[llvm-commits] CVS: llvm/lib/Target/Alpha/AlphaISelLowering.cpp AlphaISelLowering.h

[Nate Begeman]

Changes in directory llvm/lib/Target/Alpha:

AlphaISelLowering.cpp updated: 1.33 -> 1.34
AlphaISelLowering.h updated: 1.13 -> 1.14
---
Log message:

Implement Promote for VAARG, and allow it to be custom promoted for people
who don't want the default behavior (Alpha).


---
Diffs of the changes:  (+12 -0)

 AlphaISelLowering.cpp |   11 +++++++++++
 AlphaISelLowering.h   |    1 +
 2 files changed, 12 insertions(+)


Index: llvm/lib/Target/Alpha/AlphaISelLowering.cpp
diff -u llvm/lib/Target/Alpha/AlphaISelLowering.cpp:1.33 
llvm/lib/Target/Alpha/AlphaISelLowering.cpp:1.34
--- llvm/lib/Target/Alpha/AlphaISelLowering.cpp:1.33    Fri Jan 27 17:39:00 2006
+++ llvm/lib/Target/Alpha/AlphaISelLowering.cpp Fri Jan 27 21:14:31 2006
@@ -141,6 +141,7 @@
   setOperationAction(ISD::VAEND,   MVT::Other, Expand);
   setOperationAction(ISD::VACOPY,  MVT::Other, Custom);
   setOperationAction(ISD::VAARG,   MVT::Other, Custom);
+  setOperationAction(ISD::VAARG,   MVT::i32,   Custom);
 
   setStackPointerRegisterToSaveRestore(Alpha::R30);
 
@@ -691,3 +692,13 @@
 
   return SDOperand();
 }
+
+SDOperand AlphaTargetLowering::CustomPromoteOperation(SDOperand Op, 
+                                                      SelectionDAG &DAG) {
+  assert(Op.getValueType() == MVT::i32 && 
+         Op.getOpcode() == ISD::VAARG &&
+         "Unknown node to custom promote!");
+  
+  // The code in LowerOperation already handles i32 vaarg
+  return LowerOperation(Op, DAG);
+}


Index: llvm/lib/Target/Alpha/AlphaISelLowering.h
diff -u llvm/lib/Target/Alpha/AlphaISelLowering.h:1.13 
llvm/lib/Target/Alpha/AlphaISelLowering.h:1.14
--- llvm/lib/Target/Alpha/AlphaISelLowering.h:1.13      Fri Jan 27 17:39:00 2006
+++ llvm/lib/Target/Alpha/AlphaISelLowering.h   Fri Jan 27 21:14:31 2006
@@ -62,6 +62,7 @@
     /// LowerOperation - Provide custom lowering hooks for some operations.
     ///
     virtual SDOperand LowerOperation(SDOperand Op, SelectionDAG &DAG);
+    virtual SDOperand CustomPromoteOperation(SDOperand Op, SelectionDAG &DAG);
 
     //Friendly names for dumps
     const char *getTargetNodeName(unsigned Opcode) const;



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