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, 22 insertions, 22 deletions

diff --git a/llvm/test/DebugInfo/template-recursive-void.ll b/llvm/test/DebugInfo/template-recursive-void.ll
index d33b8daab73..30eaee3f75d 100644
--- a/llvm/test/DebugInfo/template-recursive-void.ll
+++ b/llvm/test/DebugInfo/template-recursive-void.ll
@@ -25,37 +25,37 @@
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!36, !37}
 
-!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 (trunk 187958) (llvm/trunk 187964)", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !2, globals: !3, imports: !2)
-!1 = !MDFile(filename: "debug-info-template-recursive.cpp", directory: "/usr/local/google/home/echristo/tmp")
+!0 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 (trunk 187958) (llvm/trunk 187964)", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !2, globals: !3, imports: !2)
+!1 = !DIFile(filename: "debug-info-template-recursive.cpp", directory: "/usr/local/google/home/echristo/tmp")
 !2 = !{}
 !3 = !{!4}
-!4 = !MDGlobalVariable(name: "filters", line: 10, isLocal: false, isDefinition: true, scope: null, file: !5, type: !6, variable: %class.bar* @filters)
-!5 = !MDFile(filename: "debug-info-template-recursive.cpp", directory: "/usr/local/google/home/echristo/tmp")
-!6 = !MDCompositeType(tag: DW_TAG_class_type, name: "bar", line: 9, size: 8, align: 8, file: !1, elements: !7)
+!4 = !DIGlobalVariable(name: "filters", line: 10, isLocal: false, isDefinition: true, scope: null, file: !5, type: !6, variable: %class.bar* @filters)
+!5 = !DIFile(filename: "debug-info-template-recursive.cpp", directory: "/usr/local/google/home/echristo/tmp")
+!6 = !DICompositeType(tag: DW_TAG_class_type, name: "bar", line: 9, size: 8, align: 8, file: !1, elements: !7)
 !7 = !{!8, !31}
-!8 = !MDDerivedType(tag: DW_TAG_inheritance, scope: !6, baseType: !9)
-!9 = !MDCompositeType(tag: DW_TAG_class_type, name: "foo<void>", line: 5, size: 8, align: 8, file: !1, elements: !10, templateParams: !29)
+!8 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !6, baseType: !9)
+!9 = !DICompositeType(tag: DW_TAG_class_type, name: "foo<void>", line: 5, size: 8, align: 8, file: !1, elements: !10, templateParams: !29)
 !10 = !{!11, !19, !25}
-!11 = !MDDerivedType(tag: DW_TAG_inheritance, scope: !9, baseType: !12)
-!12 = !MDCompositeType(tag: DW_TAG_class_type, name: "base", line: 3, size: 8, align: 8, file: !1, elements: !13)
+!11 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !9, baseType: !12)
+!12 = !DICompositeType(tag: DW_TAG_class_type, name: "base", line: 3, size: 8, align: 8, file: !1, elements: !13)
 !13 = !{!14}
-!14 = !MDSubprogram(name: "base", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !12, type: !15)
-!15 = !MDSubroutineType(types: !16)
+!14 = !DISubprogram(name: "base", line: 3, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !12, type: !15)
+!15 = !DISubroutineType(types: !16)
 !16 = !{null, !17}
-!17 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !12)
-!19 = !MDSubprogram(name: "operator=", linkageName: "_ZN3fooIvEaSES0_", line: 6, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrivate | DIFlagPrototyped, isOptimized: false, scopeLine: 6, file: !1, scope: !9, type: !20)
-!20 = !MDSubroutineType(types: !21)
+!17 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !12)
+!19 = !DISubprogram(name: "operator=", linkageName: "_ZN3fooIvEaSES0_", line: 6, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrivate | DIFlagPrototyped, isOptimized: false, scopeLine: 6, file: !1, scope: !9, type: !20)
+!20 = !DISubroutineType(types: !21)
 !21 = !{null, !22, !23}
-!22 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !9)
-!23 = !MDDerivedType(tag: DW_TAG_const_type, baseType: !9)
-!25 = !MDSubprogram(name: "foo", line: 5, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !9, type: !26)
-!26 = !MDSubroutineType(types: !27)
+!22 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !9)
+!23 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !9)
+!25 = !DISubprogram(name: "foo", line: 5, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !9, type: !26)
+!26 = !DISubroutineType(types: !27)
 !27 = !{null, !22}
 !29 = !{!30}
-!30 = !MDTemplateTypeParameter(name: "T", type: null)
-!31 = !MDSubprogram(name: "bar", line: 9, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 9, file: !1, scope: !6, type: !32)
-!32 = !MDSubroutineType(types: !33)
+!30 = !DITemplateTypeParameter(name: "T", type: null)
+!31 = !DISubprogram(name: "bar", line: 9, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, scopeLine: 9, file: !1, scope: !6, type: !32)
+!32 = !DISubroutineType(types: !33)
 !33 = !{null, !34}
-!34 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !6)
+!34 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !6)
 !36 = !{i32 2, !"Dwarf Version", i32 3}
 !37 = !{i32 1, !"Debug Info Version", i32 3}