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clang-p2996/llvm/test/DebugInfo/X86/debug-info-packed-struct.ll
Peter Collingbourne d4135bbc30 DebugInfo: New metadata representation for global variables. 
This patch reverses the edge from DIGlobalVariable to GlobalVariable.
This will allow us to more easily preserve debug info metadata when
manipulating global variables.

Fixes PR30362. A program for upgrading test cases is attached to that
bug.

Differential Revision: http://reviews.llvm.org/D20147

llvm-svn: 281284
2016-09-13 01:12:59 +00:00

199 lines
9.7 KiB
LLVM
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; Generated from tools/clang/test/CodeGen/debug-info-packed-struct.c
; ModuleID = 'llvm/tools/clang/test/CodeGen/debug-info-packed-struct.c'
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-darwin"
; RUN: %llc_dwarf -O0 -filetype=obj -o %t.o %s
; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s
; REQUIRES: object-emission
; // ---------------------------------------------------------------------
; // Not packed.
; // ---------------------------------------------------------------------
; struct size8 {
; int i : 4;
; long long l : 60;
; };
; struct layout0 {
; char l0_ofs0;
; struct size8 l0_ofs8;
; int l0_ofs16 : 1;
; } l0;
%struct.layout0 = type { i8, %struct.size8, i8 }
%struct.size8 = type { i64 }
; CHECK: DW_TAG_structure_type
; CHECK: DW_AT_name {{.*}} "layout0"
; CHECK: DW_AT_byte_size {{.*}} (0x18)
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l0_ofs0"
; CHECK: DW_AT_data_member_location {{.*}}00
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l0_ofs8"
; CHECK: DW_AT_data_member_location {{.*}}08
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l0_ofs16"
; CHECK: DW_AT_bit_size {{.*}} (0x01)
; CHECK: DW_AT_bit_offset {{.*}} (0x1f)
; CHECK: DW_AT_data_member_location {{.*}}10
; // ---------------------------------------------------------------------
; // Implicitly packed.
; // ---------------------------------------------------------------------
; struct size8_anon {
; int : 4;
; long long : 60;
; };
; struct layout1 {
; char l1_ofs0;
; struct size8_anon l1_ofs1;
; int l1_ofs9 : 1;
; } l1;
%struct.layout1 = type <{ i8, %struct.size8_anon, i8, [2 x i8] }>
%struct.size8_anon = type { i64 }
; CHECK: DW_TAG_structure_type
; CHECK: DW_AT_name {{.*}} "layout1"
; CHECK: DW_AT_byte_size {{.*}} (0x0c)
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l1_ofs0"
; CHECK: DW_AT_data_member_location {{.*}}00
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l1_ofs1"
; CHECK: DW_AT_data_member_location {{.*}}01
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l1_ofs9"
; CHECK: DW_AT_byte_size {{.*}} (0x04)
; CHECK: DW_AT_bit_size {{.*}} (0x01)
; CHECK: DW_AT_bit_offset {{.*}} (0x17)
; CHECK: DW_AT_data_member_location {{.*}}08
; // ---------------------------------------------------------------------
; // Explicitly packed.
; // ---------------------------------------------------------------------
; #pragma pack(1)
; struct size8_pack1 {
; int i : 4;
; long long l : 60;
; };
; struct layout2 {
; char l2_ofs0;
; struct size8_pack1 l2_ofs1;
; int l2_ofs9 : 1;
; } l2;
; #pragma pack()
%struct.layout2 = type <{ i8, %struct.size8_pack1, i8 }>
%struct.size8_pack1 = type { i64 }
; CHECK: DW_TAG_structure_type
; CHECK: DW_AT_name {{.*}} "layout2"
; CHECK: DW_AT_byte_size {{.*}} (0x0a)
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l2_ofs0"
; CHECK: DW_AT_data_member_location {{.*}}00
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l2_ofs1"
; CHECK: DW_AT_data_member_location {{.*}}01
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l2_ofs9"
; CHECK: DW_AT_byte_size {{.*}} (0x04)
; CHECK: DW_AT_bit_size {{.*}} (0x01)
; CHECK: DW_AT_bit_offset {{.*}} (0x17)
; CHECK: DW_AT_data_member_location {{.*}}08
; // ---------------------------------------------------------------------
; // Explicitly packed with different alignment.
; // ---------------------------------------------------------------------
; #pragma pack(4)
; struct size8_pack4 {
; int i : 4;
; long long l : 60;
; };
; struct layout3 {
; char l3_ofs0;
; struct size8_pack4 l3_ofs4;
; int l3_ofs12 : 1;
; } l 3;
; #pragma pack()
%struct.layout3 = type <{ i8, [3 x i8], %struct.size8_pack4, i8, [3 x i8] }>
%struct.size8_pack4 = type { i64 }
; CHECK: DW_TAG_structure_type
; CHECK: DW_AT_name {{.*}} "layout3"
; CHECK: DW_AT_byte_size {{.*}} (0x10)
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l3_ofs0"
; CHECK: DW_AT_data_member_location {{.*}}00
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l3_ofs4"
; CHECK: DW_AT_data_member_location {{.*}}04
; CHECK: DW_TAG_member
; CHECK: DW_AT_name {{.*}} "l3_ofs12"
; CHECK: DW_AT_byte_size {{.*}} (0x04)
; CHECK: DW_AT_bit_size {{.*}} (0x01)
; CHECK: DW_AT_bit_offset {{.*}} (0x1f)
; CHECK: DW_AT_data_member_location {{.*}}0c
@l0 = common global %struct.layout0 zeroinitializer, align 8, !dbg !4
@l1 = common global %struct.layout1 zeroinitializer, align 4, !dbg !18
@l2 = common global %struct.layout2 zeroinitializer, align 1, !dbg !25
@l3 = common global %struct.layout3 zeroinitializer, align 4, !dbg !35
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!45, !46}
!llvm.ident = !{!47}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (trunk 240791) (llvm/trunk 240790)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !3, imports: !2)
!1 = !DIFile(filename: "/llvm/tools/clang/test/CodeGen/<stdin>", directory: "/llvm/_build.ninja.release")
!2 = !{}
!3 = !{!4, !18, !25, !35}
!4 = !DIGlobalVariable(name: "l0", scope: !0, file: !5, line: 88, type: !6, isLocal: false, isDefinition: true)
!5 = !DIFile(filename: "/llvm/tools/clang/test/CodeGen/debug-info-packed-struct.c", directory: "/llvm/_build.ninja.release")
!6 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout0", file: !5, line: 15, size: 192, align: 64, elements: !7)
!7 = !{!8, !10, !17}
!8 = !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs0", scope: !6, file: !5, line: 16, baseType: !9, size: 8, align: 8)
!9 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
!10 = !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs8", scope: !6, file: !5, line: 17, baseType: !11, size: 64, align: 64, offset: 64)
!11 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8", file: !5, line: 11, size: 64, align: 64, elements: !12)
!12 = !{!13, !15}
!13 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !11, file: !5, line: 12, baseType: !14, size: 4, align: 32)
!14 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!15 = !DIDerivedType(tag: DW_TAG_member, name: "l", scope: !11, file: !5, line: 13, baseType: !16, size: 60, offset: 4)
!16 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed)
!17 = !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs16", scope: !6, file: !5, line: 18, baseType: !14, size: 1, align: 32, offset: 128)
!18 = !DIGlobalVariable(name: "l1", scope: !0, file: !5, line: 89, type: !19, isLocal: false, isDefinition: true)
!19 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout1", file: !5, line: 34, size: 96, align: 32, elements: !20)
!20 = !{!21, !22, !24}
!21 = !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs0", scope: !19, file: !5, line: 35, baseType: !9, size: 8, align: 8)
!22 = !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs1", scope: !19, file: !5, line: 36, baseType: !23, size: 64, align: 8, offset: 8)
!23 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8_anon", file: !5, line: 30, size: 64, align: 8, elements: !2)
!24 = !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs9", scope: !19, file: !5, line: 37, baseType: !14, size: 1, align: 32, offset: 72)
!25 = !DIGlobalVariable(name: "l2", scope: !0, file: !5, line: 90, type: !26, isLocal: false, isDefinition: true)
!26 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout2", file: !5, line: 54, size: 80, align: 8, elements: !27)
!27 = !{!28, !29, !34}
!28 = !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs0", scope: !26, file: !5, line: 55, baseType: !9, size: 8, align: 8)
!29 = !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs1", scope: !26, file: !5, line: 56, baseType: !30, size: 64, align: 8, offset: 8)
!30 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8_pack1", file: !5, line: 50, size: 64, align: 8, elements: !31)
!31 = !{!32, !33}
!32 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !30, file: !5, line: 51, baseType: !14, size: 4, align: 32)
!33 = !DIDerivedType(tag: DW_TAG_member, name: "l", scope: !30, file: !5, line: 52, baseType: !16, size: 60, offset: 4)
!34 = !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs9", scope: !26, file: !5, line: 57, baseType: !14, size: 1, align: 32, offset: 72)
!35 = !DIGlobalVariable(name: "l3", scope: !0, file: !5, line: 91, type: !36, isLocal: false, isDefinition: true)
!36 = !DICompositeType(tag: DW_TAG_structure_type, name: "layout3", file: !5, line: 76, size: 128, align: 32, elements: !37)
!37 = !{!38, !39, !44}
!38 = !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs0", scope: !36, file: !5, line: 77, baseType: !9, size: 8, align: 8)
!39 = !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs4", scope: !36, file: !5, line: 78, baseType: !40, size: 64, align: 32, offset: 32)
!40 = !DICompositeType(tag: DW_TAG_structure_type, name: "size8_pack4", file: !5, line: 72, size: 64, align: 32, elements: !41)
!41 = !{!42, !43}
!42 = !DIDerivedType(tag: DW_TAG_member, name: "i", scope: !40, file: !5, line: 73, baseType: !14, size: 4, align: 32)
!43 = !DIDerivedType(tag: DW_TAG_member, name: "l", scope: !40, file: !5, line: 74, baseType: !16, size: 60, offset: 4)
!44 = !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs12", scope: !36, file: !5, line: 79, baseType: !14, size: 1, align: 32, offset: 96)
!45 = !{i32 2, !"Dwarf Version", i32 2}
!46 = !{i32 2, !"Debug Info Version", i32 3}
!47 = !{!"clang version 3.7.0 (trunk 240791) (llvm/trunk 240790)"}
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