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, 16 insertions, 16 deletions

diff --git a/llvm/test/DebugInfo/namespace_inline_function_definition.ll b/llvm/test/DebugInfo/namespace_inline_function_definition.ll
index 8628b3d465e..c14152065b7 100644
--- a/llvm/test/DebugInfo/namespace_inline_function_definition.ll
+++ b/llvm/test/DebugInfo/namespace_inline_function_definition.ll
@@ -42,7 +42,7 @@ entry:
   store i32 0, i32* %retval
   %0 = load i32, i32* @x, align 4, !dbg !16
   store i32 %0, i32* %i.addr.i, align 4
-  call void @llvm.dbg.declare(metadata i32* %i.addr.i, metadata !117, metadata !MDExpression()), !dbg !18
+  call void @llvm.dbg.declare(metadata i32* %i.addr.i, metadata !117, metadata !DIExpression()), !dbg !18
   %1 = load i32, i32* %i.addr.i, align 4, !dbg !18
   %mul.i = mul nsw i32 %1, 2, !dbg !18
   ret i32 %mul.i, !dbg !16
@@ -53,7 +53,7 @@ define i32 @_ZN2ns4funcEi(i32 %i) #1 {
 entry:
   %i.addr = alloca i32, align 4
   store i32 %i, i32* %i.addr, align 4
-  call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !17, metadata !MDExpression()), !dbg !19
+  call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !17, metadata !DIExpression()), !dbg !19
   %0 = load i32, i32* %i.addr, align 4, !dbg !19
   %mul = mul nsw i32 %0, 2, !dbg !19
   ret i32 %mul, !dbg !19
@@ -70,26 +70,26 @@ attributes #2 = { nounwind readnone }
 !llvm.module.flags = !{!13, !14}
 !llvm.ident = !{!15}
 
-!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, 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: "namespace_inline_function_definition.cpp", directory: "/tmp/dbginfo")
+!0 = !DICompileUnit(language: DW_LANG_C_plus_plus, 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: "namespace_inline_function_definition.cpp", directory: "/tmp/dbginfo")
 !2 = !{}
 !3 = !{!4, !9}
-!4 = !MDSubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: i32 ()* @main, variables: !2)
-!5 = !MDFile(filename: "namespace_inline_function_definition.cpp", directory: "/tmp/dbginfo")
-!6 = !MDSubroutineType(types: !7)
+!4 = !DISubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !6, function: i32 ()* @main, variables: !2)
+!5 = !DIFile(filename: "namespace_inline_function_definition.cpp", directory: "/tmp/dbginfo")
+!6 = !DISubroutineType(types: !7)
 !7 = !{!8}
-!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!9 = !MDSubprogram(name: "func", linkageName: "_ZN2ns4funcEi", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 6, file: !1, scope: !10, type: !11, function: i32 (i32)* @_ZN2ns4funcEi, variables: !2)
-!10 = !MDNamespace(name: "ns", line: 1, file: !1, scope: null)
-!11 = !MDSubroutineType(types: !12)
+!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!9 = !DISubprogram(name: "func", linkageName: "_ZN2ns4funcEi", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 6, file: !1, scope: !10, type: !11, function: i32 (i32)* @_ZN2ns4funcEi, variables: !2)
+!10 = !DINamespace(name: "ns", line: 1, file: !1, scope: null)
+!11 = !DISubroutineType(types: !12)
 !12 = !{!8, !8}
 !13 = !{i32 2, !"Dwarf Version", i32 4}
 !14 = !{i32 2, !"Debug Info Version", i32 3}
 !15 = !{!"clang version 3.5.0 "}
-!16 = !MDLocation(line: 5, scope: !4)
-!17 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 6, arg: 1, scope: !9, file: !5, type: !8)
+!16 = !DILocation(line: 5, scope: !4)
+!17 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 6, arg: 1, scope: !9, file: !5, type: !8)
 
-!117 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 6, arg: 1, scope: !9, file: !5, type: !8)
+!117 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "i", line: 6, arg: 1, scope: !9, file: !5, type: !8)
 
-!18 = !MDLocation(line: 6, scope: !9, inlinedAt: !16)
-!19 = !MDLocation(line: 6, scope: !9)
+!18 = !DILocation(line: 6, scope: !9, inlinedAt: !16)
+!19 = !DILocation(line: 6, scope: !9)