Add support for the PPC isel instruction.

The isel (integer select) instruction is supported on the 440 and A2
embedded cores and on the POWER7.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159045 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h
index 7d9be55..0207c83 100644
--- a/lib/Target/PowerPC/PPCSubtarget.h
+++ b/lib/Target/PowerPC/PPCSubtarget.h
@@ -70,6 +70,7 @@
   bool HasAltivec;
   bool HasFSQRT;
   bool HasSTFIWX;
+  bool HasISEL;
   bool IsBookE;
   bool HasLazyResolverStubs;
   bool IsJITCodeModel;
@@ -141,6 +142,7 @@
   bool hasSTFIWX() const { return HasSTFIWX; }
   bool hasAltivec() const { return HasAltivec; }
   bool hasMFOCRF() const { return HasMFOCRF; }
+  bool hasISEL() const { return HasISEL; }
   bool isBookE() const { return IsBookE; }
 
   const Triple &getTargetTriple() const { return TargetTriple; }