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, 28 insertions, 28 deletions

diff --git a/llvm/test/DebugInfo/X86/pieces-3.ll b/llvm/test/DebugInfo/X86/pieces-3.ll
index b85b766d992..97ff9aadfcf 100644
--- a/llvm/test/DebugInfo/X86/pieces-3.ll
+++ b/llvm/test/DebugInfo/X86/pieces-3.ll
@@ -67,40 +67,40 @@ attributes #2 = { nounwind }
 !llvm.module.flags = !{!21, !22}
 !llvm.ident = !{!23}
 
-!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
-!1 = !MDFile(filename: "sroasplit-2.c", directory: "")
+!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!1 = !DIFile(filename: "sroasplit-2.c", directory: "")
 !2 = !{}
 !3 = !{!4}
-!4 = !MDSubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 10, file: !1, scope: !5, type: !6, function: i32 (i64, i64)* @foo, variables: !2)
-!5 = !MDFile(filename: "sroasplit-2.c", directory: "")
-!6 = !MDSubroutineType(types: !7)
+!4 = !DISubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 10, file: !1, scope: !5, type: !6, function: i32 (i64, i64)* @foo, variables: !2)
+!5 = !DIFile(filename: "sroasplit-2.c", directory: "")
+!6 = !DISubroutineType(types: !7)
 !7 = !{!8, !9}
-!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!9 = !MDDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
-!10 = !MDCompositeType(tag: DW_TAG_structure_type, line: 6, size: 128, align: 32, file: !1, elements: !11)
+!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
+!10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 128, align: 32, file: !1, elements: !11)
 !11 = !{!12}
-!12 = !MDDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 128, align: 32, file: !1, scope: !10, baseType: !13)
-!13 = !MDCompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !14, elements: !19)
-!14 = !MDDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
-!15 = !MDCompositeType(tag: DW_TAG_structure_type, line: 1, size: 64, align: 32, file: !1, elements: !16)
+!12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 128, align: 32, file: !1, scope: !10, baseType: !13)
+!13 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !14, elements: !19)
+!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
+!15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 64, align: 32, file: !1, elements: !16)
 !16 = !{!17, !18}
-!17 = !MDDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
-!18 = !MDDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 32, align: 32, offset: 32, file: !1, scope: !15, baseType: !8)
+!17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
+!18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 32, align: 32, offset: 32, file: !1, scope: !15, baseType: !8)
 !19 = !{!20}
-!20 = !MDSubrange(count: 2)
+!20 = !DISubrange(count: 2)
 !21 = !{i32 2, !"Dwarf Version", i32 2}
 !22 = !{i32 1, !"Debug Info Version", i32 3}
 !23 = !{!"clang version 3.5.0 "}
-!24 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
-!25 = !MDExpression(DW_OP_bit_piece, 0, 64)
-!26 = !MDLocation(line: 10, scope: !4)
-!27 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
-!28 = !MDExpression(DW_OP_bit_piece, 64, 64)
-!29 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
-!30 = !MDExpression(DW_OP_bit_piece, 96, 32)
-!31 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
-!32 = !MDExpression(DW_OP_bit_piece, 64, 32)
-!33 = !MDLocation(line: 11, scope: !4)
-!34 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "i1", line: 11, scope: !4, file: !5, type: !14)
-!35 = !MDExpression(DW_OP_bit_piece, 0, 32)
-!36 = !MDLocation(line: 12, scope: !4)
+!24 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
+!25 = !DIExpression(DW_OP_bit_piece, 0, 64)
+!26 = !DILocation(line: 10, scope: !4)
+!27 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
+!28 = !DIExpression(DW_OP_bit_piece, 64, 64)
+!29 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
+!30 = !DIExpression(DW_OP_bit_piece, 96, 32)
+!31 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
+!32 = !DIExpression(DW_OP_bit_piece, 64, 32)
+!33 = !DILocation(line: 11, scope: !4)
+!34 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "i1", line: 11, scope: !4, file: !5, type: !14)
+!35 = !DIExpression(DW_OP_bit_piece, 0, 32)
+!36 = !DILocation(line: 12, scope: !4)