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* target.h (struct gcc_target): Add case_values_threshold field. * target-def.h (TARGET_CASE_VALUES_THRESHOLD): New. (TARGET_INITIALIZER): Use TARGET_CASE_VALUES_THRESHOLD. * targhooks.c (default_case_values_threshold): New function. * targhooks.h (default_case_values_threshold): Declare function. * stmt.c (expand_case): Use case_values_threshold target hook. * expr.h (case_values_threshold): Remove declartation. * expr.c (case_values_threshold): Remove function. * doc/tm.texi (CASE_VALUES_THRESHOLD): Revise documentation. * config/avr/avr.h (CASE_VALUES_THRESHOLD): Remove macro. * config/avr/avr.c (TARGET_CASE_VALUES_THRESHOLD): Define macro. (avr_case_values_threshold): Declare as static. * config/avr/avr-protos.h (avr_case_values_threshold): Remove. * config/avr/mn10300.h (CASE_VALUES_THRESHOLD): Remove macro. * config/avr/mn10300.c (TARGET_CASE_VALUES_THRESHOLD): Define macro. (mn10300_case_values_threshold): New function. From-SVN: r146756
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