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, 37 insertions, 37 deletions

diff --git a/llvm/test/Transforms/Inline/alloca-dbgdeclare.ll b/llvm/test/Transforms/Inline/alloca-dbgdeclare.ll
index 7e649a22863..286f2931ff2 100644
--- a/llvm/test/Transforms/Inline/alloca-dbgdeclare.ll
+++ b/llvm/test/Transforms/Inline/alloca-dbgdeclare.ll
@@ -82,60 +82,60 @@ attributes #3 = { noreturn nounwind }
 !llvm.module.flags = !{!28, !29}
 !llvm.ident = !{!30}
 
-!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 (trunk 227480) (llvm/trunk 227517)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !14, globals: !25, imports: !2)
-!1 = !MDFile(filename: "<stdin>", directory: "")
+!0 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 (trunk 227480) (llvm/trunk 227517)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !14, globals: !25, imports: !2)
+!1 = !DIFile(filename: "<stdin>", directory: "")
 !2 = !{}
 !3 = !{!4}
-!4 = !MDCompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 192, align: 64, file: !5, elements: !6, identifier: "_ZTS1A")
-!5 = !MDFile(filename: "test.cpp", directory: "")
+!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 192, align: 64, file: !5, elements: !6, identifier: "_ZTS1A")
+!5 = !DIFile(filename: "test.cpp", directory: "")
 !6 = !{!7, !9}
-!7 = !MDDerivedType(tag: DW_TAG_member, name: "arg0", line: 2, size: 32, align: 32, file: !5, scope: !"_ZTS1A", baseType: !8)
-!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!9 = !MDDerivedType(tag: DW_TAG_member, name: "arg1", line: 3, size: 128, align: 64, offset: 64, file: !5, scope: !"_ZTS1A", baseType: !10)
-!10 = !MDCompositeType(tag: DW_TAG_array_type, size: 128, align: 64, baseType: !11, elements: !12)
-!11 = !MDBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
+!7 = !DIDerivedType(tag: DW_TAG_member, name: "arg0", line: 2, size: 32, align: 32, file: !5, scope: !"_ZTS1A", baseType: !8)
+!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!9 = !DIDerivedType(tag: DW_TAG_member, name: "arg1", line: 3, size: 128, align: 64, offset: 64, file: !5, scope: !"_ZTS1A", baseType: !10)
+!10 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 64, baseType: !11, elements: !12)
+!11 = !DIBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
 !12 = !{!13}
-!13 = !MDSubrange(count: 2)
+!13 = !DISubrange(count: 2)
 !14 = !{!15, !21, !24}
-!15 = !MDSubprogram(name: "fn3", linkageName: "_Z3fn31A", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !5, scope: !16, type: !17, function: void (%struct.A*)* @_Z3fn31A, variables: !19)
-!16 = !MDFile(filename: "test.cpp", directory: "")
-!17 = !MDSubroutineType(types: !18)
+!15 = !DISubprogram(name: "fn3", linkageName: "_Z3fn31A", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !5, scope: !16, type: !17, function: void (%struct.A*)* @_Z3fn31A, variables: !19)
+!16 = !DIFile(filename: "test.cpp", directory: "")
+!17 = !DISubroutineType(types: !18)
 !18 = !{null, !"_ZTS1A"}
 !19 = !{!20}
-!20 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 6, arg: 1, scope: !15, file: !16, type: !"_ZTS1A")
-!21 = !MDSubprogram(name: "fn4", linkageName: "_Z3fn4v", line: 11, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !5, scope: !16, type: !22, function: void ()* @_Z3fn4v, variables: !2)
-!22 = !MDSubroutineType(types: !23)
+!20 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 6, arg: 1, scope: !15, file: !16, type: !"_ZTS1A")
+!21 = !DISubprogram(name: "fn4", linkageName: "_Z3fn4v", line: 11, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 11, file: !5, scope: !16, type: !22, function: void ()* @_Z3fn4v, variables: !2)
+!22 = !DISubroutineType(types: !23)
 !23 = !{null}
-!24 = !MDSubprogram(name: "fn5", linkageName: "_Z3fn5v", line: 13, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !5, scope: !16, type: !22, function: void ()* @_Z3fn5v, variables: !2)
+!24 = !DISubprogram(name: "fn5", linkageName: "_Z3fn5v", line: 13, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 13, file: !5, scope: !16, type: !22, function: void ()* @_Z3fn5v, variables: !2)
 !25 = !{!26, !27}
-!26 = !MDGlobalVariable(name: "a", line: 4, isLocal: false, isDefinition: true, scope: null, file: !16, type: !"_ZTS1A", variable: %struct.A* @a)
-!27 = !MDGlobalVariable(name: "b", line: 4, isLocal: false, isDefinition: true, scope: null, file: !16, type: !"_ZTS1A", variable: %struct.A* @b)
+!26 = !DIGlobalVariable(name: "a", line: 4, isLocal: false, isDefinition: true, scope: null, file: !16, type: !"_ZTS1A", variable: %struct.A* @a)
+!27 = !DIGlobalVariable(name: "b", line: 4, isLocal: false, isDefinition: true, scope: null, file: !16, type: !"_ZTS1A", variable: %struct.A* @b)
 !28 = !{i32 2, !"Dwarf Version", i32 4}
 !29 = !{i32 2, !"Debug Info Version", i32 3}
 !30 = !{!"clang version 3.7.0 (trunk 227480) (llvm/trunk 227517)"}
-!31 = !MDExpression(DW_OP_deref)
-!32 = !MDLocation(line: 6, scope: !15)
-!33 = !MDLocation(line: 7, scope: !34)
-!34 = distinct !MDLexicalBlock(line: 7, column: 0, file: !5, scope: !15)
+!31 = !DIExpression(DW_OP_deref)
+!32 = !DILocation(line: 6, scope: !15)
+!33 = !DILocation(line: 7, scope: !34)
+!34 = distinct !DILexicalBlock(line: 7, column: 0, file: !5, scope: !15)
 !35 = !{!36, !37, i64 0}
 !36 = !{!"_ZTS1A", !37, i64 0, !38, i64 8}
 !37 = !{!"int", !38, i64 0}
 !38 = !{!"omnipotent char", !39, i64 0}
 !39 = !{!"Simple C/C++ TBAA"}
-!40 = !MDLocation(line: 7, scope: !15)
-!41 = !MDLocation(line: 8, scope: !34)
+!40 = !DILocation(line: 7, scope: !15)
+!41 = !DILocation(line: 8, scope: !34)
 !42 = !{i64 0, i64 4, !43, i64 8, i64 16, !44}
 !43 = !{!37, !37, i64 0}
 !44 = !{!38, !38, i64 0}
-!45 = !MDLocation(line: 9, scope: !15)
-!46 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 6, arg: 1, scope: !15, file: !16, type: !"_ZTS1A")
-!47 = distinct !MDLocation(line: 11, scope: !21)
-!48 = !MDExpression(DW_OP_bit_piece, 32, 160)
-!49 = !MDLocation(line: 6, scope: !15, inlinedAt: !47)
-!50 = !MDLocation(line: 11, scope: !21)
-!51 = !MDExpression(DW_OP_bit_piece, 0, 32)
-!52 = !MDLocation(line: 7, scope: !34, inlinedAt: !47)
-!53 = !MDLocation(line: 7, scope: !15, inlinedAt: !47)
-!54 = !MDLocation(line: 8, scope: !34, inlinedAt: !47)
-!55 = !MDLocation(line: 14, scope: !24)
-!56 = !MDLocation(line: 15, scope: !24)
+!45 = !DILocation(line: 9, scope: !15)
+!46 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "p1", line: 6, arg: 1, scope: !15, file: !16, type: !"_ZTS1A")
+!47 = distinct !DILocation(line: 11, scope: !21)
+!48 = !DIExpression(DW_OP_bit_piece, 32, 160)
+!49 = !DILocation(line: 6, scope: !15, inlinedAt: !47)
+!50 = !DILocation(line: 11, scope: !21)
+!51 = !DIExpression(DW_OP_bit_piece, 0, 32)
+!52 = !DILocation(line: 7, scope: !34, inlinedAt: !47)
+!53 = !DILocation(line: 7, scope: !15, inlinedAt: !47)
+!54 = !DILocation(line: 8, scope: !34, inlinedAt: !47)
+!55 = !DILocation(line: 14, scope: !24)
+!56 = !DILocation(line: 15, scope: !24)