llvm-6502/test/DebugInfo/X86/data_member_location.ll
Duncan P. N. Exon Smith 1ef70ff39b IR: Make metadata typeless in assembly
Now that `Metadata` is typeless, reflect that in the assembly.  These
are the matching assembly changes for the metadata/value split in
r223802.

  - Only use the `metadata` type when referencing metadata from a call
    intrinsic -- i.e., only when it's used as a `Value`.

  - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
    when referencing it from call intrinsics.

So, assembly like this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata !{i32 %v}, metadata !0)
      call void @llvm.foo(metadata !{i32 7}, metadata !0)
      call void @llvm.foo(metadata !1, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{metadata !3}, metadata !0)
      ret void, !bar !2
    }
    !0 = metadata !{metadata !2}
    !1 = metadata !{i32* @global}
    !2 = metadata !{metadata !3}
    !3 = metadata !{}

turns into this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata i32 %v, metadata !0)
      call void @llvm.foo(metadata i32 7, metadata !0)
      call void @llvm.foo(metadata i32* @global, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{!3}, metadata !0)
      ret void, !bar !2
    }
    !0 = !{!2}
    !1 = !{i32* @global}
    !2 = !{!3}
    !3 = !{}

I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines).  I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.

This is part of PR21532.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-15 19:07:53 +00:00

54 lines
2.2 KiB
LLVM

; RUN: llc -mtriple=x86_64-linux -O0 -o - -filetype=obj < %s | llvm-dwarfdump -debug-dump=info -| FileCheck %s
; RUN: llc -mtriple=x86_64-linux -dwarf-version=2 -O0 -o - -filetype=obj < %s | llvm-dwarfdump -debug-dump=info -| FileCheck -check-prefix=DWARF2 %s
; Generated from Clang with the following source:
;
; struct foo {
; char c;
; int i;
; };
;
; foo f;
; CHECK: DW_AT_name {{.*}} "c"
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_data_member_location {{.*}} (0x00)
; CHECK: DW_AT_name {{.*}} "i"
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_data_member_location {{.*}} (0x04)
; DWARF2: DW_AT_name {{.*}} "c"
; DWARF2-NOT: DW_TAG
; DWARF2: DW_AT_data_member_location {{.*}} (<0x02> 23 00 )
; DWARF2: DW_AT_name {{.*}} "i"
; DWARF2-NOT: DW_TAG
; DWARF2: DW_AT_data_member_location {{.*}} (<0x02> 23 04 )
%struct.foo = type { i8, i32 }
@f = global %struct.foo zeroinitializer, align 4
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!13, !15}
!llvm.ident = !{!14}
!0 = !{!"0x11\004\00clang version 3.4 \000\00\000\00\000", !1, !2, !3, !2, !10, !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/data_member_location.cpp] [DW_LANG_C_plus_plus]
!1 = !{!"data_member_location.cpp", !"/tmp/dbginfo"}
!2 = !{}
!3 = !{!4}
!4 = !{!"0x13\00foo\001\0064\0032\000\000\000", !1, null, null, !5, null, null, !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 1, size 64, align 32, offset 0] [def] [from ]
!5 = !{!6, !8}
!6 = !{!"0xd\00c\002\008\008\000\000", !1, !"_ZTS3foo", !7} ; [ DW_TAG_member ] [c] [line 2, size 8, align 8, offset 0] [from char]
!7 = !{!"0x24\00char\000\008\008\000\000\006", null, null} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
!8 = !{!"0xd\00i\003\0032\0032\0032\000", !1, !"_ZTS3foo", !9} ; [ DW_TAG_member ] [i] [line 3, size 32, align 32, offset 32] [from int]
!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!10 = !{!11}
!11 = !{!"0x34\00f\00f\00\006\000\001", null, !12, !4, %struct.foo* @f, null} ; [ DW_TAG_variable ] [f] [line 6] [def]
!12 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/data_member_location.cpp]
!13 = !{i32 2, !"Dwarf Version", i32 4}
!14 = !{!"clang version 3.4 "}
!15 = !{i32 1, !"Debug Info Version", i32 2}