IR: Give 'DI' prefix to debug info metadata

Finish off PR23080 by renaming the debug info IR constructs from `MD*`
to `DI*`.  The last of the `DIDescriptor` classes were deleted in
r235356, and the last of the related typedefs removed in r235413, so
this has all baked for about a week.

Note: If you have out-of-tree code (like a frontend), I recommend that
you get everything compiling and tests passing with the *previous*
commit before updating to this one.  It'll be easier to keep track of
what code is using the `DIDescriptor` hierarchy and what you've already
updated, and I think you're extremely unlikely to insert bugs.  YMMV of
course.

Back to *this* commit: I did this using the rename-md-di-nodes.sh
upgrade script I've attached to PR23080 (both code and testcases) and
filtered through clang-format-diff.py.  I edited the tests for
test/Assembler/invalid-generic-debug-node-*.ll by hand since the columns
were off-by-three.  It should work on your out-of-tree testcases (and
code, if you've followed the advice in the previous paragraph).

Some of the tests are in badly named files now (e.g.,
test/Assembler/invalid-mdcompositetype-missing-tag.ll should be
'dicompositetype'); I'll come back and move the files in a follow-up
commit.

llvm-svn: 236120

1 files changed, 17 insertions, 17 deletions

diff --git a/llvm/test/DebugInfo/enum.ll b/llvm/test/DebugInfo/enum.ll
index c706a5ead2e..fd07a92ae41 100644
--- a/llvm/test/DebugInfo/enum.ll
+++ b/llvm/test/DebugInfo/enum.ll
@@ -39,7 +39,7 @@
 define void @_Z4funcv() #0 {
 entry:
   %b = alloca i32, align 4
-  call void @llvm.dbg.declare(metadata i32* %b, metadata !20, metadata !MDExpression()), !dbg !22
+  call void @llvm.dbg.declare(metadata i32* %b, metadata !20, metadata !DIExpression()), !dbg !22
   store i32 0, i32* %b, align 4, !dbg !22
   ret void, !dbg !23
 }
@@ -53,28 +53,28 @@ attributes #1 = { nounwind readnone }
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!19, !24}
 
-!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !11, subprograms: !12, globals: !17, imports: !11)
-!1 = !MDFile(filename: "enum.cpp", directory: "/tmp")
+!0 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !11, subprograms: !12, globals: !17, imports: !11)
+!1 = !DIFile(filename: "enum.cpp", directory: "/tmp")
 !2 = !{!3, !8}
-!3 = !MDCompositeType(tag: DW_TAG_enumeration_type, name: "e1", line: 1, size: 64, align: 64, file: !1, elements: !4)
+!3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e1", line: 1, size: 64, align: 64, file: !1, elements: !4)
 !4 = !{!5, !6, !7}
-!5 = !MDEnumerator(name: "I", value: 0) ; [ DW_TAG_enumerator ] [I :: 0]
-!6 = !MDEnumerator(name: "J", value: 4294967295) ; [ DW_TAG_enumerator ] [J :: 4294967295]
-!7 = !MDEnumerator(name: "K", value: -1152921504606846976) ; [ DW_TAG_enumerator ] [K :: 17293822569102704640]
-!8 = !MDCompositeType(tag: DW_TAG_enumeration_type, name: "e2", line: 2, size: 32, align: 32, file: !1, elements: !9)
+!5 = !DIEnumerator(name: "I", value: 0) ; [ DW_TAG_enumerator ] [I :: 0]
+!6 = !DIEnumerator(name: "J", value: 4294967295) ; [ DW_TAG_enumerator ] [J :: 4294967295]
+!7 = !DIEnumerator(name: "K", value: -1152921504606846976) ; [ DW_TAG_enumerator ] [K :: 17293822569102704640]
+!8 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "e2", line: 2, size: 32, align: 32, file: !1, elements: !9)
 !9 = !{!10}
-!10 = !MDEnumerator(name: "X", value: 0) ; [ DW_TAG_enumerator ] [X :: 0]
+!10 = !DIEnumerator(name: "X", value: 0) ; [ DW_TAG_enumerator ] [X :: 0]
 !11 = !{}
 !12 = !{!13}
-!13 = !MDSubprogram(name: "func", linkageName: "_Z4funcv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !14, type: !15, function: void ()* @_Z4funcv, variables: !11)
-!14 = !MDFile(filename: "enum.cpp", directory: "/tmp")
-!15 = !MDSubroutineType(types: !16)
+!13 = !DISubprogram(name: "func", linkageName: "_Z4funcv", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !14, type: !15, function: void ()* @_Z4funcv, variables: !11)
+!14 = !DIFile(filename: "enum.cpp", directory: "/tmp")
+!15 = !DISubroutineType(types: !16)
 !16 = !{null}
 !17 = !{!18}
-!18 = !MDGlobalVariable(name: "a", line: 1, isLocal: false, isDefinition: true, scope: null, file: !14, type: !3, variable: i64* @a)
+!18 = !DIGlobalVariable(name: "a", line: 1, isLocal: false, isDefinition: true, scope: null, file: !14, type: !3, variable: i64* @a)
 !19 = !{i32 2, !"Dwarf Version", i32 3}
-!20 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 4, scope: !13, file: !14, type: !21)
-!21 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!22 = !MDLocation(line: 4, scope: !13)
-!23 = !MDLocation(line: 5, scope: !13)
+!20 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 4, scope: !13, file: !14, type: !21)
+!21 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!22 = !DILocation(line: 4, scope: !13)
+!23 = !DILocation(line: 5, scope: !13)
 !24 = !{i32 1, !"Debug Info Version", i32 3}