Index: lib/Basic/TargetInfo.cpp
===================================================================
--- lib/Basic/TargetInfo.cpp
+++ lib/Basic/TargetInfo.cpp
@@ -226,7 +226,7 @@
     return Double;
 
   switch (BitWidth) {
-  case 96:
+  case 80:
     if (&getLongDoubleFormat() == &llvm::APFloat::x87DoubleExtended)
       return LongDouble;
     break;
Index: lib/Sema/SemaDeclAttr.cpp
===================================================================
--- lib/Sema/SemaDeclAttr.cpp
+++ lib/Sema/SemaDeclAttr.cpp
@@ -3388,7 +3388,7 @@
       DestWidth = 64;
       break;
     case 'X':
-      DestWidth = 96;
+      DestWidth = 80;
       break;
     case 'T':
       DestWidth = 128;