vendor/llvm/llvm-trunk-r161861

1 files changed, 13 insertions, 0 deletions

diff --git a/include/llvm/Analysis/AliasAnalysis.h b/include/llvm/Analysis/AliasAnalysis.h
index b823f71a2217..674868a02633 100644
--- a/include/llvm/Analysis/AliasAnalysis.h
+++ b/include/llvm/Analysis/AliasAnalysis.h
@@ -50,6 +50,7 @@ class Pass;
 class AnalysisUsage;
 class MemTransferInst;
 class MemIntrinsic;
+class DominatorTree;
 
 class AliasAnalysis {
 protected:
@@ -462,6 +463,18 @@ public:
   virtual ModRefResult getModRefInfo(ImmutableCallSite CS1,
                                      ImmutableCallSite CS2);
 
+  /// callCapturesBefore - Return information about whether a particular call 
+  /// site modifies or reads the specified memory location.
+  ModRefResult callCapturesBefore(const Instruction *I,
+                                  const AliasAnalysis::Location &MemLoc,
+                                  DominatorTree *DT);
+
+  /// callCapturesBefore - A convenience wrapper.
+  ModRefResult callCapturesBefore(const Instruction *I, const Value *P,
+                                  uint64_t Size, DominatorTree *DT) {
+    return callCapturesBefore(I, Location(P, Size), DT);
+  }
+
   //===--------------------------------------------------------------------===//
   /// Higher level methods for querying mod/ref information.
   ///