[PATCH] ARM testsuite: force hardfp for addr-modes-float.c

[Charles Baylis]

Some of the new tests in addr-modes-float.c, which were introduced for
the rework of addressing modes costs [1] fail when GCC is configured
to default to a softfp calling convention. Fix this by annotating the
test functions with __attribute__((pcs("aapcs-vfp"))).

Thanks to Christophe for pointing this out.

[1] https://gcc.gnu.org/ml/gcc-patches/2017-11/msg02149.html

<date>  Charles Baylis  <charles.baylis@linaro.org>

        * gcc.target/arm/addr-modes-float.c (ATTR): New define.
        (POST_STORE): Pass ATTR as 2nd argument.
        (POST_LOAD): Likewise.
        (POST_STORE_VEC): Likewise.
        * gcc.target/arm/addr-modes-int.c (ATTR): New define.
        (PRE_STORE): Pass ATTR as 2nd argument.
        (POST_STORE): Likewise.
        (PRE_LOAD): Likewise.
        (POST_LOAD): Likewise.
        * gcc.target/arm/addr-modes.h (PRE_STORE): New parameter.
        (POST_STORE): Likewise.
        (POST_STORE_VEC): Likewise.
        (PRE_LOAD): Likewise.
        (POST_LOAD): Likewise.
        (POST_LOAD_VEC): Likewise.
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