llvm-6502/test/DebugInfo/X86/subreg.ll
Manman Ren 6e3cd0ebe2 Debug Info: add an identifier field to DICompositeType.
DICompositeType will have an identifier field at position 14. For now, the
field is set to null in DIBuilder.
For DICompositeTypes where the template argument field (the 13th field)
was optional, modify DIBuilder to make sure the template argument field is set.
Now DICompositeType has 15 fields.

Update DIBuilder to use NULL instead of "i32 0" for null value of a MDNode.
Update verifier to check that DICompositeType has 15 fields and the last
field is null or a MDString.

Update testing cases to include an extra field for DICompositeType.
The identifier field will be used by type uniquing so a front end can
genearte a DICompositeType with a unique identifer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189282 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-26 22:39:55 +00:00

32 lines
1.8 KiB
LLVM

; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -o - | FileCheck %s
; We are testing that a value in a 16 bit register gets reported as
; being in its superregister.
; FIXME: There should be a DW_OP_bit_piece too.
; CHECK: .byte 80 # DW_OP_reg0
define i16 @f(i16 signext %zzz) nounwind {
entry:
call void @llvm.dbg.value(metadata !{i16 %zzz}, i64 0, metadata !0)
%conv = sext i16 %zzz to i32, !dbg !7
%conv1 = trunc i32 %conv to i16
ret i16 %conv1
}
declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!llvm.dbg.cu = !{!3}
!9 = metadata !{metadata !1}
!0 = metadata !{i32 786689, metadata !1, metadata !"zzz", metadata !2, i32 16777219, metadata !6, i32 0, null} ; [ DW_TAG_arg_variable ]
!1 = metadata !{i32 786478, metadata !10, metadata !2, metadata !"f", metadata !"f", metadata !"", i32 3, metadata !4, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 false, i16 (i16)* @f, null, null, null, i32 3} ; [ DW_TAG_subprogram ]
!2 = metadata !{i32 786473, metadata !10} ; [ DW_TAG_file_type ]
!3 = metadata !{i32 786449, metadata !10, i32 12, metadata !"clang version 3.0 ()", i1 false, metadata !"", i32 0, metadata !5, metadata !5, metadata !9, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
!4 = metadata !{i32 786453, metadata !10, metadata !2, metadata !"", i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !5, i32 0, i32 0, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!5 = metadata !{null}
!6 = metadata !{i32 786468, null, metadata !3, metadata !"short", i32 0, i64 16, i64 16, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
!7 = metadata !{i32 4, i32 22, metadata !8, null}
!8 = metadata !{i32 786443, metadata !10, metadata !1, i32 3, i32 19, i32 0} ; [ DW_TAG_lexical_block ]
!10 = metadata !{metadata !"/home/espindola/llvm/test.c", metadata !"/home/espindola/tmpfs/build"}