Convert PowerPC to register mask operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152122 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index bfed7ba0aa..a53b0b171a 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -2769,6 +2769,12 @@ PPCTargetLowering::FinishCall(CallingConv::ID CallConv, DebugLoc dl,
     (CallConv == CallingConv::Fast &&
      getTargetMachine().Options.GuaranteedTailCallOpt) ? NumBytes : 0;
 
+  // Add a register mask operand representing the call-preserved registers.
+  const TargetRegisterInfo *TRI = getTargetMachine().getRegisterInfo();
+  const uint32_t *Mask = TRI->getCallPreservedMask(CallConv);
+  assert(Mask && "Missing call preserved mask for calling convention");
+  Ops.push_back(DAG.getRegisterMask(Mask));
+
   if (InFlag.getNode())
     Ops.push_back(InFlag);