Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an
extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714
diff --git a/llvm/lib/Target/Alpha/AlphaISelLowering.cpp b/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
index cbbad53..f94cfd1 100644
--- a/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -48,20 +48,20 @@
   addRegisterClass(MVT::f64, Alpha::F8RCRegisterClass);
   addRegisterClass(MVT::f32, Alpha::F4RCRegisterClass);
   
+  setLoadXAction(ISD::EXTLOAD, MVT::i1,  Promote);
+  setLoadXAction(ISD::EXTLOAD, MVT::f32, Expand);
+  
+  setLoadXAction(ISD::ZEXTLOAD, MVT::i1,  Promote);
+  setLoadXAction(ISD::ZEXTLOAD, MVT::i32, Expand);
+  
+  setLoadXAction(ISD::SEXTLOAD, MVT::i1,  Promote);
+  setLoadXAction(ISD::SEXTLOAD, MVT::i8,  Expand);
+  setLoadXAction(ISD::SEXTLOAD, MVT::i16, Expand);
+  
   //  setOperationAction(ISD::BRIND,        MVT::i64,   Expand);
   setOperationAction(ISD::BR_CC,        MVT::Other, Expand);
   setOperationAction(ISD::SELECT_CC,    MVT::Other, Expand);
   
-  setOperationAction(ISD::EXTLOAD, MVT::i1,  Promote);
-  setOperationAction(ISD::EXTLOAD, MVT::f32, Expand);
-  
-  setOperationAction(ISD::ZEXTLOAD, MVT::i1,  Promote);
-  setOperationAction(ISD::ZEXTLOAD, MVT::i32, Expand);
-  
-  setOperationAction(ISD::SEXTLOAD, MVT::i1,  Promote);
-  setOperationAction(ISD::SEXTLOAD, MVT::i8,  Expand);
-  setOperationAction(ISD::SEXTLOAD, MVT::i16, Expand);
-  
   setOperationAction(ISD::TRUNCSTORE, MVT::i1, Promote);
 
   setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);