Allow copyRegToReg to emit cross register classes copies.
Tested with "make check"!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp
index 286ef1f..4f0a74b 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp
@@ -684,9 +684,11 @@
if (&MF.front() == BB && MF.livein_begin() != MF.livein_end()) {
for (MachineFunction::livein_iterator LI = MF.livein_begin(),
E = MF.livein_end(); LI != E; ++LI)
- if (LI->second)
+ if (LI->second) {
+ const TargetRegisterClass *RC = RegMap->getRegClass(LI->second);
MRI->copyRegToReg(*MF.begin(), MF.begin()->end(), LI->second,
- LI->first, RegMap->getRegClass(LI->second));
+ LI->first, RC, RC);
+ }
}
DenseMap<SDOperand, unsigned> VRBaseMap;