mirror of
https://github.com/c64scene-ar/llvm-6502.git
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991327143f
While refactoring this code I was confused by both the name I had introduced (addNonArgumentVariable... but it has all this logic to handle argument numbering and keep things in order?) and by the redundancy. Seems when I fixed the misordered inlined argument handling, I didn't realize it was mostly redundant with the argument ordering code (which I may've also written, I'm not sure). So let's just rely on the more general case. The only oddity in output this produces is that it means when we emit all the variables for the current function, we don't track when we've finished the argument variables and are about to start the local variables and insert DW_AT_unspecified_parameters (for varargs functions) there. Instead it ends up after the local variables, scopes, etc. But this isn't invalid and doesn't cause DWARF consumers problems that I know of... so we'll just go with that because it makes the code nice & simple. (though, let's see what the buildbots have to say about this - *crosses fingers*) There will be some cleanup commits to follow to remove the now trivial wrappers, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220527 91177308-0d34-0410-b5e6-96231b3b80d8
103 lines
5.1 KiB
LLVM
103 lines
5.1 KiB
LLVM
; RUN: %llc_dwarf -O0 -filetype=obj -o %t.o %s
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; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s
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; REQUIRES: object-emission
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;
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; Test debug info for variadic function arguments.
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; Created from tools/clang/tests/CodeGenCXX/debug-info-varargs.cpp
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;
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; The ... parameter of variadic should be emitted as
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; DW_TAG_unspecified_parameters.
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;
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; Normal variadic function.
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; void b(int c, ...);
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;
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; CHECK: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "a"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_unspecified_parameters
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;
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; CHECK: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_name {{.*}} "b"
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_variable
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_variable
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_unspecified_parameters
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;
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; Variadic C++ member function.
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; struct A { void a(int c, ...); }
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;
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; Variadic function pointer.
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; void (*fptr)(int, ...);
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;
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; CHECK: DW_TAG_subroutine_type
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_unspecified_parameters
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;
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; ModuleID = 'llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp'
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%struct.A = type { i8 }
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; Function Attrs: nounwind ssp uwtable
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define void @_Z1biz(i32 %c, ...) #0 {
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%1 = alloca i32, align 4
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%a = alloca %struct.A, align 1
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%fptr = alloca void (i32, ...)*, align 8
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store i32 %c, i32* %1, align 4
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call void @llvm.dbg.declare(metadata !{i32* %1}, metadata !21, metadata !{metadata !"0x102"}), !dbg !22
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call void @llvm.dbg.declare(metadata !{%struct.A* %a}, metadata !23, metadata !{metadata !"0x102"}), !dbg !24
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call void @llvm.dbg.declare(metadata !{void (i32, ...)** %fptr}, metadata !25, metadata !{metadata !"0x102"}), !dbg !27
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store void (i32, ...)* @_Z1biz, void (i32, ...)** %fptr, align 8, !dbg !27
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ret void, !dbg !28
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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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attributes #0 = { nounwind 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 = !{!18, !19}
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!llvm.ident = !{!20}
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!0 = metadata !{metadata !"0x11\004\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !13, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp] [DW_LANG_C_plus_plus]
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!1 = metadata !{metadata !"llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp", metadata !"radar/13690847"}
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!2 = metadata !{}
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!3 = metadata !{metadata !4}
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!4 = metadata !{metadata !"0x13\00A\003\008\008\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ]
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!5 = metadata !{metadata !6}
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!6 = metadata !{metadata !"0x2e\00a\00a\00_ZN1A1aEiz\006\000\000\000\006\00256\000\006", metadata !1, metadata !"_ZTS1A", metadata !7, null, null, null, i32 0, metadata !12} ; [ DW_TAG_subprogram ] [line 6] [a]
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!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!8 = metadata !{null, metadata !9, metadata !10, null}
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!9 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
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!10 = 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]
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!12 = metadata !{i32 786468}
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!13 = metadata !{metadata !14}
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!14 = metadata !{metadata !"0x2e\00b\00b\00_Z1biz\0013\000\001\000\006\00256\000\0013", metadata !1, metadata !15, metadata !16, null, void (i32, ...)* @_Z1biz, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 13] [def] [b]
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!15 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp]
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!16 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !17, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!17 = metadata !{null, metadata !10, null}
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!18 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
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!19 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
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!20 = metadata !{metadata !"clang version 3.5 "}
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!21 = metadata !{metadata !"0x101\00c\0016777229\000", metadata !14, metadata !15, metadata !10} ; [ DW_TAG_arg_variable ] [c] [line 13]
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!22 = metadata !{i32 13, i32 0, metadata !14, null}
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!23 = metadata !{metadata !"0x100\00a\0016\000", metadata !14, metadata !15, metadata !4} ; [ DW_TAG_auto_variable ] [a] [line 16]
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!24 = metadata !{i32 16, i32 0, metadata !14, null}
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!25 = metadata !{metadata !"0x100\00fptr\0018\000", metadata !14, metadata !15, metadata !26} ; [ DW_TAG_auto_variable ] [fptr] [line 18]
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!26 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
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!27 = metadata !{i32 18, i32 0, metadata !14, null}
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!28 = metadata !{i32 22, i32 0, metadata !14, null}
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