[llvm-branch-commits] [llvm-branch] r202047 - do not call initTags when there are zero Uses; this will allow us to make initTags more performant at a very small cost

[Gabor Greif]

Author: ggreif
Date: Mon Feb 24 10:02:14 2014
New Revision: 202047

URL: http://llvm.org/viewvc/llvm-project?rev=202047&view=rev
Log:
do not call initTags when there are zero Uses; this will allow us to make 
initTags more performant at a very small cost

Modified:
    llvm/branches/ggreif/waymark-64-new/lib/IR/User.cpp

Modified: llvm/branches/ggreif/waymark-64-new/lib/IR/User.cpp
URL: 
http://llvm.org/viewvc/llvm-project/llvm/branches/ggreif/waymark-64-new/lib/IR/User.cpp?rev=202047&r1=202046&r2=202047&view=diff
==============================================================================
--- llvm/branches/ggreif/waymark-64-new/lib/IR/User.cpp (original)
+++ llvm/branches/ggreif/waymark-64-new/lib/IR/User.cpp Mon Feb 24 10:02:14 2014
@@ -63,7 +63,7 @@ void *User::operator new(size_t s, unsig
   User *Obj = reinterpret_cast<User*>(End);
   Obj->OperandList = Start;
   Obj->NumOperands = Us;
-  Use::initTags(Start, End);
+  if (Us) Use::initTags(Start, End);
   return Obj;
 }
 


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