[llvm-commits] [llvm] r57248 - /llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

[Andrew Lenharth]

Author: alenhar2
Date: Tue Oct  7 12:09:16 2008
New Revision: 57248

URL: http://llvm.org/viewvc/llvm-project?rev=57248&view=rev
Log:
Use ADDC if it is valid at any smaller size.  Do it right this time

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

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp?rev=57248&r1=57247&r2=57248&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp Tue Oct  7 12:09:16 2008
@@ -6445,14 +6445,17 @@
     unsigned OpV = Node->getOpcode() == ISD::ADD ? ISD::ADDC : ISD::SUBC;
     bool hasCarry = false;
     if (NVT == MVT::i64)
-      hasCarry |= TLI.isOperationLegal(OpV, MVT::i32)
+      hasCarry |= TLI.isOperationLegal(OpV, MVT::i64)
+        | TLI.isOperationLegal(OpV, MVT::i32)
         | TLI.isOperationLegal(OpV, MVT::i16)
         | TLI.isOperationLegal(OpV, MVT::i8);
     if (NVT == MVT::i32)
-      hasCarry |= TLI.isOperationLegal(OpV, MVT::i16)
+      hasCarry |= TLI.isOperationLegal(OpV, MVT::i32)
+        | TLI.isOperationLegal(OpV, MVT::i16)
         | TLI.isOperationLegal(OpV, MVT::i8);
     if (NVT == MVT::i16)
-      hasCarry |= TLI.isOperationLegal(OpV, MVT::i8);
+      hasCarry |= TLI.isOperationLegal(OpV, MVT::i16)
+        | TLI.isOperationLegal(OpV, MVT::i8);
       
     if(hasCarry) {
       if (Node->getOpcode() == ISD::ADD) {