Move all of the header files which are involved in modelling the LLVM IR
[oota-llvm.git] / lib / Transforms / Scalar / SROA.cpp
index 05401fe1b39d323c9b1bffedef33f72604e22539..420417187fadf764ae971a648ff680b818f90d2a 100644 (file)
 #include "llvm/Analysis/Loads.h"
 #include "llvm/Analysis/PtrUseVisitor.h"
 #include "llvm/Analysis/ValueTracking.h"
-#include "llvm/Constants.h"
 #include "llvm/DIBuilder.h"
-#include "llvm/DataLayout.h"
 #include "llvm/DebugInfo.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
-#include "llvm/IRBuilder.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/Operator.h"
 #include "llvm/InstVisitor.h"
-#include "llvm/Instructions.h"
-#include "llvm/IntrinsicInst.h"
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/Operator.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
@@ -2660,18 +2660,7 @@ private:
 
   /// \brief Compute a vector splat for a given element value.
   Value *getVectorSplat(IRBuilder<> &IRB, Value *V, unsigned NumElements) {
-    assert(NumElements > 0 && "Cannot splat to an empty vector.");
-
-    // First insert it into a one-element vector so we can shuffle it. It is
-    // really silly that LLVM's IR requires this in order to form a splat.
-    Value *Undef = UndefValue::get(VectorType::get(V->getType(), 1));
-    V = IRB.CreateInsertElement(Undef, V, IRB.getInt32(0),
-                                getName(".splatinsert"));
-
-    // Shuffle the value across the desired number of elements.
-    SmallVector<Constant*, 8> Mask(NumElements, IRB.getInt32(0));
-    V = IRB.CreateShuffleVector(V, Undef, ConstantVector::get(Mask),
-                                getName(".splat"));
+    V = IRB.CreateVectorSplat(NumElements, V, NamePrefix);
     DEBUG(dbgs() << "       splat: " << *V << "\n");
     return V;
   }