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target/arm: Use float*_muladd_scalbn

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Use the scalbn interface instead of float_muladd_halve_result.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-12-07 17:43:10 -06:00
parent 910556bbf4
commit 912400a362
1 changed files with 3 additions and 3 deletions
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6
target/arm/tcg/helper-a64.c
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@ -262,7 +262,7 @@ uint32_t HELPER(rsqrtsf_f16)(uint32_t a, uint32_t b, float_status *fpst)
(float16_is_infinity(b) && float16_is_zero(a))) { (float16_is_infinity(b) && float16_is_zero(a))) {
return float16_one_point_five; return float16_one_point_five;
} }
return float16_muladd(a, b, float16_three, float_muladd_halve_result, fpst); return float16_muladd_scalbn(a, b, float16_three, -1, 0, fpst);
} }
float32 HELPER(rsqrtsf_f32)(float32 a, float32 b, float_status *fpst) float32 HELPER(rsqrtsf_f32)(float32 a, float32 b, float_status *fpst)
@ -275,7 +275,7 @@ float32 HELPER(rsqrtsf_f32)(float32 a, float32 b, float_status *fpst)
(float32_is_infinity(b) && float32_is_zero(a))) { (float32_is_infinity(b) && float32_is_zero(a))) {
return float32_one_point_five; return float32_one_point_five;
} }
return float32_muladd(a, b, float32_three, float_muladd_halve_result, fpst); return float32_muladd_scalbn(a, b, float32_three, -1, 0, fpst);
} }
float64 HELPER(rsqrtsf_f64)(float64 a, float64 b, float_status *fpst) float64 HELPER(rsqrtsf_f64)(float64 a, float64 b, float_status *fpst)
@ -288,7 +288,7 @@ float64 HELPER(rsqrtsf_f64)(float64 a, float64 b, float_status *fpst)
(float64_is_infinity(b) && float64_is_zero(a))) { (float64_is_infinity(b) && float64_is_zero(a))) {
return float64_one_point_five; return float64_one_point_five;
} }
return float64_muladd(a, b, float64_three, float_muladd_halve_result, fpst); return float64_muladd_scalbn(a, b, float64_three, -1, 0, fpst);
} }
/* Floating-point reciprocal exponent - see FPRecpX in ARM ARM */ /* Floating-point reciprocal exponent - see FPRecpX in ARM ARM */