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, 5 insertions, 5 deletions

diff --git a/llvm/test/Transforms/ArgumentPromotion/dbg.ll b/llvm/test/Transforms/ArgumentPromotion/dbg.ll
index 69bd4d22a61..17a34cb6223 100644
--- a/llvm/test/Transforms/ArgumentPromotion/dbg.ll
+++ b/llvm/test/Transforms/ArgumentPromotion/dbg.ll
@@ -1,6 +1,6 @@
 ; RUN: opt < %s -argpromotion -S | FileCheck %s
 ; CHECK: call void @test(i32 %
-; CHECK: !MDSubprogram(name: "test",{{.*}} function: void (i32)* @test
+; CHECK: !DISubprogram(name: "test",{{.*}} function: void (i32)* @test
 
 declare void @sink(i32)
 
@@ -20,8 +20,8 @@ define void @caller(i32** %Y) {
 !llvm.dbg.cu = !{!3}
 
 !0 = !{i32 2, !"Debug Info Version", i32 3}
-!1 = !MDLocation(line: 8, scope: !2)
-!2 = !MDSubprogram(name: "test", line: 3, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, scope: null, function: void (i32**)* @test)
-!3 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 2, file: !5, subprograms: !4)
+!1 = !DILocation(line: 8, scope: !2)
+!2 = !DISubprogram(name: "test", line: 3, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, scope: null, function: void (i32**)* @test)
+!3 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 2, file: !5, subprograms: !4)
 !4 = !{!2}
-!5 = !MDFile(filename: "test.c", directory: "")
+!5 = !DIFile(filename: "test.c", directory: "")