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authorPeter Maydell <peter.maydell@linaro.org>2020-08-28 19:33:42 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-09-01 11:38:06 +0100
commitac8c62c4e5a3f24e6d47f52ec1bfb20994caefa5 (patch)
tree680716efeb759ff5a8b58d73fe68e3a68b15c3cd /target/arm/vfp_helper.c
parent635187aaa92f21ab001e2868e803b3c5460261ca (diff)
downloadqemu-arm-ac8c62c4e5a3f24e6d47f52ec1bfb20994caefa5.tar.gz
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.c13
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;