On Tue, 5 Aug 2014, Cherry Vanc wrote:
Thanks. I am now using a define_insn based on your inputs : (define_insn "testnew36" [(set (match_operand:DI 0 "register_operand" "") (op1:DI (match_operand:DI 1 "register_operand" "") (match_operand:SI 2 "immediate_operand" "") )) (set (match_operand:DI 3 "register_operand" "") (op2:DI (match_operand:DI 4 "register_operand" "") (match_dup 0))) (set (match_operand:DI 5 "register_operand" "") (sign_extend:DI (op3:SI (match_dup 3))))] "TARGET_MYCORE" "testnew 36" [(set_attr "mode" "DI")])
Er, no, that's not what was recommended. Your *testnew in the previous email was much better.
Why doesnt -fdump-rtl-all-all / -fdump-rtl-all generate those .life and .combine files so that I can take a look at the combine pass is doing ? dump-rtl-combine doesnt spit anything either. MYCORE is a mips adaptation using GCC 4.9.0.
Are you sure compiling file.c with options -O -da (or any of the options you tried) doesn't create file.c.201r.combine (number can vary)? You'll need to debug that first then.
-- Marc Glisse
