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This allows us to catch more opportunities for ODR-based type uniquing during LTO. Paired commit with CFE which updates some testcases to verify the new DIBuilder behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204106 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
5.0 KiB
LLVM
99 lines
5.0 KiB
LLVM
; REQUIRES: object-emission
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;
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; RUN: llvm-link %s %p/type-unique-odr-b.ll -S -o - | %llc_dwarf -filetype=obj -O0 | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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;
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; Test ODR-based type uniquing for C++ class members.
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; rdar://problem/15851313.
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;
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; $ cat -n type-unique-odr-a.cpp
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; 1 class A {
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; 2 int data;
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; 3 protected:
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; 4 void getFoo();
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; 5 };
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; 6
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; 7 static void bar() {
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; 8 A a;
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; 9 }
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; 10
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; 11 void baz() { bar(); }
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;; #include "ab.h"
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; foo_t bar() {
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; return A().getFoo();
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; }
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;
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; CHECK: DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_MIPS_linkage_name {{.*}} "_Z3bazv"
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; CHECK: DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_MIPS_linkage_name {{.*}} "_ZL3barv"
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; CHECK: DW_TAG_class_type
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; CHECK-NEXT: DW_AT_name {{.*}} "A"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_member
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; CHECK-NEXT: DW_AT_name {{.*}} "data"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_MIPS_linkage_name {{.*}} "_ZN1A6getFooEv"
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; CHECK-NEXT: DW_AT_name {{.*}} "getFoo"
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; getFoo and A may only appear once.
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; CHECK-NOT: {{(getFoo)|("A")}}
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; ModuleID = 'type-unique-odr-a.cpp'
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%class.A = type { i32 }
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; Function Attrs: nounwind
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define void @_Z3bazv() #0 {
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entry:
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call void @_ZL3barv(), !dbg !23
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ret void, !dbg !23
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}
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; Function Attrs: nounwind
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define internal void @_ZL3barv() #0 {
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entry:
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%a = alloca %class.A, align 4
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call void @llvm.dbg.declare(metadata !{%class.A* %a}, metadata !24), !dbg !25
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ret void, !dbg !26
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata) #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!20, !21}
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!llvm.ident = !{!22}
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!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
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!1 = metadata !{metadata !"<unknown>", metadata !""}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{i32 786434, metadata !5, null, metadata !"A", i32 1, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ]
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!5 = metadata !{metadata !"type-unique-odr-a.cpp", metadata !""}
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!6 = metadata !{metadata !7, metadata !9}
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!7 = metadata !{i32 786445, metadata !5, metadata !"_ZTS1A", metadata !"data", i32 2, i64 32, i64 32, i64 0, i32 1, metadata !8} ; [ DW_TAG_member ] [data] [line 2, size 32, align 32, offset 0] [private] [from int]
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!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!9 = metadata !{i32 786478, metadata !5, metadata !"_ZTS1A", metadata !"getFoo", metadata !"getFoo", metadata !"_ZN1A6getFooEv", i32 4, metadata !10, i1 false, i1 false, i32 0, i32 0, null, i32 258, i1 false, null, null, i32 0, metadata !13, i32 4} ; [ DW_TAG_subprogram ] [line 4] [protected] [getFoo]
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!10 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !11, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!11 = metadata !{null, metadata !12}
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!12 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
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!13 = metadata !{i32 786468}
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!14 = metadata !{metadata !15, metadata !19}
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!15 = metadata !{i32 786478, metadata !5, metadata !16, metadata !"baz", metadata !"baz", metadata !"_Z3bazv", i32 11, metadata !17, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_Z3bazv, null, null, metadata !2, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [baz]
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!16 = metadata !{i32 786473, metadata !5} ; [ DW_TAG_file_type ] [type-unique-odr-a.cpp]
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!17 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !18, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!18 = metadata !{null}
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!19 = metadata !{i32 786478, metadata !5, metadata !16, metadata !"bar", metadata !"bar", metadata !"_ZL3barv", i32 7, metadata !17, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_ZL3barv, null, null, metadata !2, i32 7} ; [ DW_TAG_subprogram ] [line 7] [local] [def] [bar]
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!20 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
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!21 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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!22 = metadata !{metadata !"clang version 3.5.0 "}
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!23 = metadata !{i32 11, i32 0, metadata !15, null}
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!24 = metadata !{i32 786688, metadata !19, metadata !"a", metadata !16, i32 8, metadata !"_ZTS1A", i32 0, i32 0} ; [ DW_TAG_auto_variable ] [a] [line 8]
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!25 = metadata !{i32 8, i32 0, metadata !19, null} ; [ DW_TAG_imported_declaration ]
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!26 = metadata !{i32 9, i32 0, metadata !19, null}
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