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78cf8279ac
* config/avr/avr-protos.h (avr_hard_regno_mode_ok): New prototype.
* config/avr/avr.c (out_adj_frame_ptr, out_set_stack_ptr):
New functions, common code moved from function_{prologue,epilogue}
and extended to support the -mtiny-stack option.
(function_prologue, function_epilogue): Use them.
Use lo8/hi8 consistently for asm output readability.
(avr_hard_regno_mode_ok): New function.
* config/avr/avr.h (TARGET_SWITCHES): Fix typo. Add -mtiny-stack.
(UNITS_PER_WORD): Define as 4 (not 1) when compiling libgcc2.c.
(HARD_REGNO_MODE_OK): Call the avr_hard_regno_mode_ok function.
* config/avr/avr.md (*mov_sp_r): Add support for -mtiny-stack.
Write SPH before SPL.
(*movqi): No need to disable interrupts for just one "out"
in alternative 5. Change length attribute from 4 to 1.
* config/avr/libgcc.S (__prologue_saves__, __epilogue_restores__):
Write SPH before SPL.
From-SVN: r34678
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. Check the INSTALL directory for detailed configuration and installation instructions. Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.