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llvm-mirror/test/Linker/2011-08-04-Metadata.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

35 lines
1.6 KiB
LLVM

; RUN: llvm-link %s %p/2011-08-04-Metadata2.ll -o %t.bc
; RUN: llvm-dis < %t.bc | FileCheck %s
; Test if internal global variable's debug info is merged appropriately or not.
;CHECK: !"0x34\00x\00x\00\002\001\001", !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, i32* @x}
;CHECK: !"0x34\00x\00x\00\001\001\001", !{{[0-9]+}}, !{{[0-9]+}}, !{{[0-9]+}}, i32* @x1}
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-macosx10.7.0"
@x = internal global i32 0, align 4
define void @foo() nounwind uwtable ssp {
entry:
store i32 1, i32* @x, align 4, !dbg !7
ret void, !dbg !7
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!11}
!llvm.dbg.sp = !{!1}
!llvm.dbg.gv = !{!5}
!0 = !{!"0x11\0012\00clang version 3.0 ()\001\00\000\00\000", !9, !4, !4, !10, null, null} ; [ DW_TAG_compile_unit ]
!1 = !{!"0x2e\00foo\00foo\00\003\000\001\000\006\000\000\000", !9, !2, !3, null, void ()* @foo, null, null, null} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 0] [foo]
!2 = !{!"0x29", !9} ; [ DW_TAG_file_type ]
!3 = !{!"0x15\00\000\000\000\000\000\000", !9, !2, null, !4, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!4 = !{null}
!5 = !{!"0x34\00x\00x\00\002\001\001", !0, !2, !6, i32* @x} ; [ DW_TAG_variable ]
!6 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !0} ; [ DW_TAG_base_type ]
!7 = !{i32 3, i32 14, !8, null}
!8 = !{!"0xb\003\0012\000", !9, !1} ; [ DW_TAG_lexical_block ]
!9 = !{!"/tmp/one.c", !"/Volumes/Lalgate/Slate/D"}
!10 = !{!1}
!11 = !{i32 1, !"Debug Info Version", i32 2}