[SandboxVec][VecUtils][NFC] Move functions to VecUtils.cpp and add a VecUtils::dump()

Author: Vasileios Porpodas

llvm/include/llvm/Transforms/Vectorize/SandboxVectorizer/VecUtils.h

@@ -134,15 +134,13 @@ class VecUtils {
     return ScalarTy;
   }
   /// \Returns the first integer power of 2 that is <= Num.
-  static unsigned getFloorPowerOf2(unsigned Num) {
-    if (Num == 0)
-      return Num;
-    unsigned Mask = Num;
-    Mask >>= 1;
-    for (unsigned ShiftBy = 1; ShiftBy < sizeof(Num) * 8; ShiftBy <<= 1)
-      Mask |= Mask >> ShiftBy;
-    return Num & ~Mask;
-  }
+  static unsigned getFloorPowerOf2(unsigned Num);
+
+#ifndef NDEBUG
+  /// Helper dump function for debugging.
+  LLVM_DUMP_METHOD static void dump(ArrayRef<Value *> Bndl);
+  LLVM_DUMP_METHOD static void dump(ArrayRef<Instruction *> Bndl);
+#endif // NDEBUG
 };
 
 } // namespace llvm::sandboxir

llvm/lib/Transforms/Vectorize/CMakeLists.txt

@@ -13,6 +13,7 @@ add_llvm_component_library(LLVMVectorize
   SandboxVectorizer/SandboxVectorizerPassBuilder.cpp
   SandboxVectorizer/Scheduler.cpp
   SandboxVectorizer/SeedCollector.cpp
+  SandboxVectorizer/VecUtils.cpp
   SLPVectorizer.cpp
   Vectorize.cpp
   VectorCombine.cpp

llvm/lib/Transforms/Vectorize/SandboxVectorizer/VecUtils.cpp

@@ -0,0 +1,32 @@
+//===- VecUtils.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 "llvm/Transforms/Vectorize/SandboxVectorizer/VecUtils.h"
+
+namespace llvm::sandboxir {
+
+unsigned VecUtils::getFloorPowerOf2(unsigned Num) {
+  if (Num == 0)
+    return Num;
+  unsigned Mask = Num;
+  Mask >>= 1;
+  for (unsigned ShiftBy = 1; ShiftBy < sizeof(Num) * 8; ShiftBy <<= 1)
+    Mask |= Mask >> ShiftBy;
+  return Num & ~Mask;
+}
+
+#ifndef NDEBUG
+template <typename T> static void dumpImpl(ArrayRef<T *> Bndl) {
+  for (auto [Idx, V] : enumerate(Bndl))
+    dbgs() << Idx << "." << *V << "\n";
+}
+void VecUtils::dump(ArrayRef<Value *> Bndl) { dumpImpl(Bndl); }
+void VecUtils::dump(ArrayRef<Instruction *> Bndl) { dumpImpl(Bndl); }
+#endif // NDEBUG
+
+} // namespace llvm::sandboxir