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llvm-mirror/test/DebugInfo/X86/dwarf-pubnames-split.ll
David Blaikie 8ad792d2de Move Split DWARF handling to an MC option/command line argument rather than using metadata
Since Split DWARF needs to name the actual .dwo file that is generated,
it can't be known at the time the llvm::Module is produced as it may be
merged with other Modules before the object is generated and that object
may be generated with any name.

By passing the Split DWARF file name when LLVM is producing object code
the .dwo file name in the object file can match correctly.

The support for Split DWARF for implicit modules remains the same -
using metadata to store the dwo name and dwo id so that potentially
multiple skeleton CUs referring to different dwo files can be generated
from one llvm::Module.

llvm-svn: 301062
2017-04-21 23:35:26 +00:00

38 lines
1.7 KiB
LLVM

; RUN: llc -mtriple=x86_64-pc-linux-gnu -split-dwarf-file=foo.dwo %s -o - | FileCheck %s
; Derived from:
; int main (void) {
; return 0;
; }
; Check that we get a symbol off of the debug_info section when using split dwarf and pubnames.
; CHECK: .LpubTypes_begin0:
; CHECK-NEXT: .short 2 # DWARF Version
; CHECK-NEXT: .long .Lcu_begin0 # Offset of Compilation Unit Info
; Function Attrs: nounwind uwtable
define i32 @main() #0 !dbg !4 {
entry:
%retval = alloca i32, align 4
store i32 0, i32* %retval
ret i32 0, !dbg !10
}
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" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !11}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 189287) (llvm/trunk 189296)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "foo.c", directory: "/usr/local/google/home/echristo/tmp")
!2 = !{}
!4 = distinct !DISubprogram(name: "main", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
!5 = !DIFile(filename: "foo.c", directory: "/usr/local/google/home/echristo/tmp")
!6 = !DISubroutineType(types: !7)
!7 = !{!8}
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !{i32 2, !"Dwarf Version", i32 3}
!10 = !DILocation(line: 2, scope: !4)
!11 = !{i32 1, !"Debug Info Version", i32 3}