Re: Unwanted IRA copies via process_reg_shuffles

2010-02-05 Thread Vladimir Makarov
Jeff Law wrote: I was looking at a regression caused by having ira-reload utilize the existing copy detection code in IRA rather than my own and stumbled upon this... Consider this insn prior to IRA: (insn 72 56 126 8 j.c:744 (parallel [ (set (reg:SI 110) (minus:

Unwanted IRA copies via process_reg_shuffles

2010-02-04 Thread Jeff Law
I was looking at a regression caused by having ira-reload utilize the existing copy detection code in IRA rather than my own and stumbled upon this... Consider this insn prior to IRA: (insn 72 56 126 8 j.c:744 (parallel [ (set (reg:SI 110) (minus:SI (reg:SI 69 [ e