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llvm-mirror/test/DebugInfo/tu-member-pointer.ll
Duncan P. N. Exon Smith 9c5542c040 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.

llvm-svn: 224257
2014-12-15 19:07:53 +00:00

31 lines
1.4 KiB
LLVM

; REQUIRES: object-emission
; RUN: %llc_dwarf -filetype=obj -O0 < %s > %t
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
; CHECK: DW_TAG_ptr_to_member_type
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE:0x[0-9a-f]+]]})
; CHECK: [[TYPE]]: DW_TAG_base_type
; IR generated from clang -g with the following source:
; struct Foo {
; int e;
; };
; int Foo:*x = 0;
@x = global i64 -1, align 8
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!10, !11}
!0 = !{!"0x11\004\00clang version 3.4\000\00\000\00\000", !1, !2, !3, !2, !5, !2} ; [ DW_TAG_compile_unit ] [foo.cpp] [DW_LANG_C_plus_plus]
!1 = !{!"foo.cpp", !"."}
!2 = !{}
!3 = !{!4}
!4 = !{!"0x13\00Foo\001\000\000\000\004\000", !1, null, null, null, null, null, !"_ZTS3Foo"} ; [ DW_TAG_structure_type ] [Foo] [line 1, size 0, align 0, offset 0] [decl] [from ]
!5 = !{!6}
!6 = !{!"0x34\00x\00x\00\004\000\001", null, !7, !8, i64* @x, null} ; [ DW_TAG_variable ] [x] [line 4] [def]
!7 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [foo.cpp]
!8 = !{!"0x1f\00\000\000\000\000\000", null, null, !9, !"_ZTS3Foo"} ; [ DW_TAG_ptr_to_member_type ] [line 0, size 0, align 0, offset 0] [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 = !{i32 2, !"Dwarf Version", i32 2}
!11 = !{i32 1, !"Debug Info Version", i32 2}