[PATCH] D142574: [llvm] Replace array allocation pattern by SmallVector in ComputeMappedEditDistance

[serge via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG3ab51fff3c2a: [llvm] Replace array allocation pattern by SmallVector in… (authored by serge-sans-paille).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142574/new/

https://reviews.llvm.org/D142574

Files:
  llvm/include/llvm/ADT/edit_distance.h


Index: llvm/include/llvm/ADT/edit_distance.h
===================================================================
--- llvm/include/llvm/ADT/edit_distance.h
+++ llvm/include/llvm/ADT/edit_distance.h
@@ -18,7 +18,6 @@
 
 #include "llvm/ADT/ArrayRef.h"
 #include <algorithm>
-#include <memory>
 
 namespace llvm {
 
@@ -70,16 +69,8 @@
       return MaxEditDistance + 1;
   }
 
-  const unsigned SmallBufferSize = 64;
-  unsigned SmallBuffer[SmallBufferSize];
-  std::unique_ptr<unsigned[]> Allocated;
-  unsigned *Row = SmallBuffer;
-  if (n + 1 > SmallBufferSize) {
-    Row = new unsigned[n + 1];
-    Allocated.reset(Row);
-  }
-
-  for (unsigned i = 1; i <= n; ++i)
+  SmallVector<unsigned, 64> Row(n + 1);
+  for (unsigned i = 1; i < Row.size(); ++i)
     Row[i] = i;
 
   for (typename ArrayRef<T>::size_type y = 1; y <= m; ++y) {


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