1 ; RUN: llc -march=mips -mcpu=mips32r2 -O1 -filetype=obj -relocation-model=pic <%s | \ 2 ; RUN: llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F0 3 ; RUN: llc -march=mips -mcpu=mips32r2 -O1 -filetype=obj -relocation-model=pic <%s | \ 4 ; RUN: llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F1 5 6 ; void foo(int *); 7 ; 8 ; int f0(int a, int b, int c, int d, int e) { 9 ; int x = a + b + c + d + e; 10 ; foo(&x); 11 ; return x; 12 ; } 13 ; 14 ; int f1(int a, int b, int c, int d, int e) { 15 ; int x __attribute__((aligned(16))) = a + b + c + d + e; 16 ; foo(&x); 17 ; return x; 18 ; } 19 20 declare void @llvm.lifetime.start(i64, i8* nocapture) 21 declare void @llvm.lifetime.end(i64, i8* nocapture) 22 23 declare void @foo(i32*) 24 25 ; F0: DW_AT_name {{.*}}"e" 26 ; F0: DW_TAG_variable 27 ; F0-NEXT: DW_AT_location [DW_FORM_sec_offset] ([[LOC:.*]]) 28 ; F0-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000006b] = "x") 29 ; 30 ; x -> DW_OP_reg1(51) 31 ; F0: [[LOC]]: Beginning address offset: 0x0000000000000028 32 ; F0: Ending address offset: 0x0000000000000030 33 ; F0: Location description: 51 34 35 define i32 @f0(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e) !dbg !4 { 36 entry: 37 %x = alloca i32, align 4 38 tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !9, metadata !DIExpression()), !dbg !27 39 tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !10, metadata !DIExpression()), !dbg !28 40 tail call void @llvm.dbg.value(metadata i32 %c, i64 0, metadata !11, metadata !DIExpression()), !dbg !29 41 tail call void @llvm.dbg.value(metadata i32 %d, i64 0, metadata !12, metadata !DIExpression()), !dbg !30 42 tail call void @llvm.dbg.value(metadata i32 %e, i64 0, metadata !13, metadata !DIExpression()), !dbg !31 43 %0 = bitcast i32* %x to i8*, !dbg !32 44 call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !32 45 %add = add nsw i32 %b, %a, !dbg !33 46 %add1 = add nsw i32 %add, %c, !dbg !34 47 %add2 = add nsw i32 %add1, %d, !dbg !35 48 %add3 = add nsw i32 %add2, %e, !dbg !36 49 tail call void @llvm.dbg.value(metadata i32 %add3, i64 0, metadata !14, metadata !DIExpression()), !dbg !37 50 store i32 %add3, i32* %x, align 4, !dbg !37, !tbaa !38 51 tail call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !14, metadata !26), !dbg !37 52 call void @foo(i32* nonnull %x) #4, !dbg !42 53 call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !14, metadata !26), !dbg !37 54 %1 = load i32, i32* %x, align 4, !dbg !43, !tbaa !38 55 call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !44 56 ret i32 %1, !dbg !45 57 } 58 59 60 ; F1: DW_AT_name {{.*}}"x" 61 ; F1: DW_AT_name {{.*}}"e" 62 ; F1: DW_TAG_variable 63 ; F1-NEXT: DW_AT_location [DW_FORM_sec_offset] ([[LOC:.*]]) 64 ; F1-NEXT: DW_AT_name [DW_FORM_strp] ( .debug_str[0x0000006b] = "x") 65 66 ; x -> DW_OP_reg1(51) 67 ; F1: [[LOC]]: Beginning address offset: 0x0000000000000080 68 ; F1: Ending address offset: 0x0000000000000088 69 ; F1: Location description: 51 70 71 define i32 @f1(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e) !dbg !15 { 72 entry: 73 %x = alloca i32, align 16 74 tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !17, metadata !DIExpression()), !dbg !46 75 tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !18, metadata !DIExpression()), !dbg !47 76 tail call void @llvm.dbg.value(metadata i32 %c, i64 0, metadata !19, metadata !DIExpression()), !dbg !48 77 tail call void @llvm.dbg.value(metadata i32 %d, i64 0, metadata !20, metadata !DIExpression()), !dbg !49 78 tail call void @llvm.dbg.value(metadata i32 %e, i64 0, metadata !21, metadata !DIExpression()), !dbg !50 79 %0 = bitcast i32* %x to i8*, !dbg !51 80 call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !51 81 %add = add nsw i32 %b, %a, !dbg !52 82 %add1 = add nsw i32 %add, %c, !dbg !53 83 %add2 = add nsw i32 %add1, %d, !dbg !54 84 %add3 = add nsw i32 %add2, %e, !dbg !55 85 tail call void @llvm.dbg.value(metadata i32 %add3, i64 0, metadata !22, metadata !DIExpression()), !dbg !56 86 store i32 %add3, i32* %x, align 16, !dbg !56, !tbaa !38 87 tail call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !22, metadata !26), !dbg !56 88 call void @foo(i32* nonnull %x) #4, !dbg !57 89 call void @llvm.dbg.value(metadata i32* %x, i64 0, metadata !22, metadata !26), !dbg !56 90 %1 = load i32, i32* %x, align 16, !dbg !58, !tbaa !38 91 call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !59 92 ret i32 %1, !dbg !60 93 } 94 95 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) 96 97 !llvm.dbg.cu = !{!0} 98 !llvm.module.flags = !{!23, !24} 99 !llvm.ident = !{!25} 100 101 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 102 !1 = !DIFile(filename: "test.c", directory: "/home/vk/repos/tmp/dwarf") 103 !2 = !{} 104 !4 = distinct !DISubprogram(name: "f0", scope: !1, file: !1, line: 4, type: !5, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8) 105 !5 = !DISubroutineType(types: !6) 106 !6 = !{!7, !7, !7, !7, !7, !7} 107 !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 108 !8 = !{!9, !10, !11, !12, !13, !14} 109 !9 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 4, type: !7) 110 !10 = !DILocalVariable(name: "b", arg: 2, scope: !4, file: !1, line: 4, type: !7) 111 !11 = !DILocalVariable(name: "c", arg: 3, scope: !4, file: !1, line: 4, type: !7) 112 !12 = !DILocalVariable(name: "d", arg: 4, scope: !4, file: !1, line: 4, type: !7) 113 !13 = !DILocalVariable(name: "e", arg: 5, scope: !4, file: !1, line: 4, type: !7) 114 !14 = !DILocalVariable(name: "x", scope: !4, file: !1, line: 5, type: !7) 115 !15 = distinct !DISubprogram(name: "f1", scope: !1, file: !1, line: 11, type: !5, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !16) 116 !16 = !{!17, !18, !19, !20, !21, !22} 117 !17 = !DILocalVariable(name: "a", arg: 1, scope: !15, file: !1, line: 11, type: !7) 118 !18 = !DILocalVariable(name: "b", arg: 2, scope: !15, file: !1, line: 11, type: !7) 119 !19 = !DILocalVariable(name: "c", arg: 3, scope: !15, file: !1, line: 11, type: !7) 120 !20 = !DILocalVariable(name: "d", arg: 4, scope: !15, file: !1, line: 11, type: !7) 121 !21 = !DILocalVariable(name: "e", arg: 5, scope: !15, file: !1, line: 11, type: !7) 122 !22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 12, type: !7) 123 !23 = !{i32 2, !"Dwarf Version", i32 4} 124 !24 = !{i32 2, !"Debug Info Version", i32 3} 125 !25 = !{!"clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)"} 126 !26 = !DIExpression(DW_OP_deref) 127 !27 = !DILocation(line: 4, column: 12, scope: !4) 128 !28 = !DILocation(line: 4, column: 19, scope: !4) 129 !29 = !DILocation(line: 4, column: 26, scope: !4) 130 !30 = !DILocation(line: 4, column: 33, scope: !4) 131 !31 = !DILocation(line: 4, column: 40, scope: !4) 132 !32 = !DILocation(line: 5, column: 3, scope: !4) 133 !33 = !DILocation(line: 5, column: 13, scope: !4) 134 !34 = !DILocation(line: 5, column: 17, scope: !4) 135 !35 = !DILocation(line: 5, column: 21, scope: !4) 136 !36 = !DILocation(line: 5, column: 25, scope: !4) 137 !37 = !DILocation(line: 5, column: 7, scope: !4) 138 !38 = !{!39, !39, i64 0} 139 !39 = !{!"int", !40, i64 0} 140 !40 = !{!"omnipotent char", !41, i64 0} 141 !41 = !{!"Simple C/C++ TBAA"} 142 !42 = !DILocation(line: 6, column: 3, scope: !4) 143 !43 = !DILocation(line: 7, column: 10, scope: !4) 144 !44 = !DILocation(line: 8, column: 1, scope: !4) 145 !45 = !DILocation(line: 7, column: 3, scope: !4) 146 !46 = !DILocation(line: 11, column: 12, scope: !15) 147 !47 = !DILocation(line: 11, column: 19, scope: !15) 148 !48 = !DILocation(line: 11, column: 26, scope: !15) 149 !49 = !DILocation(line: 11, column: 33, scope: !15) 150 !50 = !DILocation(line: 11, column: 40, scope: !15) 151 !51 = !DILocation(line: 12, column: 3, scope: !15) 152 !52 = !DILocation(line: 12, column: 42, scope: !15) 153 !53 = !DILocation(line: 12, column: 46, scope: !15) 154 !54 = !DILocation(line: 12, column: 50, scope: !15) 155 !55 = !DILocation(line: 12, column: 54, scope: !15) 156 !56 = !DILocation(line: 12, column: 7, scope: !15) 157 !57 = !DILocation(line: 13, column: 3, scope: !15) 158 !58 = !DILocation(line: 14, column: 10, scope: !15) 159 !59 = !DILocation(line: 15, column: 1, scope: !15) 160 !60 = !DILocation(line: 14, column: 3, scope: !15) 161
