compare instructions

[Dmitry]

Fellows,

Is there something wrong:

(define_expand "tstsi_for_zero_const"
  [(set (cc0) (and:SI (match_operand:SI 0 "nonimmediate_operand" "")
                      (match_operand:SI 1 "immediate_operand"    "")))]
 ""
 "")

(define_insn "*tstsi_for_zero_const"
  [(set (cc0) (and:SI (match_operand:SI 0 "nonimmediate_operand" "rm")
                      (match_operand:SI 1 "immediate_operand"    "i")))]
 ""  
 "this_is_a_test %0,%1"
[(set_attr "length" "2")
   (set_attr "cc" "compare")])


I suggest, that this expander will suit:

if( a&CONST ) {...}

where 'a' has SImode.

But the compiler fails to pick up 'tstsi_for_zero_const' defenition.

Can anybody tell me why?

Dmitry.



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