From be7ea19b585dc1b0d4c4358df3ca498ceb65b969 Mon Sep 17 00:00:00 2001
From: "Duncan P. N. Exon Smith" <dexonsmith@apple.com>
Date: Mon, 15 Dec 2014 19:07:53 +0000
Subject: 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
---
 llvm/test/CodeGen/ARM/stackpointer.ll | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/test/CodeGen/ARM/stackpointer.ll')

diff --git a/llvm/test/CodeGen/ARM/stackpointer.ll b/llvm/test/CodeGen/ARM/stackpointer.ll
index 420a9166d79..320f0d945bf 100644
--- a/llvm/test/CodeGen/ARM/stackpointer.ll
+++ b/llvm/test/CodeGen/ARM/stackpointer.ll
@@ -22,4 +22,4 @@ declare void @llvm.write_register.i32(metadata, i32) nounwind
 
 ; register unsigned long current_stack_pointer asm("sp");
 ; CHECK-NOT: .asciz  "sp"
-!0 = metadata !{metadata !"sp\00"}
+!0 = !{!"sp\00"}
-- 
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