; REQUIRES: object-emission ; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s ; Generated from the following source compiled with clang++ -gmlt: ; void f1() {} ; void __attribute__((section("__TEXT,__bar"))) f2() {} ; void __attribute__((always_inline)) f3() { f1(); } ; void f4() { f3(); } ; Check that ; * -gmlt includes no DW_TAG_subprograms for subprograms without inlined ; subroutines. ; * yet still produces DW_AT_ranges and a range list in debug_ranges that ; describes those subprograms ; CHECK: DW_TAG_compile_unit ; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000 ; CHECK-NOT: {{DW_TAG|NULL}} ; Omitting the subprograms without inlined subroutines is not possible ; currently on Darwin as dsymutil will drop the whole CU if it has no subprograms ; (which happens with this optimization if there are no inlined subroutines). ; DARWIN: DW_TAG_subprogram ; DARWIN-NOT: DW_TAG ; DARWIN: DW_AT_name {{.*}} "f1" ; DARWIN-NOT: {{DW_TAG|NULL}} ; DARWIN: DW_TAG_subprogram ; DARWIN-NOT: DW_TAG ; DARWIN: DW_AT_name {{.*}} "f2" ; DARWIN-NOT: {{DW_TAG|NULL}} ; DARWIN: DW_TAG_subprogram ; DARWIN-NOT: DW_TAG ; Can't check the abstract_origin value across the DARWIN/CHECK checking and ; ordering, so don't bother - just trust me, it refers to f3 down there. ; DARWIN: DW_AT_abstract_origin ; DARWIN-NOT: {{DW_TAG|NULL}} ; FIXME: Emitting separate abstract definitions is inefficient when we could ; just attach the DW_AT_name to the inlined_subroutine directly. Except that ; would produce many string relocations. Implement string indexing in the ; skeleton CU to address the relocation problem, then remove abstract ; definitions from -gmlt here. ; CHECK: DW_TAG_subprogram ; CHECK-NEXT: DW_AT_name {{.*}} "f3" ; FIXME: We don't really need DW_AT_inline, consumers can ignore this due to ; the absence of high_pc/low_pc/ranges and know that they just need it for ; retrieving the name of a concrete inlined instance ; CHECK-NOT: {{DW_TAG|DW_AT|NULL}} ; Check that we only provide the minimal attributes on a subprogram to save space. ; CHECK: DW_TAG_subprogram ; CHECK-NEXT: DW_AT_low_pc ; CHECK-NEXT: DW_AT_high_pc ; CHECK-NEXT: DW_AT_name ; CHECK-NOT: {{DW_TAG|DW_AT}} ; CHECK: DW_TAG_inlined_subroutine ; As mentioned above - replace DW_AT_abstract_origin with DW_AT_name to save ; space once we have support for string indexing in non-dwo sections ; CHECK-NEXT: DW_AT_abstract_origin {{.*}} "f3" ; CHECK-NEXT: DW_AT_low_pc ; CHECK-NEXT: DW_AT_high_pc ; CHECK-NEXT: DW_AT_call_file ; CHECK-NEXT: DW_AT_call_line ; Make sure we don't have any other subprograms here (subprograms with no ; inlined subroutines are omitted by design to save space) ; CHECK-NOT: {{DW_TAG|DW_AT}} ; CHECK: NULL ; CHECK-NOT: {{DW_TAG|DW_AT}} ; CHECK: NULL ; CHECK: .debug_ranges contents: ; ... some addresses (depends on platform (such as platforms with function ; reordering in the linker), and looks wonky on platforms with zero values ; written in relocation places (dumper needs to be fixed to read the ; relocations rather than interpret that as the end of a range list)) ; CHECK: 00000000 ; Check that we don't emit any pubnames or pubtypes under -gmlt ; CHECK: .debug_pubnames contents: ; CHECK-NOT: Offset ; CHECK: .debug_pubtypes contents: ; CHECK-NOT: Offset ; Function Attrs: nounwind uwtable define void @_Z2f1v() #0 { entry: ret void, !dbg !13 } ; Function Attrs: nounwind uwtable define void @_Z2f2v() #0 section "__TEXT,__bar" { entry: ret void, !dbg !14 } ; Function Attrs: alwaysinline nounwind uwtable define void @_Z2f3v() #1 { entry: call void @_Z2f1v(), !dbg !15 ret void, !dbg !16 } ; Function Attrs: nounwind uwtable define void @_Z2f4v() #0 { entry: call void @_Z2f1v() #2, !dbg !17 ret void, !dbg !19 } 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" } attributes #1 = { alwaysinline 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" } attributes #2 = { nounwind } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!10, !11} !llvm.ident = !{!12} !0 = metadata !{metadata !"0x11\004\00clang version 3.6.0 \000\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/gmlt.cpp] [DW_LANG_C_plus_plus] !1 = metadata !{metadata !"gmlt.cpp", metadata !"/tmp/dbginfo"} !2 = metadata !{} !3 = metadata !{metadata !4, metadata !7, metadata !8, metadata !9} !4 = metadata !{metadata !"0x2e\00f1\00f1\00\001\000\001\000\006\00256\000\001", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f1v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [f1] !5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/gmlt.cpp] !6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] !7 = metadata !{metadata !"0x2e\00f2\00f2\00\002\000\001\000\006\00256\000\002", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f2v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [f2] !8 = metadata !{metadata !"0x2e\00f3\00f3\00\003\000\001\000\006\00256\000\003", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f3v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f3] !9 = metadata !{metadata !"0x2e\00f4\00f4\00\004\000\001\000\006\00256\000\004", metadata !1, metadata !5, metadata !6, null, void ()* @_Z2f4v, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 4] [def] [f4] !10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4} !11 = metadata !{i32 2, metadata !"Debug Info Version", i32 2} !12 = metadata !{metadata !"clang version 3.6.0 "} !13 = metadata !{i32 1, i32 12, metadata !4, null} !14 = metadata !{i32 2, i32 53, metadata !7, null} !15 = metadata !{i32 3, i32 44, metadata !8, null} !16 = metadata !{i32 3, i32 50, metadata !8, null} !17 = metadata !{i32 3, i32 44, metadata !8, metadata !18} !18 = metadata !{i32 4, i32 13, metadata !9, null} !19 = metadata !{i32 4, i32 19, metadata !9, null}