diff options
| -rw-r--r-- | target-arm/helper.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 6c0e59f15a..78f3d39203 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -2708,6 +2708,8 @@ uint32_t HELPER(vfp_fcvt_f32_to_f16)(float32 a, CPUState *env) } #define float32_two make_float32(0x40000000) +#define float32_three make_float32(0x40400000) +#define float32_one_point_five make_float32(0x3fc00000) float32 HELPER(recps_f32)(float32 a, float32 b, CPUState *env) { @@ -2722,16 +2724,13 @@ float32 HELPER(recps_f32)(float32 a, float32 b, CPUState *env) float32 HELPER(rsqrts_f32)(float32 a, float32 b, CPUState *env) { float_status *s = &env->vfp.standard_fp_status; - float32 two = int32_to_float32(2, s); - float32 three = int32_to_float32(3, s); float32 product; if ((float32_is_infinity(a) && float32_is_zero_or_denormal(b)) || (float32_is_infinity(b) && float32_is_zero_or_denormal(a))) { - product = float32_zero; - } else { - product = float32_mul(a, b, s); + return float32_one_point_five; } - return float32_div(float32_sub(three, product, s), two, s); + product = float32_mul(a, b, s); + return float32_div(float32_sub(float32_three, product, s), float32_two, s); } /* NEON helpers. */ |