[llvm-commits] [llvm] r56281 - /llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp

[Dan Gohman]

Author: djg
Date: Wed Sep 17 10:25:49 2008
New Revision: 56281

URL: http://llvm.org/viewvc/llvm-project?rev=56281&view=rev
Log:
Don't worry about clobbering physical register defs that aren't used.

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

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp?rev=56281&r1=56280&r2=56281&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp Wed Sep 17 10:25:49 2008
@@ -1709,6 +1709,8 @@
     MVT VT = N->getValueType(i);
     if (VT == MVT::Flag || VT == MVT::Other)
       continue;
+    if (!N->hasAnyUseOfValue(i))
+      continue;
     unsigned Reg = ImpDefs[i - NumDefs];
     for (;*SUImpDefs; ++SUImpDefs) {
       unsigned SUReg = *SUImpDefs;