, scope: !"_ZTS1r", baseType: !13) 125 !13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 126 !14 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 10, size: 128, align: 64, offset: 64, file: !5, scope: !"_ZTS1r", baseType: !"_ZTS1p") 127 !15 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 11, size: 128, align: 64, offset: 192, file: !5, scope: !"_ZTS1r", baseType: !"_ZTS1p") 128 !16 = !{!17} 129 !17 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", line: 18, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 18, file: !5, scope: !18, type: !19, variables: !2) 130 !18 = !DIFile(filename: "pr22393.cc", directory: "") 131 !19 = !DISubroutineType(types: !20) 132 !20 = !{!13} 133 !21 = !{i32 2, !"Dwarf Version", i32 4} 134 !22 = !{i32 2, !"Debug Info Version", i32 3} 135 !23 = !{!"clang version 3.7.0 "} 136 !24 = !DILocation(line: 19, scope: !25) 137 !25 = distinct !DILexicalBlock(line: 19, column: 0, file: !5, scope: !17) 138 !26 = !DILocation(line: 19, scope: !17) 139 !27 = !DILocation(line: 20, scope: !25) 140 !28 = !DILocalVariable(name: "y", line: 21, scope: !17, file: !18, type: !"_ZTS1p") 141 !29 = !DIExpression() 142 !30 = !DILocation(line: 21, scope: !17) 143 !31 = !DILocalVariable(name: "r", line: 22, scope: !17, file: !18, type: !"_ZTS1r") 144 !32 = !DILocation(line: 22, scope: !17) 145 !33 = !DILocation(line: 23, scope: !17) 146 !34 = !DILocation(line: 24, scope: !17) 147
