IR: getOrInsertODRUniquedType => DICompositeType::getODRType, NFC

Lift the API for debug info ODR type uniquing up a layer.  Instead of
clients managing the map directly on the LLVMContext, add a static
method to DICompositeType called getODRType and handle the map in the
background.  Also adds DICompositeType::getODRTypeIfExists, so far just
for convenience in the unit tests.

This simplifies the logic in LLParser and BitcodeReader.  Because of
argument spam there are actually a few more lines of code now; I'll see
if I come up with a reasonable way to clean that up.

llvm-svn: 266742

1 files changed, 0 insertions, 6 deletions

diff --git a/llvm/lib/IR/LLVMContext.cpp b/llvm/lib/IR/LLVMContext.cpp
index 7c0d18d..0d4f724 100644
--- a/llvm/lib/IR/LLVMContext.cpp
+++ b/llvm/lib/IR/LLVMContext.cpp
@@ -323,12 +323,6 @@ void LLVMContext::enableDebugTypeODRUniquing() {
 
 void LLVMContext::disableDebugTypeODRUniquing() { pImpl->DITypeMap.reset(); }
 
-DICompositeType **LLVMContext::getOrInsertODRUniquedType(const MDString &S) {
-  if (!isODRUniquingDebugTypes())
-    return nullptr;
-  return &(*pImpl->DITypeMap)[&S];
-}
-
 void LLVMContext::setDiscardValueNames(bool Discard) {
   pImpl->DiscardValueNames = Discard;
 }