[llvm-commits] [llvm] r101253 - /llvm/trunk/lib/Transforms/Scalar/Reg2Mem.cpp

[Gabor Greif]

Author: ggreif
Date: Wed Apr 14 11:48:56 2010
New Revision: 101253

URL: http://llvm.org/viewvc/llvm-project?rev=101253&view=rev
Log:
performance: cache the dereferenced use_iterator

Modified:
    llvm/trunk/lib/Transforms/Scalar/Reg2Mem.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/Reg2Mem.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/Reg2Mem.cpp?rev=101253&r1=101252&r2=101253&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/Reg2Mem.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/Reg2Mem.cpp Wed Apr 14 11:48:56 2010
@@ -46,10 +46,11 @@
    bool valueEscapes(const Instruction *Inst) const {
      const BasicBlock *BB = Inst->getParent();
       for (Value::const_use_iterator UI = Inst->use_begin(),E = Inst->use_end();
-           UI != E; ++UI)
-        if (cast<Instruction>(*UI)->getParent() != BB ||
-            isa<PHINode>(*UI))
+           UI != E; ++UI) {
+        const Instruction *I = cast<Instruction>(*UI);
+        if (I->getParent() != BB || isa<PHINode>(I))
           return true;
+      }
       return false;
     }