Add parent pointer to MachineInstr that points to owning
MachineBasicBlock. Also change opcode to a short and numImplicitRefs
to an unsigned char so that overall MachineInstr's size stays the
same.

llvm-svn: 11357
4 files changed
tree: fbc4b02804d9d43422a2daf6393c179bc64b10ab
  1. llvm/