| ; RUN: opt -S < %s -passes=globalopt | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @_ZL1x = internal global ptr null, align 8, !dbg !0 |
| |
| define i32 @main(i32 %argc, ptr %argv) norecurse !dbg !18 { |
| ; CHECK: define i32 @main |
| ; Make sure we localized the global. |
| ; CHECK: alloca ptr |
| ; Make sure the metadata is sane. Currently, we just drop the metadata, |
| ; so it points to nothing. |
| ; CHECK: call void @llvm.dbg.value(metadata !2, |
| ; CHECK: !2 = !{} |
| entry: |
| call void @llvm.dbg.value(metadata i32 %argc, metadata !22, metadata !23), !dbg !24 |
| call void @llvm.dbg.value(metadata ptr %argv, metadata !25, metadata !23), !dbg !26 |
| %0 = load ptr, ptr %argv, align 8, !dbg !27 |
| store ptr %0, ptr @_ZL1x, align 8, !dbg !29 |
| call void @llvm.dbg.value(metadata ptr @_ZL1x, metadata !30, metadata !23), !dbg !31 |
| %1 = load ptr, ptr @_ZL1x, align 8, !dbg !32 |
| %2 = load i8, ptr %1, align 1, !dbg !33 |
| %conv = sext i8 %2 to i32, !dbg !33 |
| ret i32 %conv, !dbg !34 |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!15, !16} |
| !llvm.ident = !{!17} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "x", linkageName: "_ZL1x", scope: !2, file: !14, line: 1, type: !6, isLocal: true, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !13) |
| !3 = !DIFile(filename: "-", directory: "/") |
| !4 = !{} |
| !5 = !{!6, !11} |
| !6 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64) |
| !7 = !DICompositeType(tag: DW_TAG_array_type, baseType: !8, size: 1600, elements: !9) |
| !8 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) |
| !9 = !{!10} |
| !10 = !DISubrange(count: 200) |
| !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) |
| !12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64) |
| !13 = !{!0} |
| !14 = !DIFile(filename: "<stdin>", directory: "/") |
| !15 = !{i32 2, !"Dwarf Version", i32 4} |
| !16 = !{i32 2, !"Debug Info Version", i32 3} |
| !17 = !{!"clang"} |
| !18 = distinct !DISubprogram(name: "main", scope: !14, file: !14, line: 2, type: !19, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4) |
| !19 = !DISubroutineType(types: !20) |
| !20 = !{!21, !21, !11} |
| !21 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !22 = !DILocalVariable(name: "argc", arg: 1, scope: !18, file: !14, line: 2, type: !21) |
| !23 = !DIExpression() |
| !24 = !DILocation(line: 2, column: 14, scope: !18) |
| !25 = !DILocalVariable(name: "argv", arg: 2, scope: !18, file: !14, line: 2, type: !11) |
| !26 = !DILocation(line: 2, column: 26, scope: !18) |
| !27 = !DILocation(line: 2, column: 52, scope: !18) |
| !28 = !DILocation(line: 2, column: 38, scope: !18) |
| !29 = !DILocation(line: 2, column: 36, scope: !18) |
| !30 = !DILocalVariable(name: "y", scope: !18, file: !14, line: 2, type: !11) |
| !31 = !DILocation(line: 2, column: 68, scope: !18) |
| !32 = !DILocation(line: 2, column: 92, scope: !18) |
| !33 = !DILocation(line: 2, column: 91, scope: !18) |
| !34 = !DILocation(line: 2, column: 84, scope: !18) |