Add support for printing out statistics information when -stats is added to
the command line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2601 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/ConstantMerge.cpp b/lib/Transforms/IPO/ConstantMerge.cpp
index 146911e..11191f5 100644
--- a/lib/Transforms/IPO/ConstantMerge.cpp
+++ b/lib/Transforms/IPO/ConstantMerge.cpp
@@ -19,6 +19,9 @@
#include "llvm/Module.h"
#include "llvm/Function.h"
#include "llvm/Pass.h"
+#include "Support/StatisticReporter.h"
+
+static Statistic<> NumMerged("constmerge\t\t- Number of global constants merged");
// mergeDuplicateConstants - Workhorse for the pass. This eliminates duplicate
// constants, starting at global ConstantNo, and adds vars to the map if they
@@ -50,6 +53,7 @@
delete GList.remove(GList.begin()+ConstantNo);
--ConstantNo; // Don't skip the next constant.
+ ++NumMerged;
MadeChanges = true;
}
}