More LLVMContext-ification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74811 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/IPConstantPropagation.cpp b/lib/Transforms/IPO/IPConstantPropagation.cpp
index e4a9dea..d3869a8 100644
--- a/lib/Transforms/IPO/IPConstantPropagation.cpp
+++ b/lib/Transforms/IPO/IPConstantPropagation.cpp
@@ -19,6 +19,7 @@
 #include "llvm/Transforms/IPO.h"
 #include "llvm/Constants.h"
 #include "llvm/Instructions.h"
+#include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/Pass.h"
 #include "llvm/Analysis/ValueTracking.h"
@@ -133,7 +134,7 @@
       continue;
   
     Value *V = ArgumentConstants[i].first;
-    if (V == 0) V = UndefValue::get(AI->getType());
+    if (V == 0) V = Context->getUndef(AI->getType());
     AI->replaceAllUsesWith(V);
     ++NumArgumentsProped;
     MadeChange = true;
@@ -164,9 +165,9 @@
   const StructType *STy = dyn_cast<StructType>(F.getReturnType());
   if (STy)
     for (unsigned i = 0, e = STy->getNumElements(); i < e; ++i) 
-      RetVals.push_back(UndefValue::get(STy->getElementType(i)));
+      RetVals.push_back(Context->getUndef(STy->getElementType(i)));
   else
-    RetVals.push_back(UndefValue::get(F.getReturnType()));
+    RetVals.push_back(Context->getUndef(F.getReturnType()));
 
   unsigned NumNonConstant = 0;
   for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)