http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49868
--- Comment #11 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2012-01-10 09:42:14 UTC --- Author: gjl Date: Tue Jan 10 09:42:10 2012 New Revision: 183058 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183058 Log: libgcc/ PR target/49868 Extend __pgmx semantics to linearize memory. * config/avr/t-avr (LIB1ASMFUNCS): Add _xload_1, _movmemx. * config/avr/lib1funcs.S (__xload_1): New function. (__movmemx_qi, __movmemx_hi): New functions. (__xload_2, __xload_3, __xload_4): Rewrite to fit new __pgmx semantics. gcc/ PR target/49868 Extend __pgmx semantics to linearize memory. * config/avr/avr.md (mov<mode>): Use avr_xload_libgcc_p to determine if code comes inline or from libgcc. (MOVMEM_r_d:HI): Add "w" to constraint for better preference. (movmem_qi, movmem_qi): Set constraint #2 to "n". (movmem_qi_elpm, movmem_hi_elpm): Remove insns. (movmemx_qi, movmemx_hi): New insns. (xload_<mode>_libgcc): Rewrite to new insn condition. (xload_<mode>): Remove insns. * config/avr/avr.c (avr_out_xload): Rewrite: Only need to handle cases that don't satisfy avr_xload_libgcc_p(). (avr_addr_space_convert): Allow converting in any direction. (avr_addr_space_subset_p): Return always true. (avr_xload_libgcc_p): Rewrite to fit new __pgmx semantics. (avr_emit_movmemhi): Ditto. (avr_out_lpm): No need to handle ADDR_SPACE_PGMX any more. (avr_out_movmem): Ditto. (AVR_SYMBOL_FLAG_PROGMEM): New macro. (AVR_SYMBOL_SET_ADDR_SPACE): New macro. (AVR_SYMBOL_GET_ADDR_SPACE): New macro. (avr_encode_section_info): Encode 'progmem' in symbol flags. (output_reload_in_const): Don't zero-extend any 24-bit symbols. Modified: trunk/gcc/ChangeLog trunk/gcc/config/avr/avr.c trunk/gcc/config/avr/avr.md trunk/libgcc/ChangeLog trunk/libgcc/config/avr/lib1funcs.S trunk/libgcc/config/avr/t-avr
