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, 34 insertions, 36 deletions

diff --git a/llvm/unittests/IR/DebugInfoTest.cpp b/llvm/unittests/IR/DebugInfoTest.cpp
index 534663a2da1..f633782b379 100644
--- a/llvm/unittests/IR/DebugInfoTest.cpp
+++ b/llvm/unittests/IR/DebugInfoTest.cpp
@@ -14,69 +14,67 @@ using namespace llvm;
 
 namespace {
 
-TEST(DebugNodeTest, getFlag) {
+TEST(DINodeTest, getFlag) {
   // Some valid flags.
-  EXPECT_EQ(DebugNode::FlagPublic, DebugNode::getFlag("DIFlagPublic"));
-  EXPECT_EQ(DebugNode::FlagProtected, DebugNode::getFlag("DIFlagProtected"));
-  EXPECT_EQ(DebugNode::FlagPrivate, DebugNode::getFlag("DIFlagPrivate"));
-  EXPECT_EQ(DebugNode::FlagVector, DebugNode::getFlag("DIFlagVector"));
-  EXPECT_EQ(DebugNode::FlagRValueReference,
-            DebugNode::getFlag("DIFlagRValueReference"));
+  EXPECT_EQ(DINode::FlagPublic, DINode::getFlag("DIFlagPublic"));
+  EXPECT_EQ(DINode::FlagProtected, DINode::getFlag("DIFlagProtected"));
+  EXPECT_EQ(DINode::FlagPrivate, DINode::getFlag("DIFlagPrivate"));
+  EXPECT_EQ(DINode::FlagVector, DINode::getFlag("DIFlagVector"));
+  EXPECT_EQ(DINode::FlagRValueReference,
+            DINode::getFlag("DIFlagRValueReference"));
 
   // FlagAccessibility shouldn't work.
-  EXPECT_EQ(0u, DebugNode::getFlag("DIFlagAccessibility"));
+  EXPECT_EQ(0u, DINode::getFlag("DIFlagAccessibility"));
 
   // Some other invalid strings.
-  EXPECT_EQ(0u, DebugNode::getFlag("FlagVector"));
-  EXPECT_EQ(0u, DebugNode::getFlag("Vector"));
-  EXPECT_EQ(0u, DebugNode::getFlag("other things"));
-  EXPECT_EQ(0u, DebugNode::getFlag("DIFlagOther"));
+  EXPECT_EQ(0u, DINode::getFlag("FlagVector"));
+  EXPECT_EQ(0u, DINode::getFlag("Vector"));
+  EXPECT_EQ(0u, DINode::getFlag("other things"));
+  EXPECT_EQ(0u, DINode::getFlag("DIFlagOther"));
 }
 
-TEST(DebugNodeTest, getFlagString) {
+TEST(DINodeTest, getFlagString) {
   // Some valid flags.
   EXPECT_EQ(StringRef("DIFlagPublic"),
-            DebugNode::getFlagString(DebugNode::FlagPublic));
+            DINode::getFlagString(DINode::FlagPublic));
   EXPECT_EQ(StringRef("DIFlagProtected"),
-            DebugNode::getFlagString(DebugNode::FlagProtected));
+            DINode::getFlagString(DINode::FlagProtected));
   EXPECT_EQ(StringRef("DIFlagPrivate"),
-            DebugNode::getFlagString(DebugNode::FlagPrivate));
+            DINode::getFlagString(DINode::FlagPrivate));
   EXPECT_EQ(StringRef("DIFlagVector"),
-            DebugNode::getFlagString(DebugNode::FlagVector));
+            DINode::getFlagString(DINode::FlagVector));
   EXPECT_EQ(StringRef("DIFlagRValueReference"),
-            DebugNode::getFlagString(DebugNode::FlagRValueReference));
+            DINode::getFlagString(DINode::FlagRValueReference));
 
   // FlagAccessibility actually equals FlagPublic.
   EXPECT_EQ(StringRef("DIFlagPublic"),
-            DebugNode::getFlagString(DebugNode::FlagAccessibility));
+            DINode::getFlagString(DINode::FlagAccessibility));
 
   // Some other invalid flags.
-  EXPECT_EQ(StringRef(), DebugNode::getFlagString(DebugNode::FlagPublic |
-                                                  DebugNode::FlagVector));
-  EXPECT_EQ(StringRef(), DebugNode::getFlagString(DebugNode::FlagFwdDecl |
-                                                  DebugNode::FlagArtificial));
-  EXPECT_EQ(StringRef(), DebugNode::getFlagString(0xffff));
+  EXPECT_EQ(StringRef(),
+            DINode::getFlagString(DINode::FlagPublic | DINode::FlagVector));
+  EXPECT_EQ(StringRef(), DINode::getFlagString(DINode::FlagFwdDecl |
+                                               DINode::FlagArtificial));
+  EXPECT_EQ(StringRef(), DINode::getFlagString(0xffff));
 }
 
-TEST(DebugNodeTest, splitFlags) {
+TEST(DINodeTest, splitFlags) {
 // Some valid flags.
 #define CHECK_SPLIT(FLAGS, VECTOR, REMAINDER)                                  \
   {                                                                            \
     SmallVector<unsigned, 8> V;                                                \
-    EXPECT_EQ(REMAINDER, DebugNode::splitFlags(FLAGS, V));                     \
+    EXPECT_EQ(REMAINDER, DINode::splitFlags(FLAGS, V));                        \
     EXPECT_TRUE(makeArrayRef(V).equals(VECTOR));                               \
   }
-  CHECK_SPLIT(DebugNode::FlagPublic, {DebugNode::FlagPublic}, 0u);
-  CHECK_SPLIT(DebugNode::FlagProtected, {DebugNode::FlagProtected}, 0u);
-  CHECK_SPLIT(DebugNode::FlagPrivate, {DebugNode::FlagPrivate}, 0u);
-  CHECK_SPLIT(DebugNode::FlagVector, {DebugNode::FlagVector}, 0u);
-  CHECK_SPLIT(DebugNode::FlagRValueReference, {DebugNode::FlagRValueReference},
-              0u);
-  unsigned Flags[] = {DebugNode::FlagFwdDecl, DebugNode::FlagVector};
-  CHECK_SPLIT(DebugNode::FlagFwdDecl | DebugNode::FlagVector, Flags, 0u);
+  CHECK_SPLIT(DINode::FlagPublic, {DINode::FlagPublic}, 0u);
+  CHECK_SPLIT(DINode::FlagProtected, {DINode::FlagProtected}, 0u);
+  CHECK_SPLIT(DINode::FlagPrivate, {DINode::FlagPrivate}, 0u);
+  CHECK_SPLIT(DINode::FlagVector, {DINode::FlagVector}, 0u);
+  CHECK_SPLIT(DINode::FlagRValueReference, {DINode::FlagRValueReference}, 0u);
+  unsigned Flags[] = {DINode::FlagFwdDecl, DINode::FlagVector};
+  CHECK_SPLIT(DINode::FlagFwdDecl | DINode::FlagVector, Flags, 0u);
   CHECK_SPLIT(0x100000u, {}, 0x100000u);
-  CHECK_SPLIT(0x100000u | DebugNode::FlagVector, {DebugNode::FlagVector},
-              0x100000u);
+  CHECK_SPLIT(0x100000u | DINode::FlagVector, {DINode::FlagVector}, 0x100000u);
 #undef CHECK_SPLIT
 }