What the constraint "o" in and<mode>3 means on MIPS backend
Paul Hua
paul.hua.gm@gmail.com
Thu Jun 15 09:48:00 GMT 2017
Hi:
in mips.c:
...
3261 (define_insn "*and<mode>3"
3262 [(set (match_operand:GPR 0 "register_operand" "=d,d,d,!u,d,d,d,!u,d")
3263 (and:GPR (match_operand:GPR 1 "nonimmediate_operand"
"o,o,W,!u,d,d,d,0,d")
^
3264 (match_operand:GPR 2 "and_operand"
"Yb,Yh,Yw,Uean,K,Yx,Yw,!u,d")))]
...
I do not find "o" in constraints.md and gcc internal.
what is the "o" means?
Paul.
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