ARM: Fix a few copy-paste errors.

s/X86/ARM/

llvm-svn: 171789
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
index dab7f17..7745218 100644
--- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
@@ -52,8 +52,8 @@
 }
 
 void ARMBaseTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
-  // Add first the target-independent BasicTTI pass, then our X86 pass. This
-  // allows the X86 pass to delegate to the target independent layer when
+  // Add first the target-independent BasicTTI pass, then our ARM pass. This
+  // allows the ARM pass to delegate to the target independent layer when
   // appropriate.
   PM.add(createBasicTargetTransformInfoPass(getTargetLowering()));
   PM.add(createARMTargetTransformInfoPass(this));