r239604 - [clang-format] Hoist vector allocation out of loop. NFC.

[Benjamin Kramer]

Author: d0k
Date: Fri Jun 12 08:06:57 2015
New Revision: 239604

URL: http://llvm.org/viewvc/llvm-project?rev=239604&view=rev
Log:
[clang-format] Hoist vector allocation out of loop. NFC.

Modified:
    cfe/trunk/lib/Format/FormatToken.cpp

Modified: cfe/trunk/lib/Format/FormatToken.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Format/FormatToken.cpp?rev=239604&r1=239603&r2=239604&view=diff
==============================================================================
--- cfe/trunk/lib/Format/FormatToken.cpp (original)
+++ cfe/trunk/lib/Format/FormatToken.cpp Fri Jun 12 08:06:57 2015
@@ -203,11 +203,14 @@ void CommaSeparatedList::precomputeForma
 
   // We can never place more than ColumnLimit / 3 items in a row (because of the
   // spaces and the comma).
-  for (unsigned Columns = 1; Columns <= Style.ColumnLimit / 3; ++Columns) {
+  unsigned MaxItems = Style.ColumnLimit / 3;
+  std::vector<unsigned> MinSizeInColumn;
+  MinSizeInColumn.reserve(MaxItems);
+  for (unsigned Columns = 1; Columns <= MaxItems; ++Columns) {
     ColumnFormat Format;
     Format.Columns = Columns;
     Format.ColumnSizes.resize(Columns);
-    std::vector<unsigned> MinSizeInColumn(Columns, UINT_MAX);
+    MinSizeInColumn.assign(Columns, UINT_MAX);
     Format.LineCount = 1;
     bool HasRowWithSufficientColumns = false;
     unsigned Column = 0;