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Subject: [Bug target/52737] [avr]: -mtiny-stack shall not influence multilib selection
Date: Wed, 28 Mar 2012 08:54:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52737

--- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2012-03-28 08:31:46 UTC ---
Author: gjl
Date: Wed Mar 28 08:31:26 2012
New Revision: 185907

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185907
Log:
    PR target/52737
    * contrib/gcc_update (files_and_dependencies):
    Remove gcc/config/avr/t-multilib from touch data.

gcc/
    PR target/52737
    * config.gcc (tm_file): Remove avr/multilib.h.

    * doc/invoke.texi (AVR Options): Adjust
    documentation of -mtiny-stack.

    * config/avr/genmultilib.awk: Remove code to generate multilib.h.
    (BEGIN): Use -msp8 as multilib option instead of -mtiny-stack.
    * config/avr/t-avr: Remove generation of multilib.h.
    * config/avr/t-multilib: Regenerate.
    * config/avr/multilib.h: Remove.
    * config/avr/avr.opt (-msp8): New option.
    (avr_sp8): New variable.
    * config/avr/driver-avr.c (avr_device_to_sp8): New function.
    * config/avr/avr.h (AVR_HAVE_SPH): New define.
    (AVR_HAVE_8BIT_SP): Also set by avr_sp8 i.e. -msp8.
    (avr_device_to_sp8): New prototype.
    (EXTRA_SPEC_FUNCTIONS): Add { "device_to_sp8", avr_device_to_sp8 }
    (DRIVER_SELF_SPECS): New define.
    * config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in defines:
    __AVR_SP8__, __AVR_HAVE_SPH__.
    * config/avr/avr.c (output_movhi): Use AVR_HAVE_SPH instead of
    AVR_HAVE_8BIT_SP to decide if SP_H is present.
    (avr_file_start): Ditto.

libgcc/
    PR target/52737
    * config/avr/lib1funcs.S: Use __AVR_HAVE_SPH__ for SP_H checks
    instead of __AVR_HAVE_8BIT_SP__.


Removed:
    trunk/gcc/config/avr/multilib.h
Modified:
    trunk/ChangeLog
    trunk/contrib/gcc_update
    trunk/gcc/ChangeLog
    trunk/gcc/config.gcc
    trunk/gcc/config/avr/avr-c.c
    trunk/gcc/config/avr/avr.c
    trunk/gcc/config/avr/avr.h
    trunk/gcc/config/avr/avr.opt
    trunk/gcc/config/avr/driver-avr.c
    trunk/gcc/config/avr/genmultilib.awk
    trunk/gcc/config/avr/t-avr
    trunk/gcc/config/avr/t-multilib
    trunk/gcc/doc/invoke.texi
    trunk/libgcc/ChangeLog
    trunk/libgcc/config/avr/lib1funcs.S