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, 9 insertions, 9 deletions

diff --git a/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll b/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll
index a4f92ec6a4b..7ea5665a7a9 100644
--- a/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll
+++ b/llvm/test/CodeGen/ARM/debug-segmented-stacks.ll
@@ -52,7 +52,7 @@ define void @test_basic() #0 {
 !10 = !{i32 1, !"Debug Info Version", i32 2}
 !11 = !{!"clang version 3.5 "}
 !12 = !{!"0x101\00count\0016777221\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [count] [line 5]
-!13 = !{i32 5, i32 0, !4, null}
+!13 = !MDLocation(line: 5, scope: !4)
 !14 = !{!"0x100\00vl\006\000", !4, !5, !15} ; [ DW_TAG_auto_variable ] [vl] [line 6]
 !15 = !{!"0x16\00va_list\0030\000\000\000\000", !16, null, !17} ; [ DW_TAG_typedef ] [va_list] [line 30, size 0, align 0, offset 0] [from __builtin_va_list]
 !16 = !{!"/linux-x86_64-high/gcc_4.7.2/dbg/llvm/bin/../lib/clang/3.5/include/stdarg.h", !"/tmp"}
@@ -61,18 +61,18 @@ define void @test_basic() #0 {
 !19 = !{!20}
 !20 = !{!"0xd\00__ap\006\0032\0032\000\000", !1, !18, !21} ; [ DW_TAG_member ] [__ap] [line 6, size 32, align 32, offset 0] [from ]
 !21 = !{!"0xf\00\000\0032\0032\000\000", null, null, null} ; [ DW_TAG_pointer_type ] [line 0, size 32, align 32, offset 0] [from ]
-!22 = !{i32 6, i32 0, !4, null}
-!23 = !{i32 7, i32 0, !4, null}
+!22 = !MDLocation(line: 6, scope: !4)
+!23 = !MDLocation(line: 7, scope: !4)
 !24 = !{!"0x100\00test_basic\008\000", !4, !5, !8} ; [ DW_TAG_auto_variable ] [sum] [line 8]
-!25 = !{i32 8, i32 0, !4, null}
+!25 = !MDLocation(line: 8, scope: !4)
 !26 = !{!"0x100\00i\009\000", !27, !5, !8} ; [ DW_TAG_auto_variable ] [i] [line 9]
 !27 = !{!"0xb\009\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [/tmp/var.c]
-!28 = !{i32 9, i32 0, !27, null}
-!29 = !{i32 10, i32 0, !30, null}
+!28 = !MDLocation(line: 9, scope: !27)
+!29 = !MDLocation(line: 10, scope: !30)
 !30 = !{!"0xb\009\000\001", !1, !27} ; [ DW_TAG_lexical_block ] [/tmp/var.c]
-!31 = !{i32 11, i32 0, !30, null}
-!32 = !{i32 12, i32 0, !4, null}
-!33 = !{i32 13, i32 0, !4, null}
+!31 = !MDLocation(line: 11, scope: !30)
+!32 = !MDLocation(line: 12, scope: !4)
+!33 = !MDLocation(line: 13, scope: !4)
 
 ; Just to prevent the alloca from being optimized away
 declare void @dummy_use(i32*, i32)