| ; RUN: llc -filetype=obj < %s | llvm-dwarfdump -debug-info --name=data --name=d -c - \ |
| ; RUN: | FileCheck %s --implicit-check-not=DW_TAG |
| |
| ; Generated by clang -c -g -std=c11 -S -emit-llvm from the following C11 source |
| ; |
| ; // every object of type struct data will be aligned to 128-byte boundary |
| ; struct data { |
| ; char x; |
| ; _Alignas(128) char arr[2]; |
| ; }; |
| ; |
| ; _Alignas(2048) struct data d; // this instance of data is aligned even stricter |
| ; int foo(void) |
| ; { |
| ; struct data local_data; |
| ; return 0; |
| ; } |
| |
| ; CHECK: DW_TAG_variable |
| ; CHECK: DW_AT_name{{.*}}"d" |
| ; CHECK: DW_AT_alignment{{.*}}2048 |
| |
| ; CHECK: DW_TAG_structure_type |
| ; CHECK: DW_TAG_member |
| ; CHECK: DW_TAG_member |
| ; CHECK: DW_AT_name{{.*}}"arr" |
| ; CHECK: DW_AT_alignment{{.*}}128 |
| |
| ; ModuleID = 'test.c' |
| source_filename = "test.c" |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| %struct.data = type { i8, [127 x i8], [2 x i8], [126 x i8] } |
| |
| @d = common global %struct.data zeroinitializer, align 2048, !dbg !0 |
| |
| ; Function Attrs: nounwind uwtable |
| define i32 @foo() #0 !dbg !17 { |
| entry: |
| %local_data = alloca %struct.data, align 128 |
| call void @llvm.dbg.declare(metadata ptr %local_data, metadata !21, metadata !22), !dbg !23 |
| ret i32 0, !dbg !24 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind uwtable } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!14, !15} |
| !llvm.ident = !{!16} |
| |
| !0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = !DIGlobalVariable(name: "d", scope: !2, file: !3, line: 7, type: !6, isLocal: false, isDefinition: true, align: 16384) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 4.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) |
| !3 = !DIFile(filename: "test.c", directory: "/tmp") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "data", file: !3, line: 2, size: 2048, elements: !7) |
| !7 = !{!8, !10} |
| !8 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !6, file: !3, line: 3, baseType: !9, size: 8) |
| !9 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) |
| !10 = !DIDerivedType(tag: DW_TAG_member, name: "arr", scope: !6, file: !3, line: 4, baseType: !11, size: 16, align: 1024, offset: 1024) |
| !11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !9, size: 16, elements: !12) |
| !12 = !{!13} |
| !13 = !DISubrange(count: 2) |
| !14 = !{i32 2, !"Dwarf Version", i32 4} |
| !15 = !{i32 2, !"Debug Info Version", i32 3} |
| !16 = !{!"clang version 4.0.0"} |
| !17 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 8, type: !18, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4) |
| !18 = !DISubroutineType(types: !19) |
| !19 = !{!20} |
| !20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !21 = !DILocalVariable(name: "local_data", scope: !17, file: !3, line: 10, type: !6) |
| !22 = !DIExpression() |
| !23 = !DILocation(line: 10, column: 17, scope: !17) |
| !24 = !DILocation(line: 11, column: 5, scope: !17) |
| |