ARM: teach LLVM that Cortex-A7 is very similar to A8.

llvm-svn: 205314
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index e76cc85..3ffc72e 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -265,6 +265,7 @@
   bool hasV8Ops()   const { return HasV8Ops;  }
 
   bool isCortexA5() const { return ARMProcFamily == CortexA5; }
+  bool isCortexA7() const { return ARMProcFamily == CortexA7; }
   bool isCortexA8() const { return ARMProcFamily == CortexA8; }
   bool isCortexA9() const { return ARMProcFamily == CortexA9; }
   bool isCortexA15() const { return ARMProcFamily == CortexA15; }