Use uint16_t to store register overlaps to reduce static data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152001 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/DelaySlotFiller.cpp b/lib/Target/Sparc/DelaySlotFiller.cpp
index 9295408..883aa3a 100644
--- a/lib/Target/Sparc/DelaySlotFiller.cpp
+++ b/lib/Target/Sparc/DelaySlotFiller.cpp
@@ -282,7 +282,7 @@
   if (RegSet.count(Reg))
     return true;
   // check Aliased Registers
-  for (const unsigned *Alias = TM.getRegisterInfo()->getAliasSet(Reg);
+  for (const uint16_t *Alias = TM.getRegisterInfo()->getAliasSet(Reg);
        *Alias; ++ Alias)
     if (RegSet.count(*Alias))
       return true;