1; RUN: opt -S -passes=globalopt < %s | FileCheck %s 2source_filename = "array.c" 3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-unknown-linux-gnu" 5 6%struct.mystruct = type { i32, i64 } 7 8; Generated from: 9; 10; static long double array[2]; 11; void __attribute__((nodebug)) foo(int in) { array[0] = in; } 12; void __attribute__((nodebug)) bar(int in) { array[1] = in; } 13; int main(int argc, char **argv) 14; { 15; foo(argv[0][1]); 16; bar(argv[0][1]); 17; return (array[0] + array[1]) > 0; 18; } 19; 20; using clang -O0 -g2 -S -emit-llvm 21 22@array = internal global [2 x x86_fp80] zeroinitializer, align 16, !dbg !0 23 24; CHECK: @array.0 = internal unnamed_addr global x86_fp80 0xK00000000000000000000, align 16, !dbg ![[EL0:.*]] 25; CHECK: @array.1 = internal unnamed_addr global x86_fp80 0xK00000000000000000000, align 16, !dbg ![[EL1:.*]] 26; 27; CHECK: ![[EL0]] = !DIGlobalVariableExpression(var: ![[VAR:.*]], expr: !DIExpression(DW_OP_LLVM_fragment, 0, 128)) 28; CHECK: ![[VAR]] = distinct !DIGlobalVariable(name: "array" 29; CHECK: ![[EL1]] = !DIGlobalVariableExpression(var: ![[VAR]], expr: !DIExpression(DW_OP_LLVM_fragment, 128, 128)) 30 31; Function Attrs: noinline nounwind optnone uwtable 32define void @foo(i32 %in) #0 { 33entry: 34 %in.addr = alloca i32, align 4 35 store i32 %in, ptr %in.addr, align 4 36 %0 = load i32, ptr %in.addr, align 4 37 %conv = sitofp i32 %0 to x86_fp80 38 store x86_fp80 %conv, ptr @array, align 16 39 ret void 40} 41 42; Function Attrs: noinline nounwind optnone uwtable 43define void @bar(i32 %in) #0 { 44entry: 45 %in.addr = alloca i32, align 4 46 store i32 %in, ptr %in.addr, align 4 47 %0 = load i32, ptr %in.addr, align 4 48 %conv = sitofp i32 %0 to x86_fp80 49 store x86_fp80 %conv, ptr getelementptr inbounds ([2 x x86_fp80], ptr @array, i64 0, i64 1), align 16 50 ret void 51} 52 53; Function Attrs: noinline nounwind optnone uwtable 54define i32 @main(i32 %argc, ptr %argv) #0 !dbg !14 { 55entry: 56 %retval = alloca i32, align 4 57 %argc.addr = alloca i32, align 4 58 %argv.addr = alloca ptr, align 8 59 store i32 0, ptr %retval, align 4 60 store i32 %argc, ptr %argc.addr, align 4 61 call void @llvm.dbg.declare(metadata ptr %argc.addr, metadata !21, metadata !DIExpression()), !dbg !22 62 store ptr %argv, ptr %argv.addr, align 8 63 call void @llvm.dbg.declare(metadata ptr %argv.addr, metadata !23, metadata !DIExpression()), !dbg !24 64 %0 = load ptr, ptr %argv.addr, align 8, !dbg !25 65 %1 = load ptr, ptr %0, align 8, !dbg !25 66 %arrayidx1 = getelementptr inbounds i8, ptr %1, i64 1, !dbg !25 67 %2 = load i8, ptr %arrayidx1, align 1, !dbg !25 68 %conv = sext i8 %2 to i32, !dbg !25 69 call void @foo(i32 %conv), !dbg !26 70 %3 = load ptr, ptr %argv.addr, align 8, !dbg !27 71 %4 = load ptr, ptr %3, align 8, !dbg !27 72 %arrayidx3 = getelementptr inbounds i8, ptr %4, i64 1, !dbg !27 73 %5 = load i8, ptr %arrayidx3, align 1, !dbg !27 74 %conv4 = sext i8 %5 to i32, !dbg !27 75 call void @bar(i32 %conv4), !dbg !28 76 %6 = load x86_fp80, ptr @array, align 16, !dbg !29 77 %7 = load x86_fp80, ptr getelementptr inbounds ([2 x x86_fp80], ptr @array, i64 0, i64 1), align 16, !dbg !30 78 %add = fadd x86_fp80 %6, %7, !dbg !31 79 %cmp = fcmp ogt x86_fp80 %add, 0xK00000000000000000000, !dbg !32 80 %conv5 = zext i1 %cmp to i32, !dbg !32 81 ret i32 %conv5, !dbg !33 82} 83 84; Function Attrs: nounwind readnone speculatable 85declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 86 87attributes #0 = { noinline nounwind optnone uwtable } 88attributes #1 = { nounwind readnone speculatable } 89 90!llvm.dbg.cu = !{!2} 91!llvm.module.flags = !{!10, !11, !12} 92!llvm.ident = !{!13} 93 94!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 95!1 = distinct !DIGlobalVariable(name: "array", scope: !2, file: !3, line: 1, type: !6, isLocal: true, isDefinition: true) 96!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) 97!3 = !DIFile(filename: "array.c", directory: "/") 98!4 = !{} 99!5 = !{!0} 100!6 = !DICompositeType(tag: DW_TAG_array_type, baseType: !7, size: 256, elements: !8) 101!7 = !DIBasicType(name: "long double", size: 128, encoding: DW_ATE_float) 102!8 = !{!9} 103!9 = !DISubrange(count: 2) 104!10 = !{i32 2, !"Dwarf Version", i32 4} 105!11 = !{i32 2, !"Debug Info Version", i32 3} 106!12 = !{i32 1, !"wchar_size", i32 4} 107!13 = !{!"clang version 7.0.0"} 108!14 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 4, type: !15, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4) 109!15 = !DISubroutineType(types: !16) 110!16 = !{!17, !17, !18} 111!17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 112!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !19, size: 64) 113!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64) 114!20 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 115!21 = !DILocalVariable(name: "argc", arg: 1, scope: !14, file: !3, line: 4, type: !17) 116!22 = !DILocation(line: 4, column: 14, scope: !14) 117!23 = !DILocalVariable(name: "argv", arg: 2, scope: !14, file: !3, line: 4, type: !18) 118!24 = !DILocation(line: 4, column: 27, scope: !14) 119!25 = !DILocation(line: 6, column: 7, scope: !14) 120!26 = !DILocation(line: 6, column: 3, scope: !14) 121!27 = !DILocation(line: 7, column: 7, scope: !14) 122!28 = !DILocation(line: 7, column: 3, scope: !14) 123!29 = !DILocation(line: 8, column: 11, scope: !14) 124!30 = !DILocation(line: 8, column: 22, scope: !14) 125!31 = !DILocation(line: 8, column: 20, scope: !14) 126!32 = !DILocation(line: 8, column: 32, scope: !14) 127!33 = !DILocation(line: 8, column: 3, scope: !14) 128