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, 11 insertions, 11 deletions

diff --git a/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll b/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll
index 0af0293e568..efa1a0849a8 100644
--- a/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll
+++ b/llvm/test/CodeGen/Inputs/DbgValueOtherTargets.ll
@@ -3,7 +3,7 @@
 define i32 @main() nounwind ssp {
 entry:
 ; CHECK: DEBUG_VALUE
-  call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !7, metadata !MDExpression()), !dbg !9
+  call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !7, metadata !DIExpression()), !dbg !9
   ret i32 0, !dbg !10
 }
 
@@ -14,17 +14,17 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!13}
 
-!0 = !MDSubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !12, scope: !1, type: !3, function: i32 ()* @main)
-!1 = !MDFile(filename: "/tmp/x.c", directory: "/Users/manav")
-!2 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 120996)", isOptimized: false, emissionKind: 0, file: !12, enums: !6, retainedTypes: !6, subprograms: !11)
-!3 = !MDSubroutineType(types: !4)
+!0 = !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, file: !12, scope: !1, type: !3, function: i32 ()* @main)
+!1 = !DIFile(filename: "/tmp/x.c", directory: "/Users/manav")
+!2 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 120996)", isOptimized: false, emissionKind: 0, file: !12, enums: !6, retainedTypes: !6, subprograms: !11)
+!3 = !DISubroutineType(types: !4)
 !4 = !{!5}
-!5 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
+!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
 !6 = !{}
-!7 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "i", line: 3, scope: !8, file: !1, type: !5)
-!8 = distinct !MDLexicalBlock(line: 2, column: 12, file: !12, scope: !0)
-!9 = !MDLocation(line: 3, column: 11, scope: !8)
-!10 = !MDLocation(line: 4, column: 2, scope: !8)
+!7 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "i", line: 3, scope: !8, file: !1, type: !5)
+!8 = distinct !DILexicalBlock(line: 2, column: 12, file: !12, scope: !0)
+!9 = !DILocation(line: 3, column: 11, scope: !8)
+!10 = !DILocation(line: 4, column: 2, scope: !8)
 !11 = !{!0}
-!12 = !MDFile(filename: "/tmp/x.c", directory: "/Users/manav")
+!12 = !DIFile(filename: "/tmp/x.c", directory: "/Users/manav")
 !13 = !{i32 1, !"Debug Info Version", i32 3}