CodeGen: refactor DwarfException

DwarfException served as a base class for exception handling directive emission.
However, this is also used by other exception models (e.g. Win64EH).  Rename
this class to EHStreamer and split it out of DwarfException.h.  NFC.

Use the opportunity to fix up some of the documentation comments to match
current LLVM style.  Also rename some functions to conform better with current
LLVM coding style.

llvm-svn: 210622

1 files changed, 6 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 67b57fa2b4c..996dc2122f4 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -233,23 +233,23 @@ bool AsmPrinter::doInitialization(Module &M) {
     }
   }
 
-  DwarfException *DE = nullptr;
+  EHStreamer *ES = nullptr;
   switch (MAI->getExceptionHandlingType()) {
   case ExceptionHandling::None:
     break;
   case ExceptionHandling::SjLj:
   case ExceptionHandling::DwarfCFI:
-    DE = new DwarfCFIException(this);
+    ES = new DwarfCFIException(this);
     break;
   case ExceptionHandling::ARM:
-    DE = new ARMException(this);
+    ES = new ARMException(this);
     break;
   case ExceptionHandling::Win64:
-    DE = new Win64Exception(this);
+    ES = new Win64Exception(this);
     break;
   }
-  if (DE)
-    Handlers.push_back(HandlerInfo(DE, EHTimerName, DWARFGroupName));
+  if (ES)
+    Handlers.push_back(HandlerInfo(ES, EHTimerName, DWARFGroupName));
   return false;
 }