| ; RUN: llc -mtriple x86_64-apple-macosx -O0 -filetype=obj -o %t_le.o %s |
| ; RUN: llvm-dwarfdump -v -debug-info %t_le.o | FileCheck %s |
| |
| ; Produced at -O0 from: |
| ; struct bitfield { |
| ; int a : 2; |
| ; int b : 32; |
| ; int c : 1; |
| ; int d : 28; |
| ; }; |
| ; struct bitfield b; |
| |
| ; Note that DWARF 2 counts bit offsets backwards from the high end of |
| ; the storage unit to the high end of the bit field. |
| |
| ; CHECK: DW_TAG_member |
| ; CHECK-NEXT: DW_AT_name{{.*}}"a" |
| ; CHECK-NOT: DW_TAG_member |
| ; CHECK: DW_AT_byte_size {{.*}} (0x04) |
| ; CHECK-NEXT: DW_AT_bit_size {{.*}} (0x02) |
| ; CHECK-NEXT: DW_AT_bit_offset {{.*}} (0x1e) |
| ; CHECK-NEXT: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x0) |
| |
| ; CHECK: DW_TAG_member |
| ; CHECK-NEXT: DW_AT_name{{.*}}"b" |
| ; CHECK-NOT: DW_TAG_member |
| ; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x4) |
| |
| ; CHECK: DW_TAG_member |
| ; CHECK-NEXT: DW_AT_name{{.*}}"c" |
| ; CHECK-NOT: DW_TAG_member |
| ; CHECK: DW_AT_byte_size {{.*}} (0x04) |
| ; CHECK-NEXT: DW_AT_bit_size {{.*}} (0x01) |
| ; CHECK-NEXT: DW_AT_bit_offset {{.*}} (0x1f) |
| ; CHECK: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x8) |
| |
| ; CHECK: DW_TAG_member |
| ; CHECK-NEXT: DW_AT_name{{.*}}"d" |
| ; CHECK-NOT: DW_TAG_member |
| ; CHECK: DW_AT_byte_size {{.*}} (0x04) |
| ; CHECK-NEXT: DW_AT_bit_size {{.*}} (0x1c) |
| ; CHECK-NEXT: DW_AT_bit_offset {{.*}} (0x03) |
| ; CHECK-NEXT: DW_AT_data_member_location {{.*}} (DW_OP_plus_uconst 0x8) |
| |
| ; ModuleID = 'bitfields.c' |
| source_filename = "test/DebugInfo/X86/bitfields.ll" |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx" |
| |
| %struct.bitfield = type <{ i8, [3 x i8], i64 }> |
| |
| @b = common global %struct.bitfield zeroinitializer, align 4, !dbg !0 |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!13, !14, !15} |
| !llvm.ident = !{!16} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.7.0 (trunk 240548) (llvm/trunk 240554)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4, globals: !5, imports: !4) |
| !3 = !DIFile(filename: "bitfields.c", directory: "/") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DICompositeType(tag: DW_TAG_structure_type, name: "bitfield", file: !3, line: 1, size: 96, elements: !7) |
| !7 = !{!8, !10, !11, !12} |
| !8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !3, line: 2, baseType: !9, size: 2, flags: DIFlagBitField) |
| !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !3, line: 3, baseType: !9, size: 32, offset: 32, flags: DIFlagBitField) |
| !11 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !6, file: !3, line: 4, baseType: !9, size: 1, offset: 64, flags: DIFlagBitField) |
| !12 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !6, file: !3, line: 5, baseType: !9, size: 28, offset: 65, flags: DIFlagBitField) |
| !13 = !{i32 2, !"Dwarf Version", i32 2} |
| !14 = !{i32 2, !"Debug Info Version", i32 3} |
| !15 = !{i32 1, !"PIC Level", i32 2} |
| !16 = !{!"clang version 3.7.0 (trunk 240548) (llvm/trunk 240554)"} |
| |