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, 7 insertions, 7 deletions

diff --git a/llvm/test/DebugInfo/ARM/selectiondag-deadcode.ll b/llvm/test/DebugInfo/ARM/selectiondag-deadcode.ll
index 9175eee4f52..1b6528269f7 100644
--- a/llvm/test/DebugInfo/ARM/selectiondag-deadcode.ll
+++ b/llvm/test/DebugInfo/ARM/selectiondag-deadcode.ll
@@ -13,15 +13,15 @@ _ZN7Vector39NormalizeEv.exit:                     ; preds = %1, %0
   ; and SelectionDAGISel crashes.  It should definitely not
   ; crash. Drop the dbg_value instead.
   ; CHECK-NOT: "matrix"
-  tail call void @llvm.dbg.declare(metadata %class.Matrix3.0.6.10* %agg.result, metadata !45, metadata !MDExpression(DW_OP_deref))
+  tail call void @llvm.dbg.declare(metadata %class.Matrix3.0.6.10* %agg.result, metadata !45, metadata !DIExpression(DW_OP_deref))
   %2 = getelementptr inbounds %class.Matrix3.0.6.10, %class.Matrix3.0.6.10* %agg.result, i32 0, i32 0, i32 8
   ret void
 }
 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
 declare arm_aapcscc void @_ZL4Sqrtd() #2
-!4 = !MDCompositeType(tag: DW_TAG_class_type, name: "Matrix3", line: 20, size: 288, align: 32, file: !5, identifier: "_ZTS7Matrix3")
-!5 = !MDFile(filename: "test.ii", directory: "/Volumes/Data/radar/15094721")
-!39 = !MDSubprogram(name: "GetMatrix", linkageName: "_Z9GetMatrixv", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 32, file: !5, scope: !40, type: !41, function: void (%class.Matrix3.0.6.10*)* @_Z9GetMatrixv)
-!40 = !MDFile(filename: "test.ii", directory: "/Volumes/Data/radar/15094721")
-!41 = !MDSubroutineType(types: null)
-!45 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "matrix", line: 35, scope: !39, file: !40, type: !4)
+!4 = !DICompositeType(tag: DW_TAG_class_type, name: "Matrix3", line: 20, size: 288, align: 32, file: !5, identifier: "_ZTS7Matrix3")
+!5 = !DIFile(filename: "test.ii", directory: "/Volumes/Data/radar/15094721")
+!39 = !DISubprogram(name: "GetMatrix", linkageName: "_Z9GetMatrixv", line: 32, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 32, file: !5, scope: !40, type: !41, function: void (%class.Matrix3.0.6.10*)* @_Z9GetMatrixv)
+!40 = !DIFile(filename: "test.ii", directory: "/Volumes/Data/radar/15094721")
+!41 = !DISubroutineType(types: null)
+!45 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "matrix", line: 35, scope: !39, file: !40, type: !4)