[llvm-commits] [llvm] r58320 - /llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

[Chris Lattner]

Author: lattner
Date: Tue Oct 28 02:11:07 2008
New Revision: 58320

URL: http://llvm.org/viewvc/llvm-project?rev=58320&view=rev
Log:
Don't produce invalid comparisons after legalize.

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

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp?rev=58320&r1=58319&r2=58320&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Tue Oct 28 02:11:07 2008
@@ -1720,7 +1720,8 @@
     if (LL == RL && LR == RR) {
       bool isInteger = LL.getValueType().isInteger();
       ISD::CondCode Result = ISD::getSetCCAndOperation(Op0, Op1, isInteger);
-      if (Result != ISD::SETCC_INVALID)
+      if (Result != ISD::SETCC_INVALID &&
+          (!AfterLegalize || TLI.isCondCodeLegal(Result, LL.getValueType())))
         return DAG.getSetCC(N0.getValueType(), LL, LR, Result);
     }
   }
@@ -1904,7 +1905,8 @@
     if (LL == RL && LR == RR) {
       bool isInteger = LL.getValueType().isInteger();
       ISD::CondCode Result = ISD::getSetCCOrOperation(Op0, Op1, isInteger);
-      if (Result != ISD::SETCC_INVALID)
+      if (Result != ISD::SETCC_INVALID &&
+          (!AfterLegalize || TLI.isCondCodeLegal(Result, LL.getValueType())))
         return DAG.getSetCC(N0.getValueType(), LL, LR, Result);
     }
   }