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Debug info: Allow aggregate types to be described by constants.
llvm-svn: 225378
This commit is contained in:
Adrian Prantl
parent
3a3e6ac2f6
commit
fec7723d82
@ -630,10 +630,13 @@ static bool isUnsignedDIType(DwarfDebug *DD, DIType Ty) {
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// FIXME: reference and rvalue_reference /probably/ shouldn't be allowed
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// here, but accept them for now due to a bug in SROA producing bogus
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// dbg.values.
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if (T == dwarf::DW_TAG_pointer_type ||
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if (T == dwarf::DW_TAG_array_type ||
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T == dwarf::DW_TAG_class_type ||
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T == dwarf::DW_TAG_pointer_type ||
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T == dwarf::DW_TAG_ptr_to_member_type ||
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T == dwarf::DW_TAG_reference_type ||
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T == dwarf::DW_TAG_rvalue_reference_type)
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T == dwarf::DW_TAG_rvalue_reference_type ||
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T == dwarf::DW_TAG_structure_type)
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return true;
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assert(T == dwarf::DW_TAG_typedef || T == dwarf::DW_TAG_const_type ||
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T == dwarf::DW_TAG_volatile_type ||
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118
test/DebugInfo/X86/constant-aggregate.ll
Normal file
118
test/DebugInfo/X86/constant-aggregate.ll
Normal file
@ -0,0 +1,118 @@
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; RUN: llc %s -filetype=obj -o %t.o
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; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s
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; Test emitting a constant for an aggregate type.
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;
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; clang -S -O1 -emit-llvm
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;
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; typedef struct { unsigned i; } S;
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;
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; unsigned foo(S s) {
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; s.i = 1;
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; return s.i;
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; }
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;
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; class C { public: unsigned i; };
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;
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; unsigned foo(C c) {
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; c.i = 2;
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; return c.i;
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; }
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;
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; unsigned bar() {
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; int a[1] = { 3 };
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; return a[0];
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; }
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;
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata] (1)
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; CHECK-NEXT: DW_AT_name {{.*}} "s"
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;
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata] (2)
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; CHECK-NEXT: DW_AT_name {{.*}} "c"
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;
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; CHECK: DW_TAG_variable
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; CHECK-NEXT: DW_AT_const_value [DW_FORM_udata] (3)
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; CHECK-NEXT: DW_AT_name {{.*}} "a"
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; ModuleID = 'sroasplit-4.cpp'
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.10.0"
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; Function Attrs: nounwind readnone ssp uwtable
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define i32 @_Z3foo1S(i32 %s.coerce) #0 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %s.coerce, i64 0, metadata !18, metadata !37), !dbg !38
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tail call void @llvm.dbg.value(metadata i32 1, i64 0, metadata !18, metadata !37), !dbg !38
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ret i32 1, !dbg !39
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}
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; Function Attrs: nounwind readnone ssp uwtable
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define i32 @_Z3foo1C(i32 %c.coerce) #0 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %c.coerce, i64 0, metadata !23, metadata !37), !dbg !40
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tail call void @llvm.dbg.value(metadata i32 2, i64 0, metadata !23, metadata !37), !dbg !40
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ret i32 2, !dbg !41
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}
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; Function Attrs: nounwind readnone ssp uwtable
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define i32 @_Z3barv() #0 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 3, i64 0, metadata !28, metadata !37), !dbg !42
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ret i32 3, !dbg !43
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
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attributes #0 = { nounwind readnone ssp uwtable }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!33, !34, !35}
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!llvm.ident = !{!36}
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!0 = !{!"0x11\004\00clang version 3.6.0 (trunk 225364) (llvm/trunk 225366)\001\00\000\00\001", !1, !2, !3, !11, !2, !2} ; [ DW_TAG_compile_unit ] [/sroasplit-4.cpp] [DW_LANG_C_plus_plus]
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!1 = !{!"sroasplit-4.cpp", !""}
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!2 = !{}
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!3 = !{!4, !8}
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!4 = !{!"0x13\00\001\0032\0032\000\000\000", !1, null, null, !5, null, null, !"_ZTS1S"} ; [ DW_TAG_structure_type ] [line 1, size 32, align 32, offset 0] [def] [from ]
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!5 = !{!6}
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!6 = !{!"0xd\00i\001\0032\0032\000\000", !1, !"_ZTS1S", !7} ; [ DW_TAG_member ] [i] [line 1, size 32, align 32, offset 0] [from unsigned int]
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!7 = !{!"0x24\00unsigned int\000\0032\0032\000\000\007", null, null} ; [ DW_TAG_base_type ] [unsigned int] [line 0, size 32, align 32, offset 0, enc DW_ATE_unsigned]
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!8 = !{!"0x2\00C\008\0032\0032\000\000\000", !1, null, null, !9, null, null, !"_ZTS1C"} ; [ DW_TAG_class_type ] [C] [line 8, size 32, align 32, offset 0] [def] [from ]
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!9 = !{!10}
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!10 = !{!"0xd\00i\008\0032\0032\000\003", !1, !"_ZTS1C", !7} ; [ DW_TAG_member ] [i] [line 8, size 32, align 32, offset 0] [public] [from unsigned int]
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!11 = !{!12, !19, !24}
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!12 = !{!"0x2e\00foo\00foo\00_Z3foo1S\003\000\001\000\000\00256\001\003", !1, !13, !14, null, i32 (i32)* @_Z3foo1S, null, null, !17} ; [ DW_TAG_subprogram ] [line 3] [def] [foo]
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!13 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/sroasplit-4.cpp]
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!14 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !15, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!15 = !{!7, !16}
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!16 = !{!"0x16\00S\001\000\000\000\000", !1, null, !"_ZTS1S"} ; [ DW_TAG_typedef ] [S] [line 1, size 0, align 0, offset 0] [from _ZTS1S]
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!17 = !{!18}
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!18 = !{!"0x101\00s\0016777219\000", !12, !13, !16} ; [ DW_TAG_arg_variable ] [s] [line 3]
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!19 = !{!"0x2e\00foo\00foo\00_Z3foo1C\0010\000\001\000\000\00256\001\0010", !1, !13, !20, null, i32 (i32)* @_Z3foo1C, null, null, !22} ; [ DW_TAG_subprogram ] [line 10] [def] [foo]
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!20 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!21 = !{!7, !"_ZTS1C"}
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!22 = !{!23}
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!23 = !{!"0x101\00c\0016777226\000", !19, !13, !"_ZTS1C"} ; [ DW_TAG_arg_variable ] [c] [line 10]
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!24 = !{!"0x2e\00bar\00bar\00_Z3barv\0015\000\001\000\000\00256\001\0015", !1, !13, !25, null, i32 ()* @_Z3barv, null, null, !27} ; [ DW_TAG_subprogram ] [line 15] [def] [bar]
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!25 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !26, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!26 = !{!7}
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!27 = !{!28}
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!28 = !{!"0x100\00a\0016\000", !24, !13, !29} ; [ DW_TAG_auto_variable ] [a] [line 16]
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!29 = !{!"0x1\00\000\0032\0032\000\000\000", null, null, !30, !31, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 32, align 32, offset 0] [from int]
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!30 = !{!"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]
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!31 = !{!32}
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!32 = !{!"0x21\000\001"} ; [ DW_TAG_subrange_type ] [0, 0]
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!33 = !{i32 2, !"Dwarf Version", i32 2}
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!34 = !{i32 2, !"Debug Info Version", i32 2}
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!35 = !{i32 1, !"PIC Level", i32 2}
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!36 = !{!"clang version 3.6.0 (trunk 225364) (llvm/trunk 225366)"}
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!37 = !{!"0x102"} ; [ DW_TAG_expression ]
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!38 = !{i32 3, i32 16, !12, null}
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!39 = !{i32 5, i32 3, !12, null}
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!40 = !{i32 10, i32 16, !19, null}
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!41 = !{i32 12, i32 3, !19, null}
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!42 = !{i32 16, i32 6, !24, null}
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!43 = !{i32 17, i32 3, !24, null}
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