[PATCH] [mips] Use isa<> instead of dyn_cast<> with unused value. NFC.

[Vasileios Kalintiris]

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D7615

Files:
  llvm/trunk/lib/Target/Mips/MipsSEISelLowering.cpp

Index: llvm/trunk/lib/Target/Mips/MipsSEISelLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/Mips/MipsSEISelLowering.cpp
+++ llvm/trunk/lib/Target/Mips/MipsSEISelLowering.cpp
@@ -2291,9 +2291,9 @@
 static bool isConstantOrUndef(const SDValue Op) {
   if (Op->getOpcode() == ISD::UNDEF)
     return true;
-  if (dyn_cast<ConstantSDNode>(Op))
+  if (isa<ConstantSDNode>(Op))
     return true;
-  if (dyn_cast<ConstantFPSDNode>(Op))
+  if (isa<ConstantFPSDNode>(Op))
     return true;
   return false;
 }

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