Fix an GCC warning that seems to have actually caught a bug (!!!) in
a condition's grouping. Every other use of Allocatable.test(Hint) groups it the
same way as it is indented, so move the parentheses to agree with that
grouping.

llvm-svn: 103869
diff --git a/llvm/lib/CodeGen/RegAllocFast.cpp b/llvm/lib/CodeGen/RegAllocFast.cpp
index 349bc2c..be2613b 100644
--- a/llvm/lib/CodeGen/RegAllocFast.cpp
+++ b/llvm/lib/CodeGen/RegAllocFast.cpp
@@ -416,8 +416,8 @@
 
   // Ignore invalid hints.
   if (Hint && (!TargetRegisterInfo::isPhysicalRegister(Hint) ||
-               !RC->contains(Hint) || UsedInInstr.test(Hint)) ||
-               !Allocatable.test(Hint))
+               !RC->contains(Hint) || UsedInInstr.test(Hint) ||
+               !Allocatable.test(Hint)))
     Hint = 0;
 
   // If there is no hint, peek at the first use of this register.