Make constant string pointer into an array to remove a pointer lookup for every access.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186482 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocBase.cpp b/lib/CodeGen/RegAllocBase.cpp
index c035590..df3e12a 100644
--- a/lib/CodeGen/RegAllocBase.cpp
+++ b/lib/CodeGen/RegAllocBase.cpp
@@ -43,7 +43,7 @@
 VerifyRegAlloc("verify-regalloc", cl::location(RegAllocBase::VerifyEnabled),
                cl::desc("Verify during register allocation"));
 
-const char *RegAllocBase::TimerGroupName = "Register Allocation";
+const char RegAllocBase::TimerGroupName[] = "Register Allocation";
 bool RegAllocBase::VerifyEnabled = false;
 
 //===----------------------------------------------------------------------===//