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1; RUN: opt -S -passes=globalopt < %s | FileCheck %s2source_filename = "test.c"3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"4target 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 !030 31; Function Attrs: nounwind optsize ssp uwtable32define void @foo(i32 %in) #0 {33entry:34 store i32 %in, ptr @static_struct, align 8, !tbaa !1735 ret void36}37 38; Function Attrs: nounwind optsize ssp uwtable39define void @bar(i32 %in) #0 {40entry:41 %conv = sext i32 %in to i6442 store i64 %conv, ptr getelementptr inbounds (%struct.mystruct, ptr @static_struct, i32 0, i32 1), align 8, !tbaa !2343 ret void44}45 46; Function Attrs: nounwind optsize ssp uwtable47define i32 @main(i32 %argc, ptr %argv) #0 !dbg !24 {48entry:49 call void @llvm.dbg.value(metadata i32 %argc, metadata !31, metadata !33), !dbg !3450 call void @llvm.dbg.value(metadata ptr %argv, metadata !32, metadata !33), !dbg !3551 %0 = load ptr, ptr %argv, align 8, !dbg !36, !tbaa !3752 %arrayidx1 = getelementptr inbounds i8, ptr %0, i64 1, !dbg !3653 %1 = load i8, ptr %arrayidx1, align 1, !dbg !36, !tbaa !3954 %conv = sext i8 %1 to i32, !dbg !3655 call void @foo(i32 %conv) #2, !dbg !4056 %2 = load ptr, ptr %argv, align 8, !dbg !41, !tbaa !3757 %arrayidx3 = getelementptr inbounds i8, ptr %2, i64 1, !dbg !4158 %3 = load i8, ptr %arrayidx3, align 1, !dbg !41, !tbaa !3959 %conv4 = sext i8 %3 to i32, !dbg !4160 call void @bar(i32 %conv4) #2, !dbg !4261 %4 = load i32, ptr @static_struct, align 8, !dbg !43, !tbaa !1762 %conv5 = sext i32 %4 to i64, !dbg !4463 %5 = load i64, ptr getelementptr inbounds (%struct.mystruct, ptr @static_struct, i32 0, i32 1), align 8, !dbg !45, !tbaa !2364 %add = add nsw i64 %conv5, %5, !dbg !4665 %conv6 = trunc i64 %add to i32, !dbg !4466 ret i32 %conv6, !dbg !4767}68 69; Function Attrs: nounwind readnone speculatable70declare void @llvm.dbg.declare(metadata, metadata, metadata) #171 72; Function Attrs: nounwind readnone speculatable73declare void @llvm.dbg.value(metadata, metadata, metadata) #174 75attributes #0 = { nounwind optsize ssp uwtable }76attributes #1 = { nounwind readnone speculatable }77attributes #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