1 ; RUN: opt -S -globalopt < %s | FileCheck %s 2 source_filename = "test.c" 3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4 target triple = "x86_64-apple-macosx10.12.0" 5 6 %struct.mystruct = type { i32, i64 } 7 ; Generated at -Os from: 8 ; 9 ; static struct mystruct { 10 ; int a; 11 ; long long int b; 12 ; } static_struct; 13 ; void __attribute__((nodebug)) foo(int in) { static_struct.a = in; } 14 ; void __attribute__((nodebug)) bar(int in) { static_struct.b = in; } 15 ; int main(int argc, char **argv) 16 ; { 17 ; foo(argv[0][1]); 18 ; bar(argv[0][1]); 19 ; return static_struct.a + static_struct.b; 20 ; } 21 22 ; CHECK: @static_struct.0 = internal unnamed_addr global i32 0, align 8, !dbg ![[EL0:.*]] 23 ; CHECK: @static_struct.1 = internal unnamed_addr global i64 0, align 8, !dbg ![[EL1:.*]] 24 25 ; CHECK: ![[EL0]] = !DIGlobalVariableExpression(var: ![[VAR:.*]], expr: !DIExpression(DW_OP_LLVM_fragment, 0, 32)) 26 ; CHECK: ![[VAR]] = distinct !DIGlobalVariable(name: "static_struct" 27 ; CHECK: ![[EL1]] = !DIGlobalVariableExpression(var: ![[VAR]], expr: !DIExpression(DW_OP_LLVM_fragment, 64, 64)) 28 29 @static_struct = internal global %struct.mystruct zeroinitializer, align 8, !dbg !0 30 31 ; Function Attrs: nounwind optsize ssp uwtable 32 define void @foo(i32 %in) #0 { 33 entry: 34 store i32 %in, i32* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 0), align 8, !tbaa !17 35 ret void 36 } 37 38 ; Function Attrs: nounwind optsize ssp uwtable 39 define void @bar(i32 %in) #0 { 40 entry: 41 %conv = sext i32 %in to i64 42 store i64 %conv, i64* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 1), align 8, !tbaa !23 43 ret void 44 } 45 46 ; Function Attrs: nounwind optsize ssp uwtable 47 define i32 @main(i32 %argc, i8** %argv) #0 !dbg !24 { 48 entry: 49 call void @llvm.dbg.value(metadata i32 %argc, metadata !31, metadata !33), !dbg !34 50 call void @llvm.dbg.value(metadata i8** %argv, metadata !32, metadata !33), !dbg !35 51 %0 = load i8*, i8** %argv, align 8, !dbg !36, !tbaa !37 52 %arrayidx1 = getelementptr inbounds i8, i8* %0, i64 1, !dbg !36 53 %1 = load i8, i8* %arrayidx1, align 1, !dbg !36, !tbaa !39 54 %conv = sext i8 %1 to i32, !dbg !36 55 call void @foo(i32 %conv) #2, !dbg !40 56 %2 = load i8*, i8** %argv, align 8, !dbg !41, !tbaa !37 57 %arrayidx3 = getelementptr inbounds i8, i8* %2, i64 1, !dbg !41 58 %3 = load i8, i8* %arrayidx3, align 1, !dbg !41, !tbaa !39 59 %conv4 = sext i8 %3 to i32, !dbg !41 60 call void @bar(i32 %conv4) #2, !dbg !42 61 %4 = load i32, i32* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 0), align 8, !dbg !43, !tbaa !17 62 %conv5 = sext i32 %4 to i64, !dbg !44 63 %5 = load i64, i64* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 1), align 8, !dbg !45, !tbaa !23 64 %add = add nsw i64 %conv5, %5, !dbg !46 65 %conv6 = trunc i64 %add to i32, !dbg !44 66 ret i32 %conv6, !dbg !47 67 } 68 69 ; Function Attrs: nounwind readnone speculatable 70 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 71 72 ; Function Attrs: nounwind readnone speculatable 73 declare void @llvm.dbg.value(metadata, metadata, metadata) #1 74 75 attributes #0 = { nounwind optsize ssp uwtable } 76 attributes #1 = { nounwind readnone speculatable } 77 attributes #2 = { optsize } 78 79 !llvm.dbg.cu = !{!2} 80 !llvm.module.flags = !{!12, !13, !14, !15} 81 !llvm.ident = !{!16} 82 83 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 84 !1 = distinct !DIGlobalVariable(name: "static_struct", scope: !2, file: !3, line: 4, type: !6, isLocal: true, isDefinition: true) 85 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 6.0.0 (trunk 309852) (llvm/trunk 309850)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) 86 !3 = !DIFile(filename: "test.c", directory: "/") 87 !4 = !{} 88 !5 = !{!0} 89 !6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "mystruct", file: !3, line: 1, size: 128, elements: !7) 90 !7 = !{!8, !10} 91 !8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !3, line: 2, baseType: !9, size: 32) 92 !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 93 !10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !3, line: 3, baseType: !11, size: 64, offset: 64) 94 !11 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed) 95 !12 = !{i32 2, !"Dwarf Version", i32 4} 96 !13 = !{i32 2, !"Debug Info Version", i32 3} 97 !14 = !{i32 1, !"wchar_size", i32 4} 98 !15 = !{i32 7, !"PIC Level", i32 2} 99 !16 = !{!"clang version 6.0.0 (trunk 309852) (llvm/trunk 309850)"} 100 !17 = !{!18, !19, i64 0} 101 !18 = !{!"mystruct", !19, i64 0, !22, i64 8} 102 !19 = !{!"int", !20, i64 0} 103 !20 = !{!"omnipotent char", !21, i64 0} 104 !21 = !{!"Simple C/C++ TBAA"} 105 !22 = !{!"long long", !20, i64 0} 106 !23 = !{!18, !22, i64 8} 107 !24 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 7, type: !25, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !30) 108 !25 = !DISubroutineType(types: !26) 109 !26 = !{!9, !9, !27} 110 !27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !28, size: 64) 111 !28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !29, size: 64) 112 !29 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 113 !30 = !{!31, !32} 114 !31 = !DILocalVariable(name: "argc", arg: 1, scope: !24, file: !3, line: 7, type: !9) 115 !32 = !DILocalVariable(name: "argv", arg: 2, scope: !24, file: !3, line: 7, type: !27) 116 !33 = !DIExpression() 117 !34 = !DILocation(line: 7, column: 14, scope: !24) 118 !35 = !DILocation(line: 7, column: 27, scope: !24) 119 !36 = !DILocation(line: 9, column: 9, scope: !24) 120 !37 = !{!38, !38, i64 0} 121 !38 = !{!"any pointer", !20, i64 0} 122 !39 = !{!20, !20, i64 0} 123 !40 = !DILocation(line: 9, column: 5, scope: !24) 124 !41 = !DILocation(line: 10, column: 9, scope: !24) 125 !42 = !DILocation(line: 10, column: 5, scope: !24) 126 !43 = !DILocation(line: 11, column: 26, scope: !24) 127 !44 = !DILocation(line: 11, column: 12, scope: !24) 128 !45 = !DILocation(line: 11, column: 44, scope: !24) 129 !46 = !DILocation(line: 11, column: 28, scope: !24) 130 !47 = !DILocation(line: 11, column: 5, scope: !24) 131
