[Bug target/54222] [avr] Implement fixed-point support

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54222

--- Comment #10 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2013-01-25 09:28:14 UTC ---
Author: gjl
Date: Fri Jan 25 09:28:09 2013
New Revision: 195464

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195464
Log:
gcc/
    PR target/54222
    * config/avr/builtins.def (DEF_BUILTIN): Add LIBNAME argument.
    Add NULL LIBNAME argument to existing definitions.
    (ABSHR, ABSR, ABSLR, ABSLLR, ABSHK, ABSK, ABSLK, ABSLLK): New.
    * config/avr/avr-c.c (DEF_BUILTIN): Add LIBNAME argument.
    * config/avr/avr.c (DEF_BUILTIN): Same.
    (avr_init_builtins): Pass down LIBNAME to add_builtin_function.
    (avr_expand_builtin): Expand to a vanilla call if a libgcc
    implementation is available (DECL_ASSEMBLER_NAME is set).
    (avr_fold_absfx): New static function.
    (avr_fold_builtin): Use it to handle: AVR_BUILTIN_ABSHR,
    AVR_BUILTIN_ABSR, AVR_BUILTIN_ABSLR, AVR_BUILTIN_ABSLLR,
    AVR_BUILTIN_ABSHK, AVR_BUILTIN_ABSK, AVR_BUILTIN_ABSLK,
    AVR_BUILTIN_ABSLLK.
    * config/avr/stdfix.h (abshr, absr, abslr, absllr)
    (abshk, absk, abslk, absllk): Provide as static inline functions.

gcc/testsuite/
    PR target/54222
    * gcc.target/avr/torture/builtins-3-absfx.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/avr/torture/builtins-3-absfx.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/avr/avr-c.c
    trunk/gcc/config/avr/avr.c
    trunk/gcc/config/avr/builtins.def
    trunk/gcc/config/avr/stdfix.h
    trunk/gcc/testsuite/ChangeLog