[llvm-commits] [llvm] r112431 - /llvm/trunk/lib/Analysis/ScalarEvolution.cpp

[Dan Gohman]

Author: djg
Date: Sun Aug 29 10:07:13 2010
New Revision: 112431

URL: http://llvm.org/viewvc/llvm-project?rev=112431&view=rev
Log:
Micro-optimize GroupByComplexity.

Modified:
    llvm/trunk/lib/Analysis/ScalarEvolution.cpp

Modified: llvm/trunk/lib/Analysis/ScalarEvolution.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/ScalarEvolution.cpp?rev=112431&r1=112430&r2=112431&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Sun Aug 29 10:07:13 2010
@@ -704,8 +704,9 @@
   if (Ops.size() == 2) {
     // This is the common case, which also happens to be trivially simple.
     // Special case it.
-    if (SCEVComplexityCompare(LI)(Ops[1], Ops[0]))
-      std::swap(Ops[0], Ops[1]);
+    const SCEV *&LHS = Ops[0], *&RHS = Ops[1];
+    if (SCEVComplexityCompare(LI)(RHS, LHS))
+      std::swap(LHS, RHS);
     return;
   }