| ; RUN: %llc_dwarf -O0 -filetype=obj -o %t.o %s |
| ; RUN: llvm-dwarfdump -debug-dump=info %t.o | FileCheck %s |
| ; REQUIRES: object-emission |
| ; |
| ; Test debug info for variadic function arguments. |
| ; Created from tools/clang/tests/CodeGenCXX/debug-info-varargs.cpp |
| ; |
| ; The ... parameter of variadic should be emitted as |
| ; DW_TAG_unspecified_parameters. |
| ; |
| ; Normal variadic function. |
| ; void b(int c, ...); |
| ; |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name {{.*}} "a" |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_unspecified_parameters |
| ; |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name {{.*}} "b" |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_variable |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_variable |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_unspecified_parameters |
| ; |
| ; Variadic C++ member function. |
| ; struct A { void a(int c, ...); } |
| ; |
| ; Variadic function pointer. |
| ; void (*fptr)(int, ...); |
| ; |
| ; CHECK: DW_TAG_subroutine_type |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_formal_parameter |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_unspecified_parameters |
| ; |
| ; ModuleID = 'llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp' |
| |
| %struct.A = type { i8 } |
| |
| ; Function Attrs: nounwind ssp uwtable |
| define void @_Z1biz(i32 %c, ...) #0 { |
| %1 = alloca i32, align 4 |
| %a = alloca %struct.A, align 1 |
| %fptr = alloca void (i32, ...)*, align 8 |
| store i32 %c, i32* %1, align 4 |
| call void @llvm.dbg.declare(metadata i32* %1, metadata !21, metadata !{!"0x102"}), !dbg !22 |
| call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !23, metadata !{!"0x102"}), !dbg !24 |
| call void @llvm.dbg.declare(metadata void (i32, ...)** %fptr, metadata !25, metadata !{!"0x102"}), !dbg !27 |
| store void (i32, ...)* @_Z1biz, void (i32, ...)** %fptr, align 8, !dbg !27 |
| ret void, !dbg !28 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind ssp uwtable } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!18, !19} |
| !llvm.ident = !{!20} |
| |
| !0 = !{!"0x11\004\00clang version 3.5 \000\00\000\00\000", !1, !2, !3, !13, !2, !2} ; [ DW_TAG_compile_unit ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp] [DW_LANG_C_plus_plus] |
| !1 = !{!"llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp", !"radar/13690847"} |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !{!"0x13\00A\003\008\008\000\000\000", !1, null, null, !5, null, null, !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 3, size 8, align 8, offset 0] [def] [from ] |
| !5 = !{!6} |
| !6 = !{!"0x2e\00a\00a\00_ZN1A1aEiz\006\000\000\000\006\00256\000\006", !1, !"_ZTS1A", !7, null, null, null, i32 0, !12} ; [ DW_TAG_subprogram ] [line 6] [a] |
| !7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !8 = !{null, !9, !10, null} |
| !9 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A] |
| !10 = !{!"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] |
| !12 = !{i32 786468} |
| !13 = !{!14} |
| !14 = !{!"0x2e\00b\00b\00_Z1biz\0013\000\001\000\006\00256\000\0013", !1, !15, !16, null, void (i32, ...)* @_Z1biz, null, null, !2} ; [ DW_TAG_subprogram ] [line 13] [def] [b] |
| !15 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [llvm/tools/clang/test/CodeGenCXX/debug-info-varargs.cpp] |
| !16 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !17, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] |
| !17 = !{null, !10, null} |
| !18 = !{i32 2, !"Dwarf Version", i32 2} |
| !19 = !{i32 1, !"Debug Info Version", i32 2} |
| !20 = !{!"clang version 3.5 "} |
| !21 = !{!"0x101\00c\0016777229\000", !14, !15, !10} ; [ DW_TAG_arg_variable ] [c] [line 13] |
| !22 = !MDLocation(line: 13, scope: !14) |
| !23 = !{!"0x100\00a\0016\000", !14, !15, !4} ; [ DW_TAG_auto_variable ] [a] [line 16] |
| !24 = !MDLocation(line: 16, scope: !14) |
| !25 = !{!"0x100\00fptr\0018\000", !14, !15, !26} ; [ DW_TAG_auto_variable ] [fptr] [line 18] |
| !26 = !{!"0xf\00\000\0064\0064\000\000", null, null, !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ] |
| !27 = !MDLocation(line: 18, scope: !14) |
| !28 = !MDLocation(line: 22, scope: !14) |