1 ; REQUIRES: object-emission 2 3 ; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s > %t 4 ; RUN: llvm-dwarfdump %t | FileCheck %s 5 6 ; IR generated with `clang++ -g -emit-llvm -S` from the following code: 7 ; template<int x, int*, template<typename> class y, int ...z> int func() { return 3; } 8 ; template<typename> struct y_impl { struct nested { }; }; 9 ; int glbl = func<3, &glbl, y_impl, 1, 2>(); 10 ; y_impl<int>::nested n; 11 12 ; CHECK: [[INT:0x[0-9a-f]*]]:{{ *}}DW_TAG_base_type 13 ; CHECK-NEXT: DW_AT_name{{.*}} = "int" 14 15 ; CHECK: DW_TAG_structure_type 16 ; CHECK-NEXT: DW_AT_name{{.*}}"y_impl<int>" 17 ; CHECK-NOT: NULL 18 ; CHECK: DW_TAG_template_type_parameter 19 20 ; CHECK: DW_AT_name{{.*}}"func<3, &glbl, y_impl, 1, 2>" 21 ; CHECK-NOT: NULL 22 ; CHECK: DW_TAG_template_value_parameter 23 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 24 ; CHECK-NEXT: DW_AT_name{{.*}}= "x" 25 26 ; This could be made shorter by encoding it as _sdata rather than data4, or 27 ; even as data1. DWARF strongly urges implementations to prefer 28 ; _sdata/_udata rather than dataN 29 30 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(3) 31 32 ; CHECK: DW_TAG_template_value_parameter 33 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INTPTR:0x[0-9a-f]*]]} 34 35 ; The address of the global 'glbl', followed by DW_OP_stack_value (9f), to use 36 ; the value immediately, rather than indirecting through the address. 37 38 ; CHECK-NEXT: DW_AT_location [DW_FORM_exprloc]{{ *}}(<0xa> 03 00 00 00 00 00 00 00 00 9f ) 39 ; CHECK-NOT: NULL 40 41 ; CHECK: DW_TAG_GNU_template_template_param 42 ; CHECK-NEXT: DW_AT_name{{.*}}= "y" 43 ; CHECK-NEXT: DW_AT_GNU_template_name{{.*}}= "y_impl" 44 ; CHECK-NOT: NULL 45 46 ; CHECK: DW_TAG_GNU_template_parameter_pack 47 ; CHECK-NOT: NULL 48 ; CHECK: DW_TAG_template_value_parameter 49 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 50 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(1) 51 ; CHECK-NOT: NULL 52 ; CHECK: DW_TAG_template_value_parameter 53 ; CHECK-NEXT: DW_AT_type{{.*}}=> {[[INT]]} 54 ; CHECK-NEXT: DW_AT_const_value [DW_FORM_sdata]{{.*}}(2) 55 56 ; CHECK: [[INTPTR]]:{{ *}}DW_TAG_pointer_type 57 ; CHECK-NEXT: DW_AT_type{{.*}} => {[[INT]]} 58 59 %"struct.y_impl<int>::nested" = type { i8 } 60 61 @glbl = global i32 0, align 4 62 @n = global %"struct.y_impl<int>::nested" zeroinitializer, align 1 63 @llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }] 64 65 define internal void @__cxx_global_var_init() section ".text.startup" { 66 entry: 67 %call = call i32 @_Z4funcILi3EXadL_Z4glblEE6y_implJLi1ELi2EEEiv(), !dbg !33 68 store i32 %call, i32* @glbl, align 4, !dbg !33 69 ret void, !dbg !33 70 } 71 72 ; Function Attrs: nounwind uwtable 73 define linkonce_odr i32 @_Z4funcILi3EXadL_Z4glblEE6y_implJLi1ELi2EEEiv() #0 { 74 entry: 75 ret i32 3, !dbg !34 76 } 77 78 define internal void @_GLOBAL__I_a() section ".text.startup" { 79 entry: 80 call void @__cxx_global_var_init(), !dbg !35 81 ret void, !dbg !35 82 } 83 84 attributes #0 = { nounwind 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" } 85 86 !llvm.dbg.cu = !{!0} 87 !llvm.module.flags = !{!31, !36} 88 !llvm.ident = !{!32} 89 90 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 (trunk 192849) (llvm/trunk 192850)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !9, metadata !28, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/tmp/bar.cpp] [DW_LANG_C_plus_plus] 91 !1 = metadata !{metadata !"bar.cpp", metadata !"/usr/local/google/home/echristo/tmp"} 92 !2 = metadata !{} 93 !3 = metadata !{metadata !4, metadata !8} 94 !4 = metadata !{i32 786451, metadata !1, null, metadata !"y_impl<int>", i32 2, i64 8, i64 8, i32 0, i32 0, null, metadata !2, i32 0, null, metadata !5, metadata !"_ZTS6y_implIiE"} ; [ DW_TAG_structure_type ] [y_impl<int>] [line 2, size 8, align 8, offset 0] [def] [from ] 95 !5 = metadata !{metadata !6} 96 !6 = metadata !{i32 786479, null, metadata !"", metadata !7, null, i32 0, i32 0} ; [ DW_TAG_template_type_parameter ] 97 !7 = 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] 98 !8 = metadata !{i32 786451, metadata !1, metadata !"_ZTS6y_implIiE", metadata !"nested", i32 2, i64 8, i64 8, i32 0, i32 0, null, metadata !2, i32 0, null, null, metadata !"_ZTSN6y_implIiE6nestedE"} ; [ DW_TAG_structure_type ] [nested] [line 2, size 8, align 8, offset 0] [def] [from ] 99 !9 = metadata !{metadata !10, metadata !14, metadata !26} 100 !10 = metadata !{i32 786478, metadata !1, metadata !11, metadata !"__cxx_global_var_init", metadata !"__cxx_global_var_init", metadata !"", i32 3, metadata !12, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @__cxx_global_var_init, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [local] [def] [__cxx_global_var_init] 101 !11 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/tmp/bar.cpp] 102 !12 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !13, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 103 !13 = metadata !{null} 104 !14 = metadata !{i32 786478, metadata !1, metadata !11, metadata !"func<3, &glbl, y_impl, 1, 2>", metadata !"func<3, &glbl, y_impl, 1, 2>", metadata !"_Z4funcILi3EXadL_Z4glblEE6y_implJLi1ELi2EEEiv", i32 1, metadata !15, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_Z4funcILi3EXadL_Z4glblEE6y_implJLi1ELi2EEEiv, metadata !17, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [func<3, &glbl, y_impl, 1, 2>] 105 !15 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !16, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 106 !16 = metadata !{metadata !7} 107 !17 = metadata !{metadata !18, metadata !19, metadata !21, metadata !22} 108 !18 = metadata !{i32 786480, null, metadata !"x", metadata !7, i32 3, null, i32 0, i32 0} ; [ DW_TAG_template_value_parameter ] 109 !19 = metadata !{i32 786480, null, metadata !"", metadata !20, i32* @glbl, null, i32 0, i32 0} ; [ DW_TAG_template_value_parameter ] 110 !20 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !7} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int] 111 !21 = metadata !{i32 803078, null, metadata !"y", null, metadata !"y_impl", null, i32 0, i32 0} ; [ DW_TAG_GNU_template_template_param ] 112 !22 = metadata !{i32 803079, null, metadata !"z", null, metadata !23, null, i32 0, i32 0} ; [ DW_TAG_GNU_template_parameter_pack ] 113 !23 = metadata !{metadata !24, metadata !25} 114 !24 = metadata !{i32 786480, null, metadata !"", metadata !7, i32 1, null, i32 0, i32 0} ; [ DW_TAG_template_value_parameter ] 115 !25 = metadata !{i32 786480, null, metadata !"", metadata !7, i32 2, null, i32 0, i32 0} ; [ DW_TAG_template_value_parameter ] 116 !26 = metadata !{i32 786478, metadata !1, metadata !11, metadata !"", metadata !"", metadata !"_GLOBAL__I_a", i32 1, metadata !27, i1 true, i1 true, i32 0, i32 0, null, i32 64, i1 false, void ()* @_GLOBAL__I_a, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [local] [def] 117 !27 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !2, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 118 !28 = metadata !{metadata !29, metadata !30} 119 !29 = metadata !{i32 786484, i32 0, null, metadata !"glbl", metadata !"glbl", metadata !"", metadata !11, i32 3, metadata !7, i32 0, i32 1, i32* @glbl, null} ; [ DW_TAG_variable ] [glbl] [line 3] [def] 120 !30 = metadata !{i32 786484, i32 0, null, metadata !"n", metadata !"n", metadata !"", metadata !11, i32 4, metadata !8, i32 0, i32 1, %"struct.y_impl<int>::nested"* @n, null} ; [ DW_TAG_variable ] [n] [line 4] [def] 121 !31 = metadata !{i32 2, metadata !"Dwarf Version", i32 4} 122 !32 = metadata !{metadata !"clang version 3.4 (trunk 192849) (llvm/trunk 192850)"} 123 !33 = metadata !{i32 3, i32 0, metadata !10, null} 124 !34 = metadata !{i32 1, i32 0, metadata !14, null} 125 !35 = metadata !{i32 1, i32 0, metadata !26, null} 126 !36 = metadata !{i32 1, metadata !"Debug Info Version", i32 1} 127
