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, 14 insertions, 14 deletions

diff --git a/llvm/test/Transforms/SampleProfile/fnptr.ll b/llvm/test/Transforms/SampleProfile/fnptr.ll
index d86c5c3f7bf..096033bd35f 100644
--- a/llvm/test/Transforms/SampleProfile/fnptr.ll
+++ b/llvm/test/Transforms/SampleProfile/fnptr.ll
@@ -129,27 +129,27 @@ declare i32 @printf(i8* nocapture readonly, ...) #1
 
 !0 = !{i32 2, !"Debug Info Version", i32 2}
 !1 = !{!"clang version 3.6.0 "}
-!2 = !{i32 9, i32 3, !3, null}
+!2 = !MDLocation(line: 9, column: 3, scope: !3)
 !3 = !{!"0x2e\00foo\00foo\00\008\000\001\000\000\00256\001\008", !4, !5, !6, null, double (i32)* @_Z3fooi, null, null, !7} ; [ DW_TAG_subprogram ] [line 8] [def] [foo]
 !4 = !{!"fnptr.cc", !"."}
 !5 = !{!"0x29", !4}    ; [ DW_TAG_file_type ] [./fnptr.cc]
 !6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !7 = !{}
-!8 = !{i32 9, i32 14, !3, null}
-!9 = !{i32 13, i32 3, !10, null}
+!8 = !MDLocation(line: 9, column: 14, scope: !3)
+!9 = !MDLocation(line: 13, column: 3, scope: !10)
 !10 = !{!"0x2e\00bar\00bar\00\0012\000\001\000\000\00256\001\0012", !4, !5, !6, null, double (i32)* @_Z3bari, null, null, !7} ; [ DW_TAG_subprogram ] [line 12] [def] [bar]
-!11 = !{i32 13, i32 14, !10, null}
-!12 = !{i32 19, i32 3, !13, null}
+!11 = !MDLocation(line: 13, column: 14, scope: !10)
+!12 = !MDLocation(line: 19, column: 3, scope: !13)
 !13 = !{!"0x2e\00main\00main\00\0016\000\001\000\000\00256\001\0016", !4, !5, !6, null, i32 ()* @main, null, null, !7} ; [ DW_TAG_subprogram ] [line 16] [def] [main]
-!14 = !{i32 20, i32 5, !13, null}
-!15 = !{i32 21, i32 15, !13, null}
-!16 = !{i32 22, i32 11, !13, null}
+!14 = !MDLocation(line: 20, column: 5, scope: !13)
+!15 = !MDLocation(line: 21, column: 15, scope: !13)
+!16 = !MDLocation(line: 22, column: 11, scope: !13)
 !17 = !{!"branch_weights", i32 534, i32 2064}
-!18 = !{i32 23, i32 14, !13, null}
-!19 = !{i32 25, i32 14, !13, null}
-!20 = !{i32 20, i32 28, !13, null}
+!18 = !MDLocation(line: 23, column: 14, scope: !13)
+!19 = !MDLocation(line: 25, column: 14, scope: !13)
+!20 = !MDLocation(line: 20, column: 28, scope: !13)
 !21 = !{!"branch_weights", i32 0, i32 1075}
-!22 = !{i32 19, i32 26, !13, null}
+!22 = !MDLocation(line: 19, column: 26, scope: !13)
 !23 = !{!"branch_weights", i32 0, i32 534}
-!24 = !{i32 27, i32 3, !13, null}
-!25 = !{i32 28, i32 3, !13, null}
+!24 = !MDLocation(line: 27, column: 3, scope: !13)
+!25 = !MDLocation(line: 28, column: 3, scope: !13)