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gcc/ * expr.h (store_bit_field): Don't return a value. * expmed.c (check_predicate_volatile_ok): New function. (store_bit_field_1): New function, extracted from store_bit_field. Take a fallback_p argument and return true if the operation succeeded. Only use store_fixed_bit_field if fallback_p. Don't recompute mode_for_extraction; use op_mode instead. Try forcing memories into registers if the insv expander fails. (store_bit_field): Use store_bit_field_1 with fallback_p true. Don't return a value. (convert_extracted_bit_field): New function, extracted from store_bit_field. (extract_bit_field_1): Likewise. Take a fallback_p argument and return NULL if the operation succeeded. Only use extract_fixed_bit_field if fallback_p. Only calculate one extraction mode. Combine code for extv and extzv. Try forcing memories into registers if the ext(z)v expander fails. (extract_bit_field): Use extract_bit_field_1 with fallback_p true. gcc/testsuite/ * gcc.target/mips/ins-1.c: New test. From-SVN: r126972
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