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Author SHA1 Message Date
Thomas Preud'homme 5b9873fa72 Check for 64 FP instructions availability in libm before using them 
Currently, double precision math functions in newlib/libm/machine/arm detect whether neon instructions can be used for double precision computation by checking the architecture version (>= 8) and the availability of floating-point instructions. However, these instructions would not be available if targeting fpv5-sp-d16 as the FPU, which by definition does not have 64bit float instructions. This patch adds a check that __ARM_FP advertises 64bit float instructions.

        * libm/machine/arm/s_ceil.c: Also check that 64bit FP instructions are
        available in the guard.
        * libm/machine/arm/s_floor.c: Likewise.
        * libm/machine/arm/s_nearbyint.c: Likewise.
        * libm/machine/arm/s_rint.c: Likewise.
        * libm/machine/arm/s_round.c: Likewise.
        * libm/machine/arm/s_trunc.c: Likewise.
 2015-12-09 10:30:31 +01:00
Jeff Johnston 25e21cbc32 2012-12-04 Kyrylo Tkachov <kyrylo.tkachov@arm.com> 
* configure.host: Define libm_machine_dir value for arm.
        * libm/machine/configure.in: Add arm to libm machines list.
        * libm/machine/configure: Regenerate.
        * libm/machine/arm/Makefile.am: New file.
        * libm/machine/arm/Makefile.in: Generated.
        * libm/machine/arm/aclocal.m4: Generated.
        * libm/machine/arm/configure: Generated.
        * libm/machine/arm/configure.in: New file.
        * libm/machine/arm/s_ceil.c: Likewise.
        * libm/machine/arm/s_floor.c: Likewise.
        * libm/machine/arm/s_nearbyint.c: Likewise.
        * libm/machine/arm/s_rint.c: Likewise.
        * libm/machine/arm/s_round.c: Likewise.
        * libm/machine/arm/s_trunc.c: Likewise.
        * libm/machine/arm/sf_ceil.c: Likewise.
        * libm/machine/arm/sf_floor.c: Likewise.
        * libm/machine/arm/sf_nearbyint.c: Likewise.
        * libm/machine/arm/sf_rint.c: Likewise.
        * libm/machine/arm/sf_round.c: Likewise.
        * libm/machine/arm/sf_trunc.c: Likewise.
 2012-12-04 21:43:21 +00:00