[PATCH] D13257: [LAA] LLE 4/6: APIs to access the dependent instructions for a dependence, NFC

[Adam Nemet via llvm-commits]

anemet created this revision.
anemet added a reviewer: hfinkel.
anemet added a subscriber: llvm-commits.

The functions use LAI and MemoryDepChecker classes so they need to be
defined after those definitions outside of the Dependence class.

Will be used by the LoopLoadElimination pass.

http://reviews.llvm.org/D13257

Files:
  include/llvm/Analysis/LoopAccessAnalysis.h

Index: include/llvm/Analysis/LoopAccessAnalysis.h
===================================================================
--- include/llvm/Analysis/LoopAccessAnalysis.h
+++ include/llvm/Analysis/LoopAccessAnalysis.h
@@ -32,6 +32,7 @@
 class ScalarEvolution;
 class Loop;
 class SCEV;
+class LoopAccessInfo;
 
 /// Optimization analysis message produced during vectorization. Messages inform
 /// the user why vectorization did not occur.
@@ -169,6 +170,11 @@
     Dependence(unsigned Source, unsigned Destination, DepType Type)
         : Source(Source), Destination(Destination), Type(Type) {}
 
+    /// \brief Return the source instruction of the dependence.
+    Instruction *getSource(const LoopAccessInfo &LAI) const;
+    /// \brief Return the destination instruction of the dependence.
+    Instruction *getDestination(const LoopAccessInfo &LAI) const;
+
     /// \brief Dependence types that don't prevent vectorization.
     static bool isSafeForVectorization(DepType Type);
 
@@ -647,6 +653,17 @@
   DominatorTree *DT;
   LoopInfo *LI;
 };
+
+inline Instruction *MemoryDepChecker::Dependence::getSource(
+    const LoopAccessInfo &LAI) const {
+  return LAI.getDepChecker().getMemoryInstructions()[Source];
+}
+
+inline Instruction *MemoryDepChecker::Dependence::getDestination(
+    const LoopAccessInfo &LAI) const {
+  return LAI.getDepChecker().getMemoryInstructions()[Destination];
+}
+
 } // End llvm namespace
 
 #endif


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