arm.c (arm_rtx_costs): Check for RTX being a SYMBOL_REF before calling CONSTANT_POOL_...

arm.c (arm_rtx_costs): Check for RTX being a SYMBOL_REF before calling CONSTANT_POOL_ADDRESS_P.

    * config/arm/arm.c (arm_rtx_costs): Check for RTX being a
    SYMBOL_REF before calling CONSTANT_POOL_ADDRESS_P.
    (arm_adjust_cost): Check for RTX being a SYMBOL_REF before
    calling CONSTANT_POOL_ADDRESS_P.
    * config/arm/arm.h (TARGET_CPU_CPP_BUILTINS): Fix typo in code
    to decide whether to define __arm__ or __thumb.
        (THUMB_GO_IF_LEGITIMATE_ADDRESS): Check for RTX being a
    SYMBOL_REF before calling CONSTANT_POOL_ADDRESS_P.

From-SVN: r53519