[llvm] r272758 - [SCEV] Use cast<> instead of dyn_cast; NFC

[Sanjoy Das via llvm-commits]

Author: sanjoy
Date: Wed Jun 15 01:53:51 2016
New Revision: 272758

URL: http://llvm.org/viewvc/llvm-project?rev=272758&view=rev
Log:
[SCEV] Use cast<> instead of dyn_cast; NFC

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=272758&r1=272757&r2=272758&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/ScalarEvolution.cpp (original)
+++ llvm/trunk/lib/Analysis/ScalarEvolution.cpp Wed Jun 15 01:53:51 2016
@@ -8674,8 +8674,7 @@ ScalarEvolution::howManyLessThans(const
     // overflow, in which case if RHS - Start is a constant, we don't need to
     // do a max operation since we can just figure it out statically
     if (NoWrap && isa<SCEVConstant>(Diff)) {
-      APInt D = dyn_cast<const SCEVConstant>(Diff)->getAPInt();
-      if (D.isNegative())
+      if (cast<SCEVConstant>(Diff)->getAPInt().isNegative())
         End = Start;
     } else
       End = IsSigned ? getSMaxExpr(RHS, Start)
@@ -8761,8 +8760,7 @@ ScalarEvolution::howManyGreaterThans(con
     // overflow, in which case if RHS - Start is a constant, we don't need to
     // do a max operation since we can just figure it out statically
     if (NoWrap && isa<SCEVConstant>(Diff)) {
-      APInt D = dyn_cast<const SCEVConstant>(Diff)->getAPInt();
-      if (!D.isNegative())
+      if (!cast<SCEVConstant>(Diff)->getAPInt().isNegative())
         End = Start;
     } else
       End = IsSigned ? getSMinExpr(RHS, Start)