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

3 files changed, 47 insertions, 47 deletions

diff --git a/llvm/test/DebugInfo/Mips/InlinedFnLocalVar.ll b/llvm/test/DebugInfo/Mips/InlinedFnLocalVar.ll
index 48344a95f40..2badeba2f57 100644
--- a/llvm/test/DebugInfo/Mips/InlinedFnLocalVar.ll
+++ b/llvm/test/DebugInfo/Mips/InlinedFnLocalVar.ll
@@ -15,8 +15,8 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 define i32 @bar() nounwind ssp {
 entry:
   %0 = load i32, i32* @i, align 4, !dbg !17            ; <i32> [#uses=2]
-  tail call void @llvm.dbg.value(metadata i32 %0, i64 0, metadata !59, metadata !MDExpression()), !dbg !19
-  tail call void @llvm.dbg.declare(metadata !29, metadata !60, metadata !MDExpression()), !dbg !21
+  tail call void @llvm.dbg.value(metadata i32 %0, i64 0, metadata !59, metadata !DIExpression()), !dbg !19
+  tail call void @llvm.dbg.declare(metadata !29, metadata !60, metadata !DIExpression()), !dbg !21
   %1 = mul nsw i32 %0, %0, !dbg !22               ; <i32> [#uses=2]
   store i32 %1, i32* @i, align 4, !dbg !17
   ret i32 %1, !dbg !23
@@ -25,37 +25,37 @@ entry:
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!28}
 
-!0 = !MDSubprogram(name: "foo", line: 9, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 9, file: !27, scope: !1, type: !3, variables: !24)
-!1 = !MDFile(filename: "bar.c", directory: "/tmp/")
-!2 = !MDCompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !27, enums: !20, retainedTypes: !20, subprograms: !25, globals: !26, imports:  !20)
-!3 = !MDSubroutineType(types: !4)
+!0 = !DISubprogram(name: "foo", line: 9, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 9, file: !27, scope: !1, type: !3, variables: !24)
+!1 = !DIFile(filename: "bar.c", directory: "/tmp/")
+!2 = !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, emissionKind: 0, file: !27, enums: !20, retainedTypes: !20, subprograms: !25, globals: !26, imports:  !20)
+!3 = !DISubroutineType(types: !4)
 !4 = !{!5, !5}
-!5 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!6 = !MDSubprogram(name: "bar", linkageName: "bar", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !27, scope: !1, type: !7, function: i32 ()* @bar)
-!7 = !MDSubroutineType(types: !8)
+!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!6 = !DISubprogram(name: "bar", linkageName: "bar", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !27, scope: !1, type: !7, function: i32 ()* @bar)
+!7 = !DISubroutineType(types: !8)
 !8 = !{!5}
-!9 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9, arg: 0, scope: !0, file: !1, type: !5)
-!10 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line: 10, scope: !11, file: !1, type: !12)
+!9 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9, arg: 0, scope: !0, file: !1, type: !5)
+!10 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line: 10, scope: !11, file: !1, type: !12)
 
-!59 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9, arg: 0, scope: !0, file: !1, type: !5)
-!60 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line: 10, scope: !11, file: !1, type: !12)
+!59 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "j", line: 9, arg: 0, scope: !0, file: !1, type: !5)
+!60 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "xyz", line: 10, scope: !11, file: !1, type: !12)
 
-!11 = distinct !MDLexicalBlock(line: 9, column: 0, file: !1, scope: !0)
-!12 = !MDCompositeType(tag: DW_TAG_structure_type, name: "X", line: 10, size: 64, align: 32, file: !27, scope: !0, elements: !13)
+!11 = distinct !DILexicalBlock(line: 9, column: 0, file: !1, scope: !0)
+!12 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", line: 10, size: 64, align: 32, file: !27, scope: !0, elements: !13)
 !13 = !{!14, !15}
-!14 = !MDDerivedType(tag: DW_TAG_member, name: "a", line: 10, size: 32, align: 32, file: !27, scope: !12, baseType: !5)
-!15 = !MDDerivedType(tag: DW_TAG_member, name: "b", line: 10, size: 32, align: 32, offset: 32, file: !27, scope: !12, baseType: !5)
-!16 = !MDGlobalVariable(name: "i", line: 5, isLocal: false, isDefinition: true, scope: !1, file: !1, type: !5, variable: i32* @i)
-!17 = !MDLocation(line: 15, scope: !18)
-!18 = distinct !MDLexicalBlock(line: 14, column: 0, file: !1, scope: !6)
-!19 = !MDLocation(line: 9, scope: !0, inlinedAt: !17)
+!14 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 10, size: 32, align: 32, file: !27, scope: !12, baseType: !5)
+!15 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 10, size: 32, align: 32, offset: 32, file: !27, scope: !12, baseType: !5)
+!16 = !DIGlobalVariable(name: "i", line: 5, isLocal: false, isDefinition: true, scope: !1, file: !1, type: !5, variable: i32* @i)
+!17 = !DILocation(line: 15, scope: !18)
+!18 = distinct !DILexicalBlock(line: 14, column: 0, file: !1, scope: !6)
+!19 = !DILocation(line: 9, scope: !0, inlinedAt: !17)
 !20 = !{}
-!21 = !MDLocation(line: 9, scope: !11, inlinedAt: !17)
-!22 = !MDLocation(line: 11, scope: !11, inlinedAt: !17)
-!23 = !MDLocation(line: 16, scope: !18)
+!21 = !DILocation(line: 9, scope: !11, inlinedAt: !17)
+!22 = !DILocation(line: 11, scope: !11, inlinedAt: !17)
+!23 = !DILocation(line: 16, scope: !18)
 !24 = !{!9, !10}
 !25 = !{!0, !6}
 !26 = !{!16}
-!27 = !MDFile(filename: "bar.c", directory: "/tmp/")
+!27 = !DIFile(filename: "bar.c", directory: "/tmp/")
 !28 = !{i32 1, !"Debug Info Version", i32 3}
 !29 = !{null}
diff --git a/llvm/test/DebugInfo/Mips/delay-slot.ll b/llvm/test/DebugInfo/Mips/delay-slot.ll
index 97f3670850d..bbf749c82ab 100644
--- a/llvm/test/DebugInfo/Mips/delay-slot.ll
+++ b/llvm/test/DebugInfo/Mips/delay-slot.ll
@@ -26,7 +26,7 @@ target triple = "mips--linux-gnu"
 ; Function Attrs: nounwind
 define i32 @foo(i32 %x) #0 {
 entry:
-  call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !12, metadata !MDExpression()), !dbg !13
+  call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !12, metadata !DIExpression()), !dbg !13
   %tobool = icmp ne i32 %x, 0, !dbg !14
   br i1 %tobool, label %if.then, label %if.end, !dbg !14
 
@@ -54,22 +54,22 @@ attributes #1 = { nounwind readnone }
 !llvm.module.flags = !{!9, !10}
 !llvm.ident = !{!11}
 
-!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: "test.c", directory: "/tmp")
+!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: "test.c", directory: "/tmp")
 !2 = !{}
 !3 = !{!4}
-!4 = !MDSubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32)* @foo, variables: !2)
-!5 = !MDFile(filename: "test.c", directory: "/tmp")
-!6 = !MDSubroutineType(types: !7)
+!4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32)* @foo, variables: !2)
+!5 = !DIFile(filename: "test.c", directory: "/tmp")
+!6 = !DISubroutineType(types: !7)
 !7 = !{!8, !8}
-!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !9 = !{i32 2, !"Dwarf Version", i32 4}
 !10 = !{i32 2, !"Debug Info Version", i32 3}
 !11 = !{!"clang version 3.5.0"}
-!12 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 1, arg: 1, scope: !4, file: !5, type: !8)
-!13 = !MDLocation(line: 1, scope: !4)
-!14 = !MDLocation(line: 2, scope: !15)
-!15 = distinct !MDLexicalBlock(line: 2, column: 0, file: !1, scope: !4)
-!16 = !MDLocation(line: 3, scope: !15)
-!17 = !MDLocation(line: 4, scope: !4)
-!18 = !MDLocation(line: 5, scope: !4)
+!12 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 1, arg: 1, scope: !4, file: !5, type: !8)
+!13 = !DILocation(line: 1, scope: !4)
+!14 = !DILocation(line: 2, scope: !15)
+!15 = distinct !DILexicalBlock(line: 2, column: 0, file: !1, scope: !4)
+!16 = !DILocation(line: 3, scope: !15)
+!17 = !DILocation(line: 4, scope: !4)
+!18 = !DILocation(line: 5, scope: !4)
diff --git a/llvm/test/DebugInfo/Mips/fn-call-line.ll b/llvm/test/DebugInfo/Mips/fn-call-line.ll
index ad90fa808ea..18ed3dfa43a 100644
--- a/llvm/test/DebugInfo/Mips/fn-call-line.ll
+++ b/llvm/test/DebugInfo/Mips/fn-call-line.ll
@@ -68,17 +68,17 @@ attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "n
 !llvm.module.flags = !{!8, !9}
 !llvm.ident = !{!10}
 
-!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (trunk 226641)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
-!1 = !MDFile(filename: "fn-call-line.c", directory: "/tmp/dbginfo")
+!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (trunk 226641)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!1 = !DIFile(filename: "fn-call-line.c", directory: "/tmp/dbginfo")
 !2 = !{}
 !3 = !{!4}
-!4 = !MDSubprogram(name: "f2", line: 2, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: void ()* @f2, variables: !2)
-!5 = !MDFile(filename: "fn-call-line.c", directory: "/tmp/dbginfo")
-!6 = !MDSubroutineType(types: !7)
+!4 = !DISubprogram(name: "f2", line: 2, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: void ()* @f2, variables: !2)
+!5 = !DIFile(filename: "fn-call-line.c", directory: "/tmp/dbginfo")
+!6 = !DISubroutineType(types: !7)
 !7 = !{null}
 !8 = !{i32 2, !"Dwarf Version", i32 4}
 !9 = !{i32 2, !"Debug Info Version", i32 3}
 !10 = !{!"clang version 3.7.0 (trunk 226641)"}
-!11 = !MDLocation(line: 3, column: 3, scope: !4)
-!12 = !MDLocation(line: 4, column: 3, scope: !4)
-!13 = !MDLocation(line: 5, column: 1, scope: !4)
+!11 = !DILocation(line: 3, column: 3, scope: !4)
+!12 = !DILocation(line: 4, column: 3, scope: !4)
+!13 = !DILocation(line: 5, column: 1, scope: !4)