llvm-6502/test/DebugInfo/X86/DW_AT_byte_size.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

47 lines
2.1 KiB
LLVM

; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj
; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s
; Checks that we don't emit a size for a pointer type.
; CHECK: DW_TAG_pointer_type
; CHECK-NEXT: DW_AT_type
; CHECK-NOT: DW_AT_byte_size
; CHECK: DW_TAG
; CHECK: .debug_info contents
%struct.A = type { i32 }
define i32 @_Z3fooP1A(%struct.A* %a) nounwind uwtable ssp {
entry:
%a.addr = alloca %struct.A*, align 8
store %struct.A* %a, %struct.A** %a.addr, align 8
call void @llvm.dbg.declare(metadata %struct.A** %a.addr, metadata !16, metadata !{!"0x102"}), !dbg !17
%0 = load %struct.A** %a.addr, align 8, !dbg !18
%b = getelementptr inbounds %struct.A* %0, i32 0, i32 0, !dbg !18
%1 = load i32* %b, align 4, !dbg !18
ret i32 %1, !dbg !18
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!21}
!0 = !{!"0x11\004\00clang version 3.1 (trunk 150996)\000\00\000\00\000", !20, !1, !1, !3, !1, !1} ; [ DW_TAG_compile_unit ]
!1 = !{}
!3 = !{!5}
!5 = !{!"0x2e\00foo\00foo\00_Z3fooP1A\003\000\001\000\006\00256\000\003", !20, !6, !7, null, i32 (%struct.A*)* @_Z3fooP1A, null, null, null} ; [ DW_TAG_subprogram ]
!6 = !{!"0x29", !20} ; [ DW_TAG_file_type ]
!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = !{!9, !10}
!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
!10 = !{!"0xf\00\000\0064\0064\000\000", null, null, !11} ; [ DW_TAG_pointer_type ]
!11 = !{!"0x2\00A\001\0032\0032\000\000\000", !20, null, null, !12, null, null, null} ; [ DW_TAG_class_type ] [A] [line 1, size 32, align 32, offset 0] [def] [from ]
!12 = !{!13}
!13 = !{!"0xd\00b\001\0032\0032\000\000", !20, !11, !9} ; [ DW_TAG_member ]
!16 = !{!"0x101\00a\0016777219\000", !5, !6, !10} ; [ DW_TAG_arg_variable ]
!17 = !{i32 3, i32 13, !5, null}
!18 = !{i32 4, i32 3, !19, null}
!19 = !{!"0xb\003\0016\000", !20, !5} ; [ DW_TAG_lexical_block ]
!20 = !{!"foo.cpp", !"/Users/echristo"}
!21 = !{i32 1, !"Debug Info Version", i32 2}