Move a bit more state over to the LLVMContext.

[oota-llvm.git] / lib / VMCore / LLVMContextImpl.h

diff --git a/lib/VMCore/LLVMContextImpl.h b/lib/VMCore/LLVMContextImpl.h
index 129a759cd99f12e8ce6e15197eac035910114b3f..5571995c7e5fd4b61d3b878a4856d55db9733ceb 100644 (file)
--- a/lib/VMCore/LLVMContextImpl.h
+++ b/lib/VMCore/LLVMContextImpl.h
@@ -15,6 +15,8 @@
 #ifndef LLVM_LLVMCONTEXT_IMPL_H
 #define LLVM_LLVMCONTEXT_IMPL_H
 
+#include "llvm/LLVMContext.h"
+#include "llvm/DerivedTypes.h"
 #include "llvm/System/RWMutex.h"
 #include "llvm/ADT/APFloat.h"
 #include "llvm/ADT/APInt.h"
@@ -100,10 +102,13 @@ class LLVMContextImpl {
   FoldingSet<MDNode> MDNodeSet;
   
   LLVMContext &Context;
+  ConstantInt *TheTrueVal;
+  ConstantInt *TheFalseVal;
+  
   LLVMContextImpl();
   LLVMContextImpl(const LLVMContextImpl&);
 public:
-  LLVMContextImpl(LLVMContext &C) : Context(C) { }
+  LLVMContextImpl(LLVMContext &C) : Context(C), TheTrueVal(0), TheFalseVal(0) {} 
   
   /// Return a ConstantInt with the specified value and an implied Type. The
   /// type is the integer type that corresponds to the bit width of the value.
@@ -115,6 +120,20 @@ public:
   
   MDNode *getMDNode(Value*const* Vals, unsigned NumVals);
   
+  ConstantInt *getConstantIntTrue() {
+    if (TheTrueVal)
+      return TheTrueVal;
+    else
+      return (TheTrueVal = Context.getConstantInt(IntegerType::get(1), 1));
+  }
+  
+  ConstantInt *getConstantIntFalse() {
+    if (TheFalseVal)
+      return TheFalseVal;
+    else
+      return (TheFalseVal = Context.getConstantInt(IntegerType::get(1), 0));
+  }
+  
   void erase(MDString *M);
   void erase(MDNode *M);
 };