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llvm-mirror/test/DebugInfo/tu-composite.ll
Duncan P. N. Exon Smith c1be4794ba Revert "Revert "DI: Fold constant arguments into a single MDString"" 
This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

llvm-svn: 219010
2014-10-03 20:01:09 +00:00

186 lines
13 KiB
LLVM
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; REQUIRES: object-emission
; RUN: %llc_dwarf -filetype=obj -O0 < %s > %t
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; CHECK: [[TYPE:.*]]: DW_TAG_structure_type
; Make sure we correctly handle containing type of a struct being a type identifier.
; CHECK-NEXT: DW_AT_containing_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE]]})
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "C")
; Make sure we correctly handle context of a subprogram being a type identifier.
; CHECK: [[SP:.*]]: DW_TAG_subprogram
; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "foo")
; Make sure we correctly handle containing type of a subprogram being a type identifier.
; CHECK: DW_AT_containing_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE]]})
; CHECK: DW_TAG_formal_parameter
; CHECK: NULL
; CHECK: NULL
; CHECK: [[TYPE2:.*]]: DW_TAG_structure_type
; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "bar")
; CHECK: DW_TAG_structure_type
; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "D")
; CHECK: DW_TAG_member
; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "a")
; Make sure we correctly handle context of a struct being a type identifier.
; CHECK: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "Nested")
; CHECK: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "Nested2")
; CHECK-NEXT: DW_AT_declaration [DW_FORM_flag] (0x01)
; CHECK: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "virt<bar>")
; Make sure we correctly handle type of a template_type being a type identifier.
; CHECK: DW_TAG_template_type_parameter
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]})
; CHECK-NEXT: DW_AT_name [DW_FORM_strp] {{.*}}= "T")
; Make sure we correctly handle derived-from of a typedef being a type identifier.
; CHECK: DW_TAG_typedef
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]})
; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "baz2")
; Make sure we correctly handle derived-from of a pointer type being a type identifier.
; CHECK: DW_TAG_pointer_type
; CHECK: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE]]})
; CHECK: DW_TAG_typedef
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]})
; CHECK: DW_AT_name [DW_FORM_strp] {{.*}}= "baz")
; Make sure we correctly handle derived-from of an array type being a type identifier.
; CHECK: DW_TAG_array_type
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE2]]})
; IR generated from clang -g with the following source:
; struct C {
; virtual void foo();
; };
; void C::foo() {
; }
;
; struct bar { };
; typedef bar baz;
; struct D {
; typedef bar baz2;
; static int a;
; struct Nested { };
; struct Nested2 { };
; template <typename T>
; struct virt {
; T* values;
; };
; };
; void test() {
; baz B;
; bar A[3];
; D::baz2 B2;
; D::Nested e;
; D::Nested2 *p;
; D::virt<bar> t;
; }
%struct.C = type { i32 (...)** }
%struct.bar = type { i8 }
%"struct.D::Nested" = type { i8 }
%"struct.D::Nested2" = type { i8 }
%"struct.D::virt" = type { %struct.bar* }
@_ZTV1C = unnamed_addr constant [3 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1C to i8*), i8* bitcast (void (%struct.C*)* @_ZN1C3fooEv to i8*)]
@_ZTVN10__cxxabiv117__class_type_infoE = external global i8*
@_ZTS1C = constant [3 x i8] c"1C\00"
@_ZTI1C = unnamed_addr constant { i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8** @_ZTVN10__cxxabiv117__class_type_infoE, i64 2) to i8*), i8* getelementptr inbounds ([3 x i8]* @_ZTS1C, i32 0, i32 0) }
; Function Attrs: nounwind ssp uwtable
define void @_ZN1C3fooEv(%struct.C* %this) unnamed_addr #0 align 2 {
entry:
%this.addr = alloca %struct.C*, align 8
store %struct.C* %this, %struct.C** %this.addr, align 8
call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr}, metadata !36, metadata !{metadata !"0x102"}), !dbg !38
%this1 = load %struct.C** %this.addr
ret void, !dbg !39
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: nounwind ssp uwtable
define void @_Z4testv() #0 {
entry:
%B = alloca %struct.bar, align 1
%A = alloca [3 x %struct.bar], align 1
%B2 = alloca %struct.bar, align 1
%e = alloca %"struct.D::Nested", align 1
%p = alloca %"struct.D::Nested2"*, align 8
%t = alloca %"struct.D::virt", align 8
call void @llvm.dbg.declare(metadata !{%struct.bar* %B}, metadata !40, metadata !{metadata !"0x102"}), !dbg !42
call void @llvm.dbg.declare(metadata !{[3 x %struct.bar]* %A}, metadata !43, metadata !{metadata !"0x102"}), !dbg !47
call void @llvm.dbg.declare(metadata !{%struct.bar* %B2}, metadata !48, metadata !{metadata !"0x102"}), !dbg !50
call void @llvm.dbg.declare(metadata !{%"struct.D::Nested"* %e}, metadata !51, metadata !{metadata !"0x102"}), !dbg !52
call void @llvm.dbg.declare(metadata !{%"struct.D::Nested2"** %p}, metadata !53, metadata !{metadata !"0x102"}), !dbg !55
call void @llvm.dbg.declare(metadata !{%"struct.D::virt"* %t}, metadata !56, metadata !{metadata !"0x102"}), !dbg !57
ret void, !dbg !58
}
attributes #0 = { nounwind ssp 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" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!35, !59}
!0 = metadata !{metadata !"0x11\004\00clang version 3.4\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !30, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [tmp.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"tmp.cpp", metadata !"."}
!2 = metadata !{}
!3 = metadata !{metadata !4, metadata !18, metadata !19, metadata !22, metadata !23, metadata !24}
!4 = metadata !{metadata !"0x13\00C\001\0064\0064\000\000\000", metadata !1, null, null, metadata !5, metadata !"_ZTS1C", null, metadata !"_ZTS1C"} ; [ DW_TAG_structure_type ] [C] [line 1, size 64, align 64, offset 0] [def] [from ]
!5 = metadata !{metadata !6, metadata !13}
!6 = metadata !{metadata !"0xd\00_vptr$C\000\0064\000\000\0064", metadata !1, metadata !7, metadata !8} ; [ DW_TAG_member ] [_vptr$C] [line 0, size 64, align 0, offset 0] [artificial] [from ]
!7 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [tmp.cpp]
!8 = metadata !{metadata !"0xf\00\000\0064\000\000\000", null, null, metadata !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 0, offset 0] [from __vtbl_ptr_type]
!9 = metadata !{metadata !"0xf\00__vtbl_ptr_type\000\0064\000\000\000", null, null, metadata !10} ; [ DW_TAG_pointer_type ] [__vtbl_ptr_type] [line 0, size 64, align 0, offset 0] [from ]
!10 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!11 = metadata !{metadata !12}
!12 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!13 = metadata !{metadata !"0x2e\00foo\00foo\00_ZN1C3fooEv\002\000\000\001\006\00256\000\002", metadata !1, metadata !"_ZTS1C", metadata !14, metadata !"_ZTS1C", null, null, i32 0, metadata !17} ; [ DW_TAG_subprogram ] [line 2] [foo]
!14 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!15 = metadata !{null, metadata !16}
!16 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1C]
!17 = metadata !{i32 786468}
!18 = metadata !{metadata !"0x13\00bar\007\008\008\000\000\000", metadata !1, null, null, metadata !2, null, null, metadata !"_ZTS3bar"} ; [ DW_TAG_structure_type ] [bar] [line 7, size 8, align 8, offset 0] [def] [from ]
!19 = metadata !{metadata !"0x13\00D\009\008\008\000\000\000", metadata !1, null, null, metadata !20, null, null, metadata !"_ZTS1D"} ; [ DW_TAG_structure_type ] [D] [line 9, size 8, align 8, offset 0] [def] [from ]
!20 = metadata !{metadata !21}
!21 = metadata !{metadata !"0xd\00a\0011\000\000\000\004096", metadata !1, metadata !"_ZTS1D", metadata !12, null} ; [ DW_TAG_member ] [a] [line 11, size 0, align 0, offset 0] [static] [from int]
!22 = metadata !{metadata !"0x13\00Nested\0012\008\008\000\000\000", metadata !1, metadata !"_ZTS1D", null, metadata !2, null, null, metadata !"_ZTSN1D6NestedE"} ; [ DW_TAG_structure_type ] [Nested] [line 12, size 8, align 8, offset 0] [def] [from ]
!23 = metadata !{metadata !"0x13\00Nested2\0013\000\000\000\004\000", metadata !1, metadata !"_ZTS1D", null, null, null, null, metadata !"_ZTSN1D7Nested2E"} ; [ DW_TAG_structure_type ] [Nested2] [line 13, size 0, align 0, offset 0] [decl] [from ]
!24 = metadata !{metadata !"0x13\00virt<bar>\0015\0064\0064\000\000\000", metadata !1, metadata !"_ZTS1D", null, metadata !25, null, metadata !28, metadata !"_ZTSN1D4virtI3barEE"} ; [ DW_TAG_structure_type ] [virt<bar>] [line 15, size 64, align 64, offset 0] [def] [from ]
!25 = metadata !{metadata !26}
!26 = metadata !{metadata !"0xd\00values\0016\0064\0064\000\000", metadata !1, metadata !"_ZTSN1D4virtI3barEE", metadata !27} ; [ DW_TAG_member ] [values] [line 16, size 64, align 64, offset 0] [from ]
!27 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS3bar"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS3bar]
!28 = metadata !{metadata !29}
!29 = metadata !{metadata !"0x2f\00T\000\000", null, metadata !"_ZTS3bar", null} ; [ DW_TAG_template_type_parameter ]
!30 = metadata !{metadata !31, metadata !32}
!31 = metadata !{metadata !"0x2e\00foo\00foo\00_ZN1C3fooEv\004\000\001\000\006\00256\000\004", metadata !1, null, metadata !14, null, void (%struct.C*)* @_ZN1C3fooEv, null, metadata !13, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [foo]
!32 = metadata !{metadata !"0x2e\00test\00test\00_Z4testv\0020\000\001\000\006\00256\000\0020", metadata !1, metadata !7, metadata !33, null, void ()* @_Z4testv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 20] [def] [test]
!33 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !34, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!34 = metadata !{null}
!35 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
!36 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !31, null, metadata !37} ; [ DW_TAG_arg_variable ] [this] [line 0]
!37 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1C]
!38 = metadata !{i32 0, i32 0, metadata !31, null}
!39 = metadata !{i32 5, i32 0, metadata !31, null}
!40 = metadata !{metadata !"0x100\00B\0021\000", metadata !32, metadata !7, metadata !41} ; [ DW_TAG_auto_variable ] [B] [line 21]
!41 = metadata !{metadata !"0x16\00baz\008\000\000\000\000", metadata !1, null, metadata !"_ZTS3bar"} ; [ DW_TAG_typedef ] [baz] [line 8, size 0, align 0, offset 0] [from _ZTS3bar]
!42 = metadata !{i32 21, i32 0, metadata !32, null}
!43 = metadata !{metadata !"0x100\00A\0022\000", metadata !32, metadata !7, metadata !44} ; [ DW_TAG_auto_variable ] [A] [line 22]
!44 = metadata !{metadata !"0x1\00\000\0024\008\000\000", null, null, metadata !"_ZTS3bar", metadata !45, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 24, align 8, offset 0] [from _ZTS3bar]
!45 = metadata !{metadata !46}
!46 = metadata !{metadata !"0x21\000\003"} ; [ DW_TAG_subrange_type ] [0, 2]
!47 = metadata !{i32 22, i32 0, metadata !32, null}
!48 = metadata !{metadata !"0x100\00B2\0023\000", metadata !32, metadata !7, metadata !49} ; [ DW_TAG_auto_variable ] [B2] [line 23]
!49 = metadata !{metadata !"0x16\00baz2\0010\000\000\000\000", metadata !1, metadata !"_ZTS1D", metadata !"_ZTS3bar"} ; [ DW_TAG_typedef ] [baz2] [line 10, size 0, align 0, offset 0] [from _ZTS3bar]
!50 = metadata !{i32 23, i32 0, metadata !32, null}
!51 = metadata !{metadata !"0x100\00e\0024\000", metadata !32, metadata !7, metadata !22} ; [ DW_TAG_auto_variable ] [e] [line 24]
!52 = metadata !{i32 24, i32 0, metadata !32, null}
!53 = metadata !{metadata !"0x100\00p\0025\000", metadata !32, metadata !7, metadata !54} ; [ DW_TAG_auto_variable ] [p] [line 25]
!54 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTSN1D7Nested2E"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTSN1D7Nested2E]
!55 = metadata !{i32 25, i32 0, metadata !32, null}
!56 = metadata !{metadata !"0x100\00t\0026\000", metadata !32, metadata !7, metadata !24} ; [ DW_TAG_auto_variable ] [t] [line 26]
!57 = metadata !{i32 26, i32 0, metadata !32, null}
!58 = metadata !{i32 27, i32 0, metadata !32, null}
!59 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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