Implement 'm' memory operand properly

llvm-svn: 83785

1 files changed, 20 insertions, 0 deletions

diff --git a/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp b/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
index 25287e9dcec..a603e07b02e 100644
--- a/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/MSP430/MSP430ISelDAGToDAG.cpp
@@ -52,6 +52,10 @@ namespace {
       return "MSP430 DAG->DAG Pattern Instruction Selection";
     }
 
+    virtual bool
+    SelectInlineAsmMemoryOperand(const SDValue &Op, char ConstraintCode,
+                                 std::vector<SDValue> &OutOps);
+
     // Include the pieces autogenerated from the target description.
   #include "MSP430GenDAGISel.inc"
 
@@ -122,6 +126,22 @@ bool MSP430DAGToDAGISel::SelectAddr(SDValue Op, SDValue Addr,
 }
 
 
+bool MSP430DAGToDAGISel::
+SelectInlineAsmMemoryOperand(const SDValue &Op, char ConstraintCode,
+                             std::vector<SDValue> &OutOps) {
+  SDValue Op0, Op1;
+  switch (ConstraintCode) {
+  default: return true;
+  case 'm':   // memory
+    if (!SelectAddr(Op, Op, Op0, Op1))
+      return true;
+    break;
+  }
+
+  OutOps.push_back(Op0);
+  OutOps.push_back(Op1);
+  return false;
+}
 
 /// InstructionSelect - This callback is invoked by
 /// SelectionDAGISel when it has created a SelectionDAG for us to codegen.