fpu: Change parts_float_to_float_narrow to parts128_to_parts64
Rename and return FloatParts64 structure. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson committed
Apr 25, 2026 at 19:59 UTC
99a7b9b348061b0acd1b311e5fc4f67d8c40ea33
1 file changed
+15
-15
fpu/softfloat.c
+15
-15
@@ -2563,29 +2563,31 @@ static void parts128_float_to_float(FloatParts128 *a, float_status *s)
2563
}
2564
}
2565
2566
-static void parts_float_to_float_narrow(FloatParts64 *a, FloatParts128 *b,
2567
- float_status *s)
2566
+static FloatParts64 parts128_to_parts64(FloatParts128 *b, float_status *s)
2567
{
2569
- a->cls = b->cls;
2570
- a->sign = b->sign;
2571
- a->exp = b->exp;
2568
+ FloatParts64 r = {
2569
+ .cls = b->cls,
2570
+ .sign = b->sign,
2571
+ .exp = b->exp,
2572
+ };
2573
2573
- switch (a->cls) {
2574
+ switch (r.cls) {
2575
case float_class_denormal:
2576
float_raise(float_flag_input_denormal_used, s);
2577
/* fall through */
2578
case float_class_normal:
2578
- frac64_truncjam(a, b);
2579
+ frac64_truncjam(&r, b);
2580
break;
2581
case float_class_snan:
2582
case float_class_qnan:
2583
/* Discard the low bits of the NaN. */
2583
- a->frac = b->frac_hi;
2584
- parts64_return_nan(a, s);
2584
+ r.frac = b->frac_hi;
2585
+ parts64_return_nan(&r, s);
2586
break;
2587
default:
2588
break;
2589
}
2590
+ return r;
2591
}
2592
2593
static void parts_float_to_float_widen(FloatParts128 *a, FloatParts64 *b,
@@ -2773,18 +2775,16 @@ bfloat16 float64_to_bfloat16(float64 a, float_status *s)
2775
float32 float128_to_float32(float128 a, float_status *s)
2776
{
2777
FloatParts128 p128 = float128_unpack_canonical(a, s);
2776
- FloatParts64 p64;
2778
+ FloatParts64 p64 = parts128_to_parts64(&p128, s);
2779
2778
- parts_float_to_float_narrow(&p64, &p128, s);
2780
return float32_round_pack_canonical(&p64, s);
2781
}
2782
2783
float64 float128_to_float64(float128 a, float_status *s)
2784
{
2785
FloatParts128 p128 = float128_unpack_canonical(a, s);
2785
- FloatParts64 p64;
2786
+ FloatParts64 p64 = parts128_to_parts64(&p128, s);
2787
2787
- parts_float_to_float_narrow(&p64, &p128, s);
2788
return float64_round_pack_canonical(&p64, s);
2789
}
2790
@@ -2812,7 +2812,7 @@ float32 floatx80_to_float32(floatx80 a, float_status *s)
2812
FloatParts128 p128;
2813
2814
if (floatx80_unpack_canonical(&p128, a, s)) {
2815
- parts_float_to_float_narrow(&p64, &p128, s);
2815
+ p64 = parts128_to_parts64(&p128, s);
2816
} else {
2817
parts64_default_nan(&p64, s);
2818
}
@@ -2825,7 +2825,7 @@ float64 floatx80_to_float64(floatx80 a, float_status *s)
2825
FloatParts128 p128;
2826
2827
if (floatx80_unpack_canonical(&p128, a, s)) {
2828
- parts_float_to_float_narrow(&p64, &p128, s);
2828
+ p64 = parts128_to_parts64(&p128, s);
2829
} else {
2830
parts64_default_nan(&p64, s);
2831
}