Merge commit 598f21e9fcf7 from llvm git (by zhijian lin):

[PowerPC] need to set CallFrameSize for the pass  PPCReduceCRLogicals when insert a new block (#151017)

  In the [ [CodeGen] Store call frame size in
  MachineBasicBlock](https://reviews.llvm.org/D156113), it mentions When a
  basic block has been split in the middle of a call sequence. the call
  frame size may not be zero, it need to set the setCallFrameSize for the
  new MachineBasicBlock. but in the function `splitMBB(BlockSplitInfo
  &BSI)` in the llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp , it do
  not setCallFrameSzie for the new MachineBasicBlock `NewMBB`, we will
  setCallFrameSzie in the patch.

  the patch fix the crash mention in
  https://github.com/llvm/llvm-project/pull/144594#issuecomment-2993736654

This fixes "error in backend: Found 1 machine code errors" while
crypto/openssh/packet.c for PowerPC64.

PR:		292067
MFC after:	1 month

contrib/llvm-project/llvm/lib/Target/PowerPC/PPCReduceCRLogicals.cpp

@@ -248,6 +248,10 @@ static bool splitMBB(BlockSplitInfo &BSI) {
   }
   addIncomingValuesToPHIs(NewBRTarget, ThisMBB, NewMBB, MRI);
 
+  // Set the call frame size on ThisMBB to the new basic blocks.
+  // See https://reviews.llvm.org/D156113.
+  NewMBB->setCallFrameSize(TII->getCallFrameSizeAt(ThisMBB->back()));
+
   LLVM_DEBUG(dbgs() << "After splitting, ThisMBB:\n"; ThisMBB->dump());
   LLVM_DEBUG(dbgs() << "NewMBB:\n"; NewMBB->dump());
   LLVM_DEBUG(dbgs() << "New branch-to block:\n"; NewBRTarget->dump());