[cfe-commits] r49898 - in /cfe/trunk: include/clang/Basic/TargetInfo.h lib/CodeGen/CodeGenTypes.cpp

[Nate Begeman]

Author: sampo
Date: Fri Apr 18 00:41:31 2008
New Revision: 49898

URL: http://llvm.org/viewvc/llvm-project?rev=49898&view=rev
Log:
Allow targets to override double size, alignment, and semantics, and tie this
information into the IR type codegen.  This allows a target to codegen the C
'double' type as either double or float.

Modified:
    cfe/trunk/include/clang/Basic/TargetInfo.h
    cfe/trunk/lib/CodeGen/CodeGenTypes.cpp

Modified: cfe/trunk/include/clang/Basic/TargetInfo.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/TargetInfo.h?rev=49898&r1=49897&r2=49898&view=diff

==============================================================================
--- cfe/trunk/include/clang/Basic/TargetInfo.h (original)
+++ cfe/trunk/include/clang/Basic/TargetInfo.h Fri Apr 18 00:41:31 2008
@@ -36,6 +36,8 @@
   // values are specified by the TargetInfo constructor.
   bool CharIsSigned;
   unsigned WCharWidth, WCharAlign;
+  unsigned DoubleWidth, DoubleAlign;
+  
   const llvm::fltSemantics *FloatFormat, *DoubleFormat, *LongDoubleFormat;
 
   // TargetInfo Constructor.  Default initializes all fields.
@@ -103,8 +105,8 @@
   const llvm::fltSemantics *getFloatFormat() const { return FloatFormat; }
 
   /// getDoubleWidth/Align/Format - Return the size/align/format of 'double'.
-  unsigned getDoubleWidth() const { return 64; } // FIXME
-  unsigned getDoubleAlign() const { return 32; } // FIXME
+  unsigned getDoubleWidth() const { return DoubleWidth; }
+  unsigned getDoubleAlign() const { return DoubleAlign; }
   const llvm::fltSemantics *getDoubleFormat() const { return DoubleFormat; }
 
   /// getLongDoubleWidth/Align/Format - Return the size/align/format of 'long

Modified: cfe/trunk/lib/CodeGen/CodeGenTypes.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenTypes.cpp?rev=49898&r1=49897&r2=49898&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenTypes.cpp (original)
+++ cfe/trunk/lib/CodeGen/CodeGenTypes.cpp Fri Apr 18 00:41:31 2008
@@ -215,7 +215,9 @@
         static_cast<unsigned>(Context.getTypeSize(T)));
       
     case BuiltinType::Float:      return llvm::Type::FloatTy;
-    case BuiltinType::Double:     return llvm::Type::DoubleTy;
+    case BuiltinType::Double:
+      return (Context.Target.getDoubleFormat() == &llvm::APFloat::IEEEdouble) ? 
+        llvm::Type::DoubleTy : llvm::Type::FloatTy;
     case BuiltinType::LongDouble:
       // FIXME: mapping long double onto double.
       return llvm::Type::DoubleTy;