X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FAnalysis%2FMemoryDependenceAnalysis.h;h=47afd1b77b0e02eeeeda533b71ae2cef8ee9703a;hb=ec3bb4b660fc2f8353c510ebfc15277bcf28df8b;hp=b87f886c0065859441c6546c219e849b3cf68523;hpb=882b9276cb3a19ecc4fd307d8c0acd17574570a0;p=oota-llvm.git

diff --git a/include/llvm/Analysis/MemoryDependenceAnalysis.h b/include/llvm/Analysis/MemoryDependenceAnalysis.h
index b87f886c006..47afd1b77b0 100644
--- a/include/llvm/Analysis/MemoryDependenceAnalysis.h
+++ b/include/llvm/Analysis/MemoryDependenceAnalysis.h
@@ -391,14 +391,17 @@ namespace llvm {
     /// getPointerDependencyFrom - Return the instruction on which a memory
     /// location depends.  If isLoad is true, this routine ignores may-aliases
     /// with read-only operations.  If isLoad is false, this routine ignores
-    /// may-aliases with reads from read-only locations.
+    /// may-aliases with reads from read-only locations. If possible, pass
+    /// the query instruction as well; this function may take advantage of 
+    /// the metadata annotated to the query instruction to refine the result.
     ///
     /// Note that this is an uncached query, and thus may be inefficient.
     ///
     MemDepResult getPointerDependencyFrom(const AliasAnalysis::Location &Loc,
                                           bool isLoad,
                                           BasicBlock::iterator ScanIt,
-                                          BasicBlock *BB);
+                                          BasicBlock *BB,
+                                          Instruction *QueryInst = 0);
 
 
     /// getLoadLoadClobberFullWidthSize - This is a little bit of analysis that