[llvm-commits] [llvm] r44295 - /llvm/trunk/lib/Analysis/ScalarEvolution.cpp

[Chris Lattner]

Author: lattner
Date: Fri Nov 23 16:36:49 2007
New Revision: 44295

URL: http://llvm.org/viewvc/llvm-project?rev=44295&view=rev
Log:
simplify some code.

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=44295&r1=44294&r2=44295&view=diff

==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Fri Nov 23 16:36:49 2007
@@ -1416,11 +1416,7 @@
 /// it returns 2.  If S is guaranteed to be 0, it returns the bitwidth of S.
 static uint32_t GetMinTrailingZeros(SCEVHandle S) {
   if (SCEVConstant *C = dyn_cast<SCEVConstant>(S))
-    // APInt::countTrailingZeros() returns the number of trailing zeros in its
-    // internal representation, which length may be greater than the 
represented
-    // value bitwidth. This is why we use a min operation here.
-    return std::min(C->getValue()->getValue().countTrailingZeros(),
-                    C->getBitWidth());
+    return C->getValue()->getValue().countTrailingZeros();
 
   if (SCEVTruncateExpr *T = dyn_cast<SCEVTruncateExpr>(S))
     return std::min(GetMinTrailingZeros(T->getOperand()), T->getBitWidth());


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