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Alkis Evlogimenos de8ac749fe 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
2004-02-12 18:49:07 +00:00
llvm Add parent pointer to MachineInstr that points to owning 2004-02-12 18:49:07 +00:00