[VPlan] Rename VPlanHCFGTransforms to VPlanTransforms (NFC).

[fhahn]

Summary

The file is intended to gather various VPlan transformations, not only
CFG related transforms. Actually, the only transformation there is not
CFG related.

[merge_guards_bot]

Build result: pass - 60310 tests passed, 0 failed and 732 were skipped.

Log files: console-log.txt, CMakeCache.txt

[gilr]

llvm/lib/Transforms/Vectorize/CMakeLists.txt

9

Lexicographic order.

[fhahn]

rebase & move VPlanTransforms.cpp in CmakeLists.txt

[fhahn]

clang-format

[merge_guards_bot]

Build result: pass - 60565 tests passed, 0 failed and 726 were skipped.

Log files: console-log.txt, CMakeCache.txt

[merge_guards_bot]

Build result: pass - 60565 tests passed, 0 failed and 726 were skipped.

Log files: console-log.txt, CMakeCache.txt

[gilr]

LGTM!

llvm/lib/Transforms/Vectorize/CMakeLists.txt

 add_llvm_component_library(LLVMVectorize
   LoadStoreVectorizer.cpp
   LoopVectorizationLegality.cpp
   LoopVectorize.cpp
   SLPVectorizer.cpp
   Vectorize.cpp
   VPlan.cpp
   VPlanHCFGBuilder.cpp
-  VPlanHCFGTransforms.cpp
+  VPlanTransforms.cpp
   VPlanPredicator.cpp
   VPlanSLP.cpp
   VPlanVerifier.cpp
 
   ADDITIONAL_HEADER_DIRS
   ${LLVM_MAIN_INCLUDE_DIR}/llvm/Transforms
 
   DEPENDS
   intrinsics_gen
   )

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Transforms/Vectorize/LoopVectorize.h"
 #include "LoopVectorizationPlanner.h"
 #include "VPRecipeBuilder.h"
 #include "VPlan.h"
 #include "VPlanHCFGBuilder.h"
-#include "VPlanHCFGTransforms.h"
 #include "VPlanPredicator.h"
+#include "VPlanTransforms.h"
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/DenseMapInfo.h"
 #include "llvm/ADT/Hashing.h"
 #include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/None.h"
 #include "llvm/ADT/Optional.h"
if (EnableVPlanPredication) {
     VPP.predicate();
 
     // Avoid running transformation to recipes until masked code generation in
     // VPlan-native path is in place.
     return Plan;
   }
 
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(
-      Plan, Legal->getInductionVars(), DeadInstructions);
+  VPlanTransforms::VPInstructionsToVPRecipes(Plan, Legal->getInductionVars(),
+                                             DeadInstructions);
 
   return Plan;
 }
 
 Value* LoopVectorizationPlanner::VPCallbackILV::
 getOrCreateVectorValues(Value *V, unsigned Part) {
       return ILV.getOrCreateVectorValue(V, Part);
 }

llvm/lib/Transforms/Vectorize/VPlan.h

public:
   iplist<VPRecipeBase>::iterator eraseFromParent();
 };
 
 /// This is a concrete Recipe that models a single VPlan-level instruction.
 /// While as any Recipe it may generate a sequence of IR instructions when
 /// executed, these instructions would always form a single-def expression as
 /// the VPInstruction is also a single def-use vertex.
 class VPInstruction : public VPUser, public VPRecipeBase {
-  friend class VPlanHCFGTransforms;
   friend class VPlanSlp;
 
 public:
   /// VPlan opcodes, extending LLVM IR with idiomatics instructions.
   enum {
     Not = Instruction::OtherOpsEnd + 1,
     ICmpULE,
     SLPLoad,

llvm/lib/Transforms/Vectorize/VPlanTransforms.h

-//===- VPlanHCFGTransforms.h - Utility VPlan to VPlan transforms ----------===//
+//===- VPlanTransforms.h - Utility VPlan to VPlan transforms --------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
 /// This file provides utility VPlan to VPlan transformations.
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_TRANSFORMS_VECTORIZE_VPLANHCFGTRANSFORMS_H
-#define LLVM_TRANSFORMS_VECTORIZE_VPLANHCFGTRANSFORMS_H
+#ifndef LLVM_TRANSFORMS_VECTORIZE_VPLANTRANSFORMS_H
+#define LLVM_TRANSFORMS_VECTORIZE_VPLANTRANSFORMS_H
 
 #include "VPlan.h"
 #include "llvm/IR/Instruction.h"
 #include "llvm/Transforms/Vectorize/LoopVectorizationLegality.h"
 
 namespace llvm {
 
-class VPlanHCFGTransforms {
+class VPlanTransforms {
 
 public:
   /// Replaces the VPInstructions in \p Plan with corresponding
   /// widen recipes.
   static void VPInstructionsToVPRecipes(
       VPlanPtr &Plan,
       LoopVectorizationLegality::InductionList *Inductions,
       SmallPtrSetImpl<Instruction *> &DeadInstructions);
 };
 
 } // namespace llvm
 
-#endif // LLVM_TRANSFORMS_VECTORIZE_VPLANHCFGTRANSFORMS_H
+#endif // LLVM_TRANSFORMS_VECTORIZE_VPLANTRANSFORMS_H

llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp

-//===-- VPlanHCFGTransforms.cpp - Utility VPlan to VPlan transforms -------===//
+//===-- VPlanTransforms.cpp - Utility VPlan to VPlan transforms -----------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
 /// This file implements a set of utility VPlan to VPlan transformations.
 ///
 //===----------------------------------------------------------------------===//
 
-#include "VPlanHCFGTransforms.h"
+#include "VPlanTransforms.h"
 #include "llvm/ADT/PostOrderIterator.h"
 
 using namespace llvm;
 
-void VPlanHCFGTransforms::VPInstructionsToVPRecipes(
-    VPlanPtr &Plan,
-    LoopVectorizationLegality::InductionList *Inductions,
+void VPlanTransforms::VPInstructionsToVPRecipes(
+    VPlanPtr &Plan, LoopVectorizationLegality::InductionList *Inductions,
     SmallPtrSetImpl<Instruction *> &DeadInstructions) {
 
   auto *TopRegion = cast<VPRegionBlock>(Plan->getEntry());
   ReversePostOrderTraversal<VPBlockBase *> RPOT(TopRegion->getEntry());
 
   // Condition bit VPValues get deleted during transformation to VPRecipes.
   // Create new VPValues and save away as condition bits. These will be deleted
   // after finalizing the vector IR basic blocks.

llvm/lib/Transforms/Vectorize/VPlanValue.h

 class VPUser;
 
 // This is the base class of the VPlan Def/Use graph, used for modeling the data
 // flow into, within and out of the VPlan. VPValues can stand for live-ins
 // coming from the input IR, instructions which VPlan will generate if executed
 // and live-outs which the VPlan will need to fix accordingly.
 class VPValue {
   friend class VPBuilder;
-  friend class VPlanHCFGTransforms;
+  friend class VPlanTransforms;
   friend class VPBasicBlock;
   friend class VPInterleavedAccessInfo;
 
 private:
   const unsigned char SubclassID; ///< Subclass identifier (for isa/dyn_cast).
 
   SmallVector<VPUser *, 1> Users;
 

llvm/unittests/Transforms/Vectorize/VPlanHCFGTest.cpp

 //===- llvm/unittest/Transforms/Vectorize/VPlanHCFGTest.cpp ---------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "../lib/Transforms/Vectorize/VPlan.h"
-#include "../lib/Transforms/Vectorize/VPlanHCFGTransforms.h"
+#include "../lib/Transforms/Vectorize/VPlanTransforms.h"
 #include "VPlanTestBase.h"
 #include "gtest/gtest.h"
 
 namespace llvm {
 namespace {
 
 class VPlanHCFGTest : public VPlanTestBase {};
 
TEST_F(VPlanHCFGTest, testBuildHCFGInnerLoop) {
   VPInstruction *ICmp = dyn_cast<VPInstruction>(&*Iter++);
   EXPECT_EQ(Instruction::ICmp, ICmp->getOpcode());
   EXPECT_EQ(2u, ICmp->getNumOperands());
   EXPECT_EQ(IndvarAdd, ICmp->getOperand(0));
   EXPECT_EQ(VecBB->getCondBit(), ICmp);
 
   LoopVectorizationLegality::InductionList Inductions;
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(Plan, &Inductions,
-                                                 DeadInstructions);
+  VPlanTransforms::VPInstructionsToVPRecipes(Plan, &Inductions,
 }
 
 TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
   const char *ModuleString =
       "define void @f(i32* %A, i64 %N) {\n"
       "entry:\n"
       "  br label %for.body\n"
       "for.body:\n"
TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
   Module &M = parseModule(ModuleString);
 
   Function *F = M.getFunction("f");
   BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
   auto Plan = buildHCFG(LoopHeader);
 
   LoopVectorizationLegality::InductionList Inductions;
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(Plan, &Inductions,
-                                                 DeadInstructions);
+  VPlanTransforms::VPInstructionsToVPRecipes(Plan, &Inductions,
 
   VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
   EXPECT_NE(nullptr, Entry->getSingleSuccessor());
   EXPECT_EQ(0u, Entry->getNumPredecessors());
   EXPECT_EQ(1u, Entry->getNumSuccessors());
 
   VPBasicBlock *VecBB = Entry->getSingleSuccessor()->getEntryBasicBlock();
   EXPECT_EQ(6u, VecBB->size());

llvm/unittests/Transforms/Vectorize/VPlanSlpTest.cpp

 //===- llvm/unittest/Transforms/Vectorize/VPlanSlpTest.cpp ---------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "../lib/Transforms/Vectorize/VPlan.h"
 #include "../lib/Transforms/Vectorize/VPlanHCFGBuilder.h"
-#include "../lib/Transforms/Vectorize/VPlanHCFGTransforms.h"
 #include "VPlanTestBase.h"
 #include "llvm/Analysis/VectorUtils.h"
 #include "gtest/gtest.h"
 
 namespace llvm {
 namespace {
 
 class VPlanSlpTest : public VPlanTestBase {