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, 6 insertions, 6 deletions

diff --git a/llvm/test/Transforms/LoopVectorize/no_switch.ll b/llvm/test/Transforms/LoopVectorize/no_switch.ll
index e301c28393b..64aab37592f 100644
--- a/llvm/test/Transforms/LoopVectorize/no_switch.ll
+++ b/llvm/test/Transforms/LoopVectorize/no_switch.ll
@@ -69,18 +69,18 @@ attributes #0 = { nounwind }
 !7 = !{i32 2, !"Dwarf Version", i32 2}
 !8 = !{i32 2, !"Debug Info Version", i32 2}
 !9 = !{!"clang version 3.5.0"}
-!10 = !{i32 3, i32 8, !11, null}
+!10 = !MDLocation(line: 3, column: 8, scope: !11)
 !11 = !{!"0xb\003\003\000", !1, !4} ; [ DW_TAG_lexical_block ]
 !12 = !{!12, !13, !13}
 !13 = !{!"llvm.loop.vectorize.enable", i1 true}
-!14 = !{i32 4, i32 5, !15, null}
+!14 = !MDLocation(line: 4, column: 5, scope: !15)
 !15 = !{!"0xb\003\0036\000", !1, !11} ; [ DW_TAG_lexical_block ]
 !16 = !{!17, !17, i64 0}
 !17 = !{!"int", !18, i64 0}
 !18 = !{!"omnipotent char", !19, i64 0}
 !19 = !{!"Simple C/C++ TBAA"}
-!20 = !{i32 6, i32 7, !21, null}
+!20 = !MDLocation(line: 6, column: 7, scope: !21)
 !21 = !{!"0xb\004\0018\000", !1, !15} ; [ DW_TAG_lexical_block ]
-!22 = !{i32 7, i32 5, !21, null}
-!23 = !{i32 9, i32 7, !21, null}
-!24 = !{i32 14, i32 1, !4, null}
+!22 = !MDLocation(line: 7, column: 5, scope: !21)
+!23 = !MDLocation(line: 9, column: 7, scope: !21)
+!24 = !MDLocation(line: 14, column: 1, scope: !4)