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https://github.com/RPCS3/llvm-mirror.git
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a9fbb2813b
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
276 lines
12 KiB
LLVM
276 lines
12 KiB
LLVM
; REQUIRES: object-emission
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; RUN: llc < %s -o %t -filetype=obj -O0 -generate-type-units -mtriple=x86_64-unknown-linux-gnu
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; RUN: llvm-dwarfdump %t | FileCheck --check-prefix=CHECK --check-prefix=SINGLE %s
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; RUN: llvm-readobj -s -t %t | FileCheck --check-prefix=OBJ_SINGLE %s
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; RUN: llc < %s -split-dwarf=Enable -o %t -filetype=obj -O0 -generate-type-units -mtriple=x86_64-unknown-linux-gnu
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; RUN: llvm-dwarfdump %t | FileCheck --check-prefix=CHECK --check-prefix=FISSION %s
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; RUN: llvm-readobj -s -t %t | FileCheck --check-prefix=OBJ_FISSION %s
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; Generated from bar.cpp:
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; #line 1 "bar.h"
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; struct bar {};
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; #line 2 "bar.cpp"
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; struct bar b;
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; void foo(void) {
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; struct baz {};
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; baz b;
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; }
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; namespace echidna {
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; namespace capybara {
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; namespace mongoose {
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; class fluffy {
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; int a;
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; int b;
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; };
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; fluffy animal;
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; }
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; }
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; }
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; namespace {
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; struct walrus {
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; walrus() {}
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; };
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; }
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; walrus w;
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; struct wombat {
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; struct {
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; int a;
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; int b;
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; } a_b;
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; };
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; wombat wom;
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; SINGLE-LABEL: .debug_info contents:
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; FISSION-LABEL: .debug_info.dwo contents:
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; CHECK: Compile Unit: length = [[CU_SIZE:[0-9a-f]+]]
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; CHECK: [[BAR:^0x........]]: DW_TAG_structure_type
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; CHECK-NEXT: DW_AT_declaration
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; CHECK-NEXT: DW_AT_signature {{.*}} (0x1d02f3be30cc5688)
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; CHECK: [[FLUFFY:^0x........]]: DW_TAG_class_type
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; CHECK-NEXT: DW_AT_declaration
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; CHECK-NEXT: DW_AT_signature {{.*}} (0xb04af47397402e77)
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; Ensure the CU-local type 'walrus' is not placed in a type unit.
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; CHECK: [[WALRUS:^0x........]]: DW_TAG_structure_type
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; CHECK-NEXT: DW_AT_name{{.*}}"walrus"
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; CHECK-NEXT: DW_AT_byte_size
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; CHECK-NEXT: DW_AT_decl_file
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; CHECK-NEXT: DW_AT_decl_line
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; CHECK: [[WOMBAT:^0x........]]: DW_TAG_structure_type
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; CHECK-NEXT: DW_AT_declaration
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; CHECK-NEXT: DW_AT_signature {{.*}} (0xfd756cee88f8a118)
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; SINGLE-LABEL: .debug_types contents:
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; FISSION-NOT: .debug_types contents:
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; FISSION-LABEL: .debug_types.dwo contents:
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; Check that we generate a hash for bar and the value.
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; CHECK-NOT: type_signature
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; CHECK-LABEL: type_signature = 0x1d02f3be30cc5688
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; CHECK: DW_TAG_structure_type
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; FISSION-NEXT: DW_AT_name {{.*}} ( indexed {{.*}} "bar"
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; SINGLE-NEXT: DW_AT_name {{.*}} "bar"
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; Check that we generate a hash for fluffy and the value.
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; CHECK-NOT: type_signature
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; CHECK-LABEL: type_signature = 0xb04af47397402e77
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; CHECK-NOT: DW_AT_GNU_odr_signature [DW_FORM_data8] (0x9a0124d5a0c21c52)
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; CHECK: DW_TAG_namespace
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; CHECK-NEXT: DW_AT_name{{.*}}"echidna"
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; CHECK: DW_TAG_namespace
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; CHECK-NEXT: DW_AT_name{{.*}}"capybara"
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; CHECK: DW_TAG_namespace
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; CHECK-NEXT: DW_AT_name{{.*}}"mongoose"
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; CHECK: DW_TAG_class_type
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; CHECK-NEXT: DW_AT_name{{.*}}"fluffy"
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; Check that we generate a hash for wombat and the value, but not for the
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; anonymous type contained within.
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; CHECK-NOT: type_signature
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; CHECK-LABEL: type_signature = 0xfd756cee88f8a118
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; CHECK-NOT: DW_AT_GNU_odr_signature [DW_FORM_data8] (0x685bcc220141e9d7)
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; CHECK: DW_TAG_structure_type
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; CHECK-NEXT: DW_AT_name{{.*}}"wombat"
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; CHECK-NOT: type_signature
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; CHECK-LABEL: type_signature = 0xe94f6d3843e62d6b
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; CHECK: DW_TAG_type_unit
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; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000)
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; CHECK-NOT: NULL
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; CHECK-NOT: DW_AT_GNU_odr_signature
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; CHECK: DW_TAG_structure_type
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; The signature for the outer 'wombat' type
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; CHECK: DW_AT_signature [DW_FORM_ref_sig8] (0xfd756cee88f8a118)
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; CHECK: DW_TAG_structure_type
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; CHECK-NOT: DW_AT_name
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; CHECK-NOT: DW_AT_GNU_odr_signature
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; CHECK: DW_TAG_member
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; CHECK-NEXT: DW_AT_name{{.*}}"a"
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; CHECK-LABEL: .debug_line contents:
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; CHECK: Line table prologue
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; CHECK-NOT: file_names[
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; SINGLE: file_names{{.*}} bar.h
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; CHECK: file_names{{.*}} bar.cpp
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; CHECK-NOT: file_names[
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; CHECK-LABEL: .debug_line.dwo contents:
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; FISSION: Line table prologue
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; FISSION: opcode_base: 1
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; FISSION-NOT: standard_opcode_lengths
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; FISSION-NOT: include_directories
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; FISSION-NOT: file_names[
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; FISSION: file_names{{.*}} bar.h
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; FISSION: file_names{{.*}} bar.cpp
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; FISSION-NOT: file_names[
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; CHECK-LABEL: .debug_str contents:
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; Use the unit size as a rough hash/identifier for the unit we're dealing with
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; it happens to be unambiguous at the moment, but it's hardly ideal.
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; CHECK-LABEL: .debug_pubtypes contents:
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; Don't emit pubtype entries for type DIEs in the compile unit that just indirect to a type unit.
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; CHECK-NEXT: unit_size = [[CU_SIZE]]
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; CHECK-NEXT: Offset Name
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; CHECK-DAG: [[BAR]] "bar"
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; CHECK-DAG: [[WALRUS]] "(anonymous namespace)::walrus"
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; CHECK-DAG: [[WOMBAT]] "wombat"
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; CHECK-DAG: [[FLUFFY]] "echidna::capybara::mongoose::fluffy"
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; Make sure debug_types are in comdat groups. This could be more rigid to check
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; that they're the right comdat groups (each type in a separate comdat group,
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; etc)
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; OBJ_SINGLE: Name: .debug_types (
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; OBJ_SINGLE-NOT: }
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; OBJ_SINGLE: SHF_GROUP
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; Fission type units don't go in comdat groups, since their linker is debug
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; aware it's handled using the debug info semantics rather than raw ELF object
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; semantics.
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; OBJ_FISSION: Name: .debug_types.dwo (
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; OBJ_FISSION-NOT: SHF_GROUP
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; OBJ_FISSION: }
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%struct.bar = type { i8 }
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%"class.echidna::capybara::mongoose::fluffy" = type { i32, i32 }
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%"struct.<anonymous namespace>::walrus" = type { i8 }
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%struct.wombat = type { %struct.anon }
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%struct.anon = type { i32, i32 }
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%struct.baz = type { i8 }
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@b = global %struct.bar zeroinitializer, align 1, !dbg !39
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@_ZN7echidna8capybara8mongoose6animalE = global %"class.echidna::capybara::mongoose::fluffy" zeroinitializer, align 4, !dbg !40
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@w = internal global %"struct.<anonymous namespace>::walrus" zeroinitializer, align 1, !dbg !41
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@wom = global %struct.wombat zeroinitializer, align 4, !dbg !42
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@llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }]
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; Function Attrs: nounwind uwtable
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define void @_Z3foov() #0 !dbg !22 {
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entry:
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%b = alloca %struct.baz, align 1
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call void @llvm.dbg.declare(metadata %struct.baz* %b, metadata !46, metadata !DIExpression()), !dbg !48
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ret void, !dbg !49
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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define internal void @__cxx_global_var_init() section ".text.startup" !dbg !26 {
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entry:
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call void @_ZN12_GLOBAL__N_16walrusC2Ev(%"struct.<anonymous namespace>::walrus"* @w), !dbg !50
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ret void, !dbg !50
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}
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; Function Attrs: nounwind uwtable
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define internal void @_ZN12_GLOBAL__N_16walrusC2Ev(%"struct.<anonymous namespace>::walrus"* %this) unnamed_addr #0 align 2 !dbg !27 {
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entry:
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%this.addr = alloca %"struct.<anonymous namespace>::walrus"*, align 8
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store %"struct.<anonymous namespace>::walrus"* %this, %"struct.<anonymous namespace>::walrus"** %this.addr, align 8
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call void @llvm.dbg.declare(metadata %"struct.<anonymous namespace>::walrus"** %this.addr, metadata !51, metadata !DIExpression()), !dbg !53
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%this1 = load %"struct.<anonymous namespace>::walrus"*, %"struct.<anonymous namespace>::walrus"** %this.addr
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ret void, !dbg !54
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}
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define internal void @_GLOBAL__I_a() section ".text.startup" !dbg !36 {
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entry:
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call void @__cxx_global_var_init(), !dbg !55
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ret void, !dbg !55
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}
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!43, !44}
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!llvm.ident = !{!45}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, splitDebugFilename: "bar.dwo", emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !38, imports: !2)
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!1 = !DIFile(filename: "bar.cpp", directory: "/tmp/dbginfo")
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!2 = !{}
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!3 = !{!4, !6, !14, !17}
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!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "bar", line: 1, size: 8, align: 8, file: !5, elements: !2, identifier: "_ZTS3bar")
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!5 = !DIFile(filename: "bar.h", directory: "/tmp/dbginfo")
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!6 = !DICompositeType(tag: DW_TAG_class_type, name: "fluffy", line: 13, size: 64, align: 32, file: !1, scope: !7, elements: !10, identifier: "_ZTSN7echidna8capybara8mongoose6fluffyE")
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!7 = !DINamespace(name: "mongoose", line: 12, file: !1, scope: !8)
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!8 = !DINamespace(name: "capybara", line: 11, file: !1, scope: !9)
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!9 = !DINamespace(name: "echidna", line: 10, file: !1, scope: null)
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!10 = !{!11, !13}
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!11 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 14, size: 32, align: 32, flags: DIFlagPrivate, file: !1, scope: !6, baseType: !12)
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!12 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!13 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 15, size: 32, align: 32, offset: 32, flags: DIFlagPrivate, file: !1, scope: !6, baseType: !12)
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!14 = !DICompositeType(tag: DW_TAG_structure_type, name: "wombat", line: 31, size: 64, align: 32, file: !1, elements: !15, identifier: "_ZTS6wombat")
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!15 = !{!16}
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!16 = !DIDerivedType(tag: DW_TAG_member, name: "a_b", line: 35, size: 64, align: 32, file: !1, scope: !14, baseType: !17)
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!17 = !DICompositeType(tag: DW_TAG_structure_type, line: 32, size: 64, align: 32, file: !1, scope: !14, elements: !18, identifier: "_ZTSN6wombatUt_E")
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!18 = !{!19, !20}
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!19 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 33, size: 32, align: 32, file: !1, scope: !17, baseType: !12)
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!20 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 34, size: 32, align: 32, offset: 32, file: !1, scope: !17, baseType: !12)
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!22 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !23, type: !24, variables: !2)
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!23 = !DIFile(filename: "bar.cpp", directory: "/tmp/dbginfo")
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!24 = !DISubroutineType(types: !25)
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!25 = !{null}
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!26 = distinct !DISubprogram(name: "__cxx_global_var_init", line: 29, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 29, file: !1, scope: !23, type: !24, variables: !2)
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!27 = distinct !DISubprogram(name: "walrus", linkageName: "_ZN12_GLOBAL__N_16walrusC2Ev", line: 25, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 25, file: !1, scope: !28, type: !32, declaration: !31, variables: !2)
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!28 = !DICompositeType(tag: DW_TAG_structure_type, name: "walrus", line: 24, size: 8, align: 8, file: !1, scope: !29, elements: !30)
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!29 = !DINamespace(line: 23, file: !1, scope: null)
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!30 = !{!31}
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!31 = !DISubprogram(name: "walrus", line: 25, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 25, file: !1, scope: !28, type: !32)
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!32 = !DISubroutineType(types: !33)
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!33 = !{null, !34}
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!34 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !28)
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!36 = distinct !DISubprogram(name: "", linkageName: "_GLOBAL__I_a", line: 25, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagArtificial, isOptimized: false, unit: !0, scopeLine: 25, file: !1, scope: !23, type: !37, variables: !2)
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!37 = !DISubroutineType(types: !2)
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!38 = !{!39, !40, !41, !42}
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!39 = !DIGlobalVariable(name: "b", line: 3, isLocal: false, isDefinition: true, scope: null, file: !23, type: !4)
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!40 = !DIGlobalVariable(name: "animal", linkageName: "_ZN7echidna8capybara8mongoose6animalE", line: 18, isLocal: false, isDefinition: true, scope: !7, file: !23, type: !6)
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!41 = !DIGlobalVariable(name: "w", line: 29, isLocal: true, isDefinition: true, scope: null, file: !23, type: !28)
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!42 = !DIGlobalVariable(name: "wom", line: 38, isLocal: false, isDefinition: true, scope: null, file: !23, type: !14)
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!43 = !{i32 2, !"Dwarf Version", i32 4}
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!44 = !{i32 1, !"Debug Info Version", i32 3}
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!45 = !{!"clang version 3.5 "}
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!46 = !DILocalVariable(name: "b", line: 7, scope: !22, file: !23, type: !47)
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!47 = !DICompositeType(tag: DW_TAG_structure_type, name: "baz", line: 6, size: 8, align: 8, file: !1, scope: !22, elements: !2)
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!48 = !DILocation(line: 7, scope: !22)
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!49 = !DILocation(line: 8, scope: !22)
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!50 = !DILocation(line: 29, scope: !26)
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!51 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !27, type: !52)
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!52 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !28)
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!53 = !DILocation(line: 0, scope: !27)
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!54 = !DILocation(line: 25, scope: !27)
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!55 = !DILocation(line: 25, scope: !36)
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