Some enhancements for memcpy / memset inline expansion.

[oota-llvm.git] / include / llvm / Analysis / ScalarEvolutionExpander.h

diff --git a/include/llvm/Analysis/ScalarEvolutionExpander.h b/include/llvm/Analysis/ScalarEvolutionExpander.h
index c22fc3ab74b75590e9ef475cf33ffe28f77fe95d..95772a887ffcecafea3d1762207ebe3d82852892 100644 (file)
--- a/include/llvm/Analysis/ScalarEvolutionExpander.h
+++ b/include/llvm/Analysis/ScalarEvolutionExpander.h
@@ -16,7 +16,7 @@
 
 #include "llvm/Analysis/ScalarEvolutionExpressions.h"
 #include "llvm/Analysis/ScalarEvolutionNormalization.h"
-#include "llvm/Support/IRBuilder.h"
+#include "llvm/IRBuilder.h"
 #include "llvm/Support/TargetFolder.h"
 #include "llvm/Support/ValueHandle.h"
 #include <set>
@@ -24,6 +24,10 @@
 namespace llvm {
   class TargetLowering;
 
+  /// Return true if the given expression is safe to expand in the sense that
+  /// all materialized values are safe to speculate.
+  bool isSafeToExpand(const SCEV *S);
+
   /// SCEVExpander - This class uses information about analyze scalars to
   /// rewrite expressions in canonical form.
   ///