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f435a2459a
In cases where the debugger load time is a worthwhile tradeoff (or less costly - such as loading from a DWP instead of a variety of DWOs (possibly over a high-latency/distributed filesystem)) against object file size, it can be reasonable to disable pubnames and corresponding gdb-index creation in the linker. A backend-flag version of this was implemented for NVPTX in D44385/r327994 - which was fine for NVPTX which wouldn't mix-and-match CUs. Now that it's going to be a user-facing option (likely powered by "-gno-pubnames", the same as GCC) it should be encoded in the DICompileUnit so it can vary per-CU. After this, likely the NVPTX support should be migrated to the metadata & the previous flag implementation should be removed. Reviewers: aprantl Differential Revision: https://reviews.llvm.org/D50213 llvm-svn: 339939
62 lines
3.2 KiB
LLVM
62 lines
3.2 KiB
LLVM
; RUN: sed -e 's/nameTableKind: Default/nameTableKind: GNU/' %s | llc -mtriple=x86_64-pc-linux-gnu -filetype=obj | llvm-dwarfdump -v - | FileCheck --check-prefix=GPUB %s
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; RUN: llc -mtriple=x86_64-pc-linux-gnu -filetype=obj < %s | llvm-dwarfdump -v - | FileCheck --check-prefix=NONE %s
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; Generated from:
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; void f1();
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; inline __attribute__((always_inline)) void f2() {
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; f1();
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; }
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; void f3() {
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; f2();
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; }
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; $ clang++ -gmlt %s -emit-llvm -S
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; GPUB: Compile Unit
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; GPUB: DW_AT_GNU_pubnames
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; GPUB: .debug_gnu_pubnames contents:
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; GPUB-NEXT: unit_offset = 0x00000000
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; GPUB-NEXT: Name
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; GPUB-NEXT: "f2"
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; GPUB-NEXT: "f3"
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; GPUB: .debug_gnu_pubtypes contents:
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; GPUB-NEXT: length = 0x0000000e version = 0x0002 unit_offset = 0x00000000
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; GPUB-NEXT: Name
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; NONE-NOT: .debug_pubnames contents:
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; NONE-NOT: .debug_pubtypes contents:
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; NONE-NOT: .debug_gnu_pubnames contents:
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; NONE-NOT: .debug_gnu_pubtypes contents:
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; Function Attrs: noinline uwtable
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define void @_Z2f3v() #0 !dbg !7 {
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entry:
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call void @_Z2f1v(), !dbg !9
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ret void, !dbg !12
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}
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declare void @_Z2f1v() #1
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attributes #0 = { noinline uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "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" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 303768) (llvm/trunk 303774)", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, nameTableKind: Default)
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!1 = !DIFile(filename: "gnu-public-names-gmlt.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 5.0.0 (trunk 303768) (llvm/trunk 303774)"}
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!7 = distinct !DISubprogram(name: "f3", scope: !1, file: !1, line: 5, type: !8, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !2)
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!9 = !DILocation(line: 3, column: 3, scope: !10, inlinedAt: !11)
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!10 = distinct !DISubprogram(name: "f2", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!11 = distinct !DILocation(line: 6, column: 3, scope: !7)
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!12 = !DILocation(line: 7, column: 1, scope: !7)
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