Add basic support for performing whole-function RLE.

Note: This has not yet been thoroughly tested.  Use at your own risk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40489 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 2 deletions

diff --git a/include/llvm/Analysis/MemoryDependenceAnalysis.h b/include/llvm/Analysis/MemoryDependenceAnalysis.h
index 8f4fca0..4428bb6 100644
--- a/include/llvm/Analysis/MemoryDependenceAnalysis.h
+++ b/include/llvm/Analysis/MemoryDependenceAnalysis.h
@@ -38,7 +38,8 @@ class MemoryDependenceAnalysis : public FunctionPass {
   
     Instruction* getCallSiteDependency(CallSite C, Instruction* start,
                                        bool local = true);
-    SmallPtrSet<Instruction*, 4> nonLocalHelper(Instruction* query, BasicBlock* block);
+    bool nonLocalHelper(Instruction* query, BasicBlock* block,
+                        DenseMap<BasicBlock*, Value*>& resp);
   public:
     
     static Instruction* NonLocal;
@@ -67,7 +68,8 @@ class MemoryDependenceAnalysis : public FunctionPass {
     Instruction* getDependency(Instruction* query, Instruction* start = 0,
                                BasicBlock* block = 0);
     
-    SmallPtrSet<Instruction*, 4> getNonLocalDependency(Instruction* query);
+    bool getNonLocalDependency(Instruction* query,
+                               DenseMap<BasicBlock*, Value*>& resp);
     
     /// removeInstruction - Remove an instruction from the dependence analysis,
     /// updating the dependence of instructions that previously depended on it.