Clean up redundant copies of Triple objects. NFC

Summary:

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: llvm-commits, rengolin, jholewinski

Differential Revision: http://reviews.llvm.org/D10382

llvm-svn: 239823
diff --git a/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp b/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
index 05cb6e1..c44d5d7 100644
--- a/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
+++ b/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
@@ -40,7 +40,7 @@
   Mangler *Mang = AP.Mang;
   const DataLayout *DL = TM.getDataLayout();
   MCContext &Ctx = AP.OutContext;
-  bool isDarwin = Triple(TM.getTargetTriple()).isOSDarwin();
+  bool isDarwin = TM.getTargetTriple().isOSDarwin();
 
   SmallString<128> Name;
   StringRef Suffix;