[llvm-commits] [llvm] r45321 - in /llvm/trunk: include/llvm/Target/TargetLowering.h lib/CodeGen/SelectionDAG/DAGCombiner.cpp

[Chris Lattner]

Author: lattner
Date: Sat Dec 22 14:56:36 2007
New Revision: 45321

URL: http://llvm.org/viewvc/llvm-project?rev=45321&view=rev
Log:
Tell TargetLoweringOpt whether it is running before
or after legalize.

Modified:
    llvm/trunk/include/llvm/Target/TargetLowering.h
    llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

Modified: llvm/trunk/include/llvm/Target/TargetLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetLowering.h?rev=45321&r1=45320&r2=45321&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Target/TargetLowering.h (original)
+++ llvm/trunk/include/llvm/Target/TargetLowering.h Sat Dec 22 14:56:36 2007
@@ -557,10 +557,12 @@
   /// that want to combine 
   struct TargetLoweringOpt {
     SelectionDAG &DAG;
+    bool AfterLegalize;
     SDOperand Old;
     SDOperand New;
 
-    explicit TargetLoweringOpt(SelectionDAG &InDAG) : DAG(InDAG) {}
+    explicit TargetLoweringOpt(SelectionDAG &InDAG, bool afterLegalize)
+      : DAG(InDAG), AfterLegalize(afterLegalize) {}
     
     bool CombineTo(SDOperand O, SDOperand N) { 
       Old = O; 

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp?rev=45321&r1=45320&r2=45321&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Sat Dec 22 14:56:36 2007
@@ -141,7 +141,7 @@
     /// it can be simplified or if things it uses can be simplified by bit
     /// propagation.  If so, return true.
     bool SimplifyDemandedBits(SDOperand Op, uint64_t Demanded = ~0ULL) {
-      TargetLowering::TargetLoweringOpt TLO(DAG);
+      TargetLowering::TargetLoweringOpt TLO(DAG, AfterLegalize);
       uint64_t KnownZero, KnownOne;
       Demanded &= MVT::getIntVTBitMask(Op.getValueType());
       if (!TLI.SimplifyDemandedBits(Op, Demanded, KnownZero, KnownOne, TLO))