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, 8 insertions, 8 deletions

diff --git a/llvm/lib/IR/DebugLoc.cpp b/llvm/lib/IR/DebugLoc.cpp
index 2d00c983311..72d5c0e6188 100644
--- a/llvm/lib/IR/DebugLoc.cpp
+++ b/llvm/lib/IR/DebugLoc.cpp
@@ -16,11 +16,11 @@ using namespace llvm;
 //===----------------------------------------------------------------------===//
 // DebugLoc Implementation
 //===----------------------------------------------------------------------===//
-DebugLoc::DebugLoc(const MDLocation *L) : Loc(const_cast<MDLocation *>(L)) {}
+DebugLoc::DebugLoc(const DILocation *L) : Loc(const_cast<DILocation *>(L)) {}
 DebugLoc::DebugLoc(const MDNode *L) : Loc(const_cast<MDNode *>(L)) {}
 
-MDLocation *DebugLoc::get() const {
-  return cast_or_null<MDLocation>(Loc.get());
+DILocation *DebugLoc::get() const {
+  return cast_or_null<DILocation>(Loc.get());
 }
 
 unsigned DebugLoc::getLine() const {
@@ -38,17 +38,17 @@ MDNode *DebugLoc::getScope() const {
   return get()->getScope();
 }
 
-MDLocation *DebugLoc::getInlinedAt() const {
+DILocation *DebugLoc::getInlinedAt() const {
   assert(get() && "Expected valid DebugLoc");
   return get()->getInlinedAt();
 }
 
 MDNode *DebugLoc::getInlinedAtScope() const {
-  return cast<MDLocation>(Loc)->getInlinedAtScope();
+  return cast<DILocation>(Loc)->getInlinedAtScope();
 }
 
 DebugLoc DebugLoc::getFnDebugLoc() const {
-  // FIXME: Add a method on \a MDLocation that does this work.
+  // FIXME: Add a method on \a DILocation that does this work.
   const MDNode *Scope = getInlinedAtScope();
   if (auto *SP = getDISubprogram(Scope))
     return DebugLoc::get(SP->getScopeLine(), 0, SP);
@@ -62,7 +62,7 @@ DebugLoc DebugLoc::get(unsigned Line, unsigned Col, const MDNode *Scope,
   if (!Scope)
     return DebugLoc();
 
-  return MDLocation::get(Scope->getContext(), Line, Col,
+  return DILocation::get(Scope->getContext(), Line, Col,
                          const_cast<MDNode *>(Scope),
                          const_cast<MDNode *>(InlinedAt));
 }
@@ -88,7 +88,7 @@ void DebugLoc::print(raw_ostream &OS) const {
     return;
 
   // Print source line info.
-  auto *Scope = cast<MDScope>(getScope());
+  auto *Scope = cast<DIScope>(getScope());
   OS << Scope->getFilename();
   OS << ':' << getLine();
   if (getCol() != 0)