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, 6 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/LiveDebugVariables.cpp b/llvm/lib/CodeGen/LiveDebugVariables.cpp
index df48c53..1571551 100644
--- a/llvm/lib/CodeGen/LiveDebugVariables.cpp
+++ b/llvm/lib/CodeGen/LiveDebugVariables.cpp
@@ -158,7 +158,7 @@ public:
   UserValue *getNext() const { return next; }
 
   /// match - Does this UserValue match the parameters?
-  bool match(const MDNode *Var, const MDNode *Expr, const MDLocation *IA,
+  bool match(const MDNode *Var, const MDNode *Expr, const DILocation *IA,
              unsigned Offset, bool indirect) const {
     return Var == Variable && Expr == Expression && dl->getInlinedAt() == IA &&
            Offset == offset && indirect == IsIndirect;
@@ -362,7 +362,7 @@ static void printDebugLoc(DebugLoc DL, raw_ostream &CommentOS,
   if (!DL)
     return;
 
-  auto *Scope = cast<MDScope>(DL.getScope());
+  auto *Scope = cast<DIScope>(DL.getScope());
   // Omit the directory, because it's likely to be long and uninteresting.
   CommentOS << Scope->getFilename();
   CommentOS << ':' << DL.getLine();
@@ -378,8 +378,8 @@ static void printDebugLoc(DebugLoc DL, raw_ostream &CommentOS,
   CommentOS << " ]";
 }
 
-static void printExtendedName(raw_ostream &OS, const MDLocalVariable *V,
-                              const MDLocation *DL) {
+static void printExtendedName(raw_ostream &OS, const DILocalVariable *V,
+                              const DILocation *DL) {
   const LLVMContext &Ctx = V->getContext();
   StringRef Res = V->getName();
   if (!Res.empty())
@@ -394,7 +394,7 @@ static void printExtendedName(raw_ostream &OS, const MDLocalVariable *V,
 }
 
 void UserValue::print(raw_ostream &OS, const TargetRegisterInfo *TRI) {
-  auto *DV = cast<MDLocalVariable>(Variable);
+  auto *DV = cast<DILocalVariable>(Variable);
   OS << "!\"";
   printExtendedName(OS, DV, dl);
 
@@ -981,7 +981,7 @@ void UserValue::insertDebugValue(MachineBasicBlock *MBB, SlotIndex Idx,
   MachineOperand &Loc = locations[LocNo];
   ++NumInsertedDebugValues;
 
-  assert(cast<MDLocalVariable>(Variable)
+  assert(cast<DILocalVariable>(Variable)
              ->isValidLocationForIntrinsic(getDebugLoc()) &&
          "Expected inlined-at fields to agree");
   if (Loc.isReg())