[llvm-commits] [llvm] r59786 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp

[Bill Wendling]

Author: void
Date: Thu Nov 20 20:33:36 2008
New Revision: 59786

URL: http://llvm.org/viewvc/llvm-project?rev=59786&view=rev
Log:
Generate code for llvm.uadd.with.overflow intrinsic. No conversion support yet.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp?rev=59786&r1=59785&r2=59786&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp Thu Nov 20 20:33:36 2008
@@ -4109,7 +4109,18 @@
     return 0;
   }
   case Intrinsic::uadd_with_overflow: {
-    // TODO: Convert to "ISD::UADDO" instruction.
+    // Convert to "ISD::UADDO" instruction.
+    SDValue Op1 = getValue(I.getOperand(1));
+    SDValue Op2 = getValue(I.getOperand(2));
+    MVT Ty = Op1.getValueType();
+
+    MVT ValueVTs[] = { Ty, MVT::i1 };
+    SDValue Ops[] = { Op1, Op2 };
+
+    SDValue Result = DAG.getNode(ISD::UADDO, DAG.getVTList(&ValueVTs[0], 2),
+                                 &Ops[0], 2);
+
+    setValue(&I, Result);
     return 0;
   }