IR: Move MDLocation into place

This commit moves `MDLocation`, finishing off PR21433.  There's an
accompanying clang commit for frontend testcases.  I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.

This changes the schema for `DebugLoc` and `DILocation` from:

    !{i32 3, i32 7, !7, !8}

to:

    !MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)

Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.

llvm-svn: 226048

1 files changed, 11 insertions, 11 deletions

diff --git a/llvm/test/DebugInfo/X86/dbg-value-inlined-parameter.ll b/llvm/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
index dd446448914..31833a8edf5 100644
--- a/llvm/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
+++ b/llvm/test/DebugInfo/X86/dbg-value-inlined-parameter.ll
@@ -94,21 +94,21 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !17 = !{!"0xd\00nums\003\0032\0032\0064\000", !42, !1, !5} ; [ DW_TAG_member ]
 !18 = !{!"0x101\00nums\0033554439\000", !0, !1, !5, !32} ; [ DW_TAG_arg_variable ]
 !19 = !{!"0x34\00p\00p\00\0014\000\001", !2, !1, !11, %struct.S1* @p, null} ; [ DW_TAG_variable ]
-!20 = !{i32 7, i32 13, !0, null}
-!21 = !{i32 7, i32 21, !0, null}
-!22 = !{i32 9, i32 3, !23, null}
+!20 = !MDLocation(line: 7, column: 13, scope: !0)
+!21 = !MDLocation(line: 7, column: 21, scope: !0)
+!22 = !MDLocation(line: 9, column: 3, scope: !23)
 !23 = !{!"0xb\008\001\000", !1, !0} ; [ DW_TAG_lexical_block ]
-!27 = !{i32 10, i32 3, !23, null}
-!29 = !{i32 11, i32 3, !23, null}
+!27 = !MDLocation(line: 10, column: 3, scope: !23)
+!29 = !MDLocation(line: 11, column: 3, scope: !23)
 !30 = !{%struct.S1* @p}
-!31 = !{i32 7, i32 13, !0, !32}
-!32 = !{i32 16, i32 3, !33, null}
+!31 = !MDLocation(line: 7, column: 13, scope: !0, inlinedAt: !32)
+!32 = !MDLocation(line: 16, column: 3, scope: !33)
 !33 = !{!"0xb\0015\0015\001", !1, !6} ; [ DW_TAG_lexical_block ]
 !34 = !{i32 1}
-!35 = !{i32 7, i32 21, !0, !32}
-!36 = !{i32 9, i32 3, !23, !32}
-!37 = !{i32 10, i32 3, !23, !32}
-!38 = !{i32 17, i32 1, !33, null}
+!35 = !MDLocation(line: 7, column: 21, scope: !0, inlinedAt: !32)
+!36 = !MDLocation(line: 9, column: 3, scope: !23, inlinedAt: !32)
+!37 = !MDLocation(line: 10, column: 3, scope: !23, inlinedAt: !32)
+!38 = !MDLocation(line: 17, column: 1, scope: !33)
 !39 = !{!0, !6}
 !40 = !{!19}
 !41 = !{!9, !18}