[VPlan] Rename VPlanHCFGTransforms to VPlanTransforms (NFC).

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

Reviewers: Ayal, gilr, hsaito, rengolin

Reviewed By: gilr

Differential Revision: https://reviews.llvm.org/D70732

lib/Transforms/Vectorize/CMakeLists.txt

@@ -6,9 +6,9 @@ add_llvm_component_library(LLVMVectorize
   Vectorize.cpp
   VPlan.cpp
   VPlanHCFGBuilder.cpp
-  VPlanHCFGTransforms.cpp
   VPlanPredicator.cpp
   VPlanSLP.cpp
+  VPlanTransforms.cpp
   VPlanVerifier.cpp
 
   ADDITIONAL_HEADER_DIRS

lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -58,8 +58,8 @@
 #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"
@@ -7262,9 +7262,8 @@ VPlanPtr LoopVectorizationPlanner::buildVPlan(VFRange &Range) {
   }
 
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(
+  VPlanTransforms::VPInstructionsToVPRecipes(
       OrigLoop, Plan, Legal->getInductionVars(), DeadInstructions);
-
   return Plan;
 }
 

lib/Transforms/Vectorize/VPlan.h

@@ -641,7 +641,6 @@ public:
 /// 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:

lib/Transforms/Vectorize/VPlanTransforms.cpp

@@ -1,4 +1,4 @@
-//===-- 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.
@@ -11,12 +11,12 @@
 ///
 //===----------------------------------------------------------------------===//
 
-#include "VPlanHCFGTransforms.h"
+#include "VPlanTransforms.h"
 #include "llvm/ADT/PostOrderIterator.h"
 
 using namespace llvm;
 
-void VPlanHCFGTransforms::VPInstructionsToVPRecipes(
+void VPlanTransforms::VPInstructionsToVPRecipes(
     Loop *OrigLoop, VPlanPtr &Plan,
     LoopVectorizationLegality::InductionList *Inductions,
     SmallPtrSetImpl<Instruction *> &DeadInstructions) {

lib/Transforms/Vectorize/VPlanTransforms.h

@@ -1,4 +1,4 @@
-//===- 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.
@@ -10,8 +10,8 @@
 /// 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"
@@ -19,7 +19,7 @@
 
 namespace llvm {
 
-class VPlanHCFGTransforms {
+class VPlanTransforms {
 
 public:
   /// Replaces the VPInstructions in \p Plan with corresponding
@@ -32,4 +32,4 @@ public:
 
 } // namespace llvm
 
-#endif // LLVM_TRANSFORMS_VECTORIZE_VPLANHCFGTRANSFORMS_H
+#endif // LLVM_TRANSFORMS_VECTORIZE_VPLANTRANSFORMS_H

lib/Transforms/Vectorize/VPlanValue.h

@@ -37,7 +37,7 @@ class VPUser;
 // 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;
 

unittests/Transforms/Vectorize/VPlanHCFGTest.cpp

@@ -7,7 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #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"
 
@@ -89,8 +89,8 @@ TEST_F(VPlanHCFGTest, testBuildHCFGInnerLoop) {
 
   LoopVectorizationLegality::InductionList Inductions;
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(
-      LI->getLoopFor(LoopHeader), Plan, &Inductions, DeadInstructions);
+  VPlanTransforms::VPInstructionsToVPRecipes(LI->getLoopFor(LoopHeader), Plan,
+                                             &Inductions, DeadInstructions);
 }
 
 TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
@@ -119,8 +119,8 @@ TEST_F(VPlanHCFGTest, testVPInstructionToVPRecipesInner) {
 
   LoopVectorizationLegality::InductionList Inductions;
   SmallPtrSet<Instruction *, 1> DeadInstructions;
-  VPlanHCFGTransforms::VPInstructionsToVPRecipes(
-      LI->getLoopFor(LoopHeader), Plan, &Inductions, DeadInstructions);
+  VPlanTransforms::VPInstructionsToVPRecipes(LI->getLoopFor(LoopHeader), Plan,
+                                             &Inductions, DeadInstructions);
 
   VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
   EXPECT_NE(nullptr, Entry->getSingleSuccessor());

unittests/Transforms/Vectorize/VPlanSlpTest.cpp

@@ -8,7 +8,6 @@
 
 #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"