On Thu, 30 Jun 2011 14:42:54 +0100
Richard Earnshaw <rearnsha@arm.com> wrote:

> > OK to apply? Tested alongside the rest of the patch series, in both
> > big & little-endian mode.
> > [snip]
> 
> Please put the iterator definitions in iterators.md

I've done this, and made a few other changes as required by the new
version of [4/6] in this series:

http://gcc.gnu.org/ml/gcc-patches/2011-07/msg02680.html

OK to apply? (I'll assume so if the previous patch gets approved, and
tests look OK).

Julian

ChangeLog

    gcc/
    * configure.ac (fixed-point): Add ARM support.
    * configure: Regenerate.
    * config/arm/arm.c (arm_fixed_mode_set): New struct.
    (arm_set_fixed_optab_libfunc): New.
    (arm_set_fixed_conv_libfunc): New.
    (arm_init_libfuncs): Initialise fixed-point helper libfuncs with
    ARM-specific names.
    (aapcs_libcall_value): Return sub-word-size fixed-point libcall
    return values in SImode.
    (arm_return_in_msb): Return fixed-point types in the msb.
    (arm_pad_reg_upwards, arm_pad_arg_upwards): Pad fixed-point types
    upwards.
    (arm_scalar_mode_supported_p): Support fixed-point modes.
    (arm_vector_mode_supported_p): Support vector fixed-point modes.
    * config/arm/arm.h (SHORT_FRACT_TYPE_SIZE, FRACT_TYPE_SIZE)
    (LONG_FRACT_TYPE_SIZE, LONG_LONG_FRACT_TYPE_SIZE)
    (SHORT_ACCUM_TYPE_SIZE, ACCUM_TYPE_SIZE, LONG_ACCUM_TYPE_SIZE)
    (LONG_LONG_ACCUM_TYPE_SIZE, MAX_FIXED_MODE_SIZE): Define.
    * config/arm/iterators.md (FIXED, ADDSUB, UQADDSUB, QADDSUB, QMUL):
    New mode iterators.
    (qaddsub_suf): New mode attribute.
    * config/arm/arm-modes.def (FRACT, UFRACT, ACCUM, UACCUM): Declare
    vector modes.
    * config/arm/predicates.md (sat_shift_operator): New predicate.
    * config/arm/arm-fixed.md: New.
    * config/arm/arm.md: Include arm-fixed.md.
    * config/arm/t-arm (MD_INCLUDES): Add arm-fixed.md.
 
    libgcc/
    * config.host (arm*-*-linux*, arm*-*-uclinux*, arm*-*-eabi*)
    (arm*-*-symbianelf*): Add t-fixedpoint-gnu-prefix makefile fragment.
    * config/arm/bpabi-lib.h (LIBGCC2_GNU_PREFIX): Define, if
    BUILDING_FIXED_BIT is set.

    gcc/testsuite/
    * gcc.target/arm/fixed-point-exec.c: New test.