Add support for DenseMap/DenseSet count and find using const pointers

Summary:
Similar to SmallPtrSet, this makes find and count work with both const
referneces and const pointers.

Reviewers: dblaikie

Subscribers: llvm-commits, mzolotukhin

Differential Revision: https://reviews.llvm.org/D30713

llvm-svn: 297424

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 080f265b258..223986cde64 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -3657,7 +3657,7 @@ void InnerLoopVectorizer::fixupIVUsers(PHINode *OrigPhi,
 
 namespace {
 struct CSEDenseMapInfo {
-  static bool canHandle(Instruction *I) {
+  static bool canHandle(const Instruction *I) {
     return isa<InsertElementInst>(I) || isa<ExtractElementInst>(I) ||
            isa<ShuffleVectorInst>(I) || isa<GetElementPtrInst>(I);
   }
@@ -3667,12 +3667,12 @@ struct CSEDenseMapInfo {
   static inline Instruction *getTombstoneKey() {
     return DenseMapInfo<Instruction *>::getTombstoneKey();
   }
-  static unsigned getHashValue(Instruction *I) {
+  static unsigned getHashValue(const Instruction *I) {
     assert(canHandle(I) && "Unknown instruction!");
     return hash_combine(I->getOpcode(), hash_combine_range(I->value_op_begin(),
                                                            I->value_op_end()));
   }
-  static bool isEqual(Instruction *LHS, Instruction *RHS) {
+  static bool isEqual(const Instruction *LHS, const Instruction *RHS) {
     if (LHS == getEmptyKey() || RHS == getEmptyKey() ||
         LHS == getTombstoneKey() || RHS == getTombstoneKey())
       return LHS == RHS;