[llvm-commits] [llvm] r133838 - /llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp

[Owen Anderson]

Author: resistor
Date: Fri Jun 24 18:02:22 2011
New Revision: 133838

URL: http://llvm.org/viewvc/llvm-project?rev=133838&view=rev
Log:
The scheduler needs to be aware on the existence of untyped nodes when it performs type propagation for EXTRACT_SUBREG.

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

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp?rev=133838&r1=133837&r2=133838&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp Fri Jun 24 18:02:22 2011
@@ -521,7 +521,8 @@
       if (!Node->hasAnyUseOfValue(DefIdx))
         continue;
       if (Node->isMachineOpcode() &&
-          Node->getMachineOpcode() == TargetOpcode::EXTRACT_SUBREG) {
+          Node->getMachineOpcode() == TargetOpcode::EXTRACT_SUBREG &&
+          Node->getOperand(0).getValueType() != MVT::untyped) {
         // Propagate the incoming (full-register) type. I doubt it's needed.
         ValueType = Node->getOperand(0).getValueType();
       }