Author: rsmith
Date: Fri Mar 2 18:52:40 2012
New Revision: 151963
URL: http://llvm.org/viewvc/llvm-project?rev=151963&view=rev
Log:
Factor bitfields of LangOptions out into a base class in order to make them
trivially-copyable. 50KiB reduction in clang binary size.
Modified:
cfe/trunk/include/clang/Basic/LangOptions.h
Modified: cfe/trunk/include/clang/Basic/LangOptions.h
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/LangOptions.h?rev=151963&r1=151962&r2=151963&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/LangOptions.h (original)
+++ cfe/trunk/include/clang/Basic/LangOptions.h Fri Mar 2 18:52:40 2012
@@ -21,9 +21,27 @@
namespace clang {
+/// Bitfields of LangOptions, split out from LangOptions in order to ensure
that
+/// this large collection of bitfields is a trivial class type.
+class LangOptionsBase {
+public:
+ // Define simple language options (with no accessors).
+#define LANGOPT(Name, Bits, Default, Description) unsigned Name : Bits;
+#define ENUM_LANGOPT(Name, Type, Bits, Default, Description)
+#include "clang/Basic/LangOptions.def"
+
+protected:
+ // Define language options of enumeration type. These are private, and will
+ // have accessors (below).
+#define LANGOPT(Name, Bits, Default, Description)
+#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
+ unsigned Name : Bits;
+#include "clang/Basic/LangOptions.def"
+};
+
/// LangOptions - This class keeps track of the various options that can be
/// enabled, which controls the dialect of C that is accepted.
-class LangOptions : public RefCountedBase<LangOptions> {
+class LangOptions : public RefCountedBase<LangOptions>, public LangOptionsBase
{
public:
typedef clang::Visibility Visibility;
@@ -36,19 +54,6 @@
SOB_Trapping // -ftrapv
};
- // Define simple language options (with no accessors).
-#define LANGOPT(Name, Bits, Default, Description) unsigned Name : Bits;
-#define ENUM_LANGOPT(Name, Type, Bits, Default, Description)
-#include "clang/Basic/LangOptions.def"
-
-private:
- // Define language options of enumeration type. These are private, and will
- // have accessors (below).
-#define LANGOPT(Name, Bits, Default, Description)
-#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
- unsigned Name : Bits;
-#include "clang/Basic/LangOptions.def"
-
public:
std::string ObjCConstantStringClass;
_______________________________________________
cfe-commits mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
