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	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
		
	
		
			
				
	
	
		
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			29 lines
		
	
	
		
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			LLVM
		
	
	
	
	
	
| ; RUN: llc -O0 -filetype=asm -mtriple=armv7-linux-gnuehabi < %s | FileCheck %s
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| ;
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| ; Generated with clang with source
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| ; __thread int x;
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| 
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| @x = thread_local global i32 0, align 4
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| 
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| !llvm.dbg.cu = !{!0}
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| !llvm.module.flags = !{!7, !8}
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| !llvm.ident = !{!9}
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| 
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| ; 6 byte of data
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| ; CHECK: .byte 6 @ DW_AT_location
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| ; DW_OP_const4u
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| ; CHECK: .byte 12
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| ; The debug relocation of the address of the tls variable
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| ; CHECK: .long x(tlsldo)
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| 
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| !0 = !{!"0x11\0012\00clang version 3.5 \000\00\000\00\000", !1, !2, !2, !2, !3, !2} ; [ DW_TAG_compile_unit ] [/tmp/tls.c] [DW_LANG_C99]
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| !1 = !{!"tls.c", !"/tmp"}
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| !2 = !{}
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| !3 = !{!4}
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| !4 = !{!"0x34\00x\00x\00\001\000\001", null, !5, !6, i32* @x, null} ; [ DW_TAG_variable ] [x] [line 1] [def]
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| !5 = !{!"0x29", !1}          ; [ DW_TAG_file_type ] [/tmp/tls.c]
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| !6 = !{!"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]
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| !7 = !{i32 2, !"Dwarf Version", i32 4}
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| !8 = !{i32 1, !"Debug Info Version", i32 2}
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| !9 = !{!"clang version 3.5 "}
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