[NewPassManager] Add tuning option: SLPVectorization [NFC].

Summary: Mirror tuning option from old pass manager in new pass manager.

Reviewers: chandlerc

Subscribers: mehdi_amini, jlebar, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D61616

llvm-svn: 360276

llvm/include/llvm/Passes/PassBuilder.h

@@ -81,6 +81,10 @@ public:
   /// that of the flag: `-vectorize-loops`.
   bool LoopVectorization;
 
+  /// Tuning option to enable/disable slp loop vectorization. Its default value
+  /// is that of the flag: `vectorize-slp`.
+  bool SLPVectorization;
+
   /// Tuning option to cap the number of calls to retrive clobbering accesses in
   /// MemorySSA, in LICM.
   unsigned LicmMssaOptCap;

llvm/include/llvm/Transforms/Vectorize/SLPVectorizer.h

@@ -55,6 +55,8 @@ class BoUpSLP;
 
 } // end namespace slpvectorizer
 
+extern cl::opt<bool> RunSLPVectorization;
+
 struct SLPVectorizerPass : public PassInfoMixin<SLPVectorizerPass> {
   using StoreList = SmallVector<StoreInst *, 8>;
   using StoreListMap = MapVector<Value *, StoreList>;

llvm/lib/Passes/PassBuilder.cpp

@@ -214,6 +214,7 @@ static cl::opt<bool>
 PipelineTuningOptions::PipelineTuningOptions() {
   LoopInterleaving = EnableLoopInterleaving;
   LoopVectorization = EnableLoopVectorization;
+  SLPVectorization = RunSLPVectorization;
   LicmMssaOptCap = SetLicmMssaOptCap;
   LicmMssaNoAccForPromotionCap = SetLicmMssaNoAccForPromotionCap;
 }
@@ -888,7 +889,8 @@ ModulePassManager PassBuilder::buildModuleOptimizationPipeline(
                                      sinkCommonInsts(true)));
 
   // Optimize parallel scalar instruction chains into SIMD instructions.
-  OptimizePM.addPass(SLPVectorizerPass());
+  if (PTO.SLPVectorization)
+    OptimizePM.addPass(SLPVectorizerPass());
 
   OptimizePM.addPass(InstCombinePass());
 

llvm/lib/Transforms/IPO/PassManagerBuilder.cpp

@@ -43,6 +43,7 @@
 #include "llvm/Transforms/Utils.h"
 #include "llvm/Transforms/Vectorize.h"
 #include "llvm/Transforms/Vectorize/LoopVectorize.h"
+#include "llvm/Transforms/Vectorize/SLPVectorizer.h"
 
 using namespace llvm;
 
@@ -50,10 +51,6 @@ static cl::opt<bool>
     RunPartialInlining("enable-partial-inlining", cl::init(false), cl::Hidden,
                        cl::ZeroOrMore, cl::desc("Run Partial inlinining pass"));
 
-static cl::opt<bool>
-RunSLPVectorization("vectorize-slp", cl::Hidden,
-                    cl::desc("Run the SLP vectorization passes"));
-
 static cl::opt<bool>
 UseGVNAfterVectorization("use-gvn-after-vectorization",
   cl::init(false), cl::Hidden,

llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

@@ -105,6 +105,10 @@ using namespace slpvectorizer;
 
 STATISTIC(NumVectorInstructions, "Number of vector instructions generated");
 
+cl::opt<bool>
+    llvm::RunSLPVectorization("vectorize-slp", cl::init(true), cl::Hidden,
+                              cl::desc("Run the SLP vectorization passes"));
+
 static cl::opt<int>
     SLPCostThreshold("slp-threshold", cl::init(0), cl::Hidden,
                      cl::desc("Only vectorize if you gain more than this "