Introduce a new MemDep::getNonLocalPointerDependency

method.  This will eventually take over load/store dep
queries from getNonLocalDependency.  For now it works
fine, but is incredibly slow because it does no caching.
Lets not switch GVN to use it until that is fixed :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60649 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/include/llvm/Analysis/MemoryDependenceAnalysis.h b/include/llvm/Analysis/MemoryDependenceAnalysis.h
index 40c445c..819035d 100644
--- a/include/llvm/Analysis/MemoryDependenceAnalysis.h
+++ b/include/llvm/Analysis/MemoryDependenceAnalysis.h
@@ -214,6 +214,18 @@ namespace llvm {
     /// that.
     const NonLocalDepInfo &getNonLocalDependency(Instruction *QueryInst);
     
+    
+    /// getNonLocalPointerDependency - Perform a full dependency query for an
+    /// access to the specified (non-volatile) memory location, returning the
+    /// set of instructions that either define or clobber the value.
+    ///
+    /// This method assumes the pointer has a "NonLocal" dependency within BB
+    /// and assumes that Result is empty when you call it.
+    ///
+    void getNonLocalPointerDependency(Value *Pointer, bool isLoad,
+                                      BasicBlock *BB,
+                                     SmallVectorImpl<NonLocalDepEntry> &Result);
+    
     /// removeInstruction - Remove an instruction from the dependence analysis,
     /// updating the dependence of instructions that previously depended on it.
     void removeInstruction(Instruction *InstToRemove);