commit 2df9ced9fd1e8c7d7b38443db07e0e811de22571
author Chris Lattner <sabre@nondot.org> Thu Apr 30 02:43:43 2009 +0000
committer Chris Lattner <sabre@nondot.org> Thu Apr 30 02:43:43 2009 +0000
tree c5cb423c1cc8fe563f15be09e5a3e6612763b643
parent 5532180ae3fa5b3bfa0b2177f08c94075641e8bb

initial support for __[u]int128_t, which should be basically
compatible with VC++ and GCC.  The codegen/mangling angle hasn't
been fully ironed out yet.  Note that we accept int128_t even in
32-bit mode, unlike gcc.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70464 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/ASTContext.cpp

diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 58fc42b..6cd016c 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -251,6 +251,10 @@
   InitBuiltinType(DoubleTy,            BuiltinType::Double);
   InitBuiltinType(LongDoubleTy,        BuiltinType::LongDouble);
 
+  // GNU extension, 128-bit integers.
+  InitBuiltinType(Int128Ty,            BuiltinType::Int128);
+  InitBuiltinType(UnsignedInt128Ty,    BuiltinType::UInt128);
+
   if (LangOpts.CPlusPlus) // C++ 3.9.1p5
     InitBuiltinType(WCharTy,           BuiltinType::WChar);
   else // C99
@@ -421,6 +425,13 @@
       Width = Target.getLongDoubleWidth();
       Align = Target.getLongDoubleAlign();
       break;
+    case BuiltinType::Int128:
+    case BuiltinType::UInt128:
+      Width = 128;
+          
+      // FIXME: Is this correct for all targets?
+      Align = 128;
+      break;
     }
     break;
   case Type::FixedWidthInt:
@@ -1923,6 +1934,9 @@
   case BuiltinType::LongLong:
   case BuiltinType::ULongLong:
     return 6 + (getIntWidth(LongLongTy) << 3);
+  case BuiltinType::Int128:
+  case BuiltinType::UInt128:
+    return 7 + (getIntWidth(Int128Ty) << 3);
   }
 }
 
@@ -2291,6 +2305,7 @@
           encoding = 
             (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 
           break;
+      case BuiltinType::UInt128:    encoding = 'T'; break;
       case BuiltinType::ULongLong:  encoding = 'Q'; break;
       case BuiltinType::Char_S:
       case BuiltinType::SChar:      encoding = 'c'; break;
@@ -2301,6 +2316,7 @@
           (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 
         break;
       case BuiltinType::LongLong:   encoding = 'q'; break;
+      case BuiltinType::Int128:     encoding = 't'; break;
       case BuiltinType::Float:      encoding = 'f'; break;
       case BuiltinType::Double:     encoding = 'd'; break;
       case BuiltinType::LongDouble: encoding = 'd'; break;
@@ -3244,6 +3260,8 @@
     return UnsignedLongTy;
   case BuiltinType::LongLong:
     return UnsignedLongLongTy;
+  case BuiltinType::Int128:
+    return UnsignedInt128Ty;
   default:
     assert(0 && "Unexpected signed integer type");
     return QualType();