[llvm-commits] CVS: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

[Chris Lattner]

Changes in directory llvm/lib/CodeGen/SelectionDAG:

LegalizeDAG.cpp updated: 1.226 -> 1.227
---
Log message:

Fix CodeGen/Generic/2005-12-12-ExpandSextInreg.ll


---
Diffs of the changes:  (+10 -0)

 LegalizeDAG.cpp |   10 ++++++++++
 1 files changed, 10 insertions(+)


Index: llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
diff -u llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.226 llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.227
--- llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:1.226	Fri Dec  9 20:36:00 2005
+++ llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp	Mon Dec 12 16:27:43 2005
@@ -3196,6 +3196,16 @@
     Lo = LegalizeOp(Node->getOperand(0));
     Hi = LegalizeOp(Node->getOperand(1));
     break;
+    
+  case ISD::SIGN_EXTEND_INREG:
+    ExpandOp(Node->getOperand(0), Lo, Hi);
+    // Sign extend the lo-part.
+    Hi = DAG.getNode(ISD::SRA, NVT, Lo,
+                     DAG.getConstant(MVT::getSizeInBits(NVT)-1,
+                                     TLI.getShiftAmountTy()));
+    // sext_inreg the low part if needed.
+    Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1));
+    break;
 
   case ISD::CTPOP:
     ExpandOp(Node->getOperand(0), Lo, Hi);