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target/arm: Implement fp16 for Neon VRINT-with-specified-rounding-mode

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Convert the Neon VRINT-with-specified-rounding-mode insns to gvec,
and use this to implement the fp16 versions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200828183354.27913-41-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2020-08-28 19:33:49 +01:00
parent ca88a6efdf
commit 18725916b1
4 changed files with 30 additions and 79 deletions
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21
target/arm/vec_helper.c
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@ -1892,3 +1892,24 @@ DO_VCVT_RMODE(gvec_vcvt_rm_sh, helper_vfp_toshh, uint16_t)
DO_VCVT_RMODE(gvec_vcvt_rm_uh, helper_vfp_touhh, uint16_t)
#undef DO_VCVT_RMODE
#define DO_VRINT_RMODE(NAME, FUNC, TYPE) \
void HELPER(NAME)(void *vd, void *vn, void *stat, uint32_t desc) \
{ \
float_status *fpst = stat; \
intptr_t i, oprsz = simd_oprsz(desc); \
uint32_t rmode = simd_data(desc); \
uint32_t prev_rmode = get_float_rounding_mode(fpst); \
TYPE *d = vd, *n = vn; \
set_float_rounding_mode(rmode, fpst); \
for (i = 0; i < oprsz / sizeof(TYPE); i++) { \
d[i] = FUNC(n[i], fpst); \
} \
set_float_rounding_mode(prev_rmode, fpst); \
clear_tail(d, oprsz, simd_maxsz(desc)); \
}
DO_VRINT_RMODE(gvec_vrint_rm_h, helper_rinth, uint16_t)
DO_VRINT_RMODE(gvec_vrint_rm_s, helper_rints, uint32_t)
#undef DO_VRINT_RMODE