Hi,

I may have found a bug when I was trying to port my private backend to new LRA 
pass (using gcc 4.9.2+patches).

In lra-constraints.c, in function simple_move_p, the target hook 
targetm.register_move_cost is called with two badly swapped parameters :

        targetm.register_move_cost (GET_MODE (src), sclass, dclass) 

should be :

        targetm.register_move_cost (GET_MODE (src), dclass, sclass)


In my port of GCC it leads to an error when checking constrain_operands at the 
end of LRA pass

   Regards,

Selim Belbachir







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