Evan Cheng d8616064d8 Now that I am told MachineRegisterInfo also tracks physical register uses / defs, I can do away with the horribleness I introduced a while back. It's impossible to detect if there is any use of a physical register below an instruction (and before any def of the register) with some cheap book keeping. ...

llvm-svn: 49105

2008-04-02 18:04:08 +00:00

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