Add LoadStoreVectorizer pass

This was contributed by Apple, and I've been working on minimal cleanups and generalizing it. llvm-svn: 274293
llvm · Jun 30, 2016 · 08debb0 · 08debb0
1 parent a62287b
commit 08debb0
Showing 13 changed files with 1,825 additions and 1 deletion.
diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
@@ -169,6 +169,7 @@ void initializeLiveStacksPass(PassRegistry&);
 void initializeLiveVariablesPass(PassRegistry&);
 void initializeLoadCombinePass(PassRegistry&);
 void initializeLoaderPassPass(PassRegistry&);
+void initializeLoadStoreVectorizerPass(PassRegistry&);
 void initializeLocalStackSlotPassPass(PassRegistry&);
 void initializeLoopAccessAnalysisPass(PassRegistry&);
 void initializeLoopDataPrefetchPass(PassRegistry&);

diff --git a/llvm/include/llvm/LinkAllPasses.h b/llvm/include/llvm/LinkAllPasses.h
@@ -183,6 +183,7 @@ namespace {
       (void) llvm::createInstructionSimplifierPass();
       (void) llvm::createLoopVectorizePass();
       (void) llvm::createSLPVectorizerPass();
+      (void) llvm::createLoadStoreVectorizerPass(128);
       (void) llvm::createBBVectorizePass();
       (void) llvm::createPartiallyInlineLibCallsPass();
       (void) llvm::createScalarizerPass();

diff --git a/llvm/include/llvm/Transforms/Vectorize.h b/llvm/include/llvm/Transforms/Vectorize.h
@@ -139,6 +139,13 @@ Pass *createSLPVectorizerPass();
 bool vectorizeBasicBlock(Pass *P, BasicBlock &BB,
                          const VectorizeConfig &C = VectorizeConfig());
 
+//===----------------------------------------------------------------------===//
+//
+// LoadStoreVectorizer - Create vector loads and stores, but leave scalar
+// operations.
+//
+Pass *createLoadStoreVectorizerPass(unsigned VecRegSize = 128);
+
 } // End llvm namespace
 
 #endif
diff --git a/llvm/lib/Transforms/Vectorize/CMakeLists.txt b/llvm/lib/Transforms/Vectorize/CMakeLists.txt
@@ -1,8 +1,9 @@
 add_llvm_library(LLVMVectorize
   BBVectorize.cpp
-  Vectorize.cpp
+  LoadStoreVectorizer.cpp
   LoopVectorize.cpp
   SLPVectorizer.cpp
+  Vectorize.cpp
 
   ADDITIONAL_HEADER_DIRS
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/Transforms