diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2020-08-28 19:33:42 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-09-01 11:38:06 +0100 |
| commit | ac8c62c4e5a3f24e6d47f52ec1bfb20994caefa5 (patch) | |
| tree | 680716efeb759ff5a8b58d73fe68e3a68b15c3cd /target/arm/vfp_helper.c | |
| parent | 635187aaa92f21ab001e2868e803b3c5460261ca (diff) | |
target/arm: Implement fp16 for Neon VRECPS
Convert the Neon VRECPS insn to using a gvec helper, and
use this to implement the fp16 case.
The phrasing of the new float32_recps_nf() is slightly different from
the old recps_f32() so that it parallels the f16 version; for f16 we
can't assume that flush-to-zero is always enabled.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200828183354.27913-34-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/vfp_helper.c')
| -rw-r--r-- | target/arm/vfp_helper.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/target/arm/vfp_helper.c b/target/arm/vfp_helper.c index 586dfd22e5..1f452409d4 100644 --- a/target/arm/vfp_helper.c +++ b/target/arm/vfp_helper.c @@ -529,19 +529,6 @@ uint32_t HELPER(vfp_fcvt_f64_to_f16)(float64 a, void *fpstp, uint32_t ahp_mode) return r; } -float32 HELPER(recps_f32)(CPUARMState *env, float32 a, float32 b) -{ - float_status *s = &env->vfp.standard_fp_status; - if ((float32_is_infinity(a) && float32_is_zero_or_denormal(b)) || - (float32_is_infinity(b) && float32_is_zero_or_denormal(a))) { - if (!(float32_is_zero(a) || float32_is_zero(b))) { - float_raise(float_flag_input_denormal, s); - } - return float32_two; - } - return float32_sub(float32_two, float32_mul(a, b, s), s); -} - float32 HELPER(rsqrts_f32)(CPUARMState *env, float32 a, float32 b) { float_status *s = &env->vfp.standard_fp_status; |