vendor/llvm/llvm-r104832

1 files changed, 5 insertions, 9 deletions

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 5f1e04eecb4a8..0ff852cf15a15 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -689,19 +689,15 @@ void PPCRegisterInfo::lowerCRSpilling(MachineBasicBlock::iterator II,
   const TargetRegisterClass *GPRC = &PPC::GPRCRegClass;
   const TargetRegisterClass *RC = Subtarget.isPPC64() ? G8RC : GPRC;
   unsigned Reg = findScratchRegister(II, RS, RC, SPAdj);
+  unsigned SrcReg = MI.getOperand(0).getReg();
 
   // We need to store the CR in the low 4-bits of the saved value. First, issue
-  // an MFCR to save all of the CRBits. Add an implicit kill of the CR.
-  if (!MI.getOperand(0).isKill())
-    BuildMI(MBB, II, dl, TII.get(PPC::MFCR), Reg);
-  else
-    // Implicitly kill the CR register.
-    BuildMI(MBB, II, dl, TII.get(PPC::MFCR), Reg)
-      .addReg(MI.getOperand(0).getReg(), RegState::ImplicitKill);
+  // an MFCRpsued to save all of the CRBits and, if needed, kill the SrcReg.
+  BuildMI(MBB, II, dl, TII.get(PPC::MFCRpseud), Reg)
+          .addReg(SrcReg, getKillRegState(MI.getOperand(0).isKill()));
     
   // If the saved register wasn't CR0, shift the bits left so that they are in
   // CR0's slot.
-  unsigned SrcReg = MI.getOperand(0).getReg();
   if (SrcReg != PPC::CR0)
     // rlwinm rA, rA, ShiftBits, 0, 31.
     BuildMI(MBB, II, dl, TII.get(PPC::RLWINM), Reg)
@@ -1009,7 +1005,7 @@ void PPCRegisterInfo::determineFrameLayout(MachineFunction &MF) const {
   if (!DisableRedZone &&
       FrameSize <= 224 &&                          // Fits in red zone.
       !MFI->hasVarSizedObjects() &&                // No dynamic alloca.
-      !MFI->hasCalls() &&                          // No calls.
+      !MFI->adjustsStack() &&                      // No calls.
       (!ALIGN_STACK || MaxAlign <= TargetAlign)) { // No special alignment.
     // No need for frame
     MFI->setStackSize(0);