finally found the gcc defined constants


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22502 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaTargetMachine.cpp b/lib/Target/Alpha/AlphaTargetMachine.cpp
index 16f8899..458e20b 100644
--- a/lib/Target/Alpha/AlphaTargetMachine.cpp
+++ b/lib/Target/Alpha/AlphaTargetMachine.cpp
@@ -51,7 +51,7 @@
 }
 
 unsigned AlphaTargetMachine::getJITMatchQuality() {
-#if 0
+#ifdef __alpha
   return 10;
 #else
   return 0;