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, 9 insertions, 9 deletions

diff --git a/llvm/test/Assembler/mdsubprogram.ll b/llvm/test/Assembler/mdsubprogram.ll
index 93000893c16..3fa1081889f 100644
--- a/llvm/test/Assembler/mdsubprogram.ll
+++ b/llvm/test/Assembler/mdsubprogram.ll
@@ -7,22 +7,22 @@ declare void @_Z3foov()
 !named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9}
 
 !0 = !{null}
-!1 = distinct !MDCompositeType(tag: DW_TAG_structure_type)
-!2 = !MDFile(filename: "path/to/file", directory: "/path/to/dir")
-!3 = !MDSubroutineType(types: !0)
-!4 = distinct !MDCompositeType(tag: DW_TAG_structure_type)
+!1 = distinct !DICompositeType(tag: DW_TAG_structure_type)
+!2 = !DIFile(filename: "path/to/file", directory: "/path/to/dir")
+!3 = !DISubroutineType(types: !0)
+!4 = distinct !DICompositeType(tag: DW_TAG_structure_type)
 !5 = distinct !{}
-!6 = distinct !MDSubprogram(isDefinition: false)
+!6 = distinct !DISubprogram(isDefinition: false)
 !7 = distinct !{}
 
-; CHECK: !8 = !MDSubprogram(name: "foo", linkageName: "_Zfoov", scope: !1, file: !2, line: 7, type: !3, isLocal: true, isDefinition: false, scopeLine: 8, containingType: !4, virtuality: DW_VIRTUALITY_pure_virtual, virtualIndex: 10, flags: DIFlagPrototyped, isOptimized: true, function: void ()* @_Z3foov, templateParams: !5, declaration: !6, variables: !7)
-!8 = !MDSubprogram(name: "foo", linkageName: "_Zfoov", scope: !1,
+; CHECK: !8 = !DISubprogram(name: "foo", linkageName: "_Zfoov", scope: !1, file: !2, line: 7, type: !3, isLocal: true, isDefinition: false, scopeLine: 8, containingType: !4, virtuality: DW_VIRTUALITY_pure_virtual, virtualIndex: 10, flags: DIFlagPrototyped, isOptimized: true, function: void ()* @_Z3foov, templateParams: !5, declaration: !6, variables: !7)
+!8 = !DISubprogram(name: "foo", linkageName: "_Zfoov", scope: !1,
                    file: !2, line: 7, type: !3, isLocal: true,
                    isDefinition: false, scopeLine: 8, containingType: !4,
                    virtuality: DW_VIRTUALITY_pure_virtual, virtualIndex: 10,
                    flags: DIFlagPrototyped, isOptimized: true, function: void ()* @_Z3foov,
                    templateParams: !5, declaration: !6, variables: !7)
 
-; CHECK: !9 = !MDSubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
-!9 = !MDSubprogram()
+; CHECK: !9 = !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false)
+!9 = !DISubprogram()