[llvm-commits] [llvm] r47219 - /llvm/trunk/lib/VMCore/ParameterAttributes.cpp

[Duncan Sands]

Author: baldrick
Date: Sat Feb 16 14:53:06 2008
New Revision: 47219

URL: http://llvm.org/viewvc/llvm-project?rev=47219&view=rev
Log:
Some micro-optimizations.

Modified:
    llvm/trunk/lib/VMCore/ParameterAttributes.cpp

Modified: llvm/trunk/lib/VMCore/ParameterAttributes.cpp
URL: 
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/VMCore/ParameterAttributes.cpp?rev=47219&r1=47218&r2=47219&view=diff

==============================================================================
--- llvm/trunk/lib/VMCore/ParameterAttributes.cpp (original)
+++ llvm/trunk/lib/VMCore/ParameterAttributes.cpp Sat Feb 16 14:53:06 2008
@@ -124,6 +124,7 @@
   if (!PAL) {
     // Strip any instances of ParamAttr::None from modVec before calling 'get'.
     ParamAttrsVector newVec;
+    newVec.reserve(modVec.size());
     for (unsigned i = 0, e = modVec.size(); i < e; ++i)
       if (modVec[i].attrs != ParamAttr::None)
         newVec.push_back(modVec[i]);
@@ -175,8 +176,8 @@
   if (NewAttrs == OldAttrs)
     return PAL;
 
-  ParamAttrsVector modVec;
-  modVec.push_back(ParamAttrsWithIndex::get(idx, NewAttrs));
+  ParamAttrsVector modVec(1);
+  modVec[0] = ParamAttrsWithIndex::get(idx, NewAttrs);
   return getModified(PAL, modVec);
 }
 
@@ -188,8 +189,8 @@
   if (NewAttrs == OldAttrs)
     return PAL;
 
-  ParamAttrsVector modVec;
-  modVec.push_back(ParamAttrsWithIndex::get(idx, NewAttrs));
+  ParamAttrsVector modVec(1);
+  modVec[0] = ParamAttrsWithIndex::get(idx, NewAttrs);
   return getModified(PAL, modVec);
 }
 


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