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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. From-SVN: r183058 |
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| boehm-gc | ||
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This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully.